Warning: Permanently added '2620:52:3:1:dead:beef:cafe:c14b' (ED25519) to the list of known hosts.

cmd: ['dist-git-client', 'sources']
cwd: /var/lib/copr-rpmbuild/workspace/workdir-ab7reb7l/R-CRAN-mlpack
rc: 0
stdout: 
stderr: INFO: Reading stdout from command: git rev-parse --abbrev-ref HEAD
INFO: Reading stdout from command: git rev-parse HEAD
INFO: Reading sources specification file: sources
INFO: Downloading mlpack_4.6.2.tar.gz
INFO: Reading stdout from command: curl --help all
INFO: Calling: curl -H Pragma: -o mlpack_4.6.2.tar.gz --location --connect-timeout 60 --retry 3 --retry-delay 10 --remote-time --show-error --fail --retry-all-errors https://copr-dist-git.fedorainfracloud.org/repo/pkgs/iucar/cran/R-CRAN-mlpack/mlpack_4.6.2.tar.gz/md5/b2c307a57aa8dfb60c7897436fbccd65/mlpack_4.6.2.tar.gz
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100 1707k  100 1707k    0     0  19.0M      0 --:--:-- --:--:-- --:--:-- 19.1M
INFO: Reading stdout from command: md5sum mlpack_4.6.2.tar.gz

Running (timeout=18000): unbuffer mock --spec /var/lib/copr-rpmbuild/workspace/workdir-ab7reb7l/R-CRAN-mlpack/R-CRAN-mlpack.spec --sources /var/lib/copr-rpmbuild/workspace/workdir-ab7reb7l/R-CRAN-mlpack --resultdir /var/lib/copr-rpmbuild/results --uniqueext 1747965636.766226 -r /var/lib/copr-rpmbuild/results/configs/child.cfg
INFO: mock.py version 6.1 starting (python version = 3.13.0, NVR = mock-6.1-1.fc41), args: /usr/libexec/mock/mock --spec /var/lib/copr-rpmbuild/workspace/workdir-ab7reb7l/R-CRAN-mlpack/R-CRAN-mlpack.spec --sources /var/lib/copr-rpmbuild/workspace/workdir-ab7reb7l/R-CRAN-mlpack --resultdir /var/lib/copr-rpmbuild/results --uniqueext 1747965636.766226 -r /var/lib/copr-rpmbuild/results/configs/child.cfg
Start: init plugins
INFO: tmpfs initialized
INFO: selinux enabled
INFO: chroot_scan: initialized
INFO: compress_logs: initialized
Finish: init plugins
INFO: Signal handler active
Start: run
INFO: Start(/var/lib/copr-rpmbuild/workspace/workdir-ab7reb7l/R-CRAN-mlpack/R-CRAN-mlpack.spec)  Config(fedora-41-x86_64)
Start: clean chroot
Finish: clean chroot
Mock Version: 6.1
INFO: Mock Version: 6.1
Start: chroot init
INFO: mounting tmpfs at /var/lib/mock/fedora-41-x86_64-1747965636.766226/root.
INFO: calling preinit hooks
INFO: enabled root cache
INFO: enabled package manager cache
Start: cleaning package manager metadata
Finish: cleaning package manager metadata
INFO: enabled HW Info plugin
INFO: Package manager dnf5 detected and used (fallback)
INFO: Buildroot is handled by package management from host and used with --installroot:
  rpm-4.20.1-1.fc41.x86_64
  rpm-sequoia-1.7.0-2.fc41.x86_64
  python3-dnf-4.23.0-1.fc41.noarch
  python3-dnf-plugins-core-4.10.1-1.fc41.noarch
  dnf5-5.2.13.1-1.fc41.x86_64
  dnf5-plugins-5.2.13.1-1.fc41.x86_64
Start: installing minimal buildroot with dnf5
Updating and loading repositories:
 updates                                100% |  16.5 MiB/s |   9.9 MiB |  00m01s
 fedora                                 100% |  21.4 MiB/s |  35.3 MiB |  00m02s
 Copr repository                        100% |  56.7 MiB/s |  13.0 MiB |  00m00s
Repositories loaded.
Package                            Arch   Version                     Repository      Size
Installing group/module packages:
 bash                              x86_64 5.2.32-1.fc41               fedora       8.2 MiB
 bzip2                             x86_64 1.0.8-19.fc41               fedora      95.7 KiB
 coreutils                         x86_64 9.5-11.fc41                 updates      5.7 MiB
 cpio                              x86_64 2.15-2.fc41                 fedora       1.1 MiB
 diffutils                         x86_64 3.10-8.fc41                 fedora       1.6 MiB
 fedora-release-common             noarch 41-32                       updates     19.7 KiB
 findutils                         x86_64 1:4.10.0-4.fc41             fedora       1.8 MiB
 gawk                              x86_64 5.3.0-4.fc41                fedora       1.7 MiB
 glibc-minimal-langpack            x86_64 2.40-25.fc41                updates      0.0   B
 grep                              x86_64 3.11-9.fc41                 fedora       1.0 MiB
 gzip                              x86_64 1.13-2.fc41                 fedora     389.0 KiB
 info                              x86_64 7.1.1-1.fc41                updates    361.7 KiB
 patch                             x86_64 2.7.6-25.fc41               fedora     266.7 KiB
 redhat-rpm-config                 noarch 294-1.fc41                  updates    183.6 KiB
 rpm-build                         x86_64 4.20.1-1.fc41               updates    193.8 KiB
 sed                               x86_64 4.9-3.fc41                  fedora     861.5 KiB
 shadow-utils                      x86_64 2:4.15.1-12.fc41            fedora       4.1 MiB
 tar                               x86_64 2:1.35-4.fc41               fedora       2.9 MiB
 unzip                             x86_64 6.0-64.fc41                 fedora     386.8 KiB
 util-linux                        x86_64 2.40.4-1.fc41               updates      3.6 MiB
 which                             x86_64 2.21-42.fc41                fedora      80.2 KiB
 xz                                x86_64 1:5.8.1-2.fc41              updates      1.3 MiB
Installing dependencies:
 add-determinism                   x86_64 0.3.6-3.fc41                updates      2.4 MiB
 alternatives                      x86_64 1.31-1.fc41                 updates     64.8 KiB
 ansible-srpm-macros               noarch 1-16.fc41                   fedora      35.7 KiB
 audit-libs                        x86_64 4.0.3-1.fc41                updates    351.3 KiB
 authselect                        x86_64 1.5.0-8.fc41                fedora     157.6 KiB
 authselect-libs                   x86_64 1.5.0-8.fc41                fedora     822.2 KiB
 basesystem                        noarch 11-21.fc41                  fedora       0.0   B
 binutils                          x86_64 2.43.1-5.fc41               updates     27.4 MiB
 build-reproducibility-srpm-macros noarch 0.3.6-3.fc41                updates    735.0   B
 bzip2-libs                        x86_64 1.0.8-19.fc41               fedora      80.7 KiB
 ca-certificates                   noarch 2024.2.69_v8.0.401-1.0.fc41 fedora       2.4 MiB
 coreutils-common                  x86_64 9.5-11.fc41                 updates     11.2 MiB
 cracklib                          x86_64 2.9.11-6.fc41               fedora     238.9 KiB
 crypto-policies                   noarch 20250124-1.git4d262e7.fc41  updates    137.4 KiB
 curl                              x86_64 8.9.1-3.fc41                updates    793.5 KiB
 cyrus-sasl-lib                    x86_64 2.1.28-27.fc41              fedora       2.3 MiB
 debugedit                         x86_64 5.1-6.fc41                  updates    200.9 KiB
 dwz                               x86_64 0.15-8.fc41                 fedora     298.9 KiB
 ed                                x86_64 1.20.2-2.fc41               fedora     146.9 KiB
 efi-srpm-macros                   noarch 5-13.fc41                   updates     40.2 KiB
 elfutils                          x86_64 0.193-2.fc41                updates      3.0 MiB
 elfutils-debuginfod-client        x86_64 0.193-2.fc41                updates     84.1 KiB
 elfutils-default-yama-scope       noarch 0.193-2.fc41                updates      1.8 KiB
 elfutils-libelf                   x86_64 0.193-2.fc41                updates      1.2 MiB
 elfutils-libs                     x86_64 0.193-2.fc41                updates    686.6 KiB
 fedora-gpg-keys                   noarch 41-1                        fedora     126.4 KiB
 fedora-release                    noarch 41-32                       updates      0.0   B
 fedora-release-identity-basic     noarch 41-32                       updates    654.0   B
 fedora-repos                      noarch 41-1                        fedora       4.9 KiB
 file                              x86_64 5.45-7.fc41                 fedora     103.5 KiB
 file-libs                         x86_64 5.45-7.fc41                 fedora       9.9 MiB
 filesystem                        x86_64 3.18-23.fc41                fedora     106.0   B
 fonts-srpm-macros                 noarch 1:2.0.5-17.fc41             fedora      55.8 KiB
 forge-srpm-macros                 noarch 0.4.0-1.fc41                updates     38.9 KiB
 fpc-srpm-macros                   noarch 1.3-13.fc41                 fedora     144.0   B
 gdb-minimal                       x86_64 16.3-1.fc41                 updates     13.3 MiB
 gdbm                              x86_64 1:1.23-7.fc41               fedora     460.9 KiB
 gdbm-libs                         x86_64 1:1.23-7.fc41               fedora     121.9 KiB
 ghc-srpm-macros                   noarch 1.9.1-2.fc41                fedora     747.0   B
 glibc                             x86_64 2.40-25.fc41                updates      6.7 MiB
 glibc-common                      x86_64 2.40-25.fc41                updates      1.0 MiB
 glibc-gconv-extra                 x86_64 2.40-25.fc41                updates      7.9 MiB
 gmp                               x86_64 1:6.3.0-2.fc41              fedora     811.4 KiB
 gnat-srpm-macros                  noarch 6-6.fc41                    fedora       1.0 KiB
 go-srpm-macros                    noarch 3.6.0-5.fc41                updates     60.8 KiB
 jansson                           x86_64 2.13.1-10.fc41              fedora      88.3 KiB
 json-c                            x86_64 0.17-4.fc41                 fedora      82.4 KiB
 kernel-srpm-macros                noarch 1.0-24.fc41                 fedora       1.9 KiB
 keyutils-libs                     x86_64 1.6.3-4.fc41                fedora      54.4 KiB
 krb5-libs                         x86_64 1.21.3-4.fc41               updates      2.3 MiB
 libacl                            x86_64 2.3.2-2.fc41                fedora      40.0 KiB
 libarchive                        x86_64 3.7.4-4.fc41                updates    926.6 KiB
 libattr                           x86_64 2.5.2-4.fc41                fedora      28.5 KiB
 libblkid                          x86_64 2.40.4-1.fc41               updates    257.2 KiB
 libbrotli                         x86_64 1.1.0-5.fc41                fedora     837.6 KiB
 libcap                            x86_64 2.70-4.fc41                 fedora     220.2 KiB
 libcap-ng                         x86_64 0.8.5-3.fc41                fedora      69.2 KiB
 libcom_err                        x86_64 1.47.1-6.fc41               fedora      67.2 KiB
 libcurl                           x86_64 8.9.1-3.fc41                updates    809.3 KiB
 libeconf                          x86_64 0.6.2-3.fc41                fedora      58.0 KiB
 libevent                          x86_64 2.1.12-14.fc41              fedora     895.7 KiB
 libfdisk                          x86_64 2.40.4-1.fc41               updates    356.4 KiB
 libffi                            x86_64 3.4.6-3.fc41                fedora      86.4 KiB
 libgcc                            x86_64 14.2.1-7.fc41               updates    270.9 KiB
 libgomp                           x86_64 14.2.1-7.fc41               updates    514.2 KiB
 libidn2                           x86_64 2.3.8-1.fc41                updates    556.6 KiB
 libmount                          x86_64 2.40.4-1.fc41               updates    348.8 KiB
 libnghttp2                        x86_64 1.62.1-3.fc41               updates    174.1 KiB
 libnsl2                           x86_64 2.0.1-2.fc41                fedora      57.9 KiB
 libpkgconf                        x86_64 2.3.0-1.fc41                fedora      78.2 KiB
 libpsl                            x86_64 0.21.5-4.fc41               fedora      80.5 KiB
 libpwquality                      x86_64 1.4.5-11.fc41               fedora     417.8 KiB
 libselinux                        x86_64 3.7-5.fc41                  fedora     181.0 KiB
 libsemanage                       x86_64 3.7-2.fc41                  fedora     293.5 KiB
 libsepol                          x86_64 3.7-2.fc41                  fedora     817.8 KiB
 libsmartcols                      x86_64 2.40.4-1.fc41               updates    176.2 KiB
 libssh                            x86_64 0.10.6-8.fc41               fedora     513.3 KiB
 libssh-config                     noarch 0.10.6-8.fc41               fedora     277.0   B
 libstdc++                         x86_64 14.2.1-7.fc41               updates      2.7 MiB
 libtasn1                          x86_64 4.20.0-1.fc41               updates    180.4 KiB
 libtirpc                          x86_64 1.3.6-1.rc3.fc41            updates    197.6 KiB
 libtool-ltdl                      x86_64 2.4.7-12.fc41               fedora      66.2 KiB
 libunistring                      x86_64 1.1-8.fc41                  fedora       1.7 MiB
 libutempter                       x86_64 1.2.1-15.fc41               fedora      57.7 KiB
 libuuid                           x86_64 2.40.4-1.fc41               updates     39.9 KiB
 libverto                          x86_64 0.3.2-9.fc41                fedora      29.5 KiB
 libxcrypt                         x86_64 4.4.38-7.fc41               updates    288.5 KiB
 libxml2                           x86_64 2.12.10-1.fc41              updates      1.7 MiB
 libzstd                           x86_64 1.5.7-1.fc41                updates    804.0 KiB
 lua-libs                          x86_64 5.4.7-3.fc41                updates    285.0 KiB
 lua-srpm-macros                   noarch 1-14.fc41                   fedora       1.3 KiB
 lz4-libs                          x86_64 1.10.0-1.fc41               fedora     145.5 KiB
 mpfr                              x86_64 4.2.1-5.fc41                fedora     832.1 KiB
 ncurses-base                      noarch 6.5-2.20240629.fc41         fedora     326.3 KiB
 ncurses-libs                      x86_64 6.5-2.20240629.fc41         fedora     975.2 KiB
 ocaml-srpm-macros                 noarch 10-3.fc41                   fedora       1.9 KiB
 openblas-srpm-macros              noarch 2-18.fc41                   fedora     112.0   B
 openldap                          x86_64 2.6.9-1.fc41                updates    645.3 KiB
 openssl-libs                      x86_64 1:3.2.4-1.fc41              updates      7.8 MiB
 p11-kit                           x86_64 0.25.5-3.fc41               fedora       2.2 MiB
 p11-kit-trust                     x86_64 0.25.5-3.fc41               fedora     391.4 KiB
 package-notes-srpm-macros         noarch 0.5-12.fc41                 fedora       1.6 KiB
 pam                               x86_64 1.6.1-7.fc41                updates      1.8 MiB
 pam-libs                          x86_64 1.6.1-7.fc41                updates    139.0 KiB
 pcre2                             x86_64 10.44-1.fc41.1              fedora     653.5 KiB
 pcre2-syntax                      noarch 10.44-1.fc41.1              fedora     251.6 KiB
 perl-srpm-macros                  noarch 1-56.fc41                   fedora     861.0   B
 pkgconf                           x86_64 2.3.0-1.fc41                fedora      88.6 KiB
 pkgconf-m4                        noarch 2.3.0-1.fc41                fedora      14.4 KiB
 pkgconf-pkg-config                x86_64 2.3.0-1.fc41                fedora     989.0   B
 popt                              x86_64 1.19-7.fc41                 fedora     136.9 KiB
 publicsuffix-list-dafsa           noarch 20250116-1.fc41             updates     68.5 KiB
 pyproject-srpm-macros             noarch 1.18.1-1.fc41               updates      1.9 KiB
 python-srpm-macros                noarch 3.13-3.fc41                 fedora      51.0 KiB
 qt5-srpm-macros                   noarch 5.15.15-1.fc41              fedora     500.0   B
 qt6-srpm-macros                   noarch 6.8.2-1.fc41                updates    456.0   B
 readline                          x86_64 8.2-10.fc41                 fedora     493.2 KiB
 rpm                               x86_64 4.20.1-1.fc41               updates      3.1 MiB
 rpm-build-libs                    x86_64 4.20.1-1.fc41               updates    210.7 KiB
 rpm-libs                          x86_64 4.20.1-1.fc41               updates    730.0 KiB
 rpm-sequoia                       x86_64 1.7.0-5.fc41                updates      2.4 MiB
 rust-srpm-macros                  noarch 26.3-3.fc41                 fedora       4.8 KiB
 setup                             noarch 2.15.0-8.fc41               updates    720.7 KiB
 sqlite-libs                       x86_64 3.46.1-3.fc41               updates      1.5 MiB
 systemd-libs                      x86_64 256.12-1.fc41               updates      2.0 MiB
 util-linux-core                   x86_64 2.40.4-1.fc41               updates      1.5 MiB
 xxhash-libs                       x86_64 0.8.3-1.fc41                updates     88.5 KiB
 xz-libs                           x86_64 1:5.8.1-2.fc41              updates    217.9 KiB
 zig-srpm-macros                   noarch 1-3.fc41                    fedora       1.1 KiB
 zip                               x86_64 3.0-41.fc41                 fedora     703.2 KiB
 zlib-ng-compat                    x86_64 2.2.3-2.fc41                updates    141.9 KiB
 zstd                              x86_64 1.5.7-1.fc41                updates      1.7 MiB
Installing groups:
 Buildsystem building group                                                               

Transaction Summary:
 Installing:       154 packages

Total size of inbound packages is 53 MiB. Need to download 53 MiB.
After this operation, 181 MiB extra will be used (install 181 MiB, remove 0 B).
[  1/154] cpio-0:2.15-2.fc41.x86_64     100% |   4.7 MiB/s | 291.8 KiB |  00m00s
[  2/154] bzip2-0:1.0.8-19.fc41.x86_64  100% | 861.0 KiB/s |  52.5 KiB |  00m00s
[  3/154] diffutils-0:3.10-8.fc41.x86_6 100% |  18.0 MiB/s | 405.4 KiB |  00m00s
[  4/154] bash-0:5.2.32-1.fc41.x86_64   100% |  17.2 MiB/s |   1.8 MiB |  00m00s
[  5/154] grep-0:3.11-9.fc41.x86_64     100% |  11.7 MiB/s | 299.7 KiB |  00m00s
[  6/154] gzip-0:1.13-2.fc41.x86_64     100% |   8.3 MiB/s | 170.2 KiB |  00m00s
[  7/154] patch-0:2.7.6-25.fc41.x86_64  100% |   5.6 MiB/s | 131.0 KiB |  00m00s
[  8/154] findutils-1:4.10.0-4.fc41.x86 100% |   7.4 MiB/s | 548.5 KiB |  00m00s
[  9/154] sed-0:4.9-3.fc41.x86_64       100% |  12.9 MiB/s | 317.7 KiB |  00m00s
[ 10/154] unzip-0:6.0-64.fc41.x86_64    100% |   3.7 MiB/s | 184.9 KiB |  00m00s
[ 11/154] tar-2:1.35-4.fc41.x86_64      100% |  12.5 MiB/s | 860.7 KiB |  00m00s
[ 12/154] shadow-utils-2:4.15.1-12.fc41 100% |  17.1 MiB/s |   1.3 MiB |  00m00s
[ 13/154] which-0:2.21-42.fc41.x86_64   100% |   4.1 MiB/s |  41.6 KiB |  00m00s
[ 14/154] gawk-0:5.3.0-4.fc41.x86_64    100% |  28.2 MiB/s |   1.1 MiB |  00m00s
[ 15/154] fedora-release-common-0:41-32 100% | 167.1 KiB/s |  23.9 KiB |  00m00s
[ 16/154] glibc-minimal-langpack-0:2.40 100% | 457.6 KiB/s |  89.7 KiB |  00m00s
[ 17/154] info-0:7.1.1-1.fc41.x86_64    100% |   1.3 MiB/s | 182.0 KiB |  00m00s
[ 18/154] redhat-rpm-config-0:294-1.fc4 100% |   1.4 MiB/s |  79.0 KiB |  00m00s
[ 19/154] rpm-build-0:4.20.1-1.fc41.x86 100% |   1.9 MiB/s |  81.5 KiB |  00m00s
[ 20/154] coreutils-0:9.5-11.fc41.x86_6 100% |   3.2 MiB/s |   1.1 MiB |  00m00s
[ 21/154] filesystem-0:3.18-23.fc41.x86 100% |  22.2 MiB/s |   1.1 MiB |  00m00s
[ 22/154] ncurses-libs-0:6.5-2.20240629 100% |  14.2 MiB/s | 334.0 KiB |  00m00s
[ 23/154] xz-1:5.8.1-2.fc41.x86_64      100% |   5.8 MiB/s | 572.9 KiB |  00m00s
[ 24/154] bzip2-libs-0:1.0.8-19.fc41.x8 100% |   1.9 MiB/s |  41.1 KiB |  00m00s
[ 25/154] util-linux-0:2.40.4-1.fc41.x8 100% |   6.9 MiB/s |   1.1 MiB |  00m00s
[ 26/154] libselinux-0:3.7-5.fc41.x86_6 100% |   2.8 MiB/s |  87.8 KiB |  00m00s
[ 27/154] pcre2-0:10.44-1.fc41.1.x86_64 100% |   6.1 MiB/s | 243.1 KiB |  00m00s
[ 28/154] ed-0:1.20.2-2.fc41.x86_64     100% |   1.9 MiB/s |  81.8 KiB |  00m00s
[ 29/154] libattr-0:2.5.2-4.fc41.x86_64 100% | 378.6 KiB/s |  18.2 KiB |  00m00s
[ 30/154] libacl-0:2.3.2-2.fc41.x86_64  100% | 720.6 KiB/s |  24.5 KiB |  00m00s
[ 31/154] libeconf-0:0.6.2-3.fc41.x86_6 100% |   1.4 MiB/s |  32.2 KiB |  00m00s
[ 32/154] libsemanage-0:3.7-2.fc41.x86_ 100% |   4.1 MiB/s | 116.3 KiB |  00m00s
[ 33/154] gmp-1:6.3.0-2.fc41.x86_64     100% |   6.6 MiB/s | 318.0 KiB |  00m00s
[ 34/154] libcap-0:2.70-4.fc41.x86_64   100% |   1.7 MiB/s |  86.7 KiB |  00m00s
[ 35/154] fedora-repos-0:41-1.noarch    100% | 271.5 KiB/s |   9.2 KiB |  00m00s
[ 36/154] coreutils-common-0:9.5-11.fc4 100% |  21.2 MiB/s |   2.1 MiB |  00m00s
[ 37/154] mpfr-0:4.2.1-5.fc41.x86_64    100% |   7.9 MiB/s | 346.3 KiB |  00m00s
[ 38/154] glibc-common-0:2.40-25.fc41.x 100% |  10.0 MiB/s | 378.2 KiB |  00m00s
[ 39/154] readline-0:8.2-10.fc41.x86_64 100% |   4.3 MiB/s | 213.2 KiB |  00m00s
[ 40/154] ansible-srpm-macros-0:1-16.fc 100% | 546.7 KiB/s |  20.8 KiB |  00m00s
[ 41/154] fonts-srpm-macros-1:2.0.5-17. 100% | 749.1 KiB/s |  27.0 KiB |  00m00s
[ 42/154] dwz-0:0.15-8.fc41.x86_64      100% |   1.9 MiB/s | 138.9 KiB |  00m00s
[ 43/154] fpc-srpm-macros-0:1.3-13.fc41 100% | 398.1 KiB/s |   8.0 KiB |  00m00s
[ 44/154] ghc-srpm-macros-0:1.9.1-2.fc4 100% | 292.1 KiB/s |   9.1 KiB |  00m00s
[ 45/154] gnat-srpm-macros-0:6-6.fc41.n 100% | 186.5 KiB/s |   9.0 KiB |  00m00s
[ 46/154] kernel-srpm-macros-0:1.0-24.f 100% | 379.5 KiB/s |   9.9 KiB |  00m00s
[ 47/154] lua-srpm-macros-0:1-14.fc41.n 100% | 341.5 KiB/s |   8.9 KiB |  00m00s
[ 48/154] openblas-srpm-macros-0:2-18.f 100% | 296.7 KiB/s |   7.7 KiB |  00m00s
[ 49/154] package-notes-srpm-macros-0:0 100% | 351.0 KiB/s |   9.8 KiB |  00m00s
[ 50/154] perl-srpm-macros-0:1-56.fc41. 100% | 567.5 KiB/s |   8.5 KiB |  00m00s
[ 51/154] ocaml-srpm-macros-0:10-3.fc41 100% |  93.9 KiB/s |   9.2 KiB |  00m00s
[ 52/154] python-srpm-macros-0:3.13-3.f 100% |   1.5 MiB/s |  23.7 KiB |  00m00s
[ 53/154] qt5-srpm-macros-0:5.15.15-1.f 100% | 167.9 KiB/s |   8.9 KiB |  00m00s
[ 54/154] zig-srpm-macros-0:1-3.fc41.no 100% | 253.8 KiB/s |   8.1 KiB |  00m00s
[ 55/154] file-0:5.45-7.fc41.x86_64     100% | 143.2 KiB/s |  49.1 KiB |  00m00s
[ 56/154] rpm-0:4.20.1-1.fc41.x86_64    100% |  13.1 MiB/s | 549.6 KiB |  00m00s
[ 57/154] zip-0:3.0-41.fc41.x86_64      100% |   3.2 MiB/s | 264.8 KiB |  00m00s
[ 58/154] util-linux-core-0:2.40.4-1.fc 100% |   9.1 MiB/s | 492.2 KiB |  00m00s
[ 59/154] libcap-ng-0:0.8.5-3.fc41.x86_ 100% | 880.1 KiB/s |  32.6 KiB |  00m00s
[ 60/154] libutempter-0:1.2.1-15.fc41.x 100% |   1.3 MiB/s |  26.6 KiB |  00m00s
[ 61/154] popt-0:1.19-7.fc41.x86_64     100% | 507.0 KiB/s |  65.9 KiB |  00m00s
[ 62/154] xz-libs-1:5.8.1-2.fc41.x86_64 100% |   3.2 MiB/s | 112.4 KiB |  00m00s
[ 63/154] libsepol-0:3.7-2.fc41.x86_64  100% |   3.2 MiB/s | 342.2 KiB |  00m00s
[ 64/154] ncurses-base-0:6.5-2.20240629 100% | 640.0 KiB/s |  88.3 KiB |  00m00s
[ 65/154] pcre2-syntax-0:10.44-1.fc41.1 100% |   1.8 MiB/s | 149.9 KiB |  00m00s
[ 66/154] fedora-gpg-keys-0:41-1.noarch 100% |   1.6 MiB/s | 133.7 KiB |  00m00s
[ 67/154] glibc-0:2.40-25.fc41.x86_64   100% |  23.0 MiB/s |   2.2 MiB |  00m00s
[ 68/154] file-libs-0:5.45-7.fc41.x86_6 100% |   5.3 MiB/s | 762.0 KiB |  00m00s
[ 69/154] glibc-gconv-extra-0:2.40-25.f 100% |  31.4 MiB/s |   1.7 MiB |  00m00s
[ 70/154] basesystem-0:11-21.fc41.noarc 100% | 273.0 KiB/s |   7.4 KiB |  00m00s
[ 71/154] rpm-libs-0:4.20.1-1.fc41.x86_ 100% |   8.5 MiB/s | 312.0 KiB |  00m00s
[ 72/154] rpm-build-libs-0:4.20.1-1.fc4 100% |   2.7 MiB/s |  98.8 KiB |  00m00s
[ 73/154] audit-libs-0:4.0.3-1.fc41.x86 100% |   3.0 MiB/s | 124.8 KiB |  00m00s
[ 74/154] libxcrypt-0:4.4.38-7.fc41.x86 100% |   3.4 MiB/s | 127.5 KiB |  00m00s
[ 75/154] rust-srpm-macros-0:26.3-3.fc4 100% |  16.4 KiB/s |  12.1 KiB |  00m01s
[ 76/154] pam-libs-0:1.6.1-7.fc41.x86_6 100% |   1.4 MiB/s |  57.4 KiB |  00m00s
[ 77/154] setup-0:2.15.0-8.fc41.noarch  100% |   2.8 MiB/s | 154.6 KiB |  00m00s
[ 78/154] forge-srpm-macros-0:0.4.0-1.f 100% | 597.1 KiB/s |  19.7 KiB |  00m00s
[ 79/154] libgcc-0:14.2.1-7.fc41.x86_64 100% |   1.9 MiB/s | 134.0 KiB |  00m00s
[ 80/154] zlib-ng-compat-0:2.2.3-2.fc41 100% |   1.5 MiB/s |  78.9 KiB |  00m00s
[ 81/154] elfutils-libelf-0:0.193-2.fc4 100% |   5.6 MiB/s | 207.5 KiB |  00m00s
[ 82/154] elfutils-libs-0:0.193-2.fc41. 100% |   6.7 MiB/s | 268.0 KiB |  00m00s
[ 83/154] elfutils-debuginfod-client-0: 100% |   1.3 MiB/s |  47.0 KiB |  00m00s
[ 84/154] elfutils-0:0.193-2.fc41.x86_6 100% |  13.8 MiB/s | 566.7 KiB |  00m00s
[ 85/154] json-c-0:0.17-4.fc41.x86_64   100% | 814.4 KiB/s |  44.0 KiB |  00m00s
[ 86/154] libblkid-0:2.40.4-1.fc41.x86_ 100% |   2.2 MiB/s | 119.2 KiB |  00m00s
[ 87/154] libuuid-0:2.40.4-1.fc41.x86_6 100% | 501.8 KiB/s |  27.1 KiB |  00m00s
[ 88/154] libmount-0:2.40.4-1.fc41.x86_ 100% |   3.3 MiB/s | 149.0 KiB |  00m00s
[ 89/154] libsmartcols-0:2.40.4-1.fc41. 100% |   1.8 MiB/s |  79.4 KiB |  00m00s
[ 90/154] systemd-libs-0:256.12-1.fc41. 100% |  17.0 MiB/s | 729.6 KiB |  00m00s
[ 91/154] libfdisk-0:2.40.4-1.fc41.x86_ 100% |   4.1 MiB/s | 152.5 KiB |  00m00s
[ 92/154] gdbm-libs-1:1.23-7.fc41.x86_6 100% |   1.7 MiB/s |  56.3 KiB |  00m00s
[ 93/154] pam-0:1.6.1-7.fc41.x86_64     100% |   7.5 MiB/s | 555.0 KiB |  00m00s
[ 94/154] libnsl2-0:2.0.1-2.fc41.x86_64 100% | 846.0 KiB/s |  29.6 KiB |  00m00s
[ 95/154] authselect-0:1.5.0-8.fc41.x86 100% |   1.8 MiB/s | 145.8 KiB |  00m00s
[ 96/154] libpwquality-0:1.4.5-11.fc41. 100% |   4.0 MiB/s | 119.0 KiB |  00m00s
[ 97/154] authselect-libs-0:1.5.0-8.fc4 100% |   6.5 MiB/s | 218.0 KiB |  00m00s
[ 98/154] libzstd-0:1.5.7-1.fc41.x86_64 100% |   5.7 MiB/s | 315.4 KiB |  00m00s
[ 99/154] cracklib-0:2.9.11-6.fc41.x86_ 100% |   1.2 MiB/s |  92.1 KiB |  00m00s
[100/154] lua-libs-0:5.4.7-3.fc41.x86_6 100% |   2.4 MiB/s | 131.5 KiB |  00m00s
[101/154] sqlite-libs-0:3.46.1-3.fc41.x 100% |  14.8 MiB/s | 742.5 KiB |  00m00s
[102/154] libgomp-0:14.2.1-7.fc41.x86_6 100% |   4.6 MiB/s | 349.5 KiB |  00m00s
[103/154] rpm-sequoia-0:1.7.0-5.fc41.x8 100% |   8.7 MiB/s | 911.4 KiB |  00m00s
[104/154] jansson-0:2.13.1-10.fc41.x86_ 100% |   1.4 MiB/s |  44.4 KiB |  00m00s
[105/154] debugedit-0:5.1-6.fc41.x86_64 100% |   2.3 MiB/s |  79.3 KiB |  00m00s
[106/154] lz4-libs-0:1.10.0-1.fc41.x86_ 100% | 995.6 KiB/s |  70.7 KiB |  00m00s
[107/154] zstd-0:1.5.7-1.fc41.x86_64    100% |  12.1 MiB/s | 483.3 KiB |  00m00s
[108/154] binutils-0:2.43.1-5.fc41.x86_ 100% |  30.6 MiB/s |   6.3 MiB |  00m00s
[109/154] libarchive-0:3.7.4-4.fc41.x86 100% |   2.9 MiB/s | 409.1 KiB |  00m00s
[110/154] pkgconf-pkg-config-0:2.3.0-1. 100% | 588.9 KiB/s |  10.0 KiB |  00m00s
[111/154] pkgconf-0:2.3.0-1.fc41.x86_64 100% |   3.2 MiB/s |  45.2 KiB |  00m00s
[112/154] pkgconf-m4-0:2.3.0-1.fc41.noa 100% | 954.8 KiB/s |  14.3 KiB |  00m00s
[113/154] libpkgconf-0:2.3.0-1.fc41.x86 100% |   1.4 MiB/s |  38.5 KiB |  00m00s
[114/154] build-reproducibility-srpm-ma 100% | 328.0 KiB/s |  10.8 KiB |  00m00s
[115/154] curl-0:8.9.1-3.fc41.x86_64    100% |   5.4 MiB/s | 311.9 KiB |  00m00s
[116/154] add-determinism-0:0.3.6-3.fc4 100% |  19.9 MiB/s | 875.9 KiB |  00m00s
[117/154] efi-srpm-macros-0:5-13.fc41.n 100% | 680.6 KiB/s |  22.5 KiB |  00m00s
[118/154] go-srpm-macros-0:3.6.0-5.fc41 100% | 847.3 KiB/s |  28.0 KiB |  00m00s
[119/154] pyproject-srpm-macros-0:1.18. 100% | 419.9 KiB/s |  13.9 KiB |  00m00s
[120/154] qt6-srpm-macros-0:6.8.2-1.fc4 100% | 278.6 KiB/s |   9.2 KiB |  00m00s
[121/154] libcom_err-0:1.47.1-6.fc41.x8 100% |   1.1 MiB/s |  26.6 KiB |  00m00s
[122/154] libtirpc-0:1.3.6-1.rc3.fc41.x 100% |   1.7 MiB/s |  89.4 KiB |  00m00s
[123/154] gdbm-1:1.23-7.fc41.x86_64     100% |   4.1 MiB/s | 151.8 KiB |  00m00s
[124/154] openssl-libs-1:3.2.4-1.fc41.x 100% |  19.1 MiB/s |   2.3 MiB |  00m00s
[125/154] crypto-policies-0:20250124-1. 100% |   1.8 MiB/s |  97.8 KiB |  00m00s
[126/154] keyutils-libs-0:1.6.3-4.fc41. 100% | 930.9 KiB/s |  31.6 KiB |  00m00s
[127/154] krb5-libs-0:1.21.3-4.fc41.x86 100% |  14.5 MiB/s | 757.0 KiB |  00m00s
[128/154] libverto-0:0.3.2-9.fc41.x86_6 100% | 795.8 KiB/s |  20.7 KiB |  00m00s
[129/154] elfutils-default-yama-scope-0 100% | 381.3 KiB/s |  12.6 KiB |  00m00s
[130/154] libxml2-0:2.12.10-1.fc41.x86_ 100% |  10.7 MiB/s | 687.5 KiB |  00m00s
[131/154] libstdc++-0:14.2.1-7.fc41.x86 100% |  16.4 MiB/s | 822.8 KiB |  00m00s
[132/154] alternatives-0:1.31-1.fc41.x8 100% | 838.8 KiB/s |  39.4 KiB |  00m00s
[133/154] libffi-0:3.4.6-3.fc41.x86_64  100% |   3.3 MiB/s |  39.9 KiB |  00m00s
[134/154] ca-certificates-0:2024.2.69_v 100% |   2.8 MiB/s | 871.2 KiB |  00m00s
[135/154] p11-kit-trust-0:0.25.5-3.fc41 100% |   3.1 MiB/s | 132.1 KiB |  00m00s
[136/154] p11-kit-0:0.25.5-3.fc41.x86_6 100% |   6.4 MiB/s | 490.9 KiB |  00m00s
[137/154] libtasn1-0:4.20.0-1.fc41.x86_ 100% |   1.5 MiB/s |  74.4 KiB |  00m00s
[138/154] fedora-release-0:41-32.noarch 100% | 214.2 KiB/s |  13.1 KiB |  00m00s
[139/154] fedora-release-identity-basic 100% | 346.1 KiB/s |  13.8 KiB |  00m00s
[140/154] xxhash-libs-0:0.8.3-1.fc41.x8 100% | 335.8 KiB/s |  35.9 KiB |  00m00s
[141/154] libcurl-0:8.9.1-3.fc41.x86_64 100% |   6.6 MiB/s | 350.0 KiB |  00m00s
[142/154] gdb-minimal-0:16.3-1.fc41.x86 100% |  34.0 MiB/s |   4.4 MiB |  00m00s
[143/154] libpsl-0:0.21.5-4.fc41.x86_64 100% |   1.3 MiB/s |  64.1 KiB |  00m00s
[144/154] libunistring-0:1.1-8.fc41.x86 100% |   8.7 MiB/s | 544.8 KiB |  00m00s
[145/154] libssh-0:0.10.6-8.fc41.x86_64 100% |   1.9 MiB/s | 211.8 KiB |  00m00s
[146/154] libbrotli-0:1.1.0-5.fc41.x86_ 100% |   2.7 MiB/s | 340.5 KiB |  00m00s
[147/154] libssh-config-0:0.10.6-8.fc41 100% | 369.6 KiB/s |   9.2 KiB |  00m00s
[148/154] libidn2-0:2.3.8-1.fc41.x86_64 100% |   2.6 MiB/s | 175.0 KiB |  00m00s
[149/154] publicsuffix-list-dafsa-0:202 100% | 852.0 KiB/s |  58.8 KiB |  00m00s
[150/154] libnghttp2-0:1.62.1-3.fc41.x8 100% |   1.3 MiB/s |  76.3 KiB |  00m00s
[151/154] openldap-0:2.6.9-1.fc41.x86_6 100% |   5.3 MiB/s | 255.9 KiB |  00m00s
[152/154] libevent-0:2.1.12-14.fc41.x86 100% |   6.4 MiB/s | 257.5 KiB |  00m00s
[153/154] libtool-ltdl-0:2.4.7-12.fc41. 100% |   2.2 MiB/s |  35.6 KiB |  00m00s
[154/154] cyrus-sasl-lib-0:2.1.28-27.fc 100% |   7.3 MiB/s | 794.9 KiB |  00m00s
--------------------------------------------------------------------------------
[154/154] Total                         100% |  15.4 MiB/s |  53.1 MiB |  00m03s
Running transaction
Importing OpenPGP key 0xE99D6AD1:
 UserID     : "Fedora (41) <fedora-41-primary@fedoraproject.org>"
 Fingerprint: 466CF2D8B60BC3057AA9453ED0622462E99D6AD1
 From       : file:///usr/share/distribution-gpg-keys/fedora/RPM-GPG-KEY-fedora-41-primary
The key was successfully imported.
[  1/156] Verify package files          100% | 758.0   B/s | 154.0   B |  00m00s
[  2/156] Prepare transaction           100% |   1.8 KiB/s | 154.0   B |  00m00s
[  3/156] Installing libgcc-0:14.2.1-7. 100% | 133.1 MiB/s | 272.5 KiB |  00m00s
[  4/156] Installing publicsuffix-list- 100% |  67.6 MiB/s |  69.2 KiB |  00m00s
[  5/156] Installing libssh-config-0:0. 100% |   0.0   B/s | 816.0   B |  00m00s
[  6/156] Installing fedora-release-ide 100% | 890.6 KiB/s | 912.0   B |  00m00s
[  7/156] Installing fedora-gpg-keys-0: 100% |  18.7 MiB/s | 172.2 KiB |  00m00s
[  8/156] Installing fedora-repos-0:41- 100% |   0.0   B/s |   5.7 KiB |  00m00s
[  9/156] Installing fedora-release-com 100% |  11.7 MiB/s |  24.0 KiB |  00m00s
[ 10/156] Installing fedora-release-0:4 100% |   0.0   B/s | 124.0   B |  00m00s
[ 11/156] Installing setup-0:2.15.0-8.f 100% |  47.3 MiB/s | 726.5 KiB |  00m00s
>>> [RPM] /etc/hosts created as /etc/hosts.rpmnew                               
[ 12/156] Installing filesystem-0:3.18- 100% |   1.6 MiB/s | 212.5 KiB |  00m00s
[ 13/156] Installing basesystem-0:11-21 100% |   0.0   B/s | 124.0   B |  00m00s
[ 14/156] Installing qt6-srpm-macros-0: 100% |   0.0   B/s | 732.0   B |  00m00s
[ 15/156] Installing pkgconf-m4-0:2.3.0 100% |   0.0   B/s |  14.8 KiB |  00m00s
[ 16/156] Installing pcre2-syntax-0:10. 100% | 124.1 MiB/s | 254.1 KiB |  00m00s
[ 17/156] Installing ncurses-base-0:6.5 100% |  38.2 MiB/s | 351.7 KiB |  00m00s
[ 18/156] Installing glibc-minimal-lang 100% |   0.0   B/s | 124.0   B |  00m00s
[ 19/156] Installing ncurses-libs-0:6.5 100% | 137.0 MiB/s | 981.8 KiB |  00m00s
[ 20/156] Installing glibc-0:2.40-25.fc 100% | 196.7 MiB/s |   6.7 MiB |  00m00s
[ 21/156] Installing bash-0:5.2.32-1.fc 100% | 281.7 MiB/s |   8.2 MiB |  00m00s
[ 22/156] Installing glibc-common-0:2.4 100% | 131.4 MiB/s |   1.1 MiB |  00m00s
[ 23/156] Installing glibc-gconv-extra- 100% | 151.7 MiB/s |   8.0 MiB |  00m00s
[ 24/156] Installing zlib-ng-compat-0:2 100% | 139.4 MiB/s | 142.7 KiB |  00m00s
[ 25/156] Installing bzip2-libs-0:1.0.8 100% |  79.9 MiB/s |  81.8 KiB |  00m00s
[ 26/156] Installing xz-libs-1:5.8.1-2. 100% | 106.9 MiB/s | 219.0 KiB |  00m00s
[ 27/156] Installing readline-0:8.2-10. 100% | 161.2 MiB/s | 495.3 KiB |  00m00s
[ 28/156] Installing popt-0:1.19-7.fc41 100% |  35.0 MiB/s | 143.5 KiB |  00m00s
[ 29/156] Installing libuuid-0:2.40.4-1 100% |  40.0 MiB/s |  41.0 KiB |  00m00s
[ 30/156] Installing libblkid-0:2.40.4- 100% | 252.1 MiB/s | 258.2 KiB |  00m00s
[ 31/156] Installing libattr-0:2.5.2-4. 100% |  28.8 MiB/s |  29.5 KiB |  00m00s
[ 32/156] Installing libacl-0:2.3.2-2.f 100% |  39.8 MiB/s |  40.7 KiB |  00m00s
[ 33/156] Installing gmp-1:6.3.0-2.fc41 100% | 264.9 MiB/s | 813.7 KiB |  00m00s
[ 34/156] Installing libxcrypt-0:4.4.38 100% | 142.2 MiB/s | 291.2 KiB |  00m00s
[ 35/156] Installing libzstd-0:1.5.7-1. 100% | 262.1 MiB/s | 805.1 KiB |  00m00s
[ 36/156] Installing elfutils-libelf-0: 100% | 292.6 MiB/s |   1.2 MiB |  00m00s
[ 37/156] Installing libstdc++-0:14.2.1 100% | 245.4 MiB/s |   2.7 MiB |  00m00s
[ 38/156] Installing libeconf-0:0.6.2-3 100% |  58.3 MiB/s |  59.7 KiB |  00m00s
[ 39/156] Installing gdbm-libs-1:1.23-7 100% | 120.7 MiB/s | 123.6 KiB |  00m00s
[ 40/156] Installing dwz-0:0.15-8.fc41. 100% | 146.6 MiB/s | 300.3 KiB |  00m00s
[ 41/156] Installing mpfr-0:4.2.1-5.fc4 100% | 203.5 MiB/s | 833.7 KiB |  00m00s
[ 42/156] Installing gawk-0:5.3.0-4.fc4 100% | 173.2 MiB/s |   1.7 MiB |  00m00s
[ 43/156] Installing unzip-0:6.0-64.fc4 100% | 127.0 MiB/s | 390.3 KiB |  00m00s
[ 44/156] Installing file-libs-0:5.45-7 100% | 522.8 MiB/s |   9.9 MiB |  00m00s
[ 45/156] Installing file-0:5.45-7.fc41 100% |   5.4 MiB/s | 105.0 KiB |  00m00s
[ 46/156] Installing crypto-policies-0: 100% |  14.5 MiB/s | 163.7 KiB |  00m00s
[ 47/156] Installing pcre2-0:10.44-1.fc 100% | 213.2 MiB/s | 654.9 KiB |  00m00s
[ 48/156] Installing grep-0:3.11-9.fc41 100% | 111.5 MiB/s |   1.0 MiB |  00m00s
[ 49/156] Installing xz-1:5.8.1-2.fc41. 100% | 111.3 MiB/s |   1.3 MiB |  00m00s
[ 50/156] Installing libcap-ng-0:0.8.5- 100% |  69.4 MiB/s |  71.0 KiB |  00m00s
[ 51/156] Installing audit-libs-0:4.0.3 100% | 172.6 MiB/s | 353.4 KiB |  00m00s
[ 52/156] Installing pam-libs-0:1.6.1-7 100% |  69.0 MiB/s | 141.3 KiB |  00m00s
[ 53/156] Installing libcap-0:2.70-4.fc 100% |  73.3 MiB/s | 225.2 KiB |  00m00s
[ 54/156] Installing systemd-libs-0:256 100% | 253.7 MiB/s |   2.0 MiB |  00m00s
[ 55/156] Installing libsepol-0:3.7-2.f 100% | 266.5 MiB/s | 818.8 KiB |  00m00s
[ 56/156] Installing libselinux-0:3.7-5 100% |  89.0 MiB/s | 182.3 KiB |  00m00s
[ 57/156] Installing sed-0:4.9-3.fc41.x 100% | 121.3 MiB/s | 869.7 KiB |  00m00s
[ 58/156] Installing findutils-1:4.10.0 100% | 185.8 MiB/s |   1.9 MiB |  00m00s
[ 59/156] Installing libmount-0:2.40.4- 100% | 170.8 MiB/s | 349.8 KiB |  00m00s
[ 60/156] Installing libsmartcols-0:2.4 100% | 173.2 MiB/s | 177.4 KiB |  00m00s
[ 61/156] Installing lua-libs-0:5.4.7-3 100% | 139.7 MiB/s | 286.2 KiB |  00m00s
[ 62/156] Installing lz4-libs-0:1.10.0- 100% | 143.1 MiB/s | 146.6 KiB |  00m00s
[ 63/156] Installing libcom_err-0:1.47. 100% |  66.7 MiB/s |  68.3 KiB |  00m00s
[ 64/156] Installing alternatives-0:1.3 100% |  64.8 MiB/s |  66.4 KiB |  00m00s
[ 65/156] Installing libffi-0:3.4.6-3.f 100% |  85.7 MiB/s |  87.8 KiB |  00m00s
[ 66/156] Installing libtasn1-0:4.20.0- 100% |  89.0 MiB/s | 182.2 KiB |  00m00s
[ 67/156] Installing p11-kit-0:0.25.5-3 100% | 147.2 MiB/s |   2.2 MiB |  00m00s
[ 68/156] Installing libunistring-0:1.1 100% | 288.5 MiB/s |   1.7 MiB |  00m00s
[ 69/156] Installing libidn2-0:2.3.8-1. 100% | 109.9 MiB/s | 562.8 KiB |  00m00s
[ 70/156] Installing libpsl-0:0.21.5-4. 100% |  79.7 MiB/s |  81.7 KiB |  00m00s
[ 71/156] Installing p11-kit-trust-0:0. 100% |  19.2 MiB/s | 393.1 KiB |  00m00s
[ 72/156] Installing zstd-0:1.5.7-1.fc4 100% | 213.8 MiB/s |   1.7 MiB |  00m00s
[ 73/156] Installing util-linux-core-0: 100% | 122.9 MiB/s |   1.5 MiB |  00m00s
[ 74/156] Installing tar-2:1.35-4.fc41. 100% | 227.6 MiB/s |   3.0 MiB |  00m00s
[ 75/156] Installing libsemanage-0:3.7- 100% |  96.1 MiB/s | 295.2 KiB |  00m00s
[ 76/156] Installing shadow-utils-2:4.1 100% |  73.1 MiB/s |   4.2 MiB |  00m00s
[ 77/156] Installing libutempter-0:1.2. 100% |  29.2 MiB/s |  59.7 KiB |  00m00s
[ 78/156] Installing zip-0:3.0-41.fc41. 100% | 172.6 MiB/s | 707.1 KiB |  00m00s
[ 79/156] Installing gdbm-1:1.23-7.fc41 100% |  91.0 MiB/s | 465.8 KiB |  00m00s
[ 80/156] Installing cyrus-sasl-lib-0:2 100% | 230.6 MiB/s |   2.3 MiB |  00m00s
[ 81/156] Installing libfdisk-0:2.40.4- 100% | 174.5 MiB/s | 357.4 KiB |  00m00s
[ 82/156] Installing libxml2-0:2.12.10- 100% | 215.1 MiB/s |   1.7 MiB |  00m00s
[ 83/156] Installing bzip2-0:1.0.8-19.f 100% |  48.9 MiB/s | 100.2 KiB |  00m00s
[ 84/156] Installing sqlite-libs-0:3.46 100% | 249.4 MiB/s |   1.5 MiB |  00m00s
[ 85/156] Installing add-determinism-0: 100% | 294.5 MiB/s |   2.4 MiB |  00m00s
[ 86/156] Installing build-reproducibil 100% |   0.0   B/s |   1.0 KiB |  00m00s
[ 87/156] Installing ed-0:1.20.2-2.fc41 100% |  72.8 MiB/s | 149.2 KiB |  00m00s
[ 88/156] Installing patch-0:2.7.6-25.f 100% | 131.0 MiB/s | 268.2 KiB |  00m00s
[ 89/156] Installing elfutils-default-y 100% | 120.2 KiB/s |   2.0 KiB |  00m00s
[ 90/156] Installing elfutils-libs-0:0. 100% | 168.1 MiB/s | 688.5 KiB |  00m00s
[ 91/156] Installing cpio-0:2.15-2.fc41 100% | 137.5 MiB/s |   1.1 MiB |  00m00s
[ 92/156] Installing diffutils-0:3.10-8 100% | 176.7 MiB/s |   1.6 MiB |  00m00s
[ 93/156] Installing json-c-0:0.17-4.fc 100% |  81.7 MiB/s |  83.6 KiB |  00m00s
[ 94/156] Installing libgomp-0:14.2.1-7 100% | 251.7 MiB/s | 515.6 KiB |  00m00s
[ 95/156] Installing jansson-0:2.13.1-1 100% |  87.6 MiB/s |  89.7 KiB |  00m00s
[ 96/156] Installing libpkgconf-0:2.3.0 100% |  77.5 MiB/s |  79.3 KiB |  00m00s
[ 97/156] Installing pkgconf-0:2.3.0-1. 100% |  44.5 MiB/s |  91.1 KiB |  00m00s
[ 98/156] Installing pkgconf-pkg-config 100% |   1.7 MiB/s |   1.8 KiB |  00m00s
[ 99/156] Installing keyutils-libs-0:1. 100% |  54.5 MiB/s |  55.8 KiB |  00m00s
[100/156] Installing libverto-0:0.3.2-9 100% |  30.5 MiB/s |  31.3 KiB |  00m00s
[101/156] Installing xxhash-libs-0:0.8. 100% |  87.8 MiB/s |  89.9 KiB |  00m00s
[102/156] Installing libbrotli-0:1.1.0- 100% | 205.0 MiB/s | 839.9 KiB |  00m00s
[103/156] Installing libnghttp2-0:1.62. 100% | 171.2 MiB/s | 175.3 KiB |  00m00s
[104/156] Installing libtool-ltdl-0:2.4 100% |  65.7 MiB/s |  67.3 KiB |  00m00s
[105/156] Installing rust-srpm-macros-0 100% |   0.0   B/s |   5.6 KiB |  00m00s
[106/156] Installing qt5-srpm-macros-0: 100% |   0.0   B/s | 776.0   B |  00m00s
[107/156] Installing perl-srpm-macros-0 100% |   0.0   B/s |   1.1 KiB |  00m00s
[108/156] Installing package-notes-srpm 100% |   2.0 MiB/s |   2.0 KiB |  00m00s
[109/156] Installing openblas-srpm-macr 100% |   0.0   B/s | 392.0   B |  00m00s
[110/156] Installing ocaml-srpm-macros- 100% |   0.0   B/s |   2.2 KiB |  00m00s
[111/156] Installing kernel-srpm-macros 100% |   0.0   B/s |   2.3 KiB |  00m00s
[112/156] Installing gnat-srpm-macros-0 100% |   0.0   B/s |   1.3 KiB |  00m00s
[113/156] Installing ghc-srpm-macros-0: 100% |   0.0   B/s |   1.0 KiB |  00m00s
[114/156] Installing fpc-srpm-macros-0: 100% |   0.0   B/s | 420.0   B |  00m00s
[115/156] Installing ansible-srpm-macro 100% |  35.4 MiB/s |  36.2 KiB |  00m00s
[116/156] Installing coreutils-common-0 100% | 248.7 MiB/s |  11.2 MiB |  00m00s
[117/156] Installing openssl-libs-1:3.2 100% | 313.2 MiB/s |   7.8 MiB |  00m00s
[118/156] Installing coreutils-0:9.5-11 100% | 129.7 MiB/s |   5.7 MiB |  00m00s
[119/156] Installing ca-certificates-0: 100% |   2.4 MiB/s |   2.4 MiB |  00m01s
[120/156] Installing krb5-libs-0:1.21.3 100% | 178.4 MiB/s |   2.3 MiB |  00m00s
[121/156] Installing libarchive-0:3.7.4 100% | 181.4 MiB/s | 928.6 KiB |  00m00s
[122/156] Installing libtirpc-0:1.3.6-1 100% |  97.4 MiB/s | 199.4 KiB |  00m00s
[123/156] Installing gzip-0:1.13-2.fc41 100% |  96.3 MiB/s | 394.6 KiB |  00m00s
[124/156] Installing authselect-libs-0: 100% |  81.8 MiB/s | 837.2 KiB |  00m00s
[125/156] Installing cracklib-0:2.9.11- 100% |  34.9 MiB/s | 250.3 KiB |  00m00s
[126/156] Installing libpwquality-0:1.4 100% |  46.7 MiB/s | 430.1 KiB |  00m00s
[127/156] Installing libnsl2-0:2.0.1-2. 100% |  28.8 MiB/s |  59.1 KiB |  00m00s
[128/156] Installing pam-0:1.6.1-7.fc41 100% |  75.1 MiB/s |   1.9 MiB |  00m00s
[129/156] Installing libssh-0:0.10.6-8. 100% | 167.8 MiB/s | 515.4 KiB |  00m00s
[130/156] Installing rpm-sequoia-0:1.7. 100% | 268.7 MiB/s |   2.4 MiB |  00m00s
[131/156] Installing rpm-libs-0:4.20.1- 100% | 178.6 MiB/s | 731.5 KiB |  00m00s
[132/156] Installing rpm-build-libs-0:4 100% | 103.3 MiB/s | 211.5 KiB |  00m00s
[133/156] Installing libevent-0:2.1.12- 100% | 175.7 MiB/s | 899.5 KiB |  00m00s
[134/156] Installing openldap-0:2.6.9-1 100% | 126.8 MiB/s | 649.1 KiB |  00m00s
[135/156] Installing libcurl-0:8.9.1-3. 100% | 197.8 MiB/s | 810.4 KiB |  00m00s
[136/156] Installing elfutils-debuginfo 100% |  42.2 MiB/s |  86.5 KiB |  00m00s
[137/156] Installing elfutils-0:0.193-2 100% | 247.4 MiB/s |   3.0 MiB |  00m00s
[138/156] Installing binutils-0:2.43.1- 100% | 265.9 MiB/s |  27.4 MiB |  00m00s
[139/156] Installing gdb-minimal-0:16.3 100% | 308.4 MiB/s |  13.3 MiB |  00m00s
[140/156] Installing debugedit-0:5.1-6. 100% |  66.3 MiB/s | 203.6 KiB |  00m00s
[141/156] Installing curl-0:8.9.1-3.fc4 100% |  35.3 MiB/s | 796.0 KiB |  00m00s
[142/156] Installing rpm-0:4.20.1-1.fc4 100% |  86.7 MiB/s |   2.5 MiB |  00m00s
[143/156] Installing lua-srpm-macros-0: 100% |   0.0   B/s |   1.9 KiB |  00m00s
[144/156] Installing zig-srpm-macros-0: 100% |   0.0   B/s |   1.7 KiB |  00m00s
[145/156] Installing efi-srpm-macros-0: 100% |  20.1 MiB/s |  41.2 KiB |  00m00s
[146/156] Installing python-srpm-macros 100% |  50.9 MiB/s |  52.2 KiB |  00m00s
[147/156] Installing fonts-srpm-macros- 100% |  55.7 MiB/s |  57.0 KiB |  00m00s
[148/156] Installing forge-srpm-macros- 100% |  39.3 MiB/s |  40.3 KiB |  00m00s
[149/156] Installing go-srpm-macros-0:3 100% |  60.5 MiB/s |  62.0 KiB |  00m00s
[150/156] Installing redhat-rpm-config- 100% |  46.4 MiB/s | 190.2 KiB |  00m00s
[151/156] Installing rpm-build-0:4.20.1 100% |  39.5 MiB/s | 202.3 KiB |  00m00s
[152/156] Installing pyproject-srpm-mac 100% |   1.2 MiB/s |   2.5 KiB |  00m00s
[153/156] Installing util-linux-0:2.40. 100% |  80.5 MiB/s |   3.7 MiB |  00m00s
[154/156] Installing authselect-0:1.5.0 100% |  39.5 MiB/s | 161.9 KiB |  00m00s
[155/156] Installing which-0:2.21-42.fc 100% |  80.5 MiB/s |  82.4 KiB |  00m00s
[156/156] Installing info-0:7.1.1-1.fc4 100% | 275.0 KiB/s | 362.2 KiB |  00m01s
Complete!
Finish: installing minimal buildroot with dnf5
Start: creating root cache
Finish: creating root cache
Finish: chroot init
INFO: Installed packages:
INFO: add-determinism-0.3.6-3.fc41.x86_64
alternatives-1.31-1.fc41.x86_64
ansible-srpm-macros-1-16.fc41.noarch
audit-libs-4.0.3-1.fc41.x86_64
authselect-1.5.0-8.fc41.x86_64
authselect-libs-1.5.0-8.fc41.x86_64
basesystem-11-21.fc41.noarch
bash-5.2.32-1.fc41.x86_64
binutils-2.43.1-5.fc41.x86_64
build-reproducibility-srpm-macros-0.3.6-3.fc41.noarch
bzip2-1.0.8-19.fc41.x86_64
bzip2-libs-1.0.8-19.fc41.x86_64
ca-certificates-2024.2.69_v8.0.401-1.0.fc41.noarch
coreutils-9.5-11.fc41.x86_64
coreutils-common-9.5-11.fc41.x86_64
cpio-2.15-2.fc41.x86_64
cracklib-2.9.11-6.fc41.x86_64
crypto-policies-20250124-1.git4d262e7.fc41.noarch
curl-8.9.1-3.fc41.x86_64
cyrus-sasl-lib-2.1.28-27.fc41.x86_64
debugedit-5.1-6.fc41.x86_64
diffutils-3.10-8.fc41.x86_64
dwz-0.15-8.fc41.x86_64
ed-1.20.2-2.fc41.x86_64
efi-srpm-macros-5-13.fc41.noarch
elfutils-0.193-2.fc41.x86_64
elfutils-debuginfod-client-0.193-2.fc41.x86_64
elfutils-default-yama-scope-0.193-2.fc41.noarch
elfutils-libelf-0.193-2.fc41.x86_64
elfutils-libs-0.193-2.fc41.x86_64
fedora-gpg-keys-41-1.noarch
fedora-release-41-32.noarch
fedora-release-common-41-32.noarch
fedora-release-identity-basic-41-32.noarch
fedora-repos-41-1.noarch
file-5.45-7.fc41.x86_64
file-libs-5.45-7.fc41.x86_64
filesystem-3.18-23.fc41.x86_64
findutils-4.10.0-4.fc41.x86_64
fonts-srpm-macros-2.0.5-17.fc41.noarch
forge-srpm-macros-0.4.0-1.fc41.noarch
fpc-srpm-macros-1.3-13.fc41.noarch
gawk-5.3.0-4.fc41.x86_64
gdb-minimal-16.3-1.fc41.x86_64
gdbm-1.23-7.fc41.x86_64
gdbm-libs-1.23-7.fc41.x86_64
ghc-srpm-macros-1.9.1-2.fc41.noarch
glibc-2.40-25.fc41.x86_64
glibc-common-2.40-25.fc41.x86_64
glibc-gconv-extra-2.40-25.fc41.x86_64
glibc-minimal-langpack-2.40-25.fc41.x86_64
gmp-6.3.0-2.fc41.x86_64
gnat-srpm-macros-6-6.fc41.noarch
go-srpm-macros-3.6.0-5.fc41.noarch
gpg-pubkey-e99d6ad1-64d2612c
grep-3.11-9.fc41.x86_64
gzip-1.13-2.fc41.x86_64
info-7.1.1-1.fc41.x86_64
jansson-2.13.1-10.fc41.x86_64
json-c-0.17-4.fc41.x86_64
kernel-srpm-macros-1.0-24.fc41.noarch
keyutils-libs-1.6.3-4.fc41.x86_64
krb5-libs-1.21.3-4.fc41.x86_64
libacl-2.3.2-2.fc41.x86_64
libarchive-3.7.4-4.fc41.x86_64
libattr-2.5.2-4.fc41.x86_64
libblkid-2.40.4-1.fc41.x86_64
libbrotli-1.1.0-5.fc41.x86_64
libcap-2.70-4.fc41.x86_64
libcap-ng-0.8.5-3.fc41.x86_64
libcom_err-1.47.1-6.fc41.x86_64
libcurl-8.9.1-3.fc41.x86_64
libeconf-0.6.2-3.fc41.x86_64
libevent-2.1.12-14.fc41.x86_64
libfdisk-2.40.4-1.fc41.x86_64
libffi-3.4.6-3.fc41.x86_64
libgcc-14.2.1-7.fc41.x86_64
libgomp-14.2.1-7.fc41.x86_64
libidn2-2.3.8-1.fc41.x86_64
libmount-2.40.4-1.fc41.x86_64
libnghttp2-1.62.1-3.fc41.x86_64
libnsl2-2.0.1-2.fc41.x86_64
libpkgconf-2.3.0-1.fc41.x86_64
libpsl-0.21.5-4.fc41.x86_64
libpwquality-1.4.5-11.fc41.x86_64
libselinux-3.7-5.fc41.x86_64
libsemanage-3.7-2.fc41.x86_64
libsepol-3.7-2.fc41.x86_64
libsmartcols-2.40.4-1.fc41.x86_64
libssh-0.10.6-8.fc41.x86_64
libssh-config-0.10.6-8.fc41.noarch
libstdc++-14.2.1-7.fc41.x86_64
libtasn1-4.20.0-1.fc41.x86_64
libtirpc-1.3.6-1.rc3.fc41.x86_64
libtool-ltdl-2.4.7-12.fc41.x86_64
libunistring-1.1-8.fc41.x86_64
libutempter-1.2.1-15.fc41.x86_64
libuuid-2.40.4-1.fc41.x86_64
libverto-0.3.2-9.fc41.x86_64
libxcrypt-4.4.38-7.fc41.x86_64
libxml2-2.12.10-1.fc41.x86_64
libzstd-1.5.7-1.fc41.x86_64
lua-libs-5.4.7-3.fc41.x86_64
lua-srpm-macros-1-14.fc41.noarch
lz4-libs-1.10.0-1.fc41.x86_64
mpfr-4.2.1-5.fc41.x86_64
ncurses-base-6.5-2.20240629.fc41.noarch
ncurses-libs-6.5-2.20240629.fc41.x86_64
ocaml-srpm-macros-10-3.fc41.noarch
openblas-srpm-macros-2-18.fc41.noarch
openldap-2.6.9-1.fc41.x86_64
openssl-libs-3.2.4-1.fc41.x86_64
p11-kit-0.25.5-3.fc41.x86_64
p11-kit-trust-0.25.5-3.fc41.x86_64
package-notes-srpm-macros-0.5-12.fc41.noarch
pam-1.6.1-7.fc41.x86_64
pam-libs-1.6.1-7.fc41.x86_64
patch-2.7.6-25.fc41.x86_64
pcre2-10.44-1.fc41.1.x86_64
pcre2-syntax-10.44-1.fc41.1.noarch
perl-srpm-macros-1-56.fc41.noarch
pkgconf-2.3.0-1.fc41.x86_64
pkgconf-m4-2.3.0-1.fc41.noarch
pkgconf-pkg-config-2.3.0-1.fc41.x86_64
popt-1.19-7.fc41.x86_64
publicsuffix-list-dafsa-20250116-1.fc41.noarch
pyproject-srpm-macros-1.18.1-1.fc41.noarch
python-srpm-macros-3.13-3.fc41.noarch
qt5-srpm-macros-5.15.15-1.fc41.noarch
qt6-srpm-macros-6.8.2-1.fc41.noarch
readline-8.2-10.fc41.x86_64
redhat-rpm-config-294-1.fc41.noarch
rpm-4.20.1-1.fc41.x86_64
rpm-build-4.20.1-1.fc41.x86_64
rpm-build-libs-4.20.1-1.fc41.x86_64
rpm-libs-4.20.1-1.fc41.x86_64
rpm-sequoia-1.7.0-5.fc41.x86_64
rust-srpm-macros-26.3-3.fc41.noarch
sed-4.9-3.fc41.x86_64
setup-2.15.0-8.fc41.noarch
shadow-utils-4.15.1-12.fc41.x86_64
sqlite-libs-3.46.1-3.fc41.x86_64
systemd-libs-256.12-1.fc41.x86_64
tar-1.35-4.fc41.x86_64
unzip-6.0-64.fc41.x86_64
util-linux-2.40.4-1.fc41.x86_64
util-linux-core-2.40.4-1.fc41.x86_64
which-2.21-42.fc41.x86_64
xxhash-libs-0.8.3-1.fc41.x86_64
xz-5.8.1-2.fc41.x86_64
xz-libs-5.8.1-2.fc41.x86_64
zig-srpm-macros-1-3.fc41.noarch
zip-3.0-41.fc41.x86_64
zlib-ng-compat-2.2.3-2.fc41.x86_64
zstd-1.5.7-1.fc41.x86_64
Start: buildsrpm
Start: rpmbuild -bs
Building target platforms: x86_64
Building for target x86_64
warning: %source_date_epoch_from_changelog is set, but %changelog has no entries to take a date from
Wrote: /builddir/build/SRPMS/R-CRAN-mlpack-4.6.2-1.fc41.copr9074818.src.rpm

RPM build warnings:
    %source_date_epoch_from_changelog is set, but %changelog has no entries to take a date from
Finish: rpmbuild -bs
INFO: chroot_scan: 1 files copied to /var/lib/copr-rpmbuild/results/chroot_scan
INFO: /var/lib/mock/fedora-41-x86_64-1747965636.766226/root/var/log/dnf5.log
INFO: chroot_scan: creating tarball /var/lib/copr-rpmbuild/results/chroot_scan.tar.gz
/bin/tar: Removing leading `/' from member names
Finish: buildsrpm
INFO: Done(/var/lib/copr-rpmbuild/workspace/workdir-ab7reb7l/R-CRAN-mlpack/R-CRAN-mlpack.spec) Config(child) 0 minutes 22 seconds
INFO: Results and/or logs in: /var/lib/copr-rpmbuild/results
INFO: Cleaning up build root ('cleanup_on_success=True')
Start: clean chroot
INFO: unmounting tmpfs.
Finish: clean chroot
INFO: Start(/var/lib/copr-rpmbuild/results/R-CRAN-mlpack-4.6.2-1.fc41.copr9074818.src.rpm)  Config(fedora-41-x86_64)
Start: chroot init
INFO: mounting tmpfs at /var/lib/mock/fedora-41-x86_64-1747965636.766226/root.
INFO: calling preinit hooks
INFO: enabled root cache
Start: unpacking root cache
Finish: unpacking root cache
INFO: enabled package manager cache
Start: cleaning package manager metadata
Finish: cleaning package manager metadata
INFO: enabled HW Info plugin
INFO: Buildroot is handled by package management from host and used with --installroot:
  rpm-4.20.1-1.fc41.x86_64
  rpm-sequoia-1.7.0-2.fc41.x86_64
  python3-dnf-4.23.0-1.fc41.noarch
  python3-dnf-plugins-core-4.10.1-1.fc41.noarch
  dnf5-5.2.13.1-1.fc41.x86_64
  dnf5-plugins-5.2.13.1-1.fc41.x86_64
Finish: chroot init
Start: build phase for R-CRAN-mlpack-4.6.2-1.fc41.copr9074818.src.rpm
Start: build setup for R-CRAN-mlpack-4.6.2-1.fc41.copr9074818.src.rpm
Building target platforms: x86_64
Building for target x86_64
warning: %source_date_epoch_from_changelog is set, but %changelog has no entries to take a date from
Wrote: /builddir/build/SRPMS/R-CRAN-mlpack-4.6.2-1.fc41.copr9074818.src.rpm

RPM build warnings:
    %source_date_epoch_from_changelog is set, but %changelog has no entries to take a date from
Updating and loading repositories:
 updates                                100% | 813.2 KiB/s |  30.1 KiB |  00m00s
 fedora                                 100% |   1.1 MiB/s |  30.7 KiB |  00m00s
 Copr repository                        100% |  49.6 KiB/s |   1.5 KiB |  00m00s
 Copr repository                        100% |  49.9 MiB/s |  13.0 MiB |  00m00s
Repositories loaded.
Package                      Arch   Version                          Repository      Size
Installing:
 R-CRAN-Rcpp                 x86_64 1.0.14-1.fc41.copr8507898        copr_base    8.4 MiB
 R-CRAN-RcppArmadillo        x86_64 14.4.3.1-1.fc41.copr9071290      copr_base    6.1 MiB
 R-CRAN-RcppEnsmallen        x86_64 0.2.22.1.1-1.fc41.copr8340004    copr_base    1.7 MiB
 R-devel                     x86_64 4.4.3-1.fc41                     updates      0.0   B
Installing dependencies:
 R-core                      x86_64 4.4.3-1.fc41                     updates    102.9 MiB
 R-core-devel                x86_64 4.4.3-1.fc41                     updates    396.1 KiB
 R-java                      x86_64 4.4.3-1.fc41                     updates      0.0   B
 R-java-devel                x86_64 4.4.3-1.fc41                     updates      0.0   B
 R-littler                   x86_64 0.3.19-5.fc41                    fedora     158.1 KiB
 R-rpm-macros                noarch 1.2.1-11.fc41                    fedora       5.6 KiB
 abattis-cantarell-vf-fonts  noarch 0.301-13.fc41                    fedora     192.7 KiB
 alsa-lib                    x86_64 1.2.14-2.fc41                    updates      1.4 MiB
 annobin-docs                noarch 12.69-1.fc41                     fedora      97.7 KiB
 annobin-plugin-gcc          x86_64 12.69-1.fc41                     fedora     985.0 KiB
 avahi-libs                  x86_64 0.8-29.fc41                      fedora     166.3 KiB
 bzip2-devel                 x86_64 1.0.8-19.fc41                    fedora     309.8 KiB
 cairo                       x86_64 1.18.2-2.fc41                    updates      1.7 MiB
 cmake-filesystem            x86_64 3.30.8-1.fc41                    updates      0.0   B
 cpp                         x86_64 14.2.1-7.fc41                    updates     34.5 MiB
 cups-filesystem             noarch 1:2.4.12-2.fc41                  updates      0.0   B
 cups-libs                   x86_64 1:2.4.12-2.fc41                  updates    622.9 KiB
 dbus-libs                   x86_64 1:1.14.10-4.fc41                 fedora     368.9 KiB
 default-fonts-core-sans     noarch 4.1-2.fc41                       fedora      11.9 KiB
 desktop-file-utils          x86_64 0.27-2.fc41                      fedora     230.4 KiB
 emacs-filesystem            noarch 1:30.0-3.fc41                    fedora       0.0   B
 flexiblas                   x86_64 3.4.5-1.fc41                     updates     50.4 KiB
 flexiblas-devel             x86_64 3.4.5-1.fc41                     updates      4.9 MiB
 flexiblas-netlib            x86_64 3.4.5-1.fc41                     updates     10.9 MiB
 flexiblas-netlib64          x86_64 3.4.5-1.fc41                     updates     10.9 MiB
 flexiblas-openblas-openmp   x86_64 3.4.5-1.fc41                     updates     43.3 KiB
 flexiblas-openblas-openmp64 x86_64 3.4.5-1.fc41                     updates     43.3 KiB
 fontconfig                  x86_64 2.15.0-8.fc41                    fedora     791.9 KiB
 fonts-filesystem            noarch 1:2.0.5-17.fc41                  fedora       0.0   B
 freetype                    x86_64 2.13.3-1.fc41                    fedora     850.5 KiB
 fribidi                     x86_64 1.0.15-2.fc41                    fedora     368.4 KiB
 gcc                         x86_64 14.2.1-7.fc41                    updates    103.4 MiB
 gcc-c++                     x86_64 14.2.1-7.fc41                    updates     37.7 MiB
 gcc-gfortran                x86_64 14.2.1-7.fc41                    updates     36.8 MiB
 gcc-plugin-annobin          x86_64 14.2.1-7.fc41                    updates     59.6 KiB
 glib2                       x86_64 2.82.5-1.fc41                    updates     14.7 MiB
 glibc-devel                 x86_64 2.40-25.fc41                     updates      2.3 MiB
 gnutls                      x86_64 3.8.9-2.fc41                     updates      3.6 MiB
 google-noto-fonts-common    noarch 20240701-2.fc41                  fedora      17.5 KiB
 google-noto-sans-vf-fonts   noarch 20240701-2.fc41                  fedora       1.2 MiB
 graphite2                   x86_64 1.3.14-16.fc41                   fedora     192.0 KiB
 harfbuzz                    x86_64 9.0.0-3.fc41                     fedora       2.6 MiB
 java-21-openjdk             x86_64 1:21.0.7.0.6-1.fc41              updates      1.0 MiB
 java-21-openjdk-devel       x86_64 1:21.0.7.0.6-1.fc41              updates     11.2 MiB
 java-21-openjdk-headless    x86_64 1:21.0.7.0.6-1.fc41              updates    202.0 MiB
 javapackages-filesystem     noarch 6.2.0-14.fc41                    fedora       1.9 KiB
 jbigkit-libs                x86_64 2.1-30.fc41                      fedora     117.6 KiB
 kernel-headers              x86_64 6.14.3-200.fc41                  updates      6.5 MiB
 less                        x86_64 668-1.fc41                       updates    406.3 KiB
 libICE                      x86_64 1.1.2-1.fc41                     updates    196.2 KiB
 libRmath                    x86_64 4.4.3-1.fc41                     updates    250.8 KiB
 libRmath-devel              x86_64 4.4.3-1.fc41                     updates     17.4 KiB
 libSM                       x86_64 1.2.5-1.fc41                     updates     99.6 KiB
 libX11                      x86_64 1.8.11-1.fc41                    updates      1.3 MiB
 libX11-common               noarch 1.8.11-1.fc41                    updates      1.2 MiB
 libX11-devel                x86_64 1.8.11-1.fc41                    updates      1.0 MiB
 libX11-xcb                  x86_64 1.8.11-1.fc41                    updates     15.0 KiB
 libXau                      x86_64 1.0.11-7.fc41                    fedora      66.9 KiB
 libXau-devel                x86_64 1.0.11-7.fc41                    fedora       6.4 KiB
 libXcomposite               x86_64 0.4.6-4.fc41                     fedora      44.5 KiB
 libXext                     x86_64 1.3.6-2.fc41                     fedora      90.1 KiB
 libXft                      x86_64 2.3.8-7.fc41                     fedora     164.5 KiB
 libXi                       x86_64 1.8.2-1.fc41                     fedora      76.7 KiB
 libXmu                      x86_64 1.2.1-2.fc41                     fedora     191.5 KiB
 libXrender                  x86_64 0.9.12-1.fc41                    updates     48.8 KiB
 libXt                       x86_64 1.3.1-1.fc41                     updates    429.9 KiB
 libXtst                     x86_64 1.2.5-1.fc41                     fedora      33.6 KiB
 libdatrie                   x86_64 0.2.13-10.fc41                   fedora      57.9 KiB
 libdeflate                  x86_64 1.23-1.fc41                      updates    117.2 KiB
 libdeflate-devel            x86_64 1.23-1.fc41                      updates     25.9 KiB
 libfontenc                  x86_64 1.1.8-2.fc41                     fedora      67.0 KiB
 libgfortran                 x86_64 14.2.1-7.fc41                    updates      3.0 MiB
 libicu                      x86_64 74.2-2.fc41                      fedora      34.9 MiB
 libicu-devel                x86_64 74.2-2.fc41                      fedora       5.6 MiB
 libjpeg-turbo               x86_64 3.0.2-3.fc41                     fedora     776.9 KiB
 liblerc                     x86_64 4.0.0-8.fc41                     updates    607.5 KiB
 libmpc                      x86_64 1.3.1-6.fc41                     fedora     164.7 KiB
 libpng                      x86_64 2:1.6.40-4.fc41                  fedora     245.8 KiB
 libquadmath                 x86_64 14.2.1-7.fc41                    updates    323.5 KiB
 libquadmath-devel           x86_64 14.2.1-7.fc41                    updates     21.9 KiB
 libstdc++-devel             x86_64 14.2.1-7.fc41                    updates     15.4 MiB
 libthai                     x86_64 0.1.29-9.fc41                    fedora     783.5 KiB
 libtiff                     x86_64 4.6.0-6.fc41                     fedora     606.0 KiB
 libtirpc-devel              x86_64 1.3.6-1.rc3.fc41                 updates    251.6 KiB
 libwebp                     x86_64 1.5.0-1.fc41                     updates    814.4 KiB
 libxcb                      x86_64 1.17.0-3.fc41                    fedora       1.2 MiB
 libxcb-devel                x86_64 1.17.0-3.fc41                    fedora       2.7 MiB
 libxcrypt-devel             x86_64 4.4.38-7.fc41                    updates     30.8 KiB
 lksctp-tools                x86_64 1.0.20-1.fc41                    updates    267.0 KiB
 make                        x86_64 1:4.4.1-8.fc41                   fedora       1.8 MiB
 mkfontscale                 x86_64 1.2.3-1.fc41                     fedora      49.2 KiB
 nettle                      x86_64 3.10-3.fc41                      fedora     793.0 KiB
 nspr                        x86_64 4.36.0-6.fc41                    updates    320.4 KiB
 nss                         x86_64 3.110.0-2.fc41                   updates      1.9 MiB
 nss-softokn                 x86_64 3.110.0-2.fc41                   updates      1.9 MiB
 nss-softokn-freebl          x86_64 3.110.0-2.fc41                   updates    845.2 KiB
 nss-sysinit                 x86_64 3.110.0-2.fc41                   updates     22.2 KiB
 nss-util                    x86_64 3.110.0-2.fc41                   updates    205.1 KiB
 openblas                    x86_64 0.3.26-5.fc41                    fedora      96.0 KiB
 openblas-openmp             x86_64 0.3.26-5.fc41                    fedora      39.4 MiB
 openblas-openmp64           x86_64 0.3.26-5.fc41                    fedora      39.5 MiB
 pango                       x86_64 1.56.3-1.fc41                    updates      1.0 MiB
 pcre2-devel                 x86_64 10.44-1.fc41.1                   fedora       2.0 MiB
 pcre2-utf16                 x86_64 10.44-1.fc41.1                   fedora     590.1 KiB
 pcre2-utf32                 x86_64 10.44-1.fc41.1                   fedora     562.0 KiB
 pixman                      x86_64 0.44.2-1.fc41                    updates    664.5 KiB
 tcl                         x86_64 1:8.6.14-5.fc41                  updates      4.2 MiB
 tk                          x86_64 1:8.6.14-2.fc41                  fedora       3.6 MiB
 tre                         x86_64 0.8.0-45.20140228gitc2f5d13.fc41 fedora      75.9 KiB
 tre-common                  noarch 0.8.0-45.20140228gitc2f5d13.fc41 fedora      81.0 KiB
 tre-devel                   x86_64 0.8.0-45.20140228gitc2f5d13.fc41 fedora      10.7 KiB
 ttmkfdir                    x86_64 3.0.9-71.fc41                    fedora     122.7 KiB
 tzdata-java                 noarch 2025b-1.fc41                     updates    100.1 KiB
 xdg-utils                   noarch 1.2.1-2.fc41                     fedora     346.3 KiB
 xml-common                  noarch 0.6.3-65.fc41                    fedora      78.4 KiB
 xorg-x11-fonts-Type1        noarch 7.5-39.fc41                      fedora     863.3 KiB
 xorg-x11-proto-devel        noarch 2024.1-3.fc41                    fedora       1.7 MiB
 xz-devel                    x86_64 1:5.8.1-2.fc41                   updates    258.8 KiB
 zlib-ng-compat-devel        x86_64 2.2.3-2.fc41                     updates    107.0 KiB

Transaction Summary:
 Installing:       123 packages

Total size of inbound packages is 256 MiB. Need to download 256 MiB.
After this operation, 789 MiB extra will be used (install 789 MiB, remove 0 B).
[  1/123] R-CRAN-Rcpp-0:1.0.14-1.fc41.c 100% |  23.9 MiB/s |   2.0 MiB |  00m00s
[  2/123] R-CRAN-RcppArmadillo-0:14.4.3 100% |  10.4 MiB/s | 927.2 KiB |  00m00s
[  3/123] R-CRAN-RcppEnsmallen-0:0.2.22 100% |   2.4 MiB/s | 282.8 KiB |  00m00s
[  4/123] R-devel-0:4.4.3-1.fc41.x86_64 100% | 201.3 KiB/s |   8.9 KiB |  00m00s
[  5/123] R-java-devel-0:4.4.3-1.fc41.x 100% | 318.7 KiB/s |   8.9 KiB |  00m00s
[  6/123] R-core-devel-0:4.4.3-1.fc41.x 100% |   1.9 MiB/s |  94.4 KiB |  00m00s
[  7/123] R-littler-0:0.3.19-5.fc41.x86 100% | 653.9 KiB/s |  71.3 KiB |  00m00s
[  8/123] R-rpm-macros-0:1.2.1-11.fc41. 100% | 176.1 KiB/s |  11.3 KiB |  00m00s
[  9/123] libRmath-devel-0:4.4.3-1.fc41 100% | 370.7 KiB/s |  14.5 KiB |  00m00s
[ 10/123] R-java-0:4.4.3-1.fc41.x86_64  100% | 214.6 KiB/s |   9.4 KiB |  00m00s
[ 11/123] libRmath-0:4.4.3-1.fc41.x86_6 100% |   2.1 MiB/s | 122.5 KiB |  00m00s
[ 12/123] make-1:4.4.1-8.fc41.x86_64    100% |   4.6 MiB/s | 586.1 KiB |  00m00s
[ 13/123] libXmu-0:1.2.1-2.fc41.x86_64  100% |   1.0 MiB/s |  78.0 KiB |  00m00s
[ 14/123] libjpeg-turbo-0:3.0.2-3.fc41. 100% |   1.1 MiB/s | 227.3 KiB |  00m00s
[ 15/123] libpng-2:1.6.40-4.fc41.x86_64 100% |   2.3 MiB/s | 120.3 KiB |  00m00s
[ 16/123] libtiff-0:4.6.0-6.fc41.x86_64 100% |   2.8 MiB/s | 212.0 KiB |  00m00s
[ 17/123] R-core-0:4.4.3-1.fc41.x86_64  100% |  54.3 MiB/s |  67.1 MiB |  00m01s
[ 18/123] tre-0:0.8.0-45.20140228gitc2f 100% | 553.1 KiB/s |  43.7 KiB |  00m00s
[ 19/123] xdg-utils-0:1.2.1-2.fc41.noar 100% |   3.0 MiB/s |  79.3 KiB |  00m00s
[ 20/123] libXext-0:1.3.6-2.fc41.x86_64 100% |   2.1 MiB/s |  39.1 KiB |  00m00s
[ 21/123] jbigkit-libs-0:2.1-30.fc41.x8 100% |   2.6 MiB/s |  53.3 KiB |  00m00s
[ 22/123] tk-1:8.6.14-2.fc41.x86_64     100% |   1.9 MiB/s |   1.6 MiB |  00m01s
[ 23/123] fontconfig-0:2.15.0-8.fc41.x8 100% |   5.0 MiB/s | 269.9 KiB |  00m00s
[ 24/123] tre-common-0:0.8.0-45.2014022 100% |   2.4 MiB/s |  31.3 KiB |  00m00s
[ 25/123] libXft-0:2.3.8-7.fc41.x86_64  100% |   2.8 MiB/s |  72.3 KiB |  00m00s
[ 26/123] default-fonts-core-sans-0:4.1 100% |   2.3 MiB/s |  31.1 KiB |  00m00s
[ 27/123] desktop-file-utils-0:0.27-2.f 100% |   2.6 MiB/s |  68.9 KiB |  00m00s
[ 28/123] fonts-filesystem-1:2.0.5-17.f 100% | 652.6 KiB/s |   8.5 KiB |  00m00s
[ 29/123] xml-common-0:0.6.3-65.fc41.no 100% |   2.3 MiB/s |  31.2 KiB |  00m00s
[ 30/123] emacs-filesystem-1:30.0-3.fc4 100% | 255.1 KiB/s |   7.1 KiB |  00m00s
[ 31/123] freetype-0:2.13.3-1.fc41.x86_ 100% |   5.1 MiB/s | 409.2 KiB |  00m00s
[ 32/123] abattis-cantarell-vf-fonts-0: 100% |   2.3 MiB/s | 120.2 KiB |  00m00s
[ 33/123] google-noto-sans-vf-fonts-0:2 100% |   5.0 MiB/s | 594.1 KiB |  00m00s
[ 34/123] google-noto-fonts-common-0:20 100% |   1.3 MiB/s |  18.0 KiB |  00m00s
[ 35/123] graphite2-0:1.3.14-16.fc41.x8 100% |   3.4 MiB/s |  95.1 KiB |  00m00s
[ 36/123] flexiblas-netlib-0:3.4.5-1.fc 100% |  38.5 MiB/s |   3.3 MiB |  00m00s
[ 37/123] harfbuzz-0:9.0.0-3.fc41.x86_6 100% |   4.6 MiB/s |   1.0 MiB |  00m00s
[ 38/123] flexiblas-0:3.4.5-1.fc41.x86_ 100% | 504.7 KiB/s |  26.2 KiB |  00m00s
[ 39/123] flexiblas-openblas-openmp-0:3 100% | 321.1 KiB/s |  17.3 KiB |  00m00s
[ 40/123] libX11-0:1.8.11-1.fc41.x86_64 100% |  45.4 MiB/s | 650.3 KiB |  00m00s
[ 41/123] libX11-common-0:1.8.11-1.fc41 100% |  19.1 MiB/s | 176.1 KiB |  00m00s
[ 42/123] libxcb-0:1.17.0-3.fc41.x86_64 100% |   1.5 MiB/s | 240.7 KiB |  00m00s
[ 43/123] libXau-0:1.0.11-7.fc41.x86_64 100% |   1.7 MiB/s |  31.9 KiB |  00m00s
[ 44/123] tcl-1:8.6.14-5.fc41.x86_64    100% |  21.3 MiB/s |   1.1 MiB |  00m00s
[ 45/123] libgfortran-0:14.2.1-7.fc41.x 100% |  31.0 MiB/s | 921.7 KiB |  00m00s
[ 46/123] openblas-0:0.3.26-5.fc41.x86_ 100% |   2.1 MiB/s |  38.7 KiB |  00m00s
[ 47/123] liblerc-0:4.0.0-8.fc41.x86_64 100% |   3.6 MiB/s | 209.0 KiB |  00m00s
[ 48/123] libwebp-0:1.5.0-1.fc41.x86_64 100% |  14.4 MiB/s | 279.6 KiB |  00m00s
[ 49/123] libXt-0:1.3.1-1.fc41.x86_64   100% |  15.8 MiB/s | 177.5 KiB |  00m00s
[ 50/123] libXrender-0:0.9.12-1.fc41.x8 100% |   2.3 MiB/s |  26.1 KiB |  00m00s
[ 51/123] glib2-0:2.82.5-1.fc41.x86_64  100% |  64.5 MiB/s |   3.0 MiB |  00m00s
[ 52/123] libICE-0:1.1.2-1.fc41.x86_64  100% |   9.2 MiB/s |  75.3 KiB |  00m00s
[ 53/123] libSM-0:1.2.5-1.fc41.x86_64   100% |   5.2 MiB/s |  42.4 KiB |  00m00s
[ 54/123] gnutls-0:3.8.9-2.fc41.x86_64  100% |  59.2 MiB/s |   1.2 MiB |  00m00s
[ 55/123] nettle-0:3.10-3.fc41.x86_64   100% |   4.3 MiB/s | 428.5 KiB |  00m00s
[ 56/123] libquadmath-0:14.2.1-7.fc41.x 100% |   2.7 MiB/s | 204.5 KiB |  00m00s
[ 57/123] java-21-openjdk-devel-1:21.0. 100% |  24.4 MiB/s |   5.0 MiB |  00m00s
[ 58/123] java-21-openjdk-1:21.0.7.0.6- 100% |   2.5 MiB/s | 416.9 KiB |  00m00s
[ 59/123] java-21-openjdk-headless-1:21 100% |  47.8 MiB/s |  47.2 MiB |  00m01s
[ 60/123] libXcomposite-0:0.4.6-4.fc41. 100% | 542.2 KiB/s |  24.4 KiB |  00m00s
[ 61/123] libXi-0:1.8.2-1.fc41.x86_64   100% |   1.0 MiB/s |  39.9 KiB |  00m00s
[ 62/123] libXtst-0:1.2.5-1.fc41.x86_64 100% | 758.8 KiB/s |  20.5 KiB |  00m00s
[ 63/123] xorg-x11-fonts-Type1-0:7.5-39 100% | 646.7 KiB/s | 507.0 KiB |  00m01s
[ 64/123] javapackages-filesystem-0:6.2 100% | 532.9 KiB/s |  12.3 KiB |  00m00s
[ 65/123] mkfontscale-0:1.2.3-1.fc41.x8 100% |   1.0 MiB/s |  31.9 KiB |  00m00s
[ 66/123] ttmkfdir-0:3.0.9-71.fc41.x86_ 100% |   1.4 MiB/s |  56.1 KiB |  00m00s
[ 67/123] libfontenc-0:1.1.8-2.fc41.x86 100% | 775.7 KiB/s |  32.6 KiB |  00m00s
[ 68/123] flexiblas-devel-0:3.4.5-1.fc4 100% |   2.0 MiB/s | 122.9 KiB |  00m00s
[ 69/123] libicu-0:74.2-2.fc41.x86_64   100% |   2.1 MiB/s |  10.4 MiB |  00m05s
[ 70/123] flexiblas-netlib64-0:3.4.5-1. 100% |  14.6 MiB/s |   3.1 MiB |  00m00s
[ 71/123] flexiblas-openblas-openmp64-0 100% | 183.5 KiB/s |  17.4 KiB |  00m00s
[ 72/123] gcc-c++-0:14.2.1-7.fc41.x86_6 100% |  19.2 MiB/s |  13.7 MiB |  00m01s
[ 73/123] gcc-0:14.2.1-7.fc41.x86_64    100% |  29.3 MiB/s |  36.1 MiB |  00m01s
[ 74/123] libmpc-0:1.3.1-6.fc41.x86_64  100% | 987.7 KiB/s |  71.1 KiB |  00m00s
[ 75/123] cpp-0:14.2.1-7.fc41.x86_64    100% |  41.8 MiB/s |  11.5 MiB |  00m00s
[ 76/123] gcc-gfortran-0:14.2.1-7.fc41. 100% |  33.0 MiB/s |  13.0 MiB |  00m00s
[ 77/123] libX11-devel-0:1.8.11-1.fc41. 100% |  11.7 MiB/s |   1.0 MiB |  00m00s
[ 78/123] openblas-openmp-0:0.3.26-5.fc 100% | 820.4 KiB/s |   5.1 MiB |  00m06s
[ 79/123] xorg-x11-proto-devel-0:2024.1 100% |   1.6 MiB/s | 300.3 KiB |  00m00s
[ 80/123] libdeflate-0:1.23-1.fc41.x86_ 100% |   1.9 MiB/s |  66.7 KiB |  00m00s
[ 81/123] libdeflate-devel-0:1.23-1.fc4 100% | 442.2 KiB/s |  18.1 KiB |  00m00s
[ 82/123] libtirpc-devel-0:1.3.6-1.rc3. 100% |   7.7 MiB/s | 125.8 KiB |  00m00s
[ 83/123] xz-devel-1:5.8.1-2.fc41.x86_6 100% |   1.8 MiB/s |  67.0 KiB |  00m00s
[ 84/123] zlib-ng-compat-devel-0:2.2.3- 100% |   1.0 MiB/s |  38.3 KiB |  00m00s
[ 85/123] bzip2-devel-0:1.0.8-19.fc41.x 100% | 872.2 KiB/s | 213.7 KiB |  00m00s
[ 86/123] libicu-devel-0:74.2-2.fc41.x8 100% |   1.0 MiB/s | 928.2 KiB |  00m01s
[ 87/123] pcre2-utf16-0:10.44-1.fc41.1. 100% | 732.9 KiB/s | 222.8 KiB |  00m00s
[ 88/123] pcre2-utf32-0:10.44-1.fc41.1. 100% | 267.4 KiB/s | 210.4 KiB |  00m01s
[ 89/123] tre-devel-0:0.8.0-45.20140228 100% | 187.9 KiB/s |  12.0 KiB |  00m00s
[ 90/123] cairo-0:1.18.2-2.fc41.x86_64  100% |   9.9 MiB/s | 690.9 KiB |  00m00s
[ 91/123] less-0:668-1.fc41.x86_64      100% |  16.8 MiB/s | 189.4 KiB |  00m00s
[ 92/123] pango-0:1.56.3-1.fc41.x86_64  100% |  28.5 MiB/s | 350.3 KiB |  00m00s
[ 93/123] fribidi-0:1.0.15-2.fc41.x86_6 100% | 329.2 KiB/s |  92.2 KiB |  00m00s
[ 94/123] libthai-0:0.1.29-9.fc41.x86_6 100% | 966.9 KiB/s | 211.8 KiB |  00m00s
[ 95/123] libdatrie-0:0.2.13-10.fc41.x8 100% | 332.1 KiB/s |  32.2 KiB |  00m00s
[ 96/123] cmake-filesystem-0:3.30.8-1.f 100% |   1.5 MiB/s |  16.8 KiB |  00m00s
[ 97/123] libX11-xcb-0:1.8.11-1.fc41.x8 100% |   1.3 MiB/s |  11.8 KiB |  00m00s
[ 98/123] pcre2-devel-0:10.44-1.fc41.1. 100% | 205.1 KiB/s | 521.5 KiB |  00m03s
[ 99/123] alsa-lib-0:1.2.14-2.fc41.x86_ 100% |  25.4 MiB/s | 519.2 KiB |  00m00s
[100/123] cups-libs-1:2.4.12-2.fc41.x86 100% |  18.3 MiB/s | 261.6 KiB |  00m00s
[101/123] cups-filesystem-1:2.4.12-2.fc 100% |   1.3 MiB/s |  13.5 KiB |  00m00s
[102/123] avahi-libs-0:0.8-29.fc41.x86_ 100% | 387.9 KiB/s |  66.7 KiB |  00m00s
[103/123] dbus-libs-1:1.14.10-4.fc41.x8 100% | 820.5 KiB/s | 155.1 KiB |  00m00s
[104/123] lksctp-tools-0:1.0.20-1.fc41. 100% |   7.9 MiB/s |  97.1 KiB |  00m00s
[105/123] nss-0:3.110.0-2.fc41.x86_64   100% |  13.0 MiB/s | 705.7 KiB |  00m00s
[106/123] nss-softokn-0:3.110.0-2.fc41. 100% |  26.8 MiB/s | 412.3 KiB |  00m00s
[107/123] nss-softokn-freebl-0:3.110.0- 100% |  28.9 MiB/s | 326.0 KiB |  00m00s
[108/123] nss-sysinit-0:3.110.0-2.fc41. 100% |   2.4 MiB/s |  19.3 KiB |  00m00s
[109/123] tzdata-java-0:2025b-1.fc41.no 100% |   5.7 MiB/s |  46.3 KiB |  00m00s
[110/123] libquadmath-devel-0:14.2.1-7. 100% |   1.6 MiB/s |  48.7 KiB |  00m00s
[111/123] libstdc++-devel-0:14.2.1-7.fc 100% |  28.5 MiB/s |   2.8 MiB |  00m00s
[112/123] glibc-devel-0:2.40-25.fc41.x8 100% |  35.2 MiB/s | 612.5 KiB |  00m00s
[113/123] pixman-0:0.44.2-1.fc41.x86_64 100% |  20.2 MiB/s | 269.1 KiB |  00m00s
[114/123] libXau-devel-0:1.0.11-7.fc41. 100% | 394.9 KiB/s |  13.8 KiB |  00m00s
[115/123] openblas-openmp64-0:0.3.26-5. 100% | 769.6 KiB/s |   4.9 MiB |  00m07s
[116/123] nspr-0:4.36.0-6.fc41.x86_64   100% |  11.2 MiB/s | 137.1 KiB |  00m00s
[117/123] nss-util-0:3.110.0-2.fc41.x86 100% |   9.3 MiB/s |  86.2 KiB |  00m00s
[118/123] libxcb-devel-0:1.17.0-3.fc41. 100% |   1.8 MiB/s |   1.4 MiB |  00m01s
[119/123] libxcrypt-devel-0:4.4.38-7.fc 100% | 652.8 KiB/s |  29.4 KiB |  00m00s
[120/123] gcc-plugin-annobin-0:14.2.1-7 100% |   1.3 MiB/s |  58.0 KiB |  00m00s
[121/123] kernel-headers-0:6.14.3-200.f 100% |   9.1 MiB/s |   1.7 MiB |  00m00s
[122/123] annobin-docs-0:12.69-1.fc41.n 100% | 759.1 KiB/s |  91.8 KiB |  00m00s
[123/123] annobin-plugin-gcc-0:12.69-1. 100% |   1.4 MiB/s | 971.0 KiB |  00m01s
--------------------------------------------------------------------------------
[123/123] Total                         100% |  20.1 MiB/s | 255.7 MiB |  00m13s
Running transaction
[  1/125] Verify package files          100% | 149.0   B/s | 123.0   B |  00m01s
>>> Running pre-transaction scriptlet: java-21-openjdk-headless-1:21.0.7.0.6-1.f
>>> Finished pre-transaction scriptlet: java-21-openjdk-headless-1:21.0.7.0.6-1.
>>> [RPM] /var/lib/mock/fedora-41-x86_64-1747965636.766226/root/var/cache/dnf/co
[  2/125] Prepare transaction           100% | 564.0   B/s | 123.0   B |  00m00s
[  3/125] Installing nspr-0:4.36.0-6.fc 100% | 104.9 MiB/s | 322.2 KiB |  00m00s
[  4/125] Installing libgfortran-0:14.2 100% | 302.3 MiB/s |   3.0 MiB |  00m00s
[  5/125] Installing nss-util-0:3.110.0 100% | 100.6 MiB/s | 206.1 KiB |  00m00s
[  6/125] Installing libmpc-0:1.3.1-6.f 100% |  81.1 MiB/s | 166.2 KiB |  00m00s
[  7/125] Installing libquadmath-0:14.2 100% | 158.6 MiB/s | 324.7 KiB |  00m00s
[  8/125] Installing fonts-filesystem-1 100% |   0.0   B/s | 788.0   B |  00m00s
[  9/125] Installing libpng-2:1.6.40-4. 100% | 120.6 MiB/s | 247.1 KiB |  00m00s
[ 10/125] Installing cmake-filesystem-0 100% |   2.4 MiB/s |   7.3 KiB |  00m00s
[ 11/125] Installing libdeflate-0:1.23- 100% |  57.9 MiB/s | 118.6 KiB |  00m00s
[ 12/125] Installing xorg-x11-proto-dev 100% | 137.1 MiB/s |   1.8 MiB |  00m00s
[ 13/125] Installing libICE-0:1.1.2-1.f 100% |  96.5 MiB/s | 197.6 KiB |  00m00s
[ 14/125] Installing openblas-0:0.3.26- 100% |  95.5 MiB/s |  97.8 KiB |  00m00s
[ 15/125] Installing tcl-1:8.6.14-5.fc4 100% | 184.2 MiB/s |   4.2 MiB |  00m00s
[ 16/125] Installing libXau-0:1.0.11-7. 100% |  66.8 MiB/s |  68.4 KiB |  00m00s
[ 17/125] Installing libxcb-0:1.17.0-3. 100% | 132.0 MiB/s |   1.2 MiB |  00m00s
[ 18/125] Installing libjpeg-turbo-0:3. 100% | 253.5 MiB/s | 778.7 KiB |  00m00s
[ 19/125] Installing libicu-0:74.2-2.fc 100% | 312.1 MiB/s |  35.0 MiB |  00m00s
[ 20/125] Installing libRmath-0:4.4.3-1 100% | 122.9 MiB/s | 251.8 KiB |  00m00s
[ 21/125] Installing make-1:4.4.1-8.fc4 100% | 180.0 MiB/s |   1.8 MiB |  00m00s
[ 22/125] Installing libRmath-devel-0:4 100% |   8.7 MiB/s |  17.7 KiB |  00m00s
[ 23/125] Installing libicu-devel-0:74. 100% | 156.7 MiB/s |   5.6 MiB |  00m00s
[ 24/125] Installing libXau-devel-0:1.0 100% |   1.3 MiB/s |   8.2 KiB |  00m00s
[ 25/125] Installing libxcb-devel-0:1.1 100% |  32.3 MiB/s |   3.1 MiB |  00m00s
[ 26/125] Installing openblas-openmp-0: 100% | 468.7 MiB/s |  39.4 MiB |  00m00s
[ 27/125] Installing flexiblas-0:3.4.5- 100% |  50.4 MiB/s |  51.6 KiB |  00m00s
[ 28/125] Installing flexiblas-openblas 100% |  43.1 MiB/s |  44.1 KiB |  00m00s
[ 29/125] Installing flexiblas-netlib-0 100% | 319.3 MiB/s |  10.9 MiB |  00m00s
[ 30/125] Installing openblas-openmp64- 100% | 476.3 MiB/s |  39.5 MiB |  00m00s
[ 31/125] Installing flexiblas-netlib64 100% | 331.4 MiB/s |  10.9 MiB |  00m00s
[ 32/125] Installing flexiblas-openblas 100% |  43.1 MiB/s |  44.2 KiB |  00m00s
[ 33/125] Installing flexiblas-devel-0: 100% | 446.7 MiB/s |   4.9 MiB |  00m00s
[ 34/125] Installing libSM-0:1.2.5-1.fc 100% |  98.6 MiB/s | 100.9 KiB |  00m00s
[ 35/125] Installing libdeflate-devel-0 100% |  26.6 MiB/s |  27.3 KiB |  00m00s
[ 36/125] Installing zlib-ng-compat-dev 100% | 106.0 MiB/s | 108.5 KiB |  00m00s
[ 37/125] Installing abattis-cantarell- 100% |  94.9 MiB/s | 194.4 KiB |  00m00s
[ 38/125] Installing cpp-0:14.2.1-7.fc4 100% | 311.3 MiB/s |  34.6 MiB |  00m00s
[ 39/125] Installing nss-softokn-freebl 100% | 165.5 MiB/s | 847.4 KiB |  00m00s
[ 40/125] Installing nss-softokn-0:3.11 100% | 269.6 MiB/s |   1.9 MiB |  00m00s
[ 41/125] Installing nss-sysinit-0:3.11 100% |  22.7 MiB/s |  23.3 KiB |  00m00s
[ 42/125] Installing nss-0:3.110.0-2.fc 100% |  85.7 MiB/s |   1.9 MiB |  00m00s
[ 43/125] Installing annobin-docs-0:12. 100% |  24.1 MiB/s |  98.8 KiB |  00m00s
[ 44/125] Installing kernel-headers-0:6 100% | 107.9 MiB/s |   6.7 MiB |  00m00s
[ 45/125] Installing libxcrypt-devel-0: 100% |  10.8 MiB/s |  33.1 KiB |  00m00s
[ 46/125] Installing glibc-devel-0:2.40 100% |  83.0 MiB/s |   2.3 MiB |  00m00s
[ 47/125] Installing gcc-0:14.2.1-7.fc4 100% | 318.2 MiB/s | 103.4 MiB |  00m00s
[ 48/125] Installing libquadmath-devel- 100% |  11.4 MiB/s |  23.4 KiB |  00m00s
[ 49/125] Installing gcc-gfortran-0:14. 100% | 301.6 MiB/s |  36.8 MiB |  00m00s
[ 50/125] Installing pixman-0:0.44.2-1. 100% | 130.0 MiB/s | 665.6 KiB |  00m00s
[ 51/125] Installing libstdc++-devel-0: 100% | 222.5 MiB/s |  15.6 MiB |  00m00s
[ 52/125] Installing gcc-c++-0:14.2.1-7 100% | 316.5 MiB/s |  37.7 MiB |  00m00s
[ 53/125] Installing tzdata-java-0:2025 100% |  98.1 MiB/s | 100.5 KiB |  00m00s
[ 54/125] Installing lksctp-tools-0:1.0 100% |  88.4 MiB/s | 271.5 KiB |  00m00s
[ 55/125] Installing dbus-libs-1:1.14.1 100% | 180.7 MiB/s | 370.0 KiB |  00m00s
[ 56/125] Installing avahi-libs-0:0.8-2 100% |  82.5 MiB/s | 168.9 KiB |  00m00s
[ 57/125] Installing cups-filesystem-1: 100% |   1.7 MiB/s |   1.8 KiB |  00m00s
[ 58/125] Installing alsa-lib-0:1.2.14- 100% | 141.1 MiB/s |   1.4 MiB |  00m00s
[ 59/125] Installing libX11-xcb-0:1.8.1 100% |   0.0   B/s |  15.9 KiB |  00m00s
[ 60/125] Installing libdatrie-0:0.2.13 100% |  57.7 MiB/s |  59.0 KiB |  00m00s
[ 61/125] Installing libthai-0:0.1.29-9 100% | 191.7 MiB/s | 785.3 KiB |  00m00s
[ 62/125] Installing fribidi-0:1.0.15-2 100% | 181.1 MiB/s | 370.9 KiB |  00m00s
[ 63/125] Installing less-0:668-1.fc41. 100% | 133.3 MiB/s | 409.6 KiB |  00m00s
[ 64/125] Installing pcre2-utf32-0:10.4 100% | 183.2 MiB/s | 562.8 KiB |  00m00s
[ 65/125] Installing pcre2-utf16-0:10.4 100% | 192.4 MiB/s | 590.9 KiB |  00m00s
[ 66/125] Installing pcre2-devel-0:10.4 100% | 153.5 MiB/s |   2.0 MiB |  00m00s
[ 67/125] Installing bzip2-devel-0:1.0. 100% | 303.5 MiB/s | 310.7 KiB |  00m00s
[ 68/125] Installing xz-devel-1:5.8.1-2 100% |  85.5 MiB/s | 262.6 KiB |  00m00s
[ 69/125] Installing libtirpc-devel-0:1 100% |  51.4 MiB/s | 263.1 KiB |  00m00s
[ 70/125] Installing libfontenc-0:1.1.8 100% |  66.8 MiB/s |  68.4 KiB |  00m00s
[ 71/125] Installing javapackages-files 100% |   5.2 MiB/s |   5.3 KiB |  00m00s
[ 72/125] Installing nettle-0:3.10-3.fc 100% | 194.4 MiB/s | 796.1 KiB |  00m00s
[ 73/125] Installing gnutls-0:3.8.9-2.f 100% | 239.1 MiB/s |   3.6 MiB |  00m00s
[ 74/125] Installing glib2-0:2.82.5-1.f 100% | 272.0 MiB/s |  14.7 MiB |  00m00s
[ 75/125] Installing cups-libs-1:2.4.12 100% | 152.5 MiB/s | 624.5 KiB |  00m00s
[ 76/125] Installing java-21-openjdk-he 100% | 341.3 MiB/s | 202.0 MiB |  00m01s
[ 77/125] Installing libwebp-0:1.5.0-1. 100% | 133.2 MiB/s | 818.6 KiB |  00m00s
[ 78/125] Installing liblerc-0:4.0.0-8. 100% | 148.7 MiB/s | 609.0 KiB |  00m00s
[ 79/125] Installing libX11-common-0:1. 100% |  66.0 MiB/s |   1.2 MiB |  00m00s
[ 80/125] Installing libX11-0:1.8.11-1. 100% | 256.3 MiB/s |   1.3 MiB |  00m00s
[ 81/125] Installing libXext-0:1.3.6-2. 100% |  89.2 MiB/s |  91.3 KiB |  00m00s
[ 82/125] Installing libXrender-0:0.9.1 100% |  48.8 MiB/s |  50.0 KiB |  00m00s
[ 83/125] Installing libXi-0:1.8.2-1.fc 100% |  76.0 MiB/s |  77.8 KiB |  00m00s
[ 84/125] Installing libXt-0:1.3.1-1.fc 100% | 140.3 MiB/s | 431.1 KiB |  00m00s
[ 85/125] Installing libXmu-0:1.2.1-2.f 100% |  94.5 MiB/s | 193.5 KiB |  00m00s
[ 86/125] Installing libXtst-0:1.2.5-1. 100% |  33.8 MiB/s |  34.7 KiB |  00m00s
[ 87/125] Installing libXcomposite-0:0. 100% |  15.0 MiB/s |  46.1 KiB |  00m00s
[ 88/125] Installing libX11-devel-0:1.8 100% |  33.9 MiB/s |   1.1 MiB |  00m00s
[ 89/125] Installing graphite2-0:1.3.14 100% |  94.8 MiB/s | 194.1 KiB |  00m00s
[ 90/125] Installing harfbuzz-0:9.0.0-3 100% | 240.9 MiB/s |   2.7 MiB |  00m00s
[ 91/125] Installing freetype-0:2.13.3- 100% | 166.4 MiB/s | 852.2 KiB |  00m00s
[ 92/125] Installing mkfontscale-0:1.2. 100% |  24.7 MiB/s |  50.6 KiB |  00m00s
[ 93/125] Installing ttmkfdir-0:3.0.9-7 100% |  60.4 MiB/s | 123.8 KiB |  00m00s
[ 94/125] Installing google-noto-fonts- 100% |   0.0   B/s |  18.3 KiB |  00m00s
[ 95/125] Installing google-noto-sans-v 100% | 249.8 MiB/s |   1.2 MiB |  00m00s
[ 96/125] Installing default-fonts-core 100% |   8.9 MiB/s |  18.2 KiB |  00m00s
[ 97/125] Installing emacs-filesystem-1 100% |   0.0   B/s | 544.0   B |  00m00s
[ 98/125] Installing desktop-file-utils 100% |  76.2 MiB/s | 234.2 KiB |  00m00s
[ 99/125] Installing xdg-utils-0:1.2.1- 100% |  24.4 MiB/s | 349.5 KiB |  00m00s
[100/125] Installing xml-common-0:0.6.3 100% |  26.4 MiB/s |  81.1 KiB |  00m00s
[101/125] Installing fontconfig-0:2.15. 100% | 779.9 KiB/s | 811.1 KiB |  00m01s
[102/125] Installing libXft-0:2.3.8-7.f 100% |  81.1 MiB/s | 166.0 KiB |  00m00s
[103/125] Installing cairo-0:1.18.2-2.f 100% | 192.2 MiB/s |   1.7 MiB |  00m00s
[104/125] Installing pango-0:1.56.3-1.f 100% |  52.8 MiB/s |   1.0 MiB |  00m00s
[105/125] Installing tk-1:8.6.14-2.fc41 100% | 135.5 MiB/s |   3.7 MiB |  00m00s
[106/125] Installing xorg-x11-fonts-Typ 100% |  14.6 MiB/s | 865.6 KiB |  00m00s
[107/125] Installing java-21-openjdk-1: 100% |  50.0 MiB/s |   1.1 MiB |  00m00s
[108/125] Installing java-21-openjdk-de 100% | 215.8 MiB/s |  11.2 MiB |  00m00s
[109/125] Installing tre-common-0:0.8.0 100% |  81.2 MiB/s |  83.1 KiB |  00m00s
[110/125] Installing tre-0:0.8.0-45.201 100% |  74.9 MiB/s |  76.7 KiB |  00m00s
[111/125] Installing tre-devel-0:0.8.0- 100% |  11.3 MiB/s |  11.6 KiB |  00m00s
[112/125] Installing jbigkit-libs-0:2.1 100% |  58.4 MiB/s | 119.6 KiB |  00m00s
[113/125] Installing libtiff-0:4.6.0-6. 100% |  17.5 MiB/s | 608.2 KiB |  00m00s
[114/125] Installing R-core-0:4.4.3-1.f 100% | 131.3 MiB/s | 105.1 MiB |  00m01s
[115/125] Installing R-core-devel-0:4.4 100% |  98.3 MiB/s | 402.7 KiB |  00m00s
[116/125] Installing R-littler-0:0.3.19 100% |  32.1 MiB/s | 164.4 KiB |  00m00s
[117/125] Installing R-CRAN-Rcpp-0:1.0. 100% | 133.0 MiB/s |   8.5 MiB |  00m00s
[118/125] Installing R-rpm-macros-0:1.2 100% |   6.4 MiB/s |   6.6 KiB |  00m00s
[119/125] Installing R-java-0:4.4.3-1.f 100% |   0.0   B/s | 124.0   B |  00m00s
[120/125] Installing R-java-devel-0:4.4 100% |   0.0   B/s | 124.0   B |  00m00s
[121/125] Installing R-devel-0:4.4.3-1. 100% | 121.1 KiB/s | 124.0   B |  00m00s
[122/125] Installing R-CRAN-RcppArmadil 100% | 131.9 MiB/s |   6.2 MiB |  00m00s
[123/125] Installing R-CRAN-RcppEnsmall 100% |  54.8 MiB/s |   1.8 MiB |  00m00s
[124/125] Installing gcc-plugin-annobin 100% |   1.6 MiB/s |  61.1 KiB |  00m00s
[125/125] Installing annobin-plugin-gcc 100% |   2.3 MiB/s | 986.7 KiB |  00m00s
Warning: skipped OpenPGP checks for 3 packages from repository: copr_base
Complete!
Finish: build setup for R-CRAN-mlpack-4.6.2-1.fc41.copr9074818.src.rpm
Start: rpmbuild R-CRAN-mlpack-4.6.2-1.fc41.copr9074818.src.rpm
Building target platforms: x86_64
Building for target x86_64
warning: %source_date_epoch_from_changelog is set, but %changelog has no entries to take a date from
Executing(%mkbuilddir): /bin/sh -e /var/tmp/rpm-tmp.WrBbII
Executing(%prep): /bin/sh -e /var/tmp/rpm-tmp.XAE8Gq
+ umask 022
+ cd /builddir/build/BUILD/R-CRAN-mlpack-4.6.2-build
+ cd /builddir/build/BUILD/R-CRAN-mlpack-4.6.2-build
+ rm -rf mlpack
+ /usr/bin/mkdir -p mlpack
+ cd mlpack
+ /usr/lib/rpm/rpmuncompress -x /builddir/build/SOURCES/mlpack_4.6.2.tar.gz
+ STATUS=0
+ '[' 0 -ne 0 ']'
+ /usr/bin/chmod -Rf a+rX,u+w,g-w,o-w .
+ find -type f -executable -exec grep -Iq . '{}' ';' -exec sed -i -e '$a\' '{}' ';'
+ '[' -d mlpack/src ']'
+ find mlpack/src -type f -exec sed -i s@/usr/bin/strip@/usr/bin/true@g '{}' ';'
+ '[' -d mlpack/src ']'
+ find mlpack/src/Makevars mlpack/src/Makevars.win -type f -exec sed -i s@-g0@@g '{}' ';'
+ find -type f -executable -exec sed -Ei 's@#!( )*/usr/local/bin@#!/usr/bin@g' '{}' ';'
+ RPM_EC=0
++ jobs -p
+ exit 0
Executing(%build): /bin/sh -e /var/tmp/rpm-tmp.JIG4iw
+ umask 022
+ cd /builddir/build/BUILD/R-CRAN-mlpack-4.6.2-build
+ CFLAGS='-O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer '
+ export CFLAGS
+ CXXFLAGS='-O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer '
+ export CXXFLAGS
+ FFLAGS='-O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -I/usr/lib64/gfortran/modules '
+ export FFLAGS
+ FCFLAGS='-O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -I/usr/lib64/gfortran/modules '
+ export FCFLAGS
+ VALAFLAGS=-g
+ export VALAFLAGS
+ RUSTFLAGS='-Copt-level=3 -Cdebuginfo=2 -Ccodegen-units=1 -Cstrip=none -Cforce-frame-pointers=yes -Clink-arg=-specs=/usr/lib/rpm/redhat/redhat-package-notes --cap-lints=warn'
+ export RUSTFLAGS
+ LDFLAGS='-Wl,-z,relro -Wl,--as-needed  -Wl,-z,pack-relative-relocs -Wl,-z,now -specs=/usr/lib/rpm/redhat/redhat-hardened-ld -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -Wl,--build-id=sha1 -specs=/usr/lib/rpm/redhat/redhat-package-notes '
+ export LDFLAGS
+ LT_SYS_LIBRARY_PATH=/usr/lib64:
+ export LT_SYS_LIBRARY_PATH
+ CC=gcc
+ export CC
+ CXX=g++
+ export CXX
+ cd mlpack
+ RPM_EC=0
++ jobs -p
+ exit 0
Executing(%install): /bin/sh -e /var/tmp/rpm-tmp.tPmCQV
+ umask 022
+ cd /builddir/build/BUILD/R-CRAN-mlpack-4.6.2-build
+ '[' /builddir/build/BUILD/R-CRAN-mlpack-4.6.2-build/BUILDROOT '!=' / ']'
+ rm -rf /builddir/build/BUILD/R-CRAN-mlpack-4.6.2-build/BUILDROOT
++ dirname /builddir/build/BUILD/R-CRAN-mlpack-4.6.2-build/BUILDROOT
+ mkdir -p /builddir/build/BUILD/R-CRAN-mlpack-4.6.2-build
+ mkdir /builddir/build/BUILD/R-CRAN-mlpack-4.6.2-build/BUILDROOT
+ CFLAGS='-O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer '
+ export CFLAGS
+ CXXFLAGS='-O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer '
+ export CXXFLAGS
+ FFLAGS='-O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -I/usr/lib64/gfortran/modules '
+ export FFLAGS
+ FCFLAGS='-O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer -I/usr/lib64/gfortran/modules '
+ export FCFLAGS
+ VALAFLAGS=-g
+ export VALAFLAGS
+ RUSTFLAGS='-Copt-level=3 -Cdebuginfo=2 -Ccodegen-units=1 -Cstrip=none -Cforce-frame-pointers=yes -Clink-arg=-specs=/usr/lib/rpm/redhat/redhat-package-notes --cap-lints=warn'
+ export RUSTFLAGS
+ LDFLAGS='-Wl,-z,relro -Wl,--as-needed  -Wl,-z,pack-relative-relocs -Wl,-z,now -specs=/usr/lib/rpm/redhat/redhat-hardened-ld -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -Wl,--build-id=sha1 -specs=/usr/lib/rpm/redhat/redhat-package-notes '
+ export LDFLAGS
+ LT_SYS_LIBRARY_PATH=/usr/lib64:
+ export LT_SYS_LIBRARY_PATH
+ CC=gcc
+ export CC
+ CXX=g++
+ export CXX
+ cd mlpack
+ mkdir -p /builddir/build/BUILD/R-CRAN-mlpack-4.6.2-build/BUILDROOT/usr/local/lib/R/library
+ /usr/bin/R CMD INSTALL -l /builddir/build/BUILD/R-CRAN-mlpack-4.6.2-build/BUILDROOT/usr/local/lib/R/library mlpack
* installing *source* package ‘mlpack’ ...
** package ‘mlpack’ successfully unpacked and MD5 sums checked
** using staged installation
** libs
using C++ compiler: ‘g++ (GCC) 14.2.1 20250110 (Red Hat 14.2.1-7)’
using C++17
g++ -std=gnu++17 -I"/usr/include/R" -DNDEBUG  -I'/usr/local/lib/R/library/Rcpp/include' -I'/usr/local/lib/R/library/RcppArmadillo/include' -I'/usr/local/lib/R/library/RcppEnsmallen/include' -I/usr/local/include   -I. -I../inst/include -fopenmp -fpic  -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer    -c RcppExports.cpp -o RcppExports.o
In file included from ../inst/include/mlpack/core/stb/stb.hpp:80,
                 from ../inst/include/mlpack/core.hpp:38,
                 from ../inst/include/mlpack.h:52,
                 from RcppExports.cpp:4:
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1607:14: warning: ‘int stbi_write_jpg_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1607 | STBIWDEF int stbi_write_jpg_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int quality)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1231:14: warning: ‘int stbi_write_png_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1231 | STBIWDEF int stbi_write_png_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int stride_bytes)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:787:14: warning: ‘int stbi_write_hdr_to_func(void (*)(void*, void*, int), void*, int, int, int, const float*)’ defined but not used [-Wunused-function]
  787 | STBIWDEF int stbi_write_hdr_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const float *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:611:14: warning: ‘int stbi_write_tga_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  611 | STBIWDEF int stbi_write_tga_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:512:14: warning: ‘int stbi_write_bmp_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  512 | STBIWDEF int stbi_write_bmp_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:262:15: warning: ‘void stbi_flip_vertically_on_write(int)’ defined but not used [-Wunused-function]
  262 | STBIWDEF void stbi_flip_vertically_on_write(int flag)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ../inst/include/mlpack/core/stb/stb.hpp:79:
../inst/include/mlpack/core/stb/bundled/stb_image.h:7755:13: warning: ‘int stbi_is_16_bit_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 7755 | STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *c, void *user)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7748:13: warning: ‘int stbi_is_16_bit_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 7748 | STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7741:13: warning: ‘int stbi_info_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7741 | STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7734:13: warning: ‘int stbi_info_from_memory(const stbi_uc*, int, int*, int*, int*)’ defined but not used [-Wunused-function]
 7734 | STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7712:13: warning: ‘int stbi_is_16_bit(const char*)’ defined but not used [-Wunused-function]
 7712 | STBIDEF int stbi_is_16_bit(char const *filename)
      |             ^~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7691:13: warning: ‘int stbi_info(const char*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7691 | STBIDEF int stbi_info(char const *filename, int *x, int *y, int *comp)
      |             ^~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5019:14: warning: ‘void stbi_convert_iphone_png_to_rgb_thread(int)’ defined but not used [-Wunused-function]
 5019 | STBIDEF void stbi_convert_iphone_png_to_rgb_thread(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5013:14: warning: ‘void stbi_set_unpremultiply_on_load_thread(int)’ defined but not used [-Wunused-function]
 5013 | STBIDEF void stbi_set_unpremultiply_on_load_thread(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5001:14: warning: ‘void stbi_convert_iphone_png_to_rgb(int)’ defined but not used [-Wunused-function]
 5001 | STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4996:14: warning: ‘void stbi_set_unpremultiply_on_load(int)’ defined but not used [-Wunused-function]
 4996 | STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4584:13: warning: ‘int stbi_zlib_decode_noheader_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4584 | STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4568:15: warning: ‘char* stbi_zlib_decode_noheader_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4568 | STBIDEF char *stbi_zlib_decode_noheader_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4557:13: warning: ‘int stbi_zlib_decode_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4557 | STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, char const *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4536:15: warning: ‘char* stbi_zlib_decode_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4536 | STBIDEF char *stbi_zlib_decode_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1582:16: warning: ‘void stbi_hdr_to_ldr_scale(float)’ defined but not used [-Wunused-function]
 1582 | STBIDEF void   stbi_hdr_to_ldr_scale(float scale) { stbi__h2l_scale_i = 1/scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1581:16: warning: ‘void stbi_hdr_to_ldr_gamma(float)’ defined but not used [-Wunused-function]
 1581 | STBIDEF void   stbi_hdr_to_ldr_gamma(float gamma) { stbi__h2l_gamma_i = 1/gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1576:16: warning: ‘void stbi_ldr_to_hdr_scale(float)’ defined but not used [-Wunused-function]
 1576 | STBIDEF void   stbi_ldr_to_hdr_scale(float scale) { stbi__l2h_scale = scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1575:16: warning: ‘void stbi_ldr_to_hdr_gamma(float)’ defined but not used [-Wunused-function]
 1575 | STBIDEF void   stbi_ldr_to_hdr_gamma(float gamma) { stbi__l2h_gamma = gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1559:18: warning: ‘int stbi_is_hdr_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 1559 | STBIDEF int      stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1531:18: warning: ‘int stbi_is_hdr(const char*)’ defined but not used [-Wunused-function]
 1531 | STBIDEF int      stbi_is_hdr          (char const *filename)
      |                  ^~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1517:13: warning: ‘int stbi_is_hdr_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 1517 | STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1493:16: warning: ‘float* stbi_loadf(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1493 | STBIDEF float *stbi_loadf(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1485:16: warning: ‘float* stbi_loadf_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1485 | STBIDEF float *stbi_loadf_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1478:16: warning: ‘float* stbi_loadf_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1478 | STBIDEF float *stbi_loadf_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1444:18: warning: ‘stbi_uc* stbi_load_gif_from_memory(const stbi_uc*, int, int**, int*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1444 | STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1436:18: warning: ‘stbi_uc* stbi_load_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1436 | STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1429:18: warning: ‘stbi_uc* stbi_load_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1429 | STBIDEF stbi_uc *stbi_load_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1422:18: warning: ‘stbi_us* stbi_load_16_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1422 | STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1415:18: warning: ‘stbi_us* stbi_load_16_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1415 | STBIDEF stbi_us *stbi_load_16_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1402:18: warning: ‘stbi_us* stbi_load_16(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1402 | STBIDEF stbi_us *stbi_load_16(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1126:14: warning: ‘void stbi_set_flip_vertically_on_load_thread(int)’ defined but not used [-Wunused-function]
 1126 | STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1116:14: warning: ‘void stbi_set_flip_vertically_on_load(int)’ defined but not used [-Wunused-function]
 1116 | STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
g++ -std=gnu++17 -I"/usr/include/R" -DNDEBUG  -I'/usr/local/lib/R/library/Rcpp/include' -I'/usr/local/lib/R/library/RcppArmadillo/include' -I'/usr/local/lib/R/library/RcppEnsmallen/include' -I/usr/local/include   -I. -I../inst/include -fopenmp -fpic  -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer    -c adaboost.cpp -o adaboost.o
In file included from ../inst/include/mlpack/core/stb/stb.hpp:80,
                 from ../inst/include/mlpack/core.hpp:38,
                 from ../inst/include/mlpack/methods/adaboost/adaboost_main.cpp:34,
                 from adaboost.cpp:9:
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1607:14: warning: ‘int stbi_write_jpg_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1607 | STBIWDEF int stbi_write_jpg_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int quality)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1231:14: warning: ‘int stbi_write_png_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1231 | STBIWDEF int stbi_write_png_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int stride_bytes)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:787:14: warning: ‘int stbi_write_hdr_to_func(void (*)(void*, void*, int), void*, int, int, int, const float*)’ defined but not used [-Wunused-function]
  787 | STBIWDEF int stbi_write_hdr_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const float *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:611:14: warning: ‘int stbi_write_tga_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  611 | STBIWDEF int stbi_write_tga_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:512:14: warning: ‘int stbi_write_bmp_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  512 | STBIWDEF int stbi_write_bmp_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:262:15: warning: ‘void stbi_flip_vertically_on_write(int)’ defined but not used [-Wunused-function]
  262 | STBIWDEF void stbi_flip_vertically_on_write(int flag)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ../inst/include/mlpack/core/stb/stb.hpp:79:
../inst/include/mlpack/core/stb/bundled/stb_image.h:7755:13: warning: ‘int stbi_is_16_bit_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 7755 | STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *c, void *user)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7748:13: warning: ‘int stbi_is_16_bit_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 7748 | STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7741:13: warning: ‘int stbi_info_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7741 | STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7734:13: warning: ‘int stbi_info_from_memory(const stbi_uc*, int, int*, int*, int*)’ defined but not used [-Wunused-function]
 7734 | STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7712:13: warning: ‘int stbi_is_16_bit(const char*)’ defined but not used [-Wunused-function]
 7712 | STBIDEF int stbi_is_16_bit(char const *filename)
      |             ^~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7691:13: warning: ‘int stbi_info(const char*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7691 | STBIDEF int stbi_info(char const *filename, int *x, int *y, int *comp)
      |             ^~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5019:14: warning: ‘void stbi_convert_iphone_png_to_rgb_thread(int)’ defined but not used [-Wunused-function]
 5019 | STBIDEF void stbi_convert_iphone_png_to_rgb_thread(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5013:14: warning: ‘void stbi_set_unpremultiply_on_load_thread(int)’ defined but not used [-Wunused-function]
 5013 | STBIDEF void stbi_set_unpremultiply_on_load_thread(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5001:14: warning: ‘void stbi_convert_iphone_png_to_rgb(int)’ defined but not used [-Wunused-function]
 5001 | STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4996:14: warning: ‘void stbi_set_unpremultiply_on_load(int)’ defined but not used [-Wunused-function]
 4996 | STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4584:13: warning: ‘int stbi_zlib_decode_noheader_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4584 | STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4568:15: warning: ‘char* stbi_zlib_decode_noheader_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4568 | STBIDEF char *stbi_zlib_decode_noheader_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4557:13: warning: ‘int stbi_zlib_decode_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4557 | STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, char const *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4536:15: warning: ‘char* stbi_zlib_decode_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4536 | STBIDEF char *stbi_zlib_decode_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1582:16: warning: ‘void stbi_hdr_to_ldr_scale(float)’ defined but not used [-Wunused-function]
 1582 | STBIDEF void   stbi_hdr_to_ldr_scale(float scale) { stbi__h2l_scale_i = 1/scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1581:16: warning: ‘void stbi_hdr_to_ldr_gamma(float)’ defined but not used [-Wunused-function]
 1581 | STBIDEF void   stbi_hdr_to_ldr_gamma(float gamma) { stbi__h2l_gamma_i = 1/gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1576:16: warning: ‘void stbi_ldr_to_hdr_scale(float)’ defined but not used [-Wunused-function]
 1576 | STBIDEF void   stbi_ldr_to_hdr_scale(float scale) { stbi__l2h_scale = scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1575:16: warning: ‘void stbi_ldr_to_hdr_gamma(float)’ defined but not used [-Wunused-function]
 1575 | STBIDEF void   stbi_ldr_to_hdr_gamma(float gamma) { stbi__l2h_gamma = gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1559:18: warning: ‘int stbi_is_hdr_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 1559 | STBIDEF int      stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1531:18: warning: ‘int stbi_is_hdr(const char*)’ defined but not used [-Wunused-function]
 1531 | STBIDEF int      stbi_is_hdr          (char const *filename)
      |                  ^~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1517:13: warning: ‘int stbi_is_hdr_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 1517 | STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1493:16: warning: ‘float* stbi_loadf(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1493 | STBIDEF float *stbi_loadf(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1485:16: warning: ‘float* stbi_loadf_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1485 | STBIDEF float *stbi_loadf_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1478:16: warning: ‘float* stbi_loadf_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1478 | STBIDEF float *stbi_loadf_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1444:18: warning: ‘stbi_uc* stbi_load_gif_from_memory(const stbi_uc*, int, int**, int*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1444 | STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1436:18: warning: ‘stbi_uc* stbi_load_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1436 | STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1429:18: warning: ‘stbi_uc* stbi_load_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1429 | STBIDEF stbi_uc *stbi_load_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1422:18: warning: ‘stbi_us* stbi_load_16_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1422 | STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1415:18: warning: ‘stbi_us* stbi_load_16_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1415 | STBIDEF stbi_us *stbi_load_16_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1402:18: warning: ‘stbi_us* stbi_load_16(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1402 | STBIDEF stbi_us *stbi_load_16(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1126:14: warning: ‘void stbi_set_flip_vertically_on_load_thread(int)’ defined but not used [-Wunused-function]
 1126 | STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1116:14: warning: ‘void stbi_set_flip_vertically_on_load(int)’ defined but not used [-Wunused-function]
 1116 | STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
g++ -std=gnu++17 -I"/usr/include/R" -DNDEBUG  -I'/usr/local/lib/R/library/Rcpp/include' -I'/usr/local/lib/R/library/RcppArmadillo/include' -I'/usr/local/lib/R/library/RcppEnsmallen/include' -I/usr/local/include   -I. -I../inst/include -fopenmp -fpic  -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer    -c approx_kfn.cpp -o approx_kfn.o
In file included from ../inst/include/mlpack/core/stb/stb.hpp:80,
                 from ../inst/include/mlpack/core.hpp:38,
                 from ../inst/include/mlpack/methods/approx_kfn/approx_kfn_main.cpp:12,
                 from approx_kfn.cpp:9:
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1607:14: warning: ‘int stbi_write_jpg_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1607 | STBIWDEF int stbi_write_jpg_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int quality)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1231:14: warning: ‘int stbi_write_png_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1231 | STBIWDEF int stbi_write_png_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int stride_bytes)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:787:14: warning: ‘int stbi_write_hdr_to_func(void (*)(void*, void*, int), void*, int, int, int, const float*)’ defined but not used [-Wunused-function]
  787 | STBIWDEF int stbi_write_hdr_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const float *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:611:14: warning: ‘int stbi_write_tga_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  611 | STBIWDEF int stbi_write_tga_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:512:14: warning: ‘int stbi_write_bmp_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  512 | STBIWDEF int stbi_write_bmp_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:262:15: warning: ‘void stbi_flip_vertically_on_write(int)’ defined but not used [-Wunused-function]
  262 | STBIWDEF void stbi_flip_vertically_on_write(int flag)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ../inst/include/mlpack/core/stb/stb.hpp:79:
../inst/include/mlpack/core/stb/bundled/stb_image.h:7755:13: warning: ‘int stbi_is_16_bit_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 7755 | STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *c, void *user)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7748:13: warning: ‘int stbi_is_16_bit_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 7748 | STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7741:13: warning: ‘int stbi_info_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7741 | STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7734:13: warning: ‘int stbi_info_from_memory(const stbi_uc*, int, int*, int*, int*)’ defined but not used [-Wunused-function]
 7734 | STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7712:13: warning: ‘int stbi_is_16_bit(const char*)’ defined but not used [-Wunused-function]
 7712 | STBIDEF int stbi_is_16_bit(char const *filename)
      |             ^~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7691:13: warning: ‘int stbi_info(const char*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7691 | STBIDEF int stbi_info(char const *filename, int *x, int *y, int *comp)
      |             ^~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5019:14: warning: ‘void stbi_convert_iphone_png_to_rgb_thread(int)’ defined but not used [-Wunused-function]
 5019 | STBIDEF void stbi_convert_iphone_png_to_rgb_thread(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5013:14: warning: ‘void stbi_set_unpremultiply_on_load_thread(int)’ defined but not used [-Wunused-function]
 5013 | STBIDEF void stbi_set_unpremultiply_on_load_thread(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5001:14: warning: ‘void stbi_convert_iphone_png_to_rgb(int)’ defined but not used [-Wunused-function]
 5001 | STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4996:14: warning: ‘void stbi_set_unpremultiply_on_load(int)’ defined but not used [-Wunused-function]
 4996 | STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4584:13: warning: ‘int stbi_zlib_decode_noheader_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4584 | STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4568:15: warning: ‘char* stbi_zlib_decode_noheader_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4568 | STBIDEF char *stbi_zlib_decode_noheader_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4557:13: warning: ‘int stbi_zlib_decode_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4557 | STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, char const *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4536:15: warning: ‘char* stbi_zlib_decode_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4536 | STBIDEF char *stbi_zlib_decode_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1582:16: warning: ‘void stbi_hdr_to_ldr_scale(float)’ defined but not used [-Wunused-function]
 1582 | STBIDEF void   stbi_hdr_to_ldr_scale(float scale) { stbi__h2l_scale_i = 1/scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1581:16: warning: ‘void stbi_hdr_to_ldr_gamma(float)’ defined but not used [-Wunused-function]
 1581 | STBIDEF void   stbi_hdr_to_ldr_gamma(float gamma) { stbi__h2l_gamma_i = 1/gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1576:16: warning: ‘void stbi_ldr_to_hdr_scale(float)’ defined but not used [-Wunused-function]
 1576 | STBIDEF void   stbi_ldr_to_hdr_scale(float scale) { stbi__l2h_scale = scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1575:16: warning: ‘void stbi_ldr_to_hdr_gamma(float)’ defined but not used [-Wunused-function]
 1575 | STBIDEF void   stbi_ldr_to_hdr_gamma(float gamma) { stbi__l2h_gamma = gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1559:18: warning: ‘int stbi_is_hdr_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 1559 | STBIDEF int      stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1531:18: warning: ‘int stbi_is_hdr(const char*)’ defined but not used [-Wunused-function]
 1531 | STBIDEF int      stbi_is_hdr          (char const *filename)
      |                  ^~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1517:13: warning: ‘int stbi_is_hdr_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 1517 | STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1493:16: warning: ‘float* stbi_loadf(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1493 | STBIDEF float *stbi_loadf(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1485:16: warning: ‘float* stbi_loadf_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1485 | STBIDEF float *stbi_loadf_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1478:16: warning: ‘float* stbi_loadf_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1478 | STBIDEF float *stbi_loadf_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1444:18: warning: ‘stbi_uc* stbi_load_gif_from_memory(const stbi_uc*, int, int**, int*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1444 | STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1436:18: warning: ‘stbi_uc* stbi_load_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1436 | STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1429:18: warning: ‘stbi_uc* stbi_load_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1429 | STBIDEF stbi_uc *stbi_load_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1422:18: warning: ‘stbi_us* stbi_load_16_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1422 | STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1415:18: warning: ‘stbi_us* stbi_load_16_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1415 | STBIDEF stbi_us *stbi_load_16_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1402:18: warning: ‘stbi_us* stbi_load_16(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1402 | STBIDEF stbi_us *stbi_load_16(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1126:14: warning: ‘void stbi_set_flip_vertically_on_load_thread(int)’ defined but not used [-Wunused-function]
 1126 | STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1116:14: warning: ‘void stbi_set_flip_vertically_on_load(int)’ defined but not used [-Wunused-function]
 1116 | STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
g++ -std=gnu++17 -I"/usr/include/R" -DNDEBUG  -I'/usr/local/lib/R/library/Rcpp/include' -I'/usr/local/lib/R/library/RcppArmadillo/include' -I'/usr/local/lib/R/library/RcppEnsmallen/include' -I/usr/local/include   -I. -I../inst/include -fopenmp -fpic  -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer    -c bayesian_linear_regression.cpp -o bayesian_linear_regression.o
In file included from ../inst/include/mlpack/core/stb/stb.hpp:80,
                 from ../inst/include/mlpack/core.hpp:38,
                 from ../inst/include/mlpack/methods/bayesian_linear_regression/bayesian_linear_regression_main.cpp:12,
                 from bayesian_linear_regression.cpp:9:
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1607:14: warning: ‘int stbi_write_jpg_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1607 | STBIWDEF int stbi_write_jpg_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int quality)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1231:14: warning: ‘int stbi_write_png_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1231 | STBIWDEF int stbi_write_png_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int stride_bytes)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:787:14: warning: ‘int stbi_write_hdr_to_func(void (*)(void*, void*, int), void*, int, int, int, const float*)’ defined but not used [-Wunused-function]
  787 | STBIWDEF int stbi_write_hdr_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const float *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:611:14: warning: ‘int stbi_write_tga_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  611 | STBIWDEF int stbi_write_tga_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:512:14: warning: ‘int stbi_write_bmp_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  512 | STBIWDEF int stbi_write_bmp_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:262:15: warning: ‘void stbi_flip_vertically_on_write(int)’ defined but not used [-Wunused-function]
  262 | STBIWDEF void stbi_flip_vertically_on_write(int flag)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ../inst/include/mlpack/core/stb/stb.hpp:79:
../inst/include/mlpack/core/stb/bundled/stb_image.h:7755:13: warning: ‘int stbi_is_16_bit_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 7755 | STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *c, void *user)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7748:13: warning: ‘int stbi_is_16_bit_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 7748 | STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7741:13: warning: ‘int stbi_info_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7741 | STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7734:13: warning: ‘int stbi_info_from_memory(const stbi_uc*, int, int*, int*, int*)’ defined but not used [-Wunused-function]
 7734 | STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7712:13: warning: ‘int stbi_is_16_bit(const char*)’ defined but not used [-Wunused-function]
 7712 | STBIDEF int stbi_is_16_bit(char const *filename)
      |             ^~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7691:13: warning: ‘int stbi_info(const char*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7691 | STBIDEF int stbi_info(char const *filename, int *x, int *y, int *comp)
      |             ^~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5019:14: warning: ‘void stbi_convert_iphone_png_to_rgb_thread(int)’ defined but not used [-Wunused-function]
 5019 | STBIDEF void stbi_convert_iphone_png_to_rgb_thread(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5013:14: warning: ‘void stbi_set_unpremultiply_on_load_thread(int)’ defined but not used [-Wunused-function]
 5013 | STBIDEF void stbi_set_unpremultiply_on_load_thread(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5001:14: warning: ‘void stbi_convert_iphone_png_to_rgb(int)’ defined but not used [-Wunused-function]
 5001 | STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4996:14: warning: ‘void stbi_set_unpremultiply_on_load(int)’ defined but not used [-Wunused-function]
 4996 | STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4584:13: warning: ‘int stbi_zlib_decode_noheader_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4584 | STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4568:15: warning: ‘char* stbi_zlib_decode_noheader_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4568 | STBIDEF char *stbi_zlib_decode_noheader_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4557:13: warning: ‘int stbi_zlib_decode_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4557 | STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, char const *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4536:15: warning: ‘char* stbi_zlib_decode_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4536 | STBIDEF char *stbi_zlib_decode_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1582:16: warning: ‘void stbi_hdr_to_ldr_scale(float)’ defined but not used [-Wunused-function]
 1582 | STBIDEF void   stbi_hdr_to_ldr_scale(float scale) { stbi__h2l_scale_i = 1/scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1581:16: warning: ‘void stbi_hdr_to_ldr_gamma(float)’ defined but not used [-Wunused-function]
 1581 | STBIDEF void   stbi_hdr_to_ldr_gamma(float gamma) { stbi__h2l_gamma_i = 1/gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1576:16: warning: ‘void stbi_ldr_to_hdr_scale(float)’ defined but not used [-Wunused-function]
 1576 | STBIDEF void   stbi_ldr_to_hdr_scale(float scale) { stbi__l2h_scale = scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1575:16: warning: ‘void stbi_ldr_to_hdr_gamma(float)’ defined but not used [-Wunused-function]
 1575 | STBIDEF void   stbi_ldr_to_hdr_gamma(float gamma) { stbi__l2h_gamma = gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1559:18: warning: ‘int stbi_is_hdr_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 1559 | STBIDEF int      stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1531:18: warning: ‘int stbi_is_hdr(const char*)’ defined but not used [-Wunused-function]
 1531 | STBIDEF int      stbi_is_hdr          (char const *filename)
      |                  ^~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1517:13: warning: ‘int stbi_is_hdr_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 1517 | STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1493:16: warning: ‘float* stbi_loadf(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1493 | STBIDEF float *stbi_loadf(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1485:16: warning: ‘float* stbi_loadf_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1485 | STBIDEF float *stbi_loadf_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1478:16: warning: ‘float* stbi_loadf_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1478 | STBIDEF float *stbi_loadf_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1444:18: warning: ‘stbi_uc* stbi_load_gif_from_memory(const stbi_uc*, int, int**, int*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1444 | STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1436:18: warning: ‘stbi_uc* stbi_load_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1436 | STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1429:18: warning: ‘stbi_uc* stbi_load_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1429 | STBIDEF stbi_uc *stbi_load_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1422:18: warning: ‘stbi_us* stbi_load_16_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1422 | STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1415:18: warning: ‘stbi_us* stbi_load_16_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1415 | STBIDEF stbi_us *stbi_load_16_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1402:18: warning: ‘stbi_us* stbi_load_16(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1402 | STBIDEF stbi_us *stbi_load_16(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1126:14: warning: ‘void stbi_set_flip_vertically_on_load_thread(int)’ defined but not used [-Wunused-function]
 1126 | STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1116:14: warning: ‘void stbi_set_flip_vertically_on_load(int)’ defined but not used [-Wunused-function]
 1116 | STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
g++ -std=gnu++17 -I"/usr/include/R" -DNDEBUG  -I'/usr/local/lib/R/library/Rcpp/include' -I'/usr/local/lib/R/library/RcppArmadillo/include' -I'/usr/local/lib/R/library/RcppEnsmallen/include' -I/usr/local/include   -I. -I../inst/include -fopenmp -fpic  -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer    -c cf.cpp -o cf.o
In file included from ../inst/include/mlpack/core/stb/stb.hpp:80,
                 from ../inst/include/mlpack/core.hpp:38,
                 from ../inst/include/mlpack/methods/cf/cf_main.cpp:12,
                 from cf.cpp:9:
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1607:14: warning: ‘int stbi_write_jpg_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1607 | STBIWDEF int stbi_write_jpg_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int quality)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1231:14: warning: ‘int stbi_write_png_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1231 | STBIWDEF int stbi_write_png_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int stride_bytes)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:787:14: warning: ‘int stbi_write_hdr_to_func(void (*)(void*, void*, int), void*, int, int, int, const float*)’ defined but not used [-Wunused-function]
  787 | STBIWDEF int stbi_write_hdr_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const float *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:611:14: warning: ‘int stbi_write_tga_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  611 | STBIWDEF int stbi_write_tga_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:512:14: warning: ‘int stbi_write_bmp_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  512 | STBIWDEF int stbi_write_bmp_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:262:15: warning: ‘void stbi_flip_vertically_on_write(int)’ defined but not used [-Wunused-function]
  262 | STBIWDEF void stbi_flip_vertically_on_write(int flag)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ../inst/include/mlpack/core/stb/stb.hpp:79:
../inst/include/mlpack/core/stb/bundled/stb_image.h:7755:13: warning: ‘int stbi_is_16_bit_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 7755 | STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *c, void *user)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7748:13: warning: ‘int stbi_is_16_bit_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 7748 | STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7741:13: warning: ‘int stbi_info_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7741 | STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7734:13: warning: ‘int stbi_info_from_memory(const stbi_uc*, int, int*, int*, int*)’ defined but not used [-Wunused-function]
 7734 | STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7712:13: warning: ‘int stbi_is_16_bit(const char*)’ defined but not used [-Wunused-function]
 7712 | STBIDEF int stbi_is_16_bit(char const *filename)
      |             ^~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7691:13: warning: ‘int stbi_info(const char*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7691 | STBIDEF int stbi_info(char const *filename, int *x, int *y, int *comp)
      |             ^~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5019:14: warning: ‘void stbi_convert_iphone_png_to_rgb_thread(int)’ defined but not used [-Wunused-function]
 5019 | STBIDEF void stbi_convert_iphone_png_to_rgb_thread(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5013:14: warning: ‘void stbi_set_unpremultiply_on_load_thread(int)’ defined but not used [-Wunused-function]
 5013 | STBIDEF void stbi_set_unpremultiply_on_load_thread(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5001:14: warning: ‘void stbi_convert_iphone_png_to_rgb(int)’ defined but not used [-Wunused-function]
 5001 | STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4996:14: warning: ‘void stbi_set_unpremultiply_on_load(int)’ defined but not used [-Wunused-function]
 4996 | STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4584:13: warning: ‘int stbi_zlib_decode_noheader_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4584 | STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4568:15: warning: ‘char* stbi_zlib_decode_noheader_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4568 | STBIDEF char *stbi_zlib_decode_noheader_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4557:13: warning: ‘int stbi_zlib_decode_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4557 | STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, char const *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4536:15: warning: ‘char* stbi_zlib_decode_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4536 | STBIDEF char *stbi_zlib_decode_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1582:16: warning: ‘void stbi_hdr_to_ldr_scale(float)’ defined but not used [-Wunused-function]
 1582 | STBIDEF void   stbi_hdr_to_ldr_scale(float scale) { stbi__h2l_scale_i = 1/scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1581:16: warning: ‘void stbi_hdr_to_ldr_gamma(float)’ defined but not used [-Wunused-function]
 1581 | STBIDEF void   stbi_hdr_to_ldr_gamma(float gamma) { stbi__h2l_gamma_i = 1/gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1576:16: warning: ‘void stbi_ldr_to_hdr_scale(float)’ defined but not used [-Wunused-function]
 1576 | STBIDEF void   stbi_ldr_to_hdr_scale(float scale) { stbi__l2h_scale = scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1575:16: warning: ‘void stbi_ldr_to_hdr_gamma(float)’ defined but not used [-Wunused-function]
 1575 | STBIDEF void   stbi_ldr_to_hdr_gamma(float gamma) { stbi__l2h_gamma = gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1559:18: warning: ‘int stbi_is_hdr_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 1559 | STBIDEF int      stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1531:18: warning: ‘int stbi_is_hdr(const char*)’ defined but not used [-Wunused-function]
 1531 | STBIDEF int      stbi_is_hdr          (char const *filename)
      |                  ^~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1517:13: warning: ‘int stbi_is_hdr_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 1517 | STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1493:16: warning: ‘float* stbi_loadf(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1493 | STBIDEF float *stbi_loadf(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1485:16: warning: ‘float* stbi_loadf_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1485 | STBIDEF float *stbi_loadf_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1478:16: warning: ‘float* stbi_loadf_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1478 | STBIDEF float *stbi_loadf_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1444:18: warning: ‘stbi_uc* stbi_load_gif_from_memory(const stbi_uc*, int, int**, int*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1444 | STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1436:18: warning: ‘stbi_uc* stbi_load_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1436 | STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1429:18: warning: ‘stbi_uc* stbi_load_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1429 | STBIDEF stbi_uc *stbi_load_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1422:18: warning: ‘stbi_us* stbi_load_16_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1422 | STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1415:18: warning: ‘stbi_us* stbi_load_16_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1415 | STBIDEF stbi_us *stbi_load_16_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1402:18: warning: ‘stbi_us* stbi_load_16(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1402 | STBIDEF stbi_us *stbi_load_16(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1126:14: warning: ‘void stbi_set_flip_vertically_on_load_thread(int)’ defined but not used [-Wunused-function]
 1126 | STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1116:14: warning: ‘void stbi_set_flip_vertically_on_load(int)’ defined but not used [-Wunused-function]
 1116 | STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
g++ -std=gnu++17 -I"/usr/include/R" -DNDEBUG  -I'/usr/local/lib/R/library/Rcpp/include' -I'/usr/local/lib/R/library/RcppArmadillo/include' -I'/usr/local/lib/R/library/RcppEnsmallen/include' -I/usr/local/include   -I. -I../inst/include -fopenmp -fpic  -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer    -c dbscan.cpp -o dbscan.o
In file included from ../inst/include/mlpack/core/stb/stb.hpp:80,
                 from ../inst/include/mlpack/core.hpp:38,
                 from ../inst/include/mlpack/methods/dbscan/dbscan_main.cpp:12,
                 from dbscan.cpp:9:
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1607:14: warning: ‘int stbi_write_jpg_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1607 | STBIWDEF int stbi_write_jpg_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int quality)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1231:14: warning: ‘int stbi_write_png_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1231 | STBIWDEF int stbi_write_png_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int stride_bytes)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:787:14: warning: ‘int stbi_write_hdr_to_func(void (*)(void*, void*, int), void*, int, int, int, const float*)’ defined but not used [-Wunused-function]
  787 | STBIWDEF int stbi_write_hdr_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const float *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:611:14: warning: ‘int stbi_write_tga_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  611 | STBIWDEF int stbi_write_tga_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:512:14: warning: ‘int stbi_write_bmp_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  512 | STBIWDEF int stbi_write_bmp_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:262:15: warning: ‘void stbi_flip_vertically_on_write(int)’ defined but not used [-Wunused-function]
  262 | STBIWDEF void stbi_flip_vertically_on_write(int flag)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ../inst/include/mlpack/core/stb/stb.hpp:79:
../inst/include/mlpack/core/stb/bundled/stb_image.h:7755:13: warning: ‘int stbi_is_16_bit_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 7755 | STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *c, void *user)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7748:13: warning: ‘int stbi_is_16_bit_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 7748 | STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7741:13: warning: ‘int stbi_info_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7741 | STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7734:13: warning: ‘int stbi_info_from_memory(const stbi_uc*, int, int*, int*, int*)’ defined but not used [-Wunused-function]
 7734 | STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7712:13: warning: ‘int stbi_is_16_bit(const char*)’ defined but not used [-Wunused-function]
 7712 | STBIDEF int stbi_is_16_bit(char const *filename)
      |             ^~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7691:13: warning: ‘int stbi_info(const char*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7691 | STBIDEF int stbi_info(char const *filename, int *x, int *y, int *comp)
      |             ^~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5019:14: warning: ‘void stbi_convert_iphone_png_to_rgb_thread(int)’ defined but not used [-Wunused-function]
 5019 | STBIDEF void stbi_convert_iphone_png_to_rgb_thread(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5013:14: warning: ‘void stbi_set_unpremultiply_on_load_thread(int)’ defined but not used [-Wunused-function]
 5013 | STBIDEF void stbi_set_unpremultiply_on_load_thread(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5001:14: warning: ‘void stbi_convert_iphone_png_to_rgb(int)’ defined but not used [-Wunused-function]
 5001 | STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4996:14: warning: ‘void stbi_set_unpremultiply_on_load(int)’ defined but not used [-Wunused-function]
 4996 | STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4584:13: warning: ‘int stbi_zlib_decode_noheader_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4584 | STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4568:15: warning: ‘char* stbi_zlib_decode_noheader_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4568 | STBIDEF char *stbi_zlib_decode_noheader_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4557:13: warning: ‘int stbi_zlib_decode_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4557 | STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, char const *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4536:15: warning: ‘char* stbi_zlib_decode_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4536 | STBIDEF char *stbi_zlib_decode_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1582:16: warning: ‘void stbi_hdr_to_ldr_scale(float)’ defined but not used [-Wunused-function]
 1582 | STBIDEF void   stbi_hdr_to_ldr_scale(float scale) { stbi__h2l_scale_i = 1/scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1581:16: warning: ‘void stbi_hdr_to_ldr_gamma(float)’ defined but not used [-Wunused-function]
 1581 | STBIDEF void   stbi_hdr_to_ldr_gamma(float gamma) { stbi__h2l_gamma_i = 1/gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1576:16: warning: ‘void stbi_ldr_to_hdr_scale(float)’ defined but not used [-Wunused-function]
 1576 | STBIDEF void   stbi_ldr_to_hdr_scale(float scale) { stbi__l2h_scale = scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1575:16: warning: ‘void stbi_ldr_to_hdr_gamma(float)’ defined but not used [-Wunused-function]
 1575 | STBIDEF void   stbi_ldr_to_hdr_gamma(float gamma) { stbi__l2h_gamma = gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1559:18: warning: ‘int stbi_is_hdr_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 1559 | STBIDEF int      stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1531:18: warning: ‘int stbi_is_hdr(const char*)’ defined but not used [-Wunused-function]
 1531 | STBIDEF int      stbi_is_hdr          (char const *filename)
      |                  ^~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1517:13: warning: ‘int stbi_is_hdr_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 1517 | STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1493:16: warning: ‘float* stbi_loadf(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1493 | STBIDEF float *stbi_loadf(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1485:16: warning: ‘float* stbi_loadf_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1485 | STBIDEF float *stbi_loadf_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1478:16: warning: ‘float* stbi_loadf_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1478 | STBIDEF float *stbi_loadf_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1444:18: warning: ‘stbi_uc* stbi_load_gif_from_memory(const stbi_uc*, int, int**, int*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1444 | STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1436:18: warning: ‘stbi_uc* stbi_load_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1436 | STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1429:18: warning: ‘stbi_uc* stbi_load_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1429 | STBIDEF stbi_uc *stbi_load_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1422:18: warning: ‘stbi_us* stbi_load_16_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1422 | STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1415:18: warning: ‘stbi_us* stbi_load_16_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1415 | STBIDEF stbi_us *stbi_load_16_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1402:18: warning: ‘stbi_us* stbi_load_16(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1402 | STBIDEF stbi_us *stbi_load_16(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1126:14: warning: ‘void stbi_set_flip_vertically_on_load_thread(int)’ defined but not used [-Wunused-function]
 1126 | STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1116:14: warning: ‘void stbi_set_flip_vertically_on_load(int)’ defined but not used [-Wunused-function]
 1116 | STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
g++ -std=gnu++17 -I"/usr/include/R" -DNDEBUG  -I'/usr/local/lib/R/library/Rcpp/include' -I'/usr/local/lib/R/library/RcppArmadillo/include' -I'/usr/local/lib/R/library/RcppEnsmallen/include' -I/usr/local/include   -I. -I../inst/include -fopenmp -fpic  -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer    -c decision_tree.cpp -o decision_tree.o
In file included from ../inst/include/mlpack/core/stb/stb.hpp:80,
                 from ../inst/include/mlpack/core.hpp:38,
                 from ../inst/include/mlpack/methods/decision_tree/decision_tree_main.cpp:12,
                 from decision_tree.cpp:9:
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1607:14: warning: ‘int stbi_write_jpg_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1607 | STBIWDEF int stbi_write_jpg_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int quality)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1231:14: warning: ‘int stbi_write_png_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1231 | STBIWDEF int stbi_write_png_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int stride_bytes)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:787:14: warning: ‘int stbi_write_hdr_to_func(void (*)(void*, void*, int), void*, int, int, int, const float*)’ defined but not used [-Wunused-function]
  787 | STBIWDEF int stbi_write_hdr_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const float *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:611:14: warning: ‘int stbi_write_tga_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  611 | STBIWDEF int stbi_write_tga_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:512:14: warning: ‘int stbi_write_bmp_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  512 | STBIWDEF int stbi_write_bmp_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:262:15: warning: ‘void stbi_flip_vertically_on_write(int)’ defined but not used [-Wunused-function]
  262 | STBIWDEF void stbi_flip_vertically_on_write(int flag)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ../inst/include/mlpack/core/stb/stb.hpp:79:
../inst/include/mlpack/core/stb/bundled/stb_image.h:7755:13: warning: ‘int stbi_is_16_bit_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 7755 | STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *c, void *user)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7748:13: warning: ‘int stbi_is_16_bit_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 7748 | STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7741:13: warning: ‘int stbi_info_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7741 | STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7734:13: warning: ‘int stbi_info_from_memory(const stbi_uc*, int, int*, int*, int*)’ defined but not used [-Wunused-function]
 7734 | STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7712:13: warning: ‘int stbi_is_16_bit(const char*)’ defined but not used [-Wunused-function]
 7712 | STBIDEF int stbi_is_16_bit(char const *filename)
      |             ^~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7691:13: warning: ‘int stbi_info(const char*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7691 | STBIDEF int stbi_info(char const *filename, int *x, int *y, int *comp)
      |             ^~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5019:14: warning: ‘void stbi_convert_iphone_png_to_rgb_thread(int)’ defined but not used [-Wunused-function]
 5019 | STBIDEF void stbi_convert_iphone_png_to_rgb_thread(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5013:14: warning: ‘void stbi_set_unpremultiply_on_load_thread(int)’ defined but not used [-Wunused-function]
 5013 | STBIDEF void stbi_set_unpremultiply_on_load_thread(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5001:14: warning: ‘void stbi_convert_iphone_png_to_rgb(int)’ defined but not used [-Wunused-function]
 5001 | STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4996:14: warning: ‘void stbi_set_unpremultiply_on_load(int)’ defined but not used [-Wunused-function]
 4996 | STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4584:13: warning: ‘int stbi_zlib_decode_noheader_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4584 | STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4568:15: warning: ‘char* stbi_zlib_decode_noheader_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4568 | STBIDEF char *stbi_zlib_decode_noheader_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4557:13: warning: ‘int stbi_zlib_decode_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4557 | STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, char const *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4536:15: warning: ‘char* stbi_zlib_decode_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4536 | STBIDEF char *stbi_zlib_decode_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1582:16: warning: ‘void stbi_hdr_to_ldr_scale(float)’ defined but not used [-Wunused-function]
 1582 | STBIDEF void   stbi_hdr_to_ldr_scale(float scale) { stbi__h2l_scale_i = 1/scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1581:16: warning: ‘void stbi_hdr_to_ldr_gamma(float)’ defined but not used [-Wunused-function]
 1581 | STBIDEF void   stbi_hdr_to_ldr_gamma(float gamma) { stbi__h2l_gamma_i = 1/gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1576:16: warning: ‘void stbi_ldr_to_hdr_scale(float)’ defined but not used [-Wunused-function]
 1576 | STBIDEF void   stbi_ldr_to_hdr_scale(float scale) { stbi__l2h_scale = scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1575:16: warning: ‘void stbi_ldr_to_hdr_gamma(float)’ defined but not used [-Wunused-function]
 1575 | STBIDEF void   stbi_ldr_to_hdr_gamma(float gamma) { stbi__l2h_gamma = gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1559:18: warning: ‘int stbi_is_hdr_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 1559 | STBIDEF int      stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1531:18: warning: ‘int stbi_is_hdr(const char*)’ defined but not used [-Wunused-function]
 1531 | STBIDEF int      stbi_is_hdr          (char const *filename)
      |                  ^~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1517:13: warning: ‘int stbi_is_hdr_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 1517 | STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1493:16: warning: ‘float* stbi_loadf(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1493 | STBIDEF float *stbi_loadf(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1485:16: warning: ‘float* stbi_loadf_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1485 | STBIDEF float *stbi_loadf_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1478:16: warning: ‘float* stbi_loadf_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1478 | STBIDEF float *stbi_loadf_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1444:18: warning: ‘stbi_uc* stbi_load_gif_from_memory(const stbi_uc*, int, int**, int*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1444 | STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1436:18: warning: ‘stbi_uc* stbi_load_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1436 | STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1429:18: warning: ‘stbi_uc* stbi_load_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1429 | STBIDEF stbi_uc *stbi_load_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1422:18: warning: ‘stbi_us* stbi_load_16_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1422 | STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1415:18: warning: ‘stbi_us* stbi_load_16_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1415 | STBIDEF stbi_us *stbi_load_16_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1402:18: warning: ‘stbi_us* stbi_load_16(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1402 | STBIDEF stbi_us *stbi_load_16(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1126:14: warning: ‘void stbi_set_flip_vertically_on_load_thread(int)’ defined but not used [-Wunused-function]
 1126 | STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1116:14: warning: ‘void stbi_set_flip_vertically_on_load(int)’ defined but not used [-Wunused-function]
 1116 | STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
g++ -std=gnu++17 -I"/usr/include/R" -DNDEBUG  -I'/usr/local/lib/R/library/Rcpp/include' -I'/usr/local/lib/R/library/RcppArmadillo/include' -I'/usr/local/lib/R/library/RcppEnsmallen/include' -I/usr/local/include   -I. -I../inst/include -fopenmp -fpic  -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer    -c det.cpp -o det.o
In file included from ../inst/include/mlpack/core/stb/stb.hpp:80,
                 from ../inst/include/mlpack/core.hpp:38,
                 from ../inst/include/mlpack/methods/det/det_main.cpp:12,
                 from det.cpp:9:
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1607:14: warning: ‘int stbi_write_jpg_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1607 | STBIWDEF int stbi_write_jpg_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int quality)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1231:14: warning: ‘int stbi_write_png_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1231 | STBIWDEF int stbi_write_png_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int stride_bytes)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:787:14: warning: ‘int stbi_write_hdr_to_func(void (*)(void*, void*, int), void*, int, int, int, const float*)’ defined but not used [-Wunused-function]
  787 | STBIWDEF int stbi_write_hdr_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const float *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:611:14: warning: ‘int stbi_write_tga_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  611 | STBIWDEF int stbi_write_tga_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:512:14: warning: ‘int stbi_write_bmp_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  512 | STBIWDEF int stbi_write_bmp_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:262:15: warning: ‘void stbi_flip_vertically_on_write(int)’ defined but not used [-Wunused-function]
  262 | STBIWDEF void stbi_flip_vertically_on_write(int flag)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ../inst/include/mlpack/core/stb/stb.hpp:79:
../inst/include/mlpack/core/stb/bundled/stb_image.h:7755:13: warning: ‘int stbi_is_16_bit_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 7755 | STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *c, void *user)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7748:13: warning: ‘int stbi_is_16_bit_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 7748 | STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7741:13: warning: ‘int stbi_info_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7741 | STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7734:13: warning: ‘int stbi_info_from_memory(const stbi_uc*, int, int*, int*, int*)’ defined but not used [-Wunused-function]
 7734 | STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7712:13: warning: ‘int stbi_is_16_bit(const char*)’ defined but not used [-Wunused-function]
 7712 | STBIDEF int stbi_is_16_bit(char const *filename)
      |             ^~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7691:13: warning: ‘int stbi_info(const char*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7691 | STBIDEF int stbi_info(char const *filename, int *x, int *y, int *comp)
      |             ^~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5019:14: warning: ‘void stbi_convert_iphone_png_to_rgb_thread(int)’ defined but not used [-Wunused-function]
 5019 | STBIDEF void stbi_convert_iphone_png_to_rgb_thread(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5013:14: warning: ‘void stbi_set_unpremultiply_on_load_thread(int)’ defined but not used [-Wunused-function]
 5013 | STBIDEF void stbi_set_unpremultiply_on_load_thread(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5001:14: warning: ‘void stbi_convert_iphone_png_to_rgb(int)’ defined but not used [-Wunused-function]
 5001 | STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4996:14: warning: ‘void stbi_set_unpremultiply_on_load(int)’ defined but not used [-Wunused-function]
 4996 | STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4584:13: warning: ‘int stbi_zlib_decode_noheader_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4584 | STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4568:15: warning: ‘char* stbi_zlib_decode_noheader_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4568 | STBIDEF char *stbi_zlib_decode_noheader_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4557:13: warning: ‘int stbi_zlib_decode_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4557 | STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, char const *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4536:15: warning: ‘char* stbi_zlib_decode_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4536 | STBIDEF char *stbi_zlib_decode_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1582:16: warning: ‘void stbi_hdr_to_ldr_scale(float)’ defined but not used [-Wunused-function]
 1582 | STBIDEF void   stbi_hdr_to_ldr_scale(float scale) { stbi__h2l_scale_i = 1/scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1581:16: warning: ‘void stbi_hdr_to_ldr_gamma(float)’ defined but not used [-Wunused-function]
 1581 | STBIDEF void   stbi_hdr_to_ldr_gamma(float gamma) { stbi__h2l_gamma_i = 1/gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1576:16: warning: ‘void stbi_ldr_to_hdr_scale(float)’ defined but not used [-Wunused-function]
 1576 | STBIDEF void   stbi_ldr_to_hdr_scale(float scale) { stbi__l2h_scale = scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1575:16: warning: ‘void stbi_ldr_to_hdr_gamma(float)’ defined but not used [-Wunused-function]
 1575 | STBIDEF void   stbi_ldr_to_hdr_gamma(float gamma) { stbi__l2h_gamma = gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1559:18: warning: ‘int stbi_is_hdr_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 1559 | STBIDEF int      stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1531:18: warning: ‘int stbi_is_hdr(const char*)’ defined but not used [-Wunused-function]
 1531 | STBIDEF int      stbi_is_hdr          (char const *filename)
      |                  ^~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1517:13: warning: ‘int stbi_is_hdr_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 1517 | STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1493:16: warning: ‘float* stbi_loadf(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1493 | STBIDEF float *stbi_loadf(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1485:16: warning: ‘float* stbi_loadf_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1485 | STBIDEF float *stbi_loadf_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1478:16: warning: ‘float* stbi_loadf_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1478 | STBIDEF float *stbi_loadf_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1444:18: warning: ‘stbi_uc* stbi_load_gif_from_memory(const stbi_uc*, int, int**, int*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1444 | STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1436:18: warning: ‘stbi_uc* stbi_load_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1436 | STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1429:18: warning: ‘stbi_uc* stbi_load_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1429 | STBIDEF stbi_uc *stbi_load_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1422:18: warning: ‘stbi_us* stbi_load_16_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1422 | STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1415:18: warning: ‘stbi_us* stbi_load_16_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1415 | STBIDEF stbi_us *stbi_load_16_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1402:18: warning: ‘stbi_us* stbi_load_16(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1402 | STBIDEF stbi_us *stbi_load_16(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1126:14: warning: ‘void stbi_set_flip_vertically_on_load_thread(int)’ defined but not used [-Wunused-function]
 1126 | STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1116:14: warning: ‘void stbi_set_flip_vertically_on_load(int)’ defined but not used [-Wunused-function]
 1116 | STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
g++ -std=gnu++17 -I"/usr/include/R" -DNDEBUG  -I'/usr/local/lib/R/library/Rcpp/include' -I'/usr/local/lib/R/library/RcppArmadillo/include' -I'/usr/local/lib/R/library/RcppEnsmallen/include' -I/usr/local/include   -I. -I../inst/include -fopenmp -fpic  -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer    -c emst.cpp -o emst.o
In file included from ../inst/include/mlpack/core/stb/stb.hpp:80,
                 from ../inst/include/mlpack/core.hpp:38,
                 from ../inst/include/mlpack/methods/emst/emst_main.cpp:27,
                 from emst.cpp:9:
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1607:14: warning: ‘int stbi_write_jpg_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1607 | STBIWDEF int stbi_write_jpg_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int quality)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1231:14: warning: ‘int stbi_write_png_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1231 | STBIWDEF int stbi_write_png_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int stride_bytes)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:787:14: warning: ‘int stbi_write_hdr_to_func(void (*)(void*, void*, int), void*, int, int, int, const float*)’ defined but not used [-Wunused-function]
  787 | STBIWDEF int stbi_write_hdr_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const float *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:611:14: warning: ‘int stbi_write_tga_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  611 | STBIWDEF int stbi_write_tga_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:512:14: warning: ‘int stbi_write_bmp_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  512 | STBIWDEF int stbi_write_bmp_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:262:15: warning: ‘void stbi_flip_vertically_on_write(int)’ defined but not used [-Wunused-function]
  262 | STBIWDEF void stbi_flip_vertically_on_write(int flag)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ../inst/include/mlpack/core/stb/stb.hpp:79:
../inst/include/mlpack/core/stb/bundled/stb_image.h:7755:13: warning: ‘int stbi_is_16_bit_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 7755 | STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *c, void *user)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7748:13: warning: ‘int stbi_is_16_bit_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 7748 | STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7741:13: warning: ‘int stbi_info_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7741 | STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7734:13: warning: ‘int stbi_info_from_memory(const stbi_uc*, int, int*, int*, int*)’ defined but not used [-Wunused-function]
 7734 | STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7712:13: warning: ‘int stbi_is_16_bit(const char*)’ defined but not used [-Wunused-function]
 7712 | STBIDEF int stbi_is_16_bit(char const *filename)
      |             ^~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7691:13: warning: ‘int stbi_info(const char*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7691 | STBIDEF int stbi_info(char const *filename, int *x, int *y, int *comp)
      |             ^~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5019:14: warning: ‘void stbi_convert_iphone_png_to_rgb_thread(int)’ defined but not used [-Wunused-function]
 5019 | STBIDEF void stbi_convert_iphone_png_to_rgb_thread(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5013:14: warning: ‘void stbi_set_unpremultiply_on_load_thread(int)’ defined but not used [-Wunused-function]
 5013 | STBIDEF void stbi_set_unpremultiply_on_load_thread(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5001:14: warning: ‘void stbi_convert_iphone_png_to_rgb(int)’ defined but not used [-Wunused-function]
 5001 | STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4996:14: warning: ‘void stbi_set_unpremultiply_on_load(int)’ defined but not used [-Wunused-function]
 4996 | STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4584:13: warning: ‘int stbi_zlib_decode_noheader_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4584 | STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4568:15: warning: ‘char* stbi_zlib_decode_noheader_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4568 | STBIDEF char *stbi_zlib_decode_noheader_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4557:13: warning: ‘int stbi_zlib_decode_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4557 | STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, char const *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4536:15: warning: ‘char* stbi_zlib_decode_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4536 | STBIDEF char *stbi_zlib_decode_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1582:16: warning: ‘void stbi_hdr_to_ldr_scale(float)’ defined but not used [-Wunused-function]
 1582 | STBIDEF void   stbi_hdr_to_ldr_scale(float scale) { stbi__h2l_scale_i = 1/scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1581:16: warning: ‘void stbi_hdr_to_ldr_gamma(float)’ defined but not used [-Wunused-function]
 1581 | STBIDEF void   stbi_hdr_to_ldr_gamma(float gamma) { stbi__h2l_gamma_i = 1/gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1576:16: warning: ‘void stbi_ldr_to_hdr_scale(float)’ defined but not used [-Wunused-function]
 1576 | STBIDEF void   stbi_ldr_to_hdr_scale(float scale) { stbi__l2h_scale = scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1575:16: warning: ‘void stbi_ldr_to_hdr_gamma(float)’ defined but not used [-Wunused-function]
 1575 | STBIDEF void   stbi_ldr_to_hdr_gamma(float gamma) { stbi__l2h_gamma = gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1559:18: warning: ‘int stbi_is_hdr_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 1559 | STBIDEF int      stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1531:18: warning: ‘int stbi_is_hdr(const char*)’ defined but not used [-Wunused-function]
 1531 | STBIDEF int      stbi_is_hdr          (char const *filename)
      |                  ^~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1517:13: warning: ‘int stbi_is_hdr_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 1517 | STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1493:16: warning: ‘float* stbi_loadf(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1493 | STBIDEF float *stbi_loadf(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1485:16: warning: ‘float* stbi_loadf_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1485 | STBIDEF float *stbi_loadf_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1478:16: warning: ‘float* stbi_loadf_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1478 | STBIDEF float *stbi_loadf_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1444:18: warning: ‘stbi_uc* stbi_load_gif_from_memory(const stbi_uc*, int, int**, int*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1444 | STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1436:18: warning: ‘stbi_uc* stbi_load_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1436 | STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1429:18: warning: ‘stbi_uc* stbi_load_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1429 | STBIDEF stbi_uc *stbi_load_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1422:18: warning: ‘stbi_us* stbi_load_16_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1422 | STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1415:18: warning: ‘stbi_us* stbi_load_16_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1415 | STBIDEF stbi_us *stbi_load_16_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1402:18: warning: ‘stbi_us* stbi_load_16(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1402 | STBIDEF stbi_us *stbi_load_16(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1126:14: warning: ‘void stbi_set_flip_vertically_on_load_thread(int)’ defined but not used [-Wunused-function]
 1126 | STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1116:14: warning: ‘void stbi_set_flip_vertically_on_load(int)’ defined but not used [-Wunused-function]
 1116 | STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
g++ -std=gnu++17 -I"/usr/include/R" -DNDEBUG  -I'/usr/local/lib/R/library/Rcpp/include' -I'/usr/local/lib/R/library/RcppArmadillo/include' -I'/usr/local/lib/R/library/RcppEnsmallen/include' -I/usr/local/include   -I. -I../inst/include -fopenmp -fpic  -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer    -c fastmks.cpp -o fastmks.o
In file included from ../inst/include/mlpack/core/stb/stb.hpp:80,
                 from ../inst/include/mlpack/core.hpp:38,
                 from ../inst/include/mlpack/methods/fastmks/fastmks_main.cpp:12,
                 from fastmks.cpp:9:
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1607:14: warning: ‘int stbi_write_jpg_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1607 | STBIWDEF int stbi_write_jpg_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int quality)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1231:14: warning: ‘int stbi_write_png_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1231 | STBIWDEF int stbi_write_png_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int stride_bytes)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:787:14: warning: ‘int stbi_write_hdr_to_func(void (*)(void*, void*, int), void*, int, int, int, const float*)’ defined but not used [-Wunused-function]
  787 | STBIWDEF int stbi_write_hdr_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const float *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:611:14: warning: ‘int stbi_write_tga_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  611 | STBIWDEF int stbi_write_tga_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:512:14: warning: ‘int stbi_write_bmp_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  512 | STBIWDEF int stbi_write_bmp_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:262:15: warning: ‘void stbi_flip_vertically_on_write(int)’ defined but not used [-Wunused-function]
  262 | STBIWDEF void stbi_flip_vertically_on_write(int flag)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ../inst/include/mlpack/core/stb/stb.hpp:79:
../inst/include/mlpack/core/stb/bundled/stb_image.h:7755:13: warning: ‘int stbi_is_16_bit_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 7755 | STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *c, void *user)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7748:13: warning: ‘int stbi_is_16_bit_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 7748 | STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7741:13: warning: ‘int stbi_info_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7741 | STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7734:13: warning: ‘int stbi_info_from_memory(const stbi_uc*, int, int*, int*, int*)’ defined but not used [-Wunused-function]
 7734 | STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7712:13: warning: ‘int stbi_is_16_bit(const char*)’ defined but not used [-Wunused-function]
 7712 | STBIDEF int stbi_is_16_bit(char const *filename)
      |             ^~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7691:13: warning: ‘int stbi_info(const char*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7691 | STBIDEF int stbi_info(char const *filename, int *x, int *y, int *comp)
      |             ^~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5019:14: warning: ‘void stbi_convert_iphone_png_to_rgb_thread(int)’ defined but not used [-Wunused-function]
 5019 | STBIDEF void stbi_convert_iphone_png_to_rgb_thread(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5013:14: warning: ‘void stbi_set_unpremultiply_on_load_thread(int)’ defined but not used [-Wunused-function]
 5013 | STBIDEF void stbi_set_unpremultiply_on_load_thread(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5001:14: warning: ‘void stbi_convert_iphone_png_to_rgb(int)’ defined but not used [-Wunused-function]
 5001 | STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4996:14: warning: ‘void stbi_set_unpremultiply_on_load(int)’ defined but not used [-Wunused-function]
 4996 | STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4584:13: warning: ‘int stbi_zlib_decode_noheader_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4584 | STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4568:15: warning: ‘char* stbi_zlib_decode_noheader_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4568 | STBIDEF char *stbi_zlib_decode_noheader_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4557:13: warning: ‘int stbi_zlib_decode_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4557 | STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, char const *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4536:15: warning: ‘char* stbi_zlib_decode_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4536 | STBIDEF char *stbi_zlib_decode_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1582:16: warning: ‘void stbi_hdr_to_ldr_scale(float)’ defined but not used [-Wunused-function]
 1582 | STBIDEF void   stbi_hdr_to_ldr_scale(float scale) { stbi__h2l_scale_i = 1/scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1581:16: warning: ‘void stbi_hdr_to_ldr_gamma(float)’ defined but not used [-Wunused-function]
 1581 | STBIDEF void   stbi_hdr_to_ldr_gamma(float gamma) { stbi__h2l_gamma_i = 1/gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1576:16: warning: ‘void stbi_ldr_to_hdr_scale(float)’ defined but not used [-Wunused-function]
 1576 | STBIDEF void   stbi_ldr_to_hdr_scale(float scale) { stbi__l2h_scale = scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1575:16: warning: ‘void stbi_ldr_to_hdr_gamma(float)’ defined but not used [-Wunused-function]
 1575 | STBIDEF void   stbi_ldr_to_hdr_gamma(float gamma) { stbi__l2h_gamma = gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1559:18: warning: ‘int stbi_is_hdr_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 1559 | STBIDEF int      stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1531:18: warning: ‘int stbi_is_hdr(const char*)’ defined but not used [-Wunused-function]
 1531 | STBIDEF int      stbi_is_hdr          (char const *filename)
      |                  ^~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1517:13: warning: ‘int stbi_is_hdr_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 1517 | STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1493:16: warning: ‘float* stbi_loadf(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1493 | STBIDEF float *stbi_loadf(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1485:16: warning: ‘float* stbi_loadf_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1485 | STBIDEF float *stbi_loadf_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1478:16: warning: ‘float* stbi_loadf_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1478 | STBIDEF float *stbi_loadf_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1444:18: warning: ‘stbi_uc* stbi_load_gif_from_memory(const stbi_uc*, int, int**, int*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1444 | STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1436:18: warning: ‘stbi_uc* stbi_load_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1436 | STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1429:18: warning: ‘stbi_uc* stbi_load_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1429 | STBIDEF stbi_uc *stbi_load_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1422:18: warning: ‘stbi_us* stbi_load_16_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1422 | STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1415:18: warning: ‘stbi_us* stbi_load_16_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1415 | STBIDEF stbi_us *stbi_load_16_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1402:18: warning: ‘stbi_us* stbi_load_16(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1402 | STBIDEF stbi_us *stbi_load_16(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1126:14: warning: ‘void stbi_set_flip_vertically_on_load_thread(int)’ defined but not used [-Wunused-function]
 1126 | STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1116:14: warning: ‘void stbi_set_flip_vertically_on_load(int)’ defined but not used [-Wunused-function]
 1116 | STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
g++ -std=gnu++17 -I"/usr/include/R" -DNDEBUG  -I'/usr/local/lib/R/library/Rcpp/include' -I'/usr/local/lib/R/library/RcppArmadillo/include' -I'/usr/local/lib/R/library/RcppEnsmallen/include' -I/usr/local/include   -I. -I../inst/include -fopenmp -fpic  -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer    -c gmm_generate.cpp -o gmm_generate.o
In file included from ../inst/include/mlpack/core/stb/stb.hpp:80,
                 from ../inst/include/mlpack/core.hpp:38,
                 from ../inst/include/mlpack/methods/gmm/gmm_generate_main.cpp:12,
                 from gmm_generate.cpp:9:
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1607:14: warning: ‘int stbi_write_jpg_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1607 | STBIWDEF int stbi_write_jpg_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int quality)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1231:14: warning: ‘int stbi_write_png_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1231 | STBIWDEF int stbi_write_png_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int stride_bytes)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:787:14: warning: ‘int stbi_write_hdr_to_func(void (*)(void*, void*, int), void*, int, int, int, const float*)’ defined but not used [-Wunused-function]
  787 | STBIWDEF int stbi_write_hdr_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const float *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:611:14: warning: ‘int stbi_write_tga_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  611 | STBIWDEF int stbi_write_tga_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:512:14: warning: ‘int stbi_write_bmp_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  512 | STBIWDEF int stbi_write_bmp_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:262:15: warning: ‘void stbi_flip_vertically_on_write(int)’ defined but not used [-Wunused-function]
  262 | STBIWDEF void stbi_flip_vertically_on_write(int flag)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ../inst/include/mlpack/core/stb/stb.hpp:79:
../inst/include/mlpack/core/stb/bundled/stb_image.h:7755:13: warning: ‘int stbi_is_16_bit_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 7755 | STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *c, void *user)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7748:13: warning: ‘int stbi_is_16_bit_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 7748 | STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7741:13: warning: ‘int stbi_info_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7741 | STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7734:13: warning: ‘int stbi_info_from_memory(const stbi_uc*, int, int*, int*, int*)’ defined but not used [-Wunused-function]
 7734 | STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7712:13: warning: ‘int stbi_is_16_bit(const char*)’ defined but not used [-Wunused-function]
 7712 | STBIDEF int stbi_is_16_bit(char const *filename)
      |             ^~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7691:13: warning: ‘int stbi_info(const char*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7691 | STBIDEF int stbi_info(char const *filename, int *x, int *y, int *comp)
      |             ^~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5019:14: warning: ‘void stbi_convert_iphone_png_to_rgb_thread(int)’ defined but not used [-Wunused-function]
 5019 | STBIDEF void stbi_convert_iphone_png_to_rgb_thread(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5013:14: warning: ‘void stbi_set_unpremultiply_on_load_thread(int)’ defined but not used [-Wunused-function]
 5013 | STBIDEF void stbi_set_unpremultiply_on_load_thread(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5001:14: warning: ‘void stbi_convert_iphone_png_to_rgb(int)’ defined but not used [-Wunused-function]
 5001 | STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4996:14: warning: ‘void stbi_set_unpremultiply_on_load(int)’ defined but not used [-Wunused-function]
 4996 | STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4584:13: warning: ‘int stbi_zlib_decode_noheader_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4584 | STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4568:15: warning: ‘char* stbi_zlib_decode_noheader_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4568 | STBIDEF char *stbi_zlib_decode_noheader_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4557:13: warning: ‘int stbi_zlib_decode_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4557 | STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, char const *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4536:15: warning: ‘char* stbi_zlib_decode_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4536 | STBIDEF char *stbi_zlib_decode_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1582:16: warning: ‘void stbi_hdr_to_ldr_scale(float)’ defined but not used [-Wunused-function]
 1582 | STBIDEF void   stbi_hdr_to_ldr_scale(float scale) { stbi__h2l_scale_i = 1/scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1581:16: warning: ‘void stbi_hdr_to_ldr_gamma(float)’ defined but not used [-Wunused-function]
 1581 | STBIDEF void   stbi_hdr_to_ldr_gamma(float gamma) { stbi__h2l_gamma_i = 1/gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1576:16: warning: ‘void stbi_ldr_to_hdr_scale(float)’ defined but not used [-Wunused-function]
 1576 | STBIDEF void   stbi_ldr_to_hdr_scale(float scale) { stbi__l2h_scale = scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1575:16: warning: ‘void stbi_ldr_to_hdr_gamma(float)’ defined but not used [-Wunused-function]
 1575 | STBIDEF void   stbi_ldr_to_hdr_gamma(float gamma) { stbi__l2h_gamma = gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1559:18: warning: ‘int stbi_is_hdr_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 1559 | STBIDEF int      stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1531:18: warning: ‘int stbi_is_hdr(const char*)’ defined but not used [-Wunused-function]
 1531 | STBIDEF int      stbi_is_hdr          (char const *filename)
      |                  ^~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1517:13: warning: ‘int stbi_is_hdr_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 1517 | STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1493:16: warning: ‘float* stbi_loadf(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1493 | STBIDEF float *stbi_loadf(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1485:16: warning: ‘float* stbi_loadf_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1485 | STBIDEF float *stbi_loadf_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1478:16: warning: ‘float* stbi_loadf_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1478 | STBIDEF float *stbi_loadf_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1444:18: warning: ‘stbi_uc* stbi_load_gif_from_memory(const stbi_uc*, int, int**, int*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1444 | STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1436:18: warning: ‘stbi_uc* stbi_load_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1436 | STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1429:18: warning: ‘stbi_uc* stbi_load_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1429 | STBIDEF stbi_uc *stbi_load_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1422:18: warning: ‘stbi_us* stbi_load_16_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1422 | STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1415:18: warning: ‘stbi_us* stbi_load_16_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1415 | STBIDEF stbi_us *stbi_load_16_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1402:18: warning: ‘stbi_us* stbi_load_16(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1402 | STBIDEF stbi_us *stbi_load_16(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1126:14: warning: ‘void stbi_set_flip_vertically_on_load_thread(int)’ defined but not used [-Wunused-function]
 1126 | STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1116:14: warning: ‘void stbi_set_flip_vertically_on_load(int)’ defined but not used [-Wunused-function]
 1116 | STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
g++ -std=gnu++17 -I"/usr/include/R" -DNDEBUG  -I'/usr/local/lib/R/library/Rcpp/include' -I'/usr/local/lib/R/library/RcppArmadillo/include' -I'/usr/local/lib/R/library/RcppEnsmallen/include' -I/usr/local/include   -I. -I../inst/include -fopenmp -fpic  -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer    -c gmm_probability.cpp -o gmm_probability.o
In file included from ../inst/include/mlpack/core/stb/stb.hpp:80,
                 from ../inst/include/mlpack/core.hpp:38,
                 from ../inst/include/mlpack/methods/gmm/gmm_probability_main.cpp:12,
                 from gmm_probability.cpp:9:
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1607:14: warning: ‘int stbi_write_jpg_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1607 | STBIWDEF int stbi_write_jpg_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int quality)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1231:14: warning: ‘int stbi_write_png_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1231 | STBIWDEF int stbi_write_png_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int stride_bytes)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:787:14: warning: ‘int stbi_write_hdr_to_func(void (*)(void*, void*, int), void*, int, int, int, const float*)’ defined but not used [-Wunused-function]
  787 | STBIWDEF int stbi_write_hdr_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const float *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:611:14: warning: ‘int stbi_write_tga_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  611 | STBIWDEF int stbi_write_tga_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:512:14: warning: ‘int stbi_write_bmp_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  512 | STBIWDEF int stbi_write_bmp_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:262:15: warning: ‘void stbi_flip_vertically_on_write(int)’ defined but not used [-Wunused-function]
  262 | STBIWDEF void stbi_flip_vertically_on_write(int flag)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ../inst/include/mlpack/core/stb/stb.hpp:79:
../inst/include/mlpack/core/stb/bundled/stb_image.h:7755:13: warning: ‘int stbi_is_16_bit_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 7755 | STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *c, void *user)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7748:13: warning: ‘int stbi_is_16_bit_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 7748 | STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7741:13: warning: ‘int stbi_info_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7741 | STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7734:13: warning: ‘int stbi_info_from_memory(const stbi_uc*, int, int*, int*, int*)’ defined but not used [-Wunused-function]
 7734 | STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7712:13: warning: ‘int stbi_is_16_bit(const char*)’ defined but not used [-Wunused-function]
 7712 | STBIDEF int stbi_is_16_bit(char const *filename)
      |             ^~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7691:13: warning: ‘int stbi_info(const char*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7691 | STBIDEF int stbi_info(char const *filename, int *x, int *y, int *comp)
      |             ^~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5019:14: warning: ‘void stbi_convert_iphone_png_to_rgb_thread(int)’ defined but not used [-Wunused-function]
 5019 | STBIDEF void stbi_convert_iphone_png_to_rgb_thread(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5013:14: warning: ‘void stbi_set_unpremultiply_on_load_thread(int)’ defined but not used [-Wunused-function]
 5013 | STBIDEF void stbi_set_unpremultiply_on_load_thread(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5001:14: warning: ‘void stbi_convert_iphone_png_to_rgb(int)’ defined but not used [-Wunused-function]
 5001 | STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4996:14: warning: ‘void stbi_set_unpremultiply_on_load(int)’ defined but not used [-Wunused-function]
 4996 | STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4584:13: warning: ‘int stbi_zlib_decode_noheader_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4584 | STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4568:15: warning: ‘char* stbi_zlib_decode_noheader_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4568 | STBIDEF char *stbi_zlib_decode_noheader_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4557:13: warning: ‘int stbi_zlib_decode_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4557 | STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, char const *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4536:15: warning: ‘char* stbi_zlib_decode_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4536 | STBIDEF char *stbi_zlib_decode_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1582:16: warning: ‘void stbi_hdr_to_ldr_scale(float)’ defined but not used [-Wunused-function]
 1582 | STBIDEF void   stbi_hdr_to_ldr_scale(float scale) { stbi__h2l_scale_i = 1/scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1581:16: warning: ‘void stbi_hdr_to_ldr_gamma(float)’ defined but not used [-Wunused-function]
 1581 | STBIDEF void   stbi_hdr_to_ldr_gamma(float gamma) { stbi__h2l_gamma_i = 1/gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1576:16: warning: ‘void stbi_ldr_to_hdr_scale(float)’ defined but not used [-Wunused-function]
 1576 | STBIDEF void   stbi_ldr_to_hdr_scale(float scale) { stbi__l2h_scale = scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1575:16: warning: ‘void stbi_ldr_to_hdr_gamma(float)’ defined but not used [-Wunused-function]
 1575 | STBIDEF void   stbi_ldr_to_hdr_gamma(float gamma) { stbi__l2h_gamma = gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1559:18: warning: ‘int stbi_is_hdr_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 1559 | STBIDEF int      stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1531:18: warning: ‘int stbi_is_hdr(const char*)’ defined but not used [-Wunused-function]
 1531 | STBIDEF int      stbi_is_hdr          (char const *filename)
      |                  ^~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1517:13: warning: ‘int stbi_is_hdr_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 1517 | STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1493:16: warning: ‘float* stbi_loadf(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1493 | STBIDEF float *stbi_loadf(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1485:16: warning: ‘float* stbi_loadf_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1485 | STBIDEF float *stbi_loadf_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1478:16: warning: ‘float* stbi_loadf_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1478 | STBIDEF float *stbi_loadf_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1444:18: warning: ‘stbi_uc* stbi_load_gif_from_memory(const stbi_uc*, int, int**, int*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1444 | STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1436:18: warning: ‘stbi_uc* stbi_load_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1436 | STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1429:18: warning: ‘stbi_uc* stbi_load_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1429 | STBIDEF stbi_uc *stbi_load_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1422:18: warning: ‘stbi_us* stbi_load_16_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1422 | STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1415:18: warning: ‘stbi_us* stbi_load_16_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1415 | STBIDEF stbi_us *stbi_load_16_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1402:18: warning: ‘stbi_us* stbi_load_16(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1402 | STBIDEF stbi_us *stbi_load_16(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1126:14: warning: ‘void stbi_set_flip_vertically_on_load_thread(int)’ defined but not used [-Wunused-function]
 1126 | STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1116:14: warning: ‘void stbi_set_flip_vertically_on_load(int)’ defined but not used [-Wunused-function]
 1116 | STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
g++ -std=gnu++17 -I"/usr/include/R" -DNDEBUG  -I'/usr/local/lib/R/library/Rcpp/include' -I'/usr/local/lib/R/library/RcppArmadillo/include' -I'/usr/local/lib/R/library/RcppEnsmallen/include' -I/usr/local/include   -I. -I../inst/include -fopenmp -fpic  -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer    -c gmm_train.cpp -o gmm_train.o
In file included from ../inst/include/mlpack/core/stb/stb.hpp:80,
                 from ../inst/include/mlpack/core.hpp:38,
                 from ../inst/include/mlpack/methods/gmm/gmm_train_main.cpp:12,
                 from gmm_train.cpp:9:
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1607:14: warning: ‘int stbi_write_jpg_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1607 | STBIWDEF int stbi_write_jpg_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int quality)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1231:14: warning: ‘int stbi_write_png_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1231 | STBIWDEF int stbi_write_png_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int stride_bytes)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:787:14: warning: ‘int stbi_write_hdr_to_func(void (*)(void*, void*, int), void*, int, int, int, const float*)’ defined but not used [-Wunused-function]
  787 | STBIWDEF int stbi_write_hdr_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const float *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:611:14: warning: ‘int stbi_write_tga_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  611 | STBIWDEF int stbi_write_tga_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:512:14: warning: ‘int stbi_write_bmp_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  512 | STBIWDEF int stbi_write_bmp_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:262:15: warning: ‘void stbi_flip_vertically_on_write(int)’ defined but not used [-Wunused-function]
  262 | STBIWDEF void stbi_flip_vertically_on_write(int flag)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ../inst/include/mlpack/core/stb/stb.hpp:79:
../inst/include/mlpack/core/stb/bundled/stb_image.h:7755:13: warning: ‘int stbi_is_16_bit_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 7755 | STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *c, void *user)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7748:13: warning: ‘int stbi_is_16_bit_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 7748 | STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7741:13: warning: ‘int stbi_info_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7741 | STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7734:13: warning: ‘int stbi_info_from_memory(const stbi_uc*, int, int*, int*, int*)’ defined but not used [-Wunused-function]
 7734 | STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7712:13: warning: ‘int stbi_is_16_bit(const char*)’ defined but not used [-Wunused-function]
 7712 | STBIDEF int stbi_is_16_bit(char const *filename)
      |             ^~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7691:13: warning: ‘int stbi_info(const char*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7691 | STBIDEF int stbi_info(char const *filename, int *x, int *y, int *comp)
      |             ^~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5019:14: warning: ‘void stbi_convert_iphone_png_to_rgb_thread(int)’ defined but not used [-Wunused-function]
 5019 | STBIDEF void stbi_convert_iphone_png_to_rgb_thread(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5013:14: warning: ‘void stbi_set_unpremultiply_on_load_thread(int)’ defined but not used [-Wunused-function]
 5013 | STBIDEF void stbi_set_unpremultiply_on_load_thread(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5001:14: warning: ‘void stbi_convert_iphone_png_to_rgb(int)’ defined but not used [-Wunused-function]
 5001 | STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4996:14: warning: ‘void stbi_set_unpremultiply_on_load(int)’ defined but not used [-Wunused-function]
 4996 | STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4584:13: warning: ‘int stbi_zlib_decode_noheader_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4584 | STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4568:15: warning: ‘char* stbi_zlib_decode_noheader_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4568 | STBIDEF char *stbi_zlib_decode_noheader_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4557:13: warning: ‘int stbi_zlib_decode_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4557 | STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, char const *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4536:15: warning: ‘char* stbi_zlib_decode_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4536 | STBIDEF char *stbi_zlib_decode_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1582:16: warning: ‘void stbi_hdr_to_ldr_scale(float)’ defined but not used [-Wunused-function]
 1582 | STBIDEF void   stbi_hdr_to_ldr_scale(float scale) { stbi__h2l_scale_i = 1/scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1581:16: warning: ‘void stbi_hdr_to_ldr_gamma(float)’ defined but not used [-Wunused-function]
 1581 | STBIDEF void   stbi_hdr_to_ldr_gamma(float gamma) { stbi__h2l_gamma_i = 1/gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1576:16: warning: ‘void stbi_ldr_to_hdr_scale(float)’ defined but not used [-Wunused-function]
 1576 | STBIDEF void   stbi_ldr_to_hdr_scale(float scale) { stbi__l2h_scale = scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1575:16: warning: ‘void stbi_ldr_to_hdr_gamma(float)’ defined but not used [-Wunused-function]
 1575 | STBIDEF void   stbi_ldr_to_hdr_gamma(float gamma) { stbi__l2h_gamma = gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1559:18: warning: ‘int stbi_is_hdr_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 1559 | STBIDEF int      stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1531:18: warning: ‘int stbi_is_hdr(const char*)’ defined but not used [-Wunused-function]
 1531 | STBIDEF int      stbi_is_hdr          (char const *filename)
      |                  ^~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1517:13: warning: ‘int stbi_is_hdr_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 1517 | STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1493:16: warning: ‘float* stbi_loadf(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1493 | STBIDEF float *stbi_loadf(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1485:16: warning: ‘float* stbi_loadf_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1485 | STBIDEF float *stbi_loadf_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1478:16: warning: ‘float* stbi_loadf_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1478 | STBIDEF float *stbi_loadf_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1444:18: warning: ‘stbi_uc* stbi_load_gif_from_memory(const stbi_uc*, int, int**, int*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1444 | STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1436:18: warning: ‘stbi_uc* stbi_load_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1436 | STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1429:18: warning: ‘stbi_uc* stbi_load_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1429 | STBIDEF stbi_uc *stbi_load_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1422:18: warning: ‘stbi_us* stbi_load_16_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1422 | STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1415:18: warning: ‘stbi_us* stbi_load_16_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1415 | STBIDEF stbi_us *stbi_load_16_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1402:18: warning: ‘stbi_us* stbi_load_16(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1402 | STBIDEF stbi_us *stbi_load_16(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1126:14: warning: ‘void stbi_set_flip_vertically_on_load_thread(int)’ defined but not used [-Wunused-function]
 1126 | STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1116:14: warning: ‘void stbi_set_flip_vertically_on_load(int)’ defined but not used [-Wunused-function]
 1116 | STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
g++ -std=gnu++17 -I"/usr/include/R" -DNDEBUG  -I'/usr/local/lib/R/library/Rcpp/include' -I'/usr/local/lib/R/library/RcppArmadillo/include' -I'/usr/local/lib/R/library/RcppEnsmallen/include' -I/usr/local/include   -I. -I../inst/include -fopenmp -fpic  -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer    -c hmm_generate.cpp -o hmm_generate.o
In file included from ../inst/include/mlpack/core/stb/stb.hpp:80,
                 from ../inst/include/mlpack/core.hpp:38,
                 from ../inst/include/mlpack/methods/hmm/hmm_generate_main.cpp:14,
                 from hmm_generate.cpp:9:
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1607:14: warning: ‘int stbi_write_jpg_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1607 | STBIWDEF int stbi_write_jpg_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int quality)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1231:14: warning: ‘int stbi_write_png_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1231 | STBIWDEF int stbi_write_png_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int stride_bytes)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:787:14: warning: ‘int stbi_write_hdr_to_func(void (*)(void*, void*, int), void*, int, int, int, const float*)’ defined but not used [-Wunused-function]
  787 | STBIWDEF int stbi_write_hdr_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const float *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:611:14: warning: ‘int stbi_write_tga_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  611 | STBIWDEF int stbi_write_tga_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:512:14: warning: ‘int stbi_write_bmp_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  512 | STBIWDEF int stbi_write_bmp_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:262:15: warning: ‘void stbi_flip_vertically_on_write(int)’ defined but not used [-Wunused-function]
  262 | STBIWDEF void stbi_flip_vertically_on_write(int flag)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ../inst/include/mlpack/core/stb/stb.hpp:79:
../inst/include/mlpack/core/stb/bundled/stb_image.h:7755:13: warning: ‘int stbi_is_16_bit_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 7755 | STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *c, void *user)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7748:13: warning: ‘int stbi_is_16_bit_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 7748 | STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7741:13: warning: ‘int stbi_info_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7741 | STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7734:13: warning: ‘int stbi_info_from_memory(const stbi_uc*, int, int*, int*, int*)’ defined but not used [-Wunused-function]
 7734 | STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7712:13: warning: ‘int stbi_is_16_bit(const char*)’ defined but not used [-Wunused-function]
 7712 | STBIDEF int stbi_is_16_bit(char const *filename)
      |             ^~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7691:13: warning: ‘int stbi_info(const char*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7691 | STBIDEF int stbi_info(char const *filename, int *x, int *y, int *comp)
      |             ^~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5019:14: warning: ‘void stbi_convert_iphone_png_to_rgb_thread(int)’ defined but not used [-Wunused-function]
 5019 | STBIDEF void stbi_convert_iphone_png_to_rgb_thread(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5013:14: warning: ‘void stbi_set_unpremultiply_on_load_thread(int)’ defined but not used [-Wunused-function]
 5013 | STBIDEF void stbi_set_unpremultiply_on_load_thread(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5001:14: warning: ‘void stbi_convert_iphone_png_to_rgb(int)’ defined but not used [-Wunused-function]
 5001 | STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4996:14: warning: ‘void stbi_set_unpremultiply_on_load(int)’ defined but not used [-Wunused-function]
 4996 | STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4584:13: warning: ‘int stbi_zlib_decode_noheader_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4584 | STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4568:15: warning: ‘char* stbi_zlib_decode_noheader_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4568 | STBIDEF char *stbi_zlib_decode_noheader_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4557:13: warning: ‘int stbi_zlib_decode_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4557 | STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, char const *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4536:15: warning: ‘char* stbi_zlib_decode_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4536 | STBIDEF char *stbi_zlib_decode_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1582:16: warning: ‘void stbi_hdr_to_ldr_scale(float)’ defined but not used [-Wunused-function]
 1582 | STBIDEF void   stbi_hdr_to_ldr_scale(float scale) { stbi__h2l_scale_i = 1/scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1581:16: warning: ‘void stbi_hdr_to_ldr_gamma(float)’ defined but not used [-Wunused-function]
 1581 | STBIDEF void   stbi_hdr_to_ldr_gamma(float gamma) { stbi__h2l_gamma_i = 1/gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1576:16: warning: ‘void stbi_ldr_to_hdr_scale(float)’ defined but not used [-Wunused-function]
 1576 | STBIDEF void   stbi_ldr_to_hdr_scale(float scale) { stbi__l2h_scale = scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1575:16: warning: ‘void stbi_ldr_to_hdr_gamma(float)’ defined but not used [-Wunused-function]
 1575 | STBIDEF void   stbi_ldr_to_hdr_gamma(float gamma) { stbi__l2h_gamma = gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1559:18: warning: ‘int stbi_is_hdr_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 1559 | STBIDEF int      stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1531:18: warning: ‘int stbi_is_hdr(const char*)’ defined but not used [-Wunused-function]
 1531 | STBIDEF int      stbi_is_hdr          (char const *filename)
      |                  ^~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1517:13: warning: ‘int stbi_is_hdr_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 1517 | STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1493:16: warning: ‘float* stbi_loadf(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1493 | STBIDEF float *stbi_loadf(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1485:16: warning: ‘float* stbi_loadf_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1485 | STBIDEF float *stbi_loadf_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1478:16: warning: ‘float* stbi_loadf_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1478 | STBIDEF float *stbi_loadf_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1444:18: warning: ‘stbi_uc* stbi_load_gif_from_memory(const stbi_uc*, int, int**, int*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1444 | STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1436:18: warning: ‘stbi_uc* stbi_load_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1436 | STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1429:18: warning: ‘stbi_uc* stbi_load_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1429 | STBIDEF stbi_uc *stbi_load_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1422:18: warning: ‘stbi_us* stbi_load_16_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1422 | STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1415:18: warning: ‘stbi_us* stbi_load_16_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1415 | STBIDEF stbi_us *stbi_load_16_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1402:18: warning: ‘stbi_us* stbi_load_16(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1402 | STBIDEF stbi_us *stbi_load_16(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1126:14: warning: ‘void stbi_set_flip_vertically_on_load_thread(int)’ defined but not used [-Wunused-function]
 1126 | STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1116:14: warning: ‘void stbi_set_flip_vertically_on_load(int)’ defined but not used [-Wunused-function]
 1116 | STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
g++ -std=gnu++17 -I"/usr/include/R" -DNDEBUG  -I'/usr/local/lib/R/library/Rcpp/include' -I'/usr/local/lib/R/library/RcppArmadillo/include' -I'/usr/local/lib/R/library/RcppEnsmallen/include' -I/usr/local/include   -I. -I../inst/include -fopenmp -fpic  -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer    -c hmm_loglik.cpp -o hmm_loglik.o
In file included from ../inst/include/mlpack/core/stb/stb.hpp:80,
                 from ../inst/include/mlpack/core.hpp:38,
                 from ../inst/include/mlpack/methods/hmm/hmm_loglik_main.cpp:12,
                 from hmm_loglik.cpp:9:
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1607:14: warning: ‘int stbi_write_jpg_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1607 | STBIWDEF int stbi_write_jpg_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int quality)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1231:14: warning: ‘int stbi_write_png_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1231 | STBIWDEF int stbi_write_png_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int stride_bytes)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:787:14: warning: ‘int stbi_write_hdr_to_func(void (*)(void*, void*, int), void*, int, int, int, const float*)’ defined but not used [-Wunused-function]
  787 | STBIWDEF int stbi_write_hdr_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const float *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:611:14: warning: ‘int stbi_write_tga_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  611 | STBIWDEF int stbi_write_tga_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:512:14: warning: ‘int stbi_write_bmp_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  512 | STBIWDEF int stbi_write_bmp_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:262:15: warning: ‘void stbi_flip_vertically_on_write(int)’ defined but not used [-Wunused-function]
  262 | STBIWDEF void stbi_flip_vertically_on_write(int flag)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ../inst/include/mlpack/core/stb/stb.hpp:79:
../inst/include/mlpack/core/stb/bundled/stb_image.h:7755:13: warning: ‘int stbi_is_16_bit_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 7755 | STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *c, void *user)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7748:13: warning: ‘int stbi_is_16_bit_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 7748 | STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7741:13: warning: ‘int stbi_info_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7741 | STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7734:13: warning: ‘int stbi_info_from_memory(const stbi_uc*, int, int*, int*, int*)’ defined but not used [-Wunused-function]
 7734 | STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7712:13: warning: ‘int stbi_is_16_bit(const char*)’ defined but not used [-Wunused-function]
 7712 | STBIDEF int stbi_is_16_bit(char const *filename)
      |             ^~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7691:13: warning: ‘int stbi_info(const char*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7691 | STBIDEF int stbi_info(char const *filename, int *x, int *y, int *comp)
      |             ^~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5019:14: warning: ‘void stbi_convert_iphone_png_to_rgb_thread(int)’ defined but not used [-Wunused-function]
 5019 | STBIDEF void stbi_convert_iphone_png_to_rgb_thread(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5013:14: warning: ‘void stbi_set_unpremultiply_on_load_thread(int)’ defined but not used [-Wunused-function]
 5013 | STBIDEF void stbi_set_unpremultiply_on_load_thread(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5001:14: warning: ‘void stbi_convert_iphone_png_to_rgb(int)’ defined but not used [-Wunused-function]
 5001 | STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4996:14: warning: ‘void stbi_set_unpremultiply_on_load(int)’ defined but not used [-Wunused-function]
 4996 | STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4584:13: warning: ‘int stbi_zlib_decode_noheader_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4584 | STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4568:15: warning: ‘char* stbi_zlib_decode_noheader_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4568 | STBIDEF char *stbi_zlib_decode_noheader_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4557:13: warning: ‘int stbi_zlib_decode_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4557 | STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, char const *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4536:15: warning: ‘char* stbi_zlib_decode_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4536 | STBIDEF char *stbi_zlib_decode_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1582:16: warning: ‘void stbi_hdr_to_ldr_scale(float)’ defined but not used [-Wunused-function]
 1582 | STBIDEF void   stbi_hdr_to_ldr_scale(float scale) { stbi__h2l_scale_i = 1/scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1581:16: warning: ‘void stbi_hdr_to_ldr_gamma(float)’ defined but not used [-Wunused-function]
 1581 | STBIDEF void   stbi_hdr_to_ldr_gamma(float gamma) { stbi__h2l_gamma_i = 1/gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1576:16: warning: ‘void stbi_ldr_to_hdr_scale(float)’ defined but not used [-Wunused-function]
 1576 | STBIDEF void   stbi_ldr_to_hdr_scale(float scale) { stbi__l2h_scale = scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1575:16: warning: ‘void stbi_ldr_to_hdr_gamma(float)’ defined but not used [-Wunused-function]
 1575 | STBIDEF void   stbi_ldr_to_hdr_gamma(float gamma) { stbi__l2h_gamma = gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1559:18: warning: ‘int stbi_is_hdr_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 1559 | STBIDEF int      stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1531:18: warning: ‘int stbi_is_hdr(const char*)’ defined but not used [-Wunused-function]
 1531 | STBIDEF int      stbi_is_hdr          (char const *filename)
      |                  ^~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1517:13: warning: ‘int stbi_is_hdr_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 1517 | STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1493:16: warning: ‘float* stbi_loadf(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1493 | STBIDEF float *stbi_loadf(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1485:16: warning: ‘float* stbi_loadf_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1485 | STBIDEF float *stbi_loadf_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1478:16: warning: ‘float* stbi_loadf_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1478 | STBIDEF float *stbi_loadf_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1444:18: warning: ‘stbi_uc* stbi_load_gif_from_memory(const stbi_uc*, int, int**, int*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1444 | STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1436:18: warning: ‘stbi_uc* stbi_load_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1436 | STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1429:18: warning: ‘stbi_uc* stbi_load_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1429 | STBIDEF stbi_uc *stbi_load_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1422:18: warning: ‘stbi_us* stbi_load_16_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1422 | STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1415:18: warning: ‘stbi_us* stbi_load_16_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1415 | STBIDEF stbi_us *stbi_load_16_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1402:18: warning: ‘stbi_us* stbi_load_16(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1402 | STBIDEF stbi_us *stbi_load_16(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1126:14: warning: ‘void stbi_set_flip_vertically_on_load_thread(int)’ defined but not used [-Wunused-function]
 1126 | STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1116:14: warning: ‘void stbi_set_flip_vertically_on_load(int)’ defined but not used [-Wunused-function]
 1116 | STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
g++ -std=gnu++17 -I"/usr/include/R" -DNDEBUG  -I'/usr/local/lib/R/library/Rcpp/include' -I'/usr/local/lib/R/library/RcppArmadillo/include' -I'/usr/local/lib/R/library/RcppEnsmallen/include' -I/usr/local/include   -I. -I../inst/include -fopenmp -fpic  -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer    -c hmm_train.cpp -o hmm_train.o
In file included from ../inst/include/mlpack/core/stb/stb.hpp:80,
                 from ../inst/include/mlpack/core.hpp:38,
                 from ../inst/include/mlpack/methods/hmm/hmm_train_main.cpp:12,
                 from hmm_train.cpp:9:
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1607:14: warning: ‘int stbi_write_jpg_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1607 | STBIWDEF int stbi_write_jpg_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int quality)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1231:14: warning: ‘int stbi_write_png_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1231 | STBIWDEF int stbi_write_png_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int stride_bytes)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:787:14: warning: ‘int stbi_write_hdr_to_func(void (*)(void*, void*, int), void*, int, int, int, const float*)’ defined but not used [-Wunused-function]
  787 | STBIWDEF int stbi_write_hdr_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const float *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:611:14: warning: ‘int stbi_write_tga_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  611 | STBIWDEF int stbi_write_tga_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:512:14: warning: ‘int stbi_write_bmp_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  512 | STBIWDEF int stbi_write_bmp_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:262:15: warning: ‘void stbi_flip_vertically_on_write(int)’ defined but not used [-Wunused-function]
  262 | STBIWDEF void stbi_flip_vertically_on_write(int flag)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ../inst/include/mlpack/core/stb/stb.hpp:79:
../inst/include/mlpack/core/stb/bundled/stb_image.h:7755:13: warning: ‘int stbi_is_16_bit_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 7755 | STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *c, void *user)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7748:13: warning: ‘int stbi_is_16_bit_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 7748 | STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7741:13: warning: ‘int stbi_info_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7741 | STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7734:13: warning: ‘int stbi_info_from_memory(const stbi_uc*, int, int*, int*, int*)’ defined but not used [-Wunused-function]
 7734 | STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7712:13: warning: ‘int stbi_is_16_bit(const char*)’ defined but not used [-Wunused-function]
 7712 | STBIDEF int stbi_is_16_bit(char const *filename)
      |             ^~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7691:13: warning: ‘int stbi_info(const char*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7691 | STBIDEF int stbi_info(char const *filename, int *x, int *y, int *comp)
      |             ^~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5019:14: warning: ‘void stbi_convert_iphone_png_to_rgb_thread(int)’ defined but not used [-Wunused-function]
 5019 | STBIDEF void stbi_convert_iphone_png_to_rgb_thread(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5013:14: warning: ‘void stbi_set_unpremultiply_on_load_thread(int)’ defined but not used [-Wunused-function]
 5013 | STBIDEF void stbi_set_unpremultiply_on_load_thread(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5001:14: warning: ‘void stbi_convert_iphone_png_to_rgb(int)’ defined but not used [-Wunused-function]
 5001 | STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4996:14: warning: ‘void stbi_set_unpremultiply_on_load(int)’ defined but not used [-Wunused-function]
 4996 | STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4584:13: warning: ‘int stbi_zlib_decode_noheader_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4584 | STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4568:15: warning: ‘char* stbi_zlib_decode_noheader_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4568 | STBIDEF char *stbi_zlib_decode_noheader_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4557:13: warning: ‘int stbi_zlib_decode_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4557 | STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, char const *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4536:15: warning: ‘char* stbi_zlib_decode_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4536 | STBIDEF char *stbi_zlib_decode_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1582:16: warning: ‘void stbi_hdr_to_ldr_scale(float)’ defined but not used [-Wunused-function]
 1582 | STBIDEF void   stbi_hdr_to_ldr_scale(float scale) { stbi__h2l_scale_i = 1/scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1581:16: warning: ‘void stbi_hdr_to_ldr_gamma(float)’ defined but not used [-Wunused-function]
 1581 | STBIDEF void   stbi_hdr_to_ldr_gamma(float gamma) { stbi__h2l_gamma_i = 1/gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1576:16: warning: ‘void stbi_ldr_to_hdr_scale(float)’ defined but not used [-Wunused-function]
 1576 | STBIDEF void   stbi_ldr_to_hdr_scale(float scale) { stbi__l2h_scale = scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1575:16: warning: ‘void stbi_ldr_to_hdr_gamma(float)’ defined but not used [-Wunused-function]
 1575 | STBIDEF void   stbi_ldr_to_hdr_gamma(float gamma) { stbi__l2h_gamma = gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1559:18: warning: ‘int stbi_is_hdr_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 1559 | STBIDEF int      stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1531:18: warning: ‘int stbi_is_hdr(const char*)’ defined but not used [-Wunused-function]
 1531 | STBIDEF int      stbi_is_hdr          (char const *filename)
      |                  ^~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1517:13: warning: ‘int stbi_is_hdr_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 1517 | STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1493:16: warning: ‘float* stbi_loadf(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1493 | STBIDEF float *stbi_loadf(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1485:16: warning: ‘float* stbi_loadf_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1485 | STBIDEF float *stbi_loadf_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1478:16: warning: ‘float* stbi_loadf_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1478 | STBIDEF float *stbi_loadf_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1444:18: warning: ‘stbi_uc* stbi_load_gif_from_memory(const stbi_uc*, int, int**, int*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1444 | STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1436:18: warning: ‘stbi_uc* stbi_load_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1436 | STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1429:18: warning: ‘stbi_uc* stbi_load_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1429 | STBIDEF stbi_uc *stbi_load_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1422:18: warning: ‘stbi_us* stbi_load_16_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1422 | STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1415:18: warning: ‘stbi_us* stbi_load_16_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1415 | STBIDEF stbi_us *stbi_load_16_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1402:18: warning: ‘stbi_us* stbi_load_16(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1402 | STBIDEF stbi_us *stbi_load_16(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1126:14: warning: ‘void stbi_set_flip_vertically_on_load_thread(int)’ defined but not used [-Wunused-function]
 1126 | STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1116:14: warning: ‘void stbi_set_flip_vertically_on_load(int)’ defined but not used [-Wunused-function]
 1116 | STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
g++ -std=gnu++17 -I"/usr/include/R" -DNDEBUG  -I'/usr/local/lib/R/library/Rcpp/include' -I'/usr/local/lib/R/library/RcppArmadillo/include' -I'/usr/local/lib/R/library/RcppEnsmallen/include' -I/usr/local/include   -I. -I../inst/include -fopenmp -fpic  -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer    -c hmm_viterbi.cpp -o hmm_viterbi.o
In file included from ../inst/include/mlpack/core/stb/stb.hpp:80,
                 from ../inst/include/mlpack/core.hpp:38,
                 from ../inst/include/mlpack/methods/hmm/hmm_viterbi_main.cpp:13,
                 from hmm_viterbi.cpp:9:
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1607:14: warning: ‘int stbi_write_jpg_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1607 | STBIWDEF int stbi_write_jpg_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int quality)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1231:14: warning: ‘int stbi_write_png_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1231 | STBIWDEF int stbi_write_png_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int stride_bytes)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:787:14: warning: ‘int stbi_write_hdr_to_func(void (*)(void*, void*, int), void*, int, int, int, const float*)’ defined but not used [-Wunused-function]
  787 | STBIWDEF int stbi_write_hdr_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const float *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:611:14: warning: ‘int stbi_write_tga_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  611 | STBIWDEF int stbi_write_tga_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:512:14: warning: ‘int stbi_write_bmp_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  512 | STBIWDEF int stbi_write_bmp_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:262:15: warning: ‘void stbi_flip_vertically_on_write(int)’ defined but not used [-Wunused-function]
  262 | STBIWDEF void stbi_flip_vertically_on_write(int flag)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ../inst/include/mlpack/core/stb/stb.hpp:79:
../inst/include/mlpack/core/stb/bundled/stb_image.h:7755:13: warning: ‘int stbi_is_16_bit_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 7755 | STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *c, void *user)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7748:13: warning: ‘int stbi_is_16_bit_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 7748 | STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7741:13: warning: ‘int stbi_info_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7741 | STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7734:13: warning: ‘int stbi_info_from_memory(const stbi_uc*, int, int*, int*, int*)’ defined but not used [-Wunused-function]
 7734 | STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7712:13: warning: ‘int stbi_is_16_bit(const char*)’ defined but not used [-Wunused-function]
 7712 | STBIDEF int stbi_is_16_bit(char const *filename)
      |             ^~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7691:13: warning: ‘int stbi_info(const char*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7691 | STBIDEF int stbi_info(char const *filename, int *x, int *y, int *comp)
      |             ^~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5019:14: warning: ‘void stbi_convert_iphone_png_to_rgb_thread(int)’ defined but not used [-Wunused-function]
 5019 | STBIDEF void stbi_convert_iphone_png_to_rgb_thread(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5013:14: warning: ‘void stbi_set_unpremultiply_on_load_thread(int)’ defined but not used [-Wunused-function]
 5013 | STBIDEF void stbi_set_unpremultiply_on_load_thread(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5001:14: warning: ‘void stbi_convert_iphone_png_to_rgb(int)’ defined but not used [-Wunused-function]
 5001 | STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4996:14: warning: ‘void stbi_set_unpremultiply_on_load(int)’ defined but not used [-Wunused-function]
 4996 | STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4584:13: warning: ‘int stbi_zlib_decode_noheader_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4584 | STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4568:15: warning: ‘char* stbi_zlib_decode_noheader_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4568 | STBIDEF char *stbi_zlib_decode_noheader_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4557:13: warning: ‘int stbi_zlib_decode_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4557 | STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, char const *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4536:15: warning: ‘char* stbi_zlib_decode_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4536 | STBIDEF char *stbi_zlib_decode_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1582:16: warning: ‘void stbi_hdr_to_ldr_scale(float)’ defined but not used [-Wunused-function]
 1582 | STBIDEF void   stbi_hdr_to_ldr_scale(float scale) { stbi__h2l_scale_i = 1/scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1581:16: warning: ‘void stbi_hdr_to_ldr_gamma(float)’ defined but not used [-Wunused-function]
 1581 | STBIDEF void   stbi_hdr_to_ldr_gamma(float gamma) { stbi__h2l_gamma_i = 1/gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1576:16: warning: ‘void stbi_ldr_to_hdr_scale(float)’ defined but not used [-Wunused-function]
 1576 | STBIDEF void   stbi_ldr_to_hdr_scale(float scale) { stbi__l2h_scale = scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1575:16: warning: ‘void stbi_ldr_to_hdr_gamma(float)’ defined but not used [-Wunused-function]
 1575 | STBIDEF void   stbi_ldr_to_hdr_gamma(float gamma) { stbi__l2h_gamma = gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1559:18: warning: ‘int stbi_is_hdr_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 1559 | STBIDEF int      stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1531:18: warning: ‘int stbi_is_hdr(const char*)’ defined but not used [-Wunused-function]
 1531 | STBIDEF int      stbi_is_hdr          (char const *filename)
      |                  ^~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1517:13: warning: ‘int stbi_is_hdr_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 1517 | STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1493:16: warning: ‘float* stbi_loadf(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1493 | STBIDEF float *stbi_loadf(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1485:16: warning: ‘float* stbi_loadf_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1485 | STBIDEF float *stbi_loadf_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1478:16: warning: ‘float* stbi_loadf_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1478 | STBIDEF float *stbi_loadf_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1444:18: warning: ‘stbi_uc* stbi_load_gif_from_memory(const stbi_uc*, int, int**, int*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1444 | STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1436:18: warning: ‘stbi_uc* stbi_load_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1436 | STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1429:18: warning: ‘stbi_uc* stbi_load_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1429 | STBIDEF stbi_uc *stbi_load_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1422:18: warning: ‘stbi_us* stbi_load_16_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1422 | STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1415:18: warning: ‘stbi_us* stbi_load_16_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1415 | STBIDEF stbi_us *stbi_load_16_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1402:18: warning: ‘stbi_us* stbi_load_16(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1402 | STBIDEF stbi_us *stbi_load_16(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1126:14: warning: ‘void stbi_set_flip_vertically_on_load_thread(int)’ defined but not used [-Wunused-function]
 1126 | STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1116:14: warning: ‘void stbi_set_flip_vertically_on_load(int)’ defined but not used [-Wunused-function]
 1116 | STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
g++ -std=gnu++17 -I"/usr/include/R" -DNDEBUG  -I'/usr/local/lib/R/library/Rcpp/include' -I'/usr/local/lib/R/library/RcppArmadillo/include' -I'/usr/local/lib/R/library/RcppEnsmallen/include' -I/usr/local/include   -I. -I../inst/include -fopenmp -fpic  -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer    -c hoeffding_tree.cpp -o hoeffding_tree.o
In file included from ../inst/include/mlpack/core/stb/stb.hpp:80,
                 from ../inst/include/mlpack/core.hpp:38,
                 from ../inst/include/mlpack/methods/hoeffding_trees/hoeffding_tree_main.cpp:12,
                 from hoeffding_tree.cpp:9:
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1607:14: warning: ‘int stbi_write_jpg_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1607 | STBIWDEF int stbi_write_jpg_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int quality)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1231:14: warning: ‘int stbi_write_png_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1231 | STBIWDEF int stbi_write_png_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int stride_bytes)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:787:14: warning: ‘int stbi_write_hdr_to_func(void (*)(void*, void*, int), void*, int, int, int, const float*)’ defined but not used [-Wunused-function]
  787 | STBIWDEF int stbi_write_hdr_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const float *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:611:14: warning: ‘int stbi_write_tga_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  611 | STBIWDEF int stbi_write_tga_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:512:14: warning: ‘int stbi_write_bmp_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  512 | STBIWDEF int stbi_write_bmp_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:262:15: warning: ‘void stbi_flip_vertically_on_write(int)’ defined but not used [-Wunused-function]
  262 | STBIWDEF void stbi_flip_vertically_on_write(int flag)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ../inst/include/mlpack/core/stb/stb.hpp:79:
../inst/include/mlpack/core/stb/bundled/stb_image.h:7755:13: warning: ‘int stbi_is_16_bit_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 7755 | STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *c, void *user)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7748:13: warning: ‘int stbi_is_16_bit_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 7748 | STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7741:13: warning: ‘int stbi_info_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7741 | STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7734:13: warning: ‘int stbi_info_from_memory(const stbi_uc*, int, int*, int*, int*)’ defined but not used [-Wunused-function]
 7734 | STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7712:13: warning: ‘int stbi_is_16_bit(const char*)’ defined but not used [-Wunused-function]
 7712 | STBIDEF int stbi_is_16_bit(char const *filename)
      |             ^~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7691:13: warning: ‘int stbi_info(const char*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7691 | STBIDEF int stbi_info(char const *filename, int *x, int *y, int *comp)
      |             ^~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5019:14: warning: ‘void stbi_convert_iphone_png_to_rgb_thread(int)’ defined but not used [-Wunused-function]
 5019 | STBIDEF void stbi_convert_iphone_png_to_rgb_thread(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5013:14: warning: ‘void stbi_set_unpremultiply_on_load_thread(int)’ defined but not used [-Wunused-function]
 5013 | STBIDEF void stbi_set_unpremultiply_on_load_thread(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5001:14: warning: ‘void stbi_convert_iphone_png_to_rgb(int)’ defined but not used [-Wunused-function]
 5001 | STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4996:14: warning: ‘void stbi_set_unpremultiply_on_load(int)’ defined but not used [-Wunused-function]
 4996 | STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4584:13: warning: ‘int stbi_zlib_decode_noheader_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4584 | STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4568:15: warning: ‘char* stbi_zlib_decode_noheader_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4568 | STBIDEF char *stbi_zlib_decode_noheader_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4557:13: warning: ‘int stbi_zlib_decode_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4557 | STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, char const *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4536:15: warning: ‘char* stbi_zlib_decode_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4536 | STBIDEF char *stbi_zlib_decode_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1582:16: warning: ‘void stbi_hdr_to_ldr_scale(float)’ defined but not used [-Wunused-function]
 1582 | STBIDEF void   stbi_hdr_to_ldr_scale(float scale) { stbi__h2l_scale_i = 1/scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1581:16: warning: ‘void stbi_hdr_to_ldr_gamma(float)’ defined but not used [-Wunused-function]
 1581 | STBIDEF void   stbi_hdr_to_ldr_gamma(float gamma) { stbi__h2l_gamma_i = 1/gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1576:16: warning: ‘void stbi_ldr_to_hdr_scale(float)’ defined but not used [-Wunused-function]
 1576 | STBIDEF void   stbi_ldr_to_hdr_scale(float scale) { stbi__l2h_scale = scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1575:16: warning: ‘void stbi_ldr_to_hdr_gamma(float)’ defined but not used [-Wunused-function]
 1575 | STBIDEF void   stbi_ldr_to_hdr_gamma(float gamma) { stbi__l2h_gamma = gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1559:18: warning: ‘int stbi_is_hdr_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 1559 | STBIDEF int      stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1531:18: warning: ‘int stbi_is_hdr(const char*)’ defined but not used [-Wunused-function]
 1531 | STBIDEF int      stbi_is_hdr          (char const *filename)
      |                  ^~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1517:13: warning: ‘int stbi_is_hdr_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 1517 | STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1493:16: warning: ‘float* stbi_loadf(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1493 | STBIDEF float *stbi_loadf(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1485:16: warning: ‘float* stbi_loadf_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1485 | STBIDEF float *stbi_loadf_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1478:16: warning: ‘float* stbi_loadf_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1478 | STBIDEF float *stbi_loadf_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1444:18: warning: ‘stbi_uc* stbi_load_gif_from_memory(const stbi_uc*, int, int**, int*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1444 | STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1436:18: warning: ‘stbi_uc* stbi_load_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1436 | STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1429:18: warning: ‘stbi_uc* stbi_load_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1429 | STBIDEF stbi_uc *stbi_load_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1422:18: warning: ‘stbi_us* stbi_load_16_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1422 | STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1415:18: warning: ‘stbi_us* stbi_load_16_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1415 | STBIDEF stbi_us *stbi_load_16_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1402:18: warning: ‘stbi_us* stbi_load_16(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1402 | STBIDEF stbi_us *stbi_load_16(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1126:14: warning: ‘void stbi_set_flip_vertically_on_load_thread(int)’ defined but not used [-Wunused-function]
 1126 | STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1116:14: warning: ‘void stbi_set_flip_vertically_on_load(int)’ defined but not used [-Wunused-function]
 1116 | STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
g++ -std=gnu++17 -I"/usr/include/R" -DNDEBUG  -I'/usr/local/lib/R/library/Rcpp/include' -I'/usr/local/lib/R/library/RcppArmadillo/include' -I'/usr/local/lib/R/library/RcppEnsmallen/include' -I/usr/local/include   -I. -I../inst/include -fopenmp -fpic  -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer    -c image_converter.cpp -o image_converter.o
In file included from ../inst/include/mlpack/core/stb/stb.hpp:80,
                 from ../inst/include/mlpack/core.hpp:38,
                 from ../inst/include/mlpack/methods/preprocess/image_converter_main.cpp:13,
                 from image_converter.cpp:9:
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1607:14: warning: ‘int stbi_write_jpg_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1607 | STBIWDEF int stbi_write_jpg_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int quality)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1231:14: warning: ‘int stbi_write_png_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1231 | STBIWDEF int stbi_write_png_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int stride_bytes)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:787:14: warning: ‘int stbi_write_hdr_to_func(void (*)(void*, void*, int), void*, int, int, int, const float*)’ defined but not used [-Wunused-function]
  787 | STBIWDEF int stbi_write_hdr_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const float *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:611:14: warning: ‘int stbi_write_tga_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  611 | STBIWDEF int stbi_write_tga_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:512:14: warning: ‘int stbi_write_bmp_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  512 | STBIWDEF int stbi_write_bmp_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:262:15: warning: ‘void stbi_flip_vertically_on_write(int)’ defined but not used [-Wunused-function]
  262 | STBIWDEF void stbi_flip_vertically_on_write(int flag)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ../inst/include/mlpack/core/stb/stb.hpp:79:
../inst/include/mlpack/core/stb/bundled/stb_image.h:7755:13: warning: ‘int stbi_is_16_bit_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 7755 | STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *c, void *user)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7748:13: warning: ‘int stbi_is_16_bit_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 7748 | STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7741:13: warning: ‘int stbi_info_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7741 | STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7734:13: warning: ‘int stbi_info_from_memory(const stbi_uc*, int, int*, int*, int*)’ defined but not used [-Wunused-function]
 7734 | STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7712:13: warning: ‘int stbi_is_16_bit(const char*)’ defined but not used [-Wunused-function]
 7712 | STBIDEF int stbi_is_16_bit(char const *filename)
      |             ^~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7691:13: warning: ‘int stbi_info(const char*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7691 | STBIDEF int stbi_info(char const *filename, int *x, int *y, int *comp)
      |             ^~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5019:14: warning: ‘void stbi_convert_iphone_png_to_rgb_thread(int)’ defined but not used [-Wunused-function]
 5019 | STBIDEF void stbi_convert_iphone_png_to_rgb_thread(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5013:14: warning: ‘void stbi_set_unpremultiply_on_load_thread(int)’ defined but not used [-Wunused-function]
 5013 | STBIDEF void stbi_set_unpremultiply_on_load_thread(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5001:14: warning: ‘void stbi_convert_iphone_png_to_rgb(int)’ defined but not used [-Wunused-function]
 5001 | STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4996:14: warning: ‘void stbi_set_unpremultiply_on_load(int)’ defined but not used [-Wunused-function]
 4996 | STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4584:13: warning: ‘int stbi_zlib_decode_noheader_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4584 | STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4568:15: warning: ‘char* stbi_zlib_decode_noheader_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4568 | STBIDEF char *stbi_zlib_decode_noheader_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4557:13: warning: ‘int stbi_zlib_decode_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4557 | STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, char const *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4536:15: warning: ‘char* stbi_zlib_decode_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4536 | STBIDEF char *stbi_zlib_decode_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1582:16: warning: ‘void stbi_hdr_to_ldr_scale(float)’ defined but not used [-Wunused-function]
 1582 | STBIDEF void   stbi_hdr_to_ldr_scale(float scale) { stbi__h2l_scale_i = 1/scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1581:16: warning: ‘void stbi_hdr_to_ldr_gamma(float)’ defined but not used [-Wunused-function]
 1581 | STBIDEF void   stbi_hdr_to_ldr_gamma(float gamma) { stbi__h2l_gamma_i = 1/gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1576:16: warning: ‘void stbi_ldr_to_hdr_scale(float)’ defined but not used [-Wunused-function]
 1576 | STBIDEF void   stbi_ldr_to_hdr_scale(float scale) { stbi__l2h_scale = scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1575:16: warning: ‘void stbi_ldr_to_hdr_gamma(float)’ defined but not used [-Wunused-function]
 1575 | STBIDEF void   stbi_ldr_to_hdr_gamma(float gamma) { stbi__l2h_gamma = gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1559:18: warning: ‘int stbi_is_hdr_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 1559 | STBIDEF int      stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1531:18: warning: ‘int stbi_is_hdr(const char*)’ defined but not used [-Wunused-function]
 1531 | STBIDEF int      stbi_is_hdr          (char const *filename)
      |                  ^~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1517:13: warning: ‘int stbi_is_hdr_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 1517 | STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1493:16: warning: ‘float* stbi_loadf(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1493 | STBIDEF float *stbi_loadf(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1485:16: warning: ‘float* stbi_loadf_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1485 | STBIDEF float *stbi_loadf_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1478:16: warning: ‘float* stbi_loadf_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1478 | STBIDEF float *stbi_loadf_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1444:18: warning: ‘stbi_uc* stbi_load_gif_from_memory(const stbi_uc*, int, int**, int*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1444 | STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1436:18: warning: ‘stbi_uc* stbi_load_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1436 | STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1429:18: warning: ‘stbi_uc* stbi_load_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1429 | STBIDEF stbi_uc *stbi_load_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1422:18: warning: ‘stbi_us* stbi_load_16_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1422 | STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1415:18: warning: ‘stbi_us* stbi_load_16_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1415 | STBIDEF stbi_us *stbi_load_16_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1402:18: warning: ‘stbi_us* stbi_load_16(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1402 | STBIDEF stbi_us *stbi_load_16(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1126:14: warning: ‘void stbi_set_flip_vertically_on_load_thread(int)’ defined but not used [-Wunused-function]
 1126 | STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1116:14: warning: ‘void stbi_set_flip_vertically_on_load(int)’ defined but not used [-Wunused-function]
 1116 | STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
g++ -std=gnu++17 -I"/usr/include/R" -DNDEBUG  -I'/usr/local/lib/R/library/Rcpp/include' -I'/usr/local/lib/R/library/RcppArmadillo/include' -I'/usr/local/lib/R/library/RcppEnsmallen/include' -I/usr/local/include   -I. -I../inst/include -fopenmp -fpic  -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer    -c kde.cpp -o kde.o
In file included from ../inst/include/mlpack/core/stb/stb.hpp:80,
                 from ../inst/include/mlpack/core.hpp:38,
                 from ../inst/include/mlpack/methods/kde/kde_main.cpp:12,
                 from kde.cpp:9:
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1607:14: warning: ‘int stbi_write_jpg_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1607 | STBIWDEF int stbi_write_jpg_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int quality)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1231:14: warning: ‘int stbi_write_png_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1231 | STBIWDEF int stbi_write_png_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int stride_bytes)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:787:14: warning: ‘int stbi_write_hdr_to_func(void (*)(void*, void*, int), void*, int, int, int, const float*)’ defined but not used [-Wunused-function]
  787 | STBIWDEF int stbi_write_hdr_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const float *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:611:14: warning: ‘int stbi_write_tga_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  611 | STBIWDEF int stbi_write_tga_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:512:14: warning: ‘int stbi_write_bmp_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  512 | STBIWDEF int stbi_write_bmp_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:262:15: warning: ‘void stbi_flip_vertically_on_write(int)’ defined but not used [-Wunused-function]
  262 | STBIWDEF void stbi_flip_vertically_on_write(int flag)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ../inst/include/mlpack/core/stb/stb.hpp:79:
../inst/include/mlpack/core/stb/bundled/stb_image.h:7755:13: warning: ‘int stbi_is_16_bit_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 7755 | STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *c, void *user)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7748:13: warning: ‘int stbi_is_16_bit_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 7748 | STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7741:13: warning: ‘int stbi_info_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7741 | STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7734:13: warning: ‘int stbi_info_from_memory(const stbi_uc*, int, int*, int*, int*)’ defined but not used [-Wunused-function]
 7734 | STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7712:13: warning: ‘int stbi_is_16_bit(const char*)’ defined but not used [-Wunused-function]
 7712 | STBIDEF int stbi_is_16_bit(char const *filename)
      |             ^~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7691:13: warning: ‘int stbi_info(const char*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7691 | STBIDEF int stbi_info(char const *filename, int *x, int *y, int *comp)
      |             ^~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5019:14: warning: ‘void stbi_convert_iphone_png_to_rgb_thread(int)’ defined but not used [-Wunused-function]
 5019 | STBIDEF void stbi_convert_iphone_png_to_rgb_thread(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5013:14: warning: ‘void stbi_set_unpremultiply_on_load_thread(int)’ defined but not used [-Wunused-function]
 5013 | STBIDEF void stbi_set_unpremultiply_on_load_thread(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5001:14: warning: ‘void stbi_convert_iphone_png_to_rgb(int)’ defined but not used [-Wunused-function]
 5001 | STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4996:14: warning: ‘void stbi_set_unpremultiply_on_load(int)’ defined but not used [-Wunused-function]
 4996 | STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4584:13: warning: ‘int stbi_zlib_decode_noheader_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4584 | STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4568:15: warning: ‘char* stbi_zlib_decode_noheader_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4568 | STBIDEF char *stbi_zlib_decode_noheader_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4557:13: warning: ‘int stbi_zlib_decode_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4557 | STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, char const *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4536:15: warning: ‘char* stbi_zlib_decode_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4536 | STBIDEF char *stbi_zlib_decode_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1582:16: warning: ‘void stbi_hdr_to_ldr_scale(float)’ defined but not used [-Wunused-function]
 1582 | STBIDEF void   stbi_hdr_to_ldr_scale(float scale) { stbi__h2l_scale_i = 1/scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1581:16: warning: ‘void stbi_hdr_to_ldr_gamma(float)’ defined but not used [-Wunused-function]
 1581 | STBIDEF void   stbi_hdr_to_ldr_gamma(float gamma) { stbi__h2l_gamma_i = 1/gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1576:16: warning: ‘void stbi_ldr_to_hdr_scale(float)’ defined but not used [-Wunused-function]
 1576 | STBIDEF void   stbi_ldr_to_hdr_scale(float scale) { stbi__l2h_scale = scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1575:16: warning: ‘void stbi_ldr_to_hdr_gamma(float)’ defined but not used [-Wunused-function]
 1575 | STBIDEF void   stbi_ldr_to_hdr_gamma(float gamma) { stbi__l2h_gamma = gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1559:18: warning: ‘int stbi_is_hdr_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 1559 | STBIDEF int      stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1531:18: warning: ‘int stbi_is_hdr(const char*)’ defined but not used [-Wunused-function]
 1531 | STBIDEF int      stbi_is_hdr          (char const *filename)
      |                  ^~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1517:13: warning: ‘int stbi_is_hdr_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 1517 | STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1493:16: warning: ‘float* stbi_loadf(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1493 | STBIDEF float *stbi_loadf(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1485:16: warning: ‘float* stbi_loadf_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1485 | STBIDEF float *stbi_loadf_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1478:16: warning: ‘float* stbi_loadf_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1478 | STBIDEF float *stbi_loadf_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1444:18: warning: ‘stbi_uc* stbi_load_gif_from_memory(const stbi_uc*, int, int**, int*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1444 | STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1436:18: warning: ‘stbi_uc* stbi_load_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1436 | STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1429:18: warning: ‘stbi_uc* stbi_load_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1429 | STBIDEF stbi_uc *stbi_load_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1422:18: warning: ‘stbi_us* stbi_load_16_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1422 | STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1415:18: warning: ‘stbi_us* stbi_load_16_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1415 | STBIDEF stbi_us *stbi_load_16_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1402:18: warning: ‘stbi_us* stbi_load_16(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1402 | STBIDEF stbi_us *stbi_load_16(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1126:14: warning: ‘void stbi_set_flip_vertically_on_load_thread(int)’ defined but not used [-Wunused-function]
 1126 | STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1116:14: warning: ‘void stbi_set_flip_vertically_on_load(int)’ defined but not used [-Wunused-function]
 1116 | STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
g++ -std=gnu++17 -I"/usr/include/R" -DNDEBUG  -I'/usr/local/lib/R/library/Rcpp/include' -I'/usr/local/lib/R/library/RcppArmadillo/include' -I'/usr/local/lib/R/library/RcppEnsmallen/include' -I/usr/local/include   -I. -I../inst/include -fopenmp -fpic  -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer    -c kernel_pca.cpp -o kernel_pca.o
In file included from ../inst/include/mlpack/core/stb/stb.hpp:80,
                 from ../inst/include/mlpack/core.hpp:38,
                 from ../inst/include/mlpack/methods/kernel_pca/kernel_pca_main.cpp:12,
                 from kernel_pca.cpp:9:
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1607:14: warning: ‘int stbi_write_jpg_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1607 | STBIWDEF int stbi_write_jpg_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int quality)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1231:14: warning: ‘int stbi_write_png_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1231 | STBIWDEF int stbi_write_png_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int stride_bytes)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:787:14: warning: ‘int stbi_write_hdr_to_func(void (*)(void*, void*, int), void*, int, int, int, const float*)’ defined but not used [-Wunused-function]
  787 | STBIWDEF int stbi_write_hdr_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const float *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:611:14: warning: ‘int stbi_write_tga_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  611 | STBIWDEF int stbi_write_tga_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:512:14: warning: ‘int stbi_write_bmp_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  512 | STBIWDEF int stbi_write_bmp_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:262:15: warning: ‘void stbi_flip_vertically_on_write(int)’ defined but not used [-Wunused-function]
  262 | STBIWDEF void stbi_flip_vertically_on_write(int flag)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ../inst/include/mlpack/core/stb/stb.hpp:79:
../inst/include/mlpack/core/stb/bundled/stb_image.h:7755:13: warning: ‘int stbi_is_16_bit_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 7755 | STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *c, void *user)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7748:13: warning: ‘int stbi_is_16_bit_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 7748 | STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7741:13: warning: ‘int stbi_info_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7741 | STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7734:13: warning: ‘int stbi_info_from_memory(const stbi_uc*, int, int*, int*, int*)’ defined but not used [-Wunused-function]
 7734 | STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7712:13: warning: ‘int stbi_is_16_bit(const char*)’ defined but not used [-Wunused-function]
 7712 | STBIDEF int stbi_is_16_bit(char const *filename)
      |             ^~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7691:13: warning: ‘int stbi_info(const char*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7691 | STBIDEF int stbi_info(char const *filename, int *x, int *y, int *comp)
      |             ^~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5019:14: warning: ‘void stbi_convert_iphone_png_to_rgb_thread(int)’ defined but not used [-Wunused-function]
 5019 | STBIDEF void stbi_convert_iphone_png_to_rgb_thread(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5013:14: warning: ‘void stbi_set_unpremultiply_on_load_thread(int)’ defined but not used [-Wunused-function]
 5013 | STBIDEF void stbi_set_unpremultiply_on_load_thread(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5001:14: warning: ‘void stbi_convert_iphone_png_to_rgb(int)’ defined but not used [-Wunused-function]
 5001 | STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4996:14: warning: ‘void stbi_set_unpremultiply_on_load(int)’ defined but not used [-Wunused-function]
 4996 | STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4584:13: warning: ‘int stbi_zlib_decode_noheader_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4584 | STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4568:15: warning: ‘char* stbi_zlib_decode_noheader_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4568 | STBIDEF char *stbi_zlib_decode_noheader_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4557:13: warning: ‘int stbi_zlib_decode_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4557 | STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, char const *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4536:15: warning: ‘char* stbi_zlib_decode_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4536 | STBIDEF char *stbi_zlib_decode_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1582:16: warning: ‘void stbi_hdr_to_ldr_scale(float)’ defined but not used [-Wunused-function]
 1582 | STBIDEF void   stbi_hdr_to_ldr_scale(float scale) { stbi__h2l_scale_i = 1/scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1581:16: warning: ‘void stbi_hdr_to_ldr_gamma(float)’ defined but not used [-Wunused-function]
 1581 | STBIDEF void   stbi_hdr_to_ldr_gamma(float gamma) { stbi__h2l_gamma_i = 1/gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1576:16: warning: ‘void stbi_ldr_to_hdr_scale(float)’ defined but not used [-Wunused-function]
 1576 | STBIDEF void   stbi_ldr_to_hdr_scale(float scale) { stbi__l2h_scale = scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1575:16: warning: ‘void stbi_ldr_to_hdr_gamma(float)’ defined but not used [-Wunused-function]
 1575 | STBIDEF void   stbi_ldr_to_hdr_gamma(float gamma) { stbi__l2h_gamma = gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1559:18: warning: ‘int stbi_is_hdr_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 1559 | STBIDEF int      stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1531:18: warning: ‘int stbi_is_hdr(const char*)’ defined but not used [-Wunused-function]
 1531 | STBIDEF int      stbi_is_hdr          (char const *filename)
      |                  ^~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1517:13: warning: ‘int stbi_is_hdr_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 1517 | STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1493:16: warning: ‘float* stbi_loadf(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1493 | STBIDEF float *stbi_loadf(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1485:16: warning: ‘float* stbi_loadf_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1485 | STBIDEF float *stbi_loadf_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1478:16: warning: ‘float* stbi_loadf_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1478 | STBIDEF float *stbi_loadf_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1444:18: warning: ‘stbi_uc* stbi_load_gif_from_memory(const stbi_uc*, int, int**, int*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1444 | STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1436:18: warning: ‘stbi_uc* stbi_load_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1436 | STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1429:18: warning: ‘stbi_uc* stbi_load_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1429 | STBIDEF stbi_uc *stbi_load_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1422:18: warning: ‘stbi_us* stbi_load_16_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1422 | STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1415:18: warning: ‘stbi_us* stbi_load_16_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1415 | STBIDEF stbi_us *stbi_load_16_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1402:18: warning: ‘stbi_us* stbi_load_16(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1402 | STBIDEF stbi_us *stbi_load_16(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1126:14: warning: ‘void stbi_set_flip_vertically_on_load_thread(int)’ defined but not used [-Wunused-function]
 1126 | STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1116:14: warning: ‘void stbi_set_flip_vertically_on_load(int)’ defined but not used [-Wunused-function]
 1116 | STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
g++ -std=gnu++17 -I"/usr/include/R" -DNDEBUG  -I'/usr/local/lib/R/library/Rcpp/include' -I'/usr/local/lib/R/library/RcppArmadillo/include' -I'/usr/local/lib/R/library/RcppEnsmallen/include' -I/usr/local/include   -I. -I../inst/include -fopenmp -fpic  -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer    -c kfn.cpp -o kfn.o
In file included from ../inst/include/mlpack/core/stb/stb.hpp:80,
                 from ../inst/include/mlpack/core.hpp:38,
                 from ../inst/include/mlpack/methods/neighbor_search/kfn_main.cpp:13,
                 from kfn.cpp:9:
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1607:14: warning: ‘int stbi_write_jpg_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1607 | STBIWDEF int stbi_write_jpg_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int quality)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1231:14: warning: ‘int stbi_write_png_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1231 | STBIWDEF int stbi_write_png_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int stride_bytes)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:787:14: warning: ‘int stbi_write_hdr_to_func(void (*)(void*, void*, int), void*, int, int, int, const float*)’ defined but not used [-Wunused-function]
  787 | STBIWDEF int stbi_write_hdr_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const float *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:611:14: warning: ‘int stbi_write_tga_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  611 | STBIWDEF int stbi_write_tga_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:512:14: warning: ‘int stbi_write_bmp_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  512 | STBIWDEF int stbi_write_bmp_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:262:15: warning: ‘void stbi_flip_vertically_on_write(int)’ defined but not used [-Wunused-function]
  262 | STBIWDEF void stbi_flip_vertically_on_write(int flag)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ../inst/include/mlpack/core/stb/stb.hpp:79:
../inst/include/mlpack/core/stb/bundled/stb_image.h:7755:13: warning: ‘int stbi_is_16_bit_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 7755 | STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *c, void *user)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7748:13: warning: ‘int stbi_is_16_bit_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 7748 | STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7741:13: warning: ‘int stbi_info_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7741 | STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7734:13: warning: ‘int stbi_info_from_memory(const stbi_uc*, int, int*, int*, int*)’ defined but not used [-Wunused-function]
 7734 | STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7712:13: warning: ‘int stbi_is_16_bit(const char*)’ defined but not used [-Wunused-function]
 7712 | STBIDEF int stbi_is_16_bit(char const *filename)
      |             ^~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7691:13: warning: ‘int stbi_info(const char*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7691 | STBIDEF int stbi_info(char const *filename, int *x, int *y, int *comp)
      |             ^~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5019:14: warning: ‘void stbi_convert_iphone_png_to_rgb_thread(int)’ defined but not used [-Wunused-function]
 5019 | STBIDEF void stbi_convert_iphone_png_to_rgb_thread(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5013:14: warning: ‘void stbi_set_unpremultiply_on_load_thread(int)’ defined but not used [-Wunused-function]
 5013 | STBIDEF void stbi_set_unpremultiply_on_load_thread(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5001:14: warning: ‘void stbi_convert_iphone_png_to_rgb(int)’ defined but not used [-Wunused-function]
 5001 | STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4996:14: warning: ‘void stbi_set_unpremultiply_on_load(int)’ defined but not used [-Wunused-function]
 4996 | STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4584:13: warning: ‘int stbi_zlib_decode_noheader_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4584 | STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4568:15: warning: ‘char* stbi_zlib_decode_noheader_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4568 | STBIDEF char *stbi_zlib_decode_noheader_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4557:13: warning: ‘int stbi_zlib_decode_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4557 | STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, char const *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4536:15: warning: ‘char* stbi_zlib_decode_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4536 | STBIDEF char *stbi_zlib_decode_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1582:16: warning: ‘void stbi_hdr_to_ldr_scale(float)’ defined but not used [-Wunused-function]
 1582 | STBIDEF void   stbi_hdr_to_ldr_scale(float scale) { stbi__h2l_scale_i = 1/scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1581:16: warning: ‘void stbi_hdr_to_ldr_gamma(float)’ defined but not used [-Wunused-function]
 1581 | STBIDEF void   stbi_hdr_to_ldr_gamma(float gamma) { stbi__h2l_gamma_i = 1/gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1576:16: warning: ‘void stbi_ldr_to_hdr_scale(float)’ defined but not used [-Wunused-function]
 1576 | STBIDEF void   stbi_ldr_to_hdr_scale(float scale) { stbi__l2h_scale = scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1575:16: warning: ‘void stbi_ldr_to_hdr_gamma(float)’ defined but not used [-Wunused-function]
 1575 | STBIDEF void   stbi_ldr_to_hdr_gamma(float gamma) { stbi__l2h_gamma = gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1559:18: warning: ‘int stbi_is_hdr_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 1559 | STBIDEF int      stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1531:18: warning: ‘int stbi_is_hdr(const char*)’ defined but not used [-Wunused-function]
 1531 | STBIDEF int      stbi_is_hdr          (char const *filename)
      |                  ^~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1517:13: warning: ‘int stbi_is_hdr_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 1517 | STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1493:16: warning: ‘float* stbi_loadf(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1493 | STBIDEF float *stbi_loadf(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1485:16: warning: ‘float* stbi_loadf_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1485 | STBIDEF float *stbi_loadf_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1478:16: warning: ‘float* stbi_loadf_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1478 | STBIDEF float *stbi_loadf_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1444:18: warning: ‘stbi_uc* stbi_load_gif_from_memory(const stbi_uc*, int, int**, int*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1444 | STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1436:18: warning: ‘stbi_uc* stbi_load_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1436 | STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1429:18: warning: ‘stbi_uc* stbi_load_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1429 | STBIDEF stbi_uc *stbi_load_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1422:18: warning: ‘stbi_us* stbi_load_16_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1422 | STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1415:18: warning: ‘stbi_us* stbi_load_16_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1415 | STBIDEF stbi_us *stbi_load_16_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1402:18: warning: ‘stbi_us* stbi_load_16(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1402 | STBIDEF stbi_us *stbi_load_16(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1126:14: warning: ‘void stbi_set_flip_vertically_on_load_thread(int)’ defined but not used [-Wunused-function]
 1126 | STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1116:14: warning: ‘void stbi_set_flip_vertically_on_load(int)’ defined but not used [-Wunused-function]
 1116 | STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
g++ -std=gnu++17 -I"/usr/include/R" -DNDEBUG  -I'/usr/local/lib/R/library/Rcpp/include' -I'/usr/local/lib/R/library/RcppArmadillo/include' -I'/usr/local/lib/R/library/RcppEnsmallen/include' -I/usr/local/include   -I. -I../inst/include -fopenmp -fpic  -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer    -c kmeans.cpp -o kmeans.o
In file included from ../inst/include/mlpack/core/stb/stb.hpp:80,
                 from ../inst/include/mlpack/core.hpp:38,
                 from ../inst/include/mlpack/methods/kmeans/kmeans_main.cpp:12,
                 from kmeans.cpp:9:
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1607:14: warning: ‘int stbi_write_jpg_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1607 | STBIWDEF int stbi_write_jpg_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int quality)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1231:14: warning: ‘int stbi_write_png_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1231 | STBIWDEF int stbi_write_png_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int stride_bytes)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:787:14: warning: ‘int stbi_write_hdr_to_func(void (*)(void*, void*, int), void*, int, int, int, const float*)’ defined but not used [-Wunused-function]
  787 | STBIWDEF int stbi_write_hdr_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const float *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:611:14: warning: ‘int stbi_write_tga_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  611 | STBIWDEF int stbi_write_tga_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:512:14: warning: ‘int stbi_write_bmp_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  512 | STBIWDEF int stbi_write_bmp_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:262:15: warning: ‘void stbi_flip_vertically_on_write(int)’ defined but not used [-Wunused-function]
  262 | STBIWDEF void stbi_flip_vertically_on_write(int flag)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ../inst/include/mlpack/core/stb/stb.hpp:79:
../inst/include/mlpack/core/stb/bundled/stb_image.h:7755:13: warning: ‘int stbi_is_16_bit_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 7755 | STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *c, void *user)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7748:13: warning: ‘int stbi_is_16_bit_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 7748 | STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7741:13: warning: ‘int stbi_info_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7741 | STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7734:13: warning: ‘int stbi_info_from_memory(const stbi_uc*, int, int*, int*, int*)’ defined but not used [-Wunused-function]
 7734 | STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7712:13: warning: ‘int stbi_is_16_bit(const char*)’ defined but not used [-Wunused-function]
 7712 | STBIDEF int stbi_is_16_bit(char const *filename)
      |             ^~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7691:13: warning: ‘int stbi_info(const char*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7691 | STBIDEF int stbi_info(char const *filename, int *x, int *y, int *comp)
      |             ^~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5019:14: warning: ‘void stbi_convert_iphone_png_to_rgb_thread(int)’ defined but not used [-Wunused-function]
 5019 | STBIDEF void stbi_convert_iphone_png_to_rgb_thread(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5013:14: warning: ‘void stbi_set_unpremultiply_on_load_thread(int)’ defined but not used [-Wunused-function]
 5013 | STBIDEF void stbi_set_unpremultiply_on_load_thread(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5001:14: warning: ‘void stbi_convert_iphone_png_to_rgb(int)’ defined but not used [-Wunused-function]
 5001 | STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4996:14: warning: ‘void stbi_set_unpremultiply_on_load(int)’ defined but not used [-Wunused-function]
 4996 | STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4584:13: warning: ‘int stbi_zlib_decode_noheader_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4584 | STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4568:15: warning: ‘char* stbi_zlib_decode_noheader_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4568 | STBIDEF char *stbi_zlib_decode_noheader_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4557:13: warning: ‘int stbi_zlib_decode_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4557 | STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, char const *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4536:15: warning: ‘char* stbi_zlib_decode_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4536 | STBIDEF char *stbi_zlib_decode_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1582:16: warning: ‘void stbi_hdr_to_ldr_scale(float)’ defined but not used [-Wunused-function]
 1582 | STBIDEF void   stbi_hdr_to_ldr_scale(float scale) { stbi__h2l_scale_i = 1/scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1581:16: warning: ‘void stbi_hdr_to_ldr_gamma(float)’ defined but not used [-Wunused-function]
 1581 | STBIDEF void   stbi_hdr_to_ldr_gamma(float gamma) { stbi__h2l_gamma_i = 1/gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1576:16: warning: ‘void stbi_ldr_to_hdr_scale(float)’ defined but not used [-Wunused-function]
 1576 | STBIDEF void   stbi_ldr_to_hdr_scale(float scale) { stbi__l2h_scale = scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1575:16: warning: ‘void stbi_ldr_to_hdr_gamma(float)’ defined but not used [-Wunused-function]
 1575 | STBIDEF void   stbi_ldr_to_hdr_gamma(float gamma) { stbi__l2h_gamma = gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1559:18: warning: ‘int stbi_is_hdr_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 1559 | STBIDEF int      stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1531:18: warning: ‘int stbi_is_hdr(const char*)’ defined but not used [-Wunused-function]
 1531 | STBIDEF int      stbi_is_hdr          (char const *filename)
      |                  ^~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1517:13: warning: ‘int stbi_is_hdr_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 1517 | STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1493:16: warning: ‘float* stbi_loadf(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1493 | STBIDEF float *stbi_loadf(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1485:16: warning: ‘float* stbi_loadf_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1485 | STBIDEF float *stbi_loadf_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1478:16: warning: ‘float* stbi_loadf_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1478 | STBIDEF float *stbi_loadf_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1444:18: warning: ‘stbi_uc* stbi_load_gif_from_memory(const stbi_uc*, int, int**, int*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1444 | STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1436:18: warning: ‘stbi_uc* stbi_load_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1436 | STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1429:18: warning: ‘stbi_uc* stbi_load_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1429 | STBIDEF stbi_uc *stbi_load_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1422:18: warning: ‘stbi_us* stbi_load_16_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1422 | STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1415:18: warning: ‘stbi_us* stbi_load_16_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1415 | STBIDEF stbi_us *stbi_load_16_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1402:18: warning: ‘stbi_us* stbi_load_16(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1402 | STBIDEF stbi_us *stbi_load_16(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1126:14: warning: ‘void stbi_set_flip_vertically_on_load_thread(int)’ defined but not used [-Wunused-function]
 1126 | STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1116:14: warning: ‘void stbi_set_flip_vertically_on_load(int)’ defined but not used [-Wunused-function]
 1116 | STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
g++ -std=gnu++17 -I"/usr/include/R" -DNDEBUG  -I'/usr/local/lib/R/library/Rcpp/include' -I'/usr/local/lib/R/library/RcppArmadillo/include' -I'/usr/local/lib/R/library/RcppEnsmallen/include' -I/usr/local/include   -I. -I../inst/include -fopenmp -fpic  -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer    -c knn.cpp -o knn.o
In file included from ../inst/include/mlpack/core/stb/stb.hpp:80,
                 from ../inst/include/mlpack/core.hpp:38,
                 from ../inst/include/mlpack/methods/neighbor_search/knn_main.cpp:13,
                 from knn.cpp:9:
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1607:14: warning: ‘int stbi_write_jpg_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1607 | STBIWDEF int stbi_write_jpg_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int quality)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1231:14: warning: ‘int stbi_write_png_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1231 | STBIWDEF int stbi_write_png_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int stride_bytes)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:787:14: warning: ‘int stbi_write_hdr_to_func(void (*)(void*, void*, int), void*, int, int, int, const float*)’ defined but not used [-Wunused-function]
  787 | STBIWDEF int stbi_write_hdr_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const float *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:611:14: warning: ‘int stbi_write_tga_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  611 | STBIWDEF int stbi_write_tga_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:512:14: warning: ‘int stbi_write_bmp_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  512 | STBIWDEF int stbi_write_bmp_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:262:15: warning: ‘void stbi_flip_vertically_on_write(int)’ defined but not used [-Wunused-function]
  262 | STBIWDEF void stbi_flip_vertically_on_write(int flag)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ../inst/include/mlpack/core/stb/stb.hpp:79:
../inst/include/mlpack/core/stb/bundled/stb_image.h:7755:13: warning: ‘int stbi_is_16_bit_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 7755 | STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *c, void *user)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7748:13: warning: ‘int stbi_is_16_bit_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 7748 | STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7741:13: warning: ‘int stbi_info_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7741 | STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7734:13: warning: ‘int stbi_info_from_memory(const stbi_uc*, int, int*, int*, int*)’ defined but not used [-Wunused-function]
 7734 | STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7712:13: warning: ‘int stbi_is_16_bit(const char*)’ defined but not used [-Wunused-function]
 7712 | STBIDEF int stbi_is_16_bit(char const *filename)
      |             ^~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7691:13: warning: ‘int stbi_info(const char*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7691 | STBIDEF int stbi_info(char const *filename, int *x, int *y, int *comp)
      |             ^~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5019:14: warning: ‘void stbi_convert_iphone_png_to_rgb_thread(int)’ defined but not used [-Wunused-function]
 5019 | STBIDEF void stbi_convert_iphone_png_to_rgb_thread(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5013:14: warning: ‘void stbi_set_unpremultiply_on_load_thread(int)’ defined but not used [-Wunused-function]
 5013 | STBIDEF void stbi_set_unpremultiply_on_load_thread(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5001:14: warning: ‘void stbi_convert_iphone_png_to_rgb(int)’ defined but not used [-Wunused-function]
 5001 | STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4996:14: warning: ‘void stbi_set_unpremultiply_on_load(int)’ defined but not used [-Wunused-function]
 4996 | STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4584:13: warning: ‘int stbi_zlib_decode_noheader_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4584 | STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4568:15: warning: ‘char* stbi_zlib_decode_noheader_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4568 | STBIDEF char *stbi_zlib_decode_noheader_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4557:13: warning: ‘int stbi_zlib_decode_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4557 | STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, char const *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4536:15: warning: ‘char* stbi_zlib_decode_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4536 | STBIDEF char *stbi_zlib_decode_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1582:16: warning: ‘void stbi_hdr_to_ldr_scale(float)’ defined but not used [-Wunused-function]
 1582 | STBIDEF void   stbi_hdr_to_ldr_scale(float scale) { stbi__h2l_scale_i = 1/scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1581:16: warning: ‘void stbi_hdr_to_ldr_gamma(float)’ defined but not used [-Wunused-function]
 1581 | STBIDEF void   stbi_hdr_to_ldr_gamma(float gamma) { stbi__h2l_gamma_i = 1/gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1576:16: warning: ‘void stbi_ldr_to_hdr_scale(float)’ defined but not used [-Wunused-function]
 1576 | STBIDEF void   stbi_ldr_to_hdr_scale(float scale) { stbi__l2h_scale = scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1575:16: warning: ‘void stbi_ldr_to_hdr_gamma(float)’ defined but not used [-Wunused-function]
 1575 | STBIDEF void   stbi_ldr_to_hdr_gamma(float gamma) { stbi__l2h_gamma = gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1559:18: warning: ‘int stbi_is_hdr_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 1559 | STBIDEF int      stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1531:18: warning: ‘int stbi_is_hdr(const char*)’ defined but not used [-Wunused-function]
 1531 | STBIDEF int      stbi_is_hdr          (char const *filename)
      |                  ^~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1517:13: warning: ‘int stbi_is_hdr_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 1517 | STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1493:16: warning: ‘float* stbi_loadf(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1493 | STBIDEF float *stbi_loadf(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1485:16: warning: ‘float* stbi_loadf_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1485 | STBIDEF float *stbi_loadf_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1478:16: warning: ‘float* stbi_loadf_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1478 | STBIDEF float *stbi_loadf_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1444:18: warning: ‘stbi_uc* stbi_load_gif_from_memory(const stbi_uc*, int, int**, int*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1444 | STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1436:18: warning: ‘stbi_uc* stbi_load_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1436 | STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1429:18: warning: ‘stbi_uc* stbi_load_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1429 | STBIDEF stbi_uc *stbi_load_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1422:18: warning: ‘stbi_us* stbi_load_16_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1422 | STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1415:18: warning: ‘stbi_us* stbi_load_16_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1415 | STBIDEF stbi_us *stbi_load_16_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1402:18: warning: ‘stbi_us* stbi_load_16(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1402 | STBIDEF stbi_us *stbi_load_16(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1126:14: warning: ‘void stbi_set_flip_vertically_on_load_thread(int)’ defined but not used [-Wunused-function]
 1126 | STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1116:14: warning: ‘void stbi_set_flip_vertically_on_load(int)’ defined but not used [-Wunused-function]
 1116 | STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
g++ -std=gnu++17 -I"/usr/include/R" -DNDEBUG  -I'/usr/local/lib/R/library/Rcpp/include' -I'/usr/local/lib/R/library/RcppArmadillo/include' -I'/usr/local/lib/R/library/RcppEnsmallen/include' -I/usr/local/include   -I. -I../inst/include -fopenmp -fpic  -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer    -c krann.cpp -o krann.o
In file included from ../inst/include/mlpack/core/stb/stb.hpp:80,
                 from ../inst/include/mlpack/core.hpp:38,
                 from ../inst/include/mlpack/methods/rann/krann_main.cpp:13,
                 from krann.cpp:9:
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1607:14: warning: ‘int stbi_write_jpg_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1607 | STBIWDEF int stbi_write_jpg_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int quality)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1231:14: warning: ‘int stbi_write_png_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1231 | STBIWDEF int stbi_write_png_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int stride_bytes)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:787:14: warning: ‘int stbi_write_hdr_to_func(void (*)(void*, void*, int), void*, int, int, int, const float*)’ defined but not used [-Wunused-function]
  787 | STBIWDEF int stbi_write_hdr_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const float *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:611:14: warning: ‘int stbi_write_tga_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  611 | STBIWDEF int stbi_write_tga_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:512:14: warning: ‘int stbi_write_bmp_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  512 | STBIWDEF int stbi_write_bmp_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:262:15: warning: ‘void stbi_flip_vertically_on_write(int)’ defined but not used [-Wunused-function]
  262 | STBIWDEF void stbi_flip_vertically_on_write(int flag)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ../inst/include/mlpack/core/stb/stb.hpp:79:
../inst/include/mlpack/core/stb/bundled/stb_image.h:7755:13: warning: ‘int stbi_is_16_bit_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 7755 | STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *c, void *user)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7748:13: warning: ‘int stbi_is_16_bit_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 7748 | STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7741:13: warning: ‘int stbi_info_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7741 | STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7734:13: warning: ‘int stbi_info_from_memory(const stbi_uc*, int, int*, int*, int*)’ defined but not used [-Wunused-function]
 7734 | STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7712:13: warning: ‘int stbi_is_16_bit(const char*)’ defined but not used [-Wunused-function]
 7712 | STBIDEF int stbi_is_16_bit(char const *filename)
      |             ^~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7691:13: warning: ‘int stbi_info(const char*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7691 | STBIDEF int stbi_info(char const *filename, int *x, int *y, int *comp)
      |             ^~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5019:14: warning: ‘void stbi_convert_iphone_png_to_rgb_thread(int)’ defined but not used [-Wunused-function]
 5019 | STBIDEF void stbi_convert_iphone_png_to_rgb_thread(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5013:14: warning: ‘void stbi_set_unpremultiply_on_load_thread(int)’ defined but not used [-Wunused-function]
 5013 | STBIDEF void stbi_set_unpremultiply_on_load_thread(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5001:14: warning: ‘void stbi_convert_iphone_png_to_rgb(int)’ defined but not used [-Wunused-function]
 5001 | STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4996:14: warning: ‘void stbi_set_unpremultiply_on_load(int)’ defined but not used [-Wunused-function]
 4996 | STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4584:13: warning: ‘int stbi_zlib_decode_noheader_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4584 | STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4568:15: warning: ‘char* stbi_zlib_decode_noheader_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4568 | STBIDEF char *stbi_zlib_decode_noheader_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4557:13: warning: ‘int stbi_zlib_decode_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4557 | STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, char const *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4536:15: warning: ‘char* stbi_zlib_decode_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4536 | STBIDEF char *stbi_zlib_decode_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1582:16: warning: ‘void stbi_hdr_to_ldr_scale(float)’ defined but not used [-Wunused-function]
 1582 | STBIDEF void   stbi_hdr_to_ldr_scale(float scale) { stbi__h2l_scale_i = 1/scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1581:16: warning: ‘void stbi_hdr_to_ldr_gamma(float)’ defined but not used [-Wunused-function]
 1581 | STBIDEF void   stbi_hdr_to_ldr_gamma(float gamma) { stbi__h2l_gamma_i = 1/gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1576:16: warning: ‘void stbi_ldr_to_hdr_scale(float)’ defined but not used [-Wunused-function]
 1576 | STBIDEF void   stbi_ldr_to_hdr_scale(float scale) { stbi__l2h_scale = scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1575:16: warning: ‘void stbi_ldr_to_hdr_gamma(float)’ defined but not used [-Wunused-function]
 1575 | STBIDEF void   stbi_ldr_to_hdr_gamma(float gamma) { stbi__l2h_gamma = gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1559:18: warning: ‘int stbi_is_hdr_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 1559 | STBIDEF int      stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1531:18: warning: ‘int stbi_is_hdr(const char*)’ defined but not used [-Wunused-function]
 1531 | STBIDEF int      stbi_is_hdr          (char const *filename)
      |                  ^~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1517:13: warning: ‘int stbi_is_hdr_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 1517 | STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1493:16: warning: ‘float* stbi_loadf(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1493 | STBIDEF float *stbi_loadf(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1485:16: warning: ‘float* stbi_loadf_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1485 | STBIDEF float *stbi_loadf_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1478:16: warning: ‘float* stbi_loadf_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1478 | STBIDEF float *stbi_loadf_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1444:18: warning: ‘stbi_uc* stbi_load_gif_from_memory(const stbi_uc*, int, int**, int*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1444 | STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1436:18: warning: ‘stbi_uc* stbi_load_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1436 | STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1429:18: warning: ‘stbi_uc* stbi_load_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1429 | STBIDEF stbi_uc *stbi_load_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1422:18: warning: ‘stbi_us* stbi_load_16_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1422 | STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1415:18: warning: ‘stbi_us* stbi_load_16_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1415 | STBIDEF stbi_us *stbi_load_16_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1402:18: warning: ‘stbi_us* stbi_load_16(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1402 | STBIDEF stbi_us *stbi_load_16(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1126:14: warning: ‘void stbi_set_flip_vertically_on_load_thread(int)’ defined but not used [-Wunused-function]
 1126 | STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1116:14: warning: ‘void stbi_set_flip_vertically_on_load(int)’ defined but not used [-Wunused-function]
 1116 | STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
g++ -std=gnu++17 -I"/usr/include/R" -DNDEBUG  -I'/usr/local/lib/R/library/Rcpp/include' -I'/usr/local/lib/R/library/RcppArmadillo/include' -I'/usr/local/lib/R/library/RcppEnsmallen/include' -I/usr/local/include   -I. -I../inst/include -fopenmp -fpic  -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer    -c lars.cpp -o lars.o
In file included from ../inst/include/mlpack/core/stb/stb.hpp:80,
                 from ../inst/include/mlpack/core.hpp:38,
                 from ../inst/include/mlpack/methods/lars/lars_main.cpp:12,
                 from lars.cpp:9:
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1607:14: warning: ‘int stbi_write_jpg_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1607 | STBIWDEF int stbi_write_jpg_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int quality)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1231:14: warning: ‘int stbi_write_png_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1231 | STBIWDEF int stbi_write_png_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int stride_bytes)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:787:14: warning: ‘int stbi_write_hdr_to_func(void (*)(void*, void*, int), void*, int, int, int, const float*)’ defined but not used [-Wunused-function]
  787 | STBIWDEF int stbi_write_hdr_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const float *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:611:14: warning: ‘int stbi_write_tga_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  611 | STBIWDEF int stbi_write_tga_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:512:14: warning: ‘int stbi_write_bmp_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  512 | STBIWDEF int stbi_write_bmp_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:262:15: warning: ‘void stbi_flip_vertically_on_write(int)’ defined but not used [-Wunused-function]
  262 | STBIWDEF void stbi_flip_vertically_on_write(int flag)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ../inst/include/mlpack/core/stb/stb.hpp:79:
../inst/include/mlpack/core/stb/bundled/stb_image.h:7755:13: warning: ‘int stbi_is_16_bit_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 7755 | STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *c, void *user)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7748:13: warning: ‘int stbi_is_16_bit_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 7748 | STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7741:13: warning: ‘int stbi_info_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7741 | STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7734:13: warning: ‘int stbi_info_from_memory(const stbi_uc*, int, int*, int*, int*)’ defined but not used [-Wunused-function]
 7734 | STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7712:13: warning: ‘int stbi_is_16_bit(const char*)’ defined but not used [-Wunused-function]
 7712 | STBIDEF int stbi_is_16_bit(char const *filename)
      |             ^~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7691:13: warning: ‘int stbi_info(const char*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7691 | STBIDEF int stbi_info(char const *filename, int *x, int *y, int *comp)
      |             ^~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5019:14: warning: ‘void stbi_convert_iphone_png_to_rgb_thread(int)’ defined but not used [-Wunused-function]
 5019 | STBIDEF void stbi_convert_iphone_png_to_rgb_thread(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5013:14: warning: ‘void stbi_set_unpremultiply_on_load_thread(int)’ defined but not used [-Wunused-function]
 5013 | STBIDEF void stbi_set_unpremultiply_on_load_thread(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5001:14: warning: ‘void stbi_convert_iphone_png_to_rgb(int)’ defined but not used [-Wunused-function]
 5001 | STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4996:14: warning: ‘void stbi_set_unpremultiply_on_load(int)’ defined but not used [-Wunused-function]
 4996 | STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4584:13: warning: ‘int stbi_zlib_decode_noheader_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4584 | STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4568:15: warning: ‘char* stbi_zlib_decode_noheader_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4568 | STBIDEF char *stbi_zlib_decode_noheader_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4557:13: warning: ‘int stbi_zlib_decode_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4557 | STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, char const *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4536:15: warning: ‘char* stbi_zlib_decode_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4536 | STBIDEF char *stbi_zlib_decode_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1582:16: warning: ‘void stbi_hdr_to_ldr_scale(float)’ defined but not used [-Wunused-function]
 1582 | STBIDEF void   stbi_hdr_to_ldr_scale(float scale) { stbi__h2l_scale_i = 1/scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1581:16: warning: ‘void stbi_hdr_to_ldr_gamma(float)’ defined but not used [-Wunused-function]
 1581 | STBIDEF void   stbi_hdr_to_ldr_gamma(float gamma) { stbi__h2l_gamma_i = 1/gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1576:16: warning: ‘void stbi_ldr_to_hdr_scale(float)’ defined but not used [-Wunused-function]
 1576 | STBIDEF void   stbi_ldr_to_hdr_scale(float scale) { stbi__l2h_scale = scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1575:16: warning: ‘void stbi_ldr_to_hdr_gamma(float)’ defined but not used [-Wunused-function]
 1575 | STBIDEF void   stbi_ldr_to_hdr_gamma(float gamma) { stbi__l2h_gamma = gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1559:18: warning: ‘int stbi_is_hdr_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 1559 | STBIDEF int      stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1531:18: warning: ‘int stbi_is_hdr(const char*)’ defined but not used [-Wunused-function]
 1531 | STBIDEF int      stbi_is_hdr          (char const *filename)
      |                  ^~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1517:13: warning: ‘int stbi_is_hdr_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 1517 | STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1493:16: warning: ‘float* stbi_loadf(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1493 | STBIDEF float *stbi_loadf(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1485:16: warning: ‘float* stbi_loadf_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1485 | STBIDEF float *stbi_loadf_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1478:16: warning: ‘float* stbi_loadf_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1478 | STBIDEF float *stbi_loadf_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1444:18: warning: ‘stbi_uc* stbi_load_gif_from_memory(const stbi_uc*, int, int**, int*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1444 | STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1436:18: warning: ‘stbi_uc* stbi_load_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1436 | STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1429:18: warning: ‘stbi_uc* stbi_load_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1429 | STBIDEF stbi_uc *stbi_load_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1422:18: warning: ‘stbi_us* stbi_load_16_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1422 | STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1415:18: warning: ‘stbi_us* stbi_load_16_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1415 | STBIDEF stbi_us *stbi_load_16_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1402:18: warning: ‘stbi_us* stbi_load_16(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1402 | STBIDEF stbi_us *stbi_load_16(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1126:14: warning: ‘void stbi_set_flip_vertically_on_load_thread(int)’ defined but not used [-Wunused-function]
 1126 | STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1116:14: warning: ‘void stbi_set_flip_vertically_on_load(int)’ defined but not used [-Wunused-function]
 1116 | STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
g++ -std=gnu++17 -I"/usr/include/R" -DNDEBUG  -I'/usr/local/lib/R/library/Rcpp/include' -I'/usr/local/lib/R/library/RcppArmadillo/include' -I'/usr/local/lib/R/library/RcppEnsmallen/include' -I/usr/local/include   -I. -I../inst/include -fopenmp -fpic  -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer    -c linear_regression.cpp -o linear_regression.o
In file included from ../inst/include/mlpack/core/stb/stb.hpp:80,
                 from ../inst/include/mlpack/core.hpp:38,
                 from ../inst/include/mlpack/methods/linear_regression/linear_regression_main.cpp:12,
                 from linear_regression.cpp:9:
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1607:14: warning: ‘int stbi_write_jpg_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1607 | STBIWDEF int stbi_write_jpg_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int quality)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1231:14: warning: ‘int stbi_write_png_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1231 | STBIWDEF int stbi_write_png_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int stride_bytes)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:787:14: warning: ‘int stbi_write_hdr_to_func(void (*)(void*, void*, int), void*, int, int, int, const float*)’ defined but not used [-Wunused-function]
  787 | STBIWDEF int stbi_write_hdr_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const float *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:611:14: warning: ‘int stbi_write_tga_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  611 | STBIWDEF int stbi_write_tga_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:512:14: warning: ‘int stbi_write_bmp_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  512 | STBIWDEF int stbi_write_bmp_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:262:15: warning: ‘void stbi_flip_vertically_on_write(int)’ defined but not used [-Wunused-function]
  262 | STBIWDEF void stbi_flip_vertically_on_write(int flag)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ../inst/include/mlpack/core/stb/stb.hpp:79:
../inst/include/mlpack/core/stb/bundled/stb_image.h:7755:13: warning: ‘int stbi_is_16_bit_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 7755 | STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *c, void *user)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7748:13: warning: ‘int stbi_is_16_bit_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 7748 | STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7741:13: warning: ‘int stbi_info_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7741 | STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7734:13: warning: ‘int stbi_info_from_memory(const stbi_uc*, int, int*, int*, int*)’ defined but not used [-Wunused-function]
 7734 | STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7712:13: warning: ‘int stbi_is_16_bit(const char*)’ defined but not used [-Wunused-function]
 7712 | STBIDEF int stbi_is_16_bit(char const *filename)
      |             ^~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7691:13: warning: ‘int stbi_info(const char*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7691 | STBIDEF int stbi_info(char const *filename, int *x, int *y, int *comp)
      |             ^~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5019:14: warning: ‘void stbi_convert_iphone_png_to_rgb_thread(int)’ defined but not used [-Wunused-function]
 5019 | STBIDEF void stbi_convert_iphone_png_to_rgb_thread(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5013:14: warning: ‘void stbi_set_unpremultiply_on_load_thread(int)’ defined but not used [-Wunused-function]
 5013 | STBIDEF void stbi_set_unpremultiply_on_load_thread(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5001:14: warning: ‘void stbi_convert_iphone_png_to_rgb(int)’ defined but not used [-Wunused-function]
 5001 | STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4996:14: warning: ‘void stbi_set_unpremultiply_on_load(int)’ defined but not used [-Wunused-function]
 4996 | STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4584:13: warning: ‘int stbi_zlib_decode_noheader_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4584 | STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4568:15: warning: ‘char* stbi_zlib_decode_noheader_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4568 | STBIDEF char *stbi_zlib_decode_noheader_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4557:13: warning: ‘int stbi_zlib_decode_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4557 | STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, char const *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4536:15: warning: ‘char* stbi_zlib_decode_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4536 | STBIDEF char *stbi_zlib_decode_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1582:16: warning: ‘void stbi_hdr_to_ldr_scale(float)’ defined but not used [-Wunused-function]
 1582 | STBIDEF void   stbi_hdr_to_ldr_scale(float scale) { stbi__h2l_scale_i = 1/scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1581:16: warning: ‘void stbi_hdr_to_ldr_gamma(float)’ defined but not used [-Wunused-function]
 1581 | STBIDEF void   stbi_hdr_to_ldr_gamma(float gamma) { stbi__h2l_gamma_i = 1/gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1576:16: warning: ‘void stbi_ldr_to_hdr_scale(float)’ defined but not used [-Wunused-function]
 1576 | STBIDEF void   stbi_ldr_to_hdr_scale(float scale) { stbi__l2h_scale = scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1575:16: warning: ‘void stbi_ldr_to_hdr_gamma(float)’ defined but not used [-Wunused-function]
 1575 | STBIDEF void   stbi_ldr_to_hdr_gamma(float gamma) { stbi__l2h_gamma = gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1559:18: warning: ‘int stbi_is_hdr_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 1559 | STBIDEF int      stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1531:18: warning: ‘int stbi_is_hdr(const char*)’ defined but not used [-Wunused-function]
 1531 | STBIDEF int      stbi_is_hdr          (char const *filename)
      |                  ^~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1517:13: warning: ‘int stbi_is_hdr_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 1517 | STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1493:16: warning: ‘float* stbi_loadf(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1493 | STBIDEF float *stbi_loadf(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1485:16: warning: ‘float* stbi_loadf_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1485 | STBIDEF float *stbi_loadf_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1478:16: warning: ‘float* stbi_loadf_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1478 | STBIDEF float *stbi_loadf_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1444:18: warning: ‘stbi_uc* stbi_load_gif_from_memory(const stbi_uc*, int, int**, int*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1444 | STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1436:18: warning: ‘stbi_uc* stbi_load_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1436 | STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1429:18: warning: ‘stbi_uc* stbi_load_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1429 | STBIDEF stbi_uc *stbi_load_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1422:18: warning: ‘stbi_us* stbi_load_16_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1422 | STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1415:18: warning: ‘stbi_us* stbi_load_16_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1415 | STBIDEF stbi_us *stbi_load_16_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1402:18: warning: ‘stbi_us* stbi_load_16(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1402 | STBIDEF stbi_us *stbi_load_16(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1126:14: warning: ‘void stbi_set_flip_vertically_on_load_thread(int)’ defined but not used [-Wunused-function]
 1126 | STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1116:14: warning: ‘void stbi_set_flip_vertically_on_load(int)’ defined but not used [-Wunused-function]
 1116 | STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
g++ -std=gnu++17 -I"/usr/include/R" -DNDEBUG  -I'/usr/local/lib/R/library/Rcpp/include' -I'/usr/local/lib/R/library/RcppArmadillo/include' -I'/usr/local/lib/R/library/RcppEnsmallen/include' -I/usr/local/include   -I. -I../inst/include -fopenmp -fpic  -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer    -c linear_svm.cpp -o linear_svm.o
In file included from ../inst/include/mlpack/core/stb/stb.hpp:80,
                 from ../inst/include/mlpack/core.hpp:38,
                 from ../inst/include/mlpack/methods/linear_svm/linear_svm_main.cpp:12,
                 from linear_svm.cpp:9:
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1607:14: warning: ‘int stbi_write_jpg_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1607 | STBIWDEF int stbi_write_jpg_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int quality)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1231:14: warning: ‘int stbi_write_png_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1231 | STBIWDEF int stbi_write_png_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int stride_bytes)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:787:14: warning: ‘int stbi_write_hdr_to_func(void (*)(void*, void*, int), void*, int, int, int, const float*)’ defined but not used [-Wunused-function]
  787 | STBIWDEF int stbi_write_hdr_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const float *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:611:14: warning: ‘int stbi_write_tga_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  611 | STBIWDEF int stbi_write_tga_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:512:14: warning: ‘int stbi_write_bmp_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  512 | STBIWDEF int stbi_write_bmp_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:262:15: warning: ‘void stbi_flip_vertically_on_write(int)’ defined but not used [-Wunused-function]
  262 | STBIWDEF void stbi_flip_vertically_on_write(int flag)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ../inst/include/mlpack/core/stb/stb.hpp:79:
../inst/include/mlpack/core/stb/bundled/stb_image.h:7755:13: warning: ‘int stbi_is_16_bit_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 7755 | STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *c, void *user)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7748:13: warning: ‘int stbi_is_16_bit_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 7748 | STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7741:13: warning: ‘int stbi_info_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7741 | STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7734:13: warning: ‘int stbi_info_from_memory(const stbi_uc*, int, int*, int*, int*)’ defined but not used [-Wunused-function]
 7734 | STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7712:13: warning: ‘int stbi_is_16_bit(const char*)’ defined but not used [-Wunused-function]
 7712 | STBIDEF int stbi_is_16_bit(char const *filename)
      |             ^~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7691:13: warning: ‘int stbi_info(const char*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7691 | STBIDEF int stbi_info(char const *filename, int *x, int *y, int *comp)
      |             ^~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5019:14: warning: ‘void stbi_convert_iphone_png_to_rgb_thread(int)’ defined but not used [-Wunused-function]
 5019 | STBIDEF void stbi_convert_iphone_png_to_rgb_thread(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5013:14: warning: ‘void stbi_set_unpremultiply_on_load_thread(int)’ defined but not used [-Wunused-function]
 5013 | STBIDEF void stbi_set_unpremultiply_on_load_thread(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5001:14: warning: ‘void stbi_convert_iphone_png_to_rgb(int)’ defined but not used [-Wunused-function]
 5001 | STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4996:14: warning: ‘void stbi_set_unpremultiply_on_load(int)’ defined but not used [-Wunused-function]
 4996 | STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4584:13: warning: ‘int stbi_zlib_decode_noheader_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4584 | STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4568:15: warning: ‘char* stbi_zlib_decode_noheader_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4568 | STBIDEF char *stbi_zlib_decode_noheader_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4557:13: warning: ‘int stbi_zlib_decode_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4557 | STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, char const *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4536:15: warning: ‘char* stbi_zlib_decode_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4536 | STBIDEF char *stbi_zlib_decode_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1582:16: warning: ‘void stbi_hdr_to_ldr_scale(float)’ defined but not used [-Wunused-function]
 1582 | STBIDEF void   stbi_hdr_to_ldr_scale(float scale) { stbi__h2l_scale_i = 1/scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1581:16: warning: ‘void stbi_hdr_to_ldr_gamma(float)’ defined but not used [-Wunused-function]
 1581 | STBIDEF void   stbi_hdr_to_ldr_gamma(float gamma) { stbi__h2l_gamma_i = 1/gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1576:16: warning: ‘void stbi_ldr_to_hdr_scale(float)’ defined but not used [-Wunused-function]
 1576 | STBIDEF void   stbi_ldr_to_hdr_scale(float scale) { stbi__l2h_scale = scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1575:16: warning: ‘void stbi_ldr_to_hdr_gamma(float)’ defined but not used [-Wunused-function]
 1575 | STBIDEF void   stbi_ldr_to_hdr_gamma(float gamma) { stbi__l2h_gamma = gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1559:18: warning: ‘int stbi_is_hdr_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 1559 | STBIDEF int      stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1531:18: warning: ‘int stbi_is_hdr(const char*)’ defined but not used [-Wunused-function]
 1531 | STBIDEF int      stbi_is_hdr          (char const *filename)
      |                  ^~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1517:13: warning: ‘int stbi_is_hdr_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 1517 | STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1493:16: warning: ‘float* stbi_loadf(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1493 | STBIDEF float *stbi_loadf(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1485:16: warning: ‘float* stbi_loadf_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1485 | STBIDEF float *stbi_loadf_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1478:16: warning: ‘float* stbi_loadf_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1478 | STBIDEF float *stbi_loadf_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1444:18: warning: ‘stbi_uc* stbi_load_gif_from_memory(const stbi_uc*, int, int**, int*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1444 | STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1436:18: warning: ‘stbi_uc* stbi_load_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1436 | STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1429:18: warning: ‘stbi_uc* stbi_load_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1429 | STBIDEF stbi_uc *stbi_load_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1422:18: warning: ‘stbi_us* stbi_load_16_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1422 | STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1415:18: warning: ‘stbi_us* stbi_load_16_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1415 | STBIDEF stbi_us *stbi_load_16_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1402:18: warning: ‘stbi_us* stbi_load_16(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1402 | STBIDEF stbi_us *stbi_load_16(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1126:14: warning: ‘void stbi_set_flip_vertically_on_load_thread(int)’ defined but not used [-Wunused-function]
 1126 | STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1116:14: warning: ‘void stbi_set_flip_vertically_on_load(int)’ defined but not used [-Wunused-function]
 1116 | STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
g++ -std=gnu++17 -I"/usr/include/R" -DNDEBUG  -I'/usr/local/lib/R/library/Rcpp/include' -I'/usr/local/lib/R/library/RcppArmadillo/include' -I'/usr/local/lib/R/library/RcppEnsmallen/include' -I/usr/local/include   -I. -I../inst/include -fopenmp -fpic  -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer    -c lmnn.cpp -o lmnn.o
In file included from ../inst/include/mlpack/core/stb/stb.hpp:80,
                 from ../inst/include/mlpack/core.hpp:38,
                 from ../inst/include/mlpack/methods/lmnn/lmnn_main.cpp:12,
                 from lmnn.cpp:9:
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1607:14: warning: ‘int stbi_write_jpg_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1607 | STBIWDEF int stbi_write_jpg_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int quality)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1231:14: warning: ‘int stbi_write_png_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1231 | STBIWDEF int stbi_write_png_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int stride_bytes)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:787:14: warning: ‘int stbi_write_hdr_to_func(void (*)(void*, void*, int), void*, int, int, int, const float*)’ defined but not used [-Wunused-function]
  787 | STBIWDEF int stbi_write_hdr_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const float *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:611:14: warning: ‘int stbi_write_tga_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  611 | STBIWDEF int stbi_write_tga_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:512:14: warning: ‘int stbi_write_bmp_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  512 | STBIWDEF int stbi_write_bmp_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:262:15: warning: ‘void stbi_flip_vertically_on_write(int)’ defined but not used [-Wunused-function]
  262 | STBIWDEF void stbi_flip_vertically_on_write(int flag)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ../inst/include/mlpack/core/stb/stb.hpp:79:
../inst/include/mlpack/core/stb/bundled/stb_image.h:7755:13: warning: ‘int stbi_is_16_bit_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 7755 | STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *c, void *user)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7748:13: warning: ‘int stbi_is_16_bit_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 7748 | STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7741:13: warning: ‘int stbi_info_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7741 | STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7734:13: warning: ‘int stbi_info_from_memory(const stbi_uc*, int, int*, int*, int*)’ defined but not used [-Wunused-function]
 7734 | STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7712:13: warning: ‘int stbi_is_16_bit(const char*)’ defined but not used [-Wunused-function]
 7712 | STBIDEF int stbi_is_16_bit(char const *filename)
      |             ^~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7691:13: warning: ‘int stbi_info(const char*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7691 | STBIDEF int stbi_info(char const *filename, int *x, int *y, int *comp)
      |             ^~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5019:14: warning: ‘void stbi_convert_iphone_png_to_rgb_thread(int)’ defined but not used [-Wunused-function]
 5019 | STBIDEF void stbi_convert_iphone_png_to_rgb_thread(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5013:14: warning: ‘void stbi_set_unpremultiply_on_load_thread(int)’ defined but not used [-Wunused-function]
 5013 | STBIDEF void stbi_set_unpremultiply_on_load_thread(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5001:14: warning: ‘void stbi_convert_iphone_png_to_rgb(int)’ defined but not used [-Wunused-function]
 5001 | STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4996:14: warning: ‘void stbi_set_unpremultiply_on_load(int)’ defined but not used [-Wunused-function]
 4996 | STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4584:13: warning: ‘int stbi_zlib_decode_noheader_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4584 | STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4568:15: warning: ‘char* stbi_zlib_decode_noheader_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4568 | STBIDEF char *stbi_zlib_decode_noheader_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4557:13: warning: ‘int stbi_zlib_decode_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4557 | STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, char const *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4536:15: warning: ‘char* stbi_zlib_decode_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4536 | STBIDEF char *stbi_zlib_decode_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1582:16: warning: ‘void stbi_hdr_to_ldr_scale(float)’ defined but not used [-Wunused-function]
 1582 | STBIDEF void   stbi_hdr_to_ldr_scale(float scale) { stbi__h2l_scale_i = 1/scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1581:16: warning: ‘void stbi_hdr_to_ldr_gamma(float)’ defined but not used [-Wunused-function]
 1581 | STBIDEF void   stbi_hdr_to_ldr_gamma(float gamma) { stbi__h2l_gamma_i = 1/gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1576:16: warning: ‘void stbi_ldr_to_hdr_scale(float)’ defined but not used [-Wunused-function]
 1576 | STBIDEF void   stbi_ldr_to_hdr_scale(float scale) { stbi__l2h_scale = scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1575:16: warning: ‘void stbi_ldr_to_hdr_gamma(float)’ defined but not used [-Wunused-function]
 1575 | STBIDEF void   stbi_ldr_to_hdr_gamma(float gamma) { stbi__l2h_gamma = gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1559:18: warning: ‘int stbi_is_hdr_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 1559 | STBIDEF int      stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1531:18: warning: ‘int stbi_is_hdr(const char*)’ defined but not used [-Wunused-function]
 1531 | STBIDEF int      stbi_is_hdr          (char const *filename)
      |                  ^~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1517:13: warning: ‘int stbi_is_hdr_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 1517 | STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1493:16: warning: ‘float* stbi_loadf(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1493 | STBIDEF float *stbi_loadf(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1485:16: warning: ‘float* stbi_loadf_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1485 | STBIDEF float *stbi_loadf_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1478:16: warning: ‘float* stbi_loadf_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1478 | STBIDEF float *stbi_loadf_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1444:18: warning: ‘stbi_uc* stbi_load_gif_from_memory(const stbi_uc*, int, int**, int*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1444 | STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1436:18: warning: ‘stbi_uc* stbi_load_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1436 | STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1429:18: warning: ‘stbi_uc* stbi_load_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1429 | STBIDEF stbi_uc *stbi_load_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1422:18: warning: ‘stbi_us* stbi_load_16_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1422 | STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1415:18: warning: ‘stbi_us* stbi_load_16_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1415 | STBIDEF stbi_us *stbi_load_16_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1402:18: warning: ‘stbi_us* stbi_load_16(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1402 | STBIDEF stbi_us *stbi_load_16(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1126:14: warning: ‘void stbi_set_flip_vertically_on_load_thread(int)’ defined but not used [-Wunused-function]
 1126 | STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1116:14: warning: ‘void stbi_set_flip_vertically_on_load(int)’ defined but not used [-Wunused-function]
 1116 | STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
g++ -std=gnu++17 -I"/usr/include/R" -DNDEBUG  -I'/usr/local/lib/R/library/Rcpp/include' -I'/usr/local/lib/R/library/RcppArmadillo/include' -I'/usr/local/lib/R/library/RcppEnsmallen/include' -I/usr/local/include   -I. -I../inst/include -fopenmp -fpic  -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer    -c local_coordinate_coding.cpp -o local_coordinate_coding.o
In file included from ../inst/include/mlpack/core/stb/stb.hpp:80,
                 from ../inst/include/mlpack/core.hpp:38,
                 from ../inst/include/mlpack/methods/local_coordinate_coding/local_coordinate_coding_main.cpp:12,
                 from local_coordinate_coding.cpp:9:
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1607:14: warning: ‘int stbi_write_jpg_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1607 | STBIWDEF int stbi_write_jpg_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int quality)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1231:14: warning: ‘int stbi_write_png_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1231 | STBIWDEF int stbi_write_png_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int stride_bytes)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:787:14: warning: ‘int stbi_write_hdr_to_func(void (*)(void*, void*, int), void*, int, int, int, const float*)’ defined but not used [-Wunused-function]
  787 | STBIWDEF int stbi_write_hdr_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const float *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:611:14: warning: ‘int stbi_write_tga_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  611 | STBIWDEF int stbi_write_tga_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:512:14: warning: ‘int stbi_write_bmp_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  512 | STBIWDEF int stbi_write_bmp_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:262:15: warning: ‘void stbi_flip_vertically_on_write(int)’ defined but not used [-Wunused-function]
  262 | STBIWDEF void stbi_flip_vertically_on_write(int flag)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ../inst/include/mlpack/core/stb/stb.hpp:79:
../inst/include/mlpack/core/stb/bundled/stb_image.h:7755:13: warning: ‘int stbi_is_16_bit_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 7755 | STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *c, void *user)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7748:13: warning: ‘int stbi_is_16_bit_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 7748 | STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7741:13: warning: ‘int stbi_info_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7741 | STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7734:13: warning: ‘int stbi_info_from_memory(const stbi_uc*, int, int*, int*, int*)’ defined but not used [-Wunused-function]
 7734 | STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7712:13: warning: ‘int stbi_is_16_bit(const char*)’ defined but not used [-Wunused-function]
 7712 | STBIDEF int stbi_is_16_bit(char const *filename)
      |             ^~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7691:13: warning: ‘int stbi_info(const char*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7691 | STBIDEF int stbi_info(char const *filename, int *x, int *y, int *comp)
      |             ^~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5019:14: warning: ‘void stbi_convert_iphone_png_to_rgb_thread(int)’ defined but not used [-Wunused-function]
 5019 | STBIDEF void stbi_convert_iphone_png_to_rgb_thread(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5013:14: warning: ‘void stbi_set_unpremultiply_on_load_thread(int)’ defined but not used [-Wunused-function]
 5013 | STBIDEF void stbi_set_unpremultiply_on_load_thread(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5001:14: warning: ‘void stbi_convert_iphone_png_to_rgb(int)’ defined but not used [-Wunused-function]
 5001 | STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4996:14: warning: ‘void stbi_set_unpremultiply_on_load(int)’ defined but not used [-Wunused-function]
 4996 | STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4584:13: warning: ‘int stbi_zlib_decode_noheader_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4584 | STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4568:15: warning: ‘char* stbi_zlib_decode_noheader_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4568 | STBIDEF char *stbi_zlib_decode_noheader_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4557:13: warning: ‘int stbi_zlib_decode_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4557 | STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, char const *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4536:15: warning: ‘char* stbi_zlib_decode_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4536 | STBIDEF char *stbi_zlib_decode_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1582:16: warning: ‘void stbi_hdr_to_ldr_scale(float)’ defined but not used [-Wunused-function]
 1582 | STBIDEF void   stbi_hdr_to_ldr_scale(float scale) { stbi__h2l_scale_i = 1/scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1581:16: warning: ‘void stbi_hdr_to_ldr_gamma(float)’ defined but not used [-Wunused-function]
 1581 | STBIDEF void   stbi_hdr_to_ldr_gamma(float gamma) { stbi__h2l_gamma_i = 1/gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1576:16: warning: ‘void stbi_ldr_to_hdr_scale(float)’ defined but not used [-Wunused-function]
 1576 | STBIDEF void   stbi_ldr_to_hdr_scale(float scale) { stbi__l2h_scale = scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1575:16: warning: ‘void stbi_ldr_to_hdr_gamma(float)’ defined but not used [-Wunused-function]
 1575 | STBIDEF void   stbi_ldr_to_hdr_gamma(float gamma) { stbi__l2h_gamma = gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1559:18: warning: ‘int stbi_is_hdr_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 1559 | STBIDEF int      stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1531:18: warning: ‘int stbi_is_hdr(const char*)’ defined but not used [-Wunused-function]
 1531 | STBIDEF int      stbi_is_hdr          (char const *filename)
      |                  ^~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1517:13: warning: ‘int stbi_is_hdr_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 1517 | STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1493:16: warning: ‘float* stbi_loadf(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1493 | STBIDEF float *stbi_loadf(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1485:16: warning: ‘float* stbi_loadf_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1485 | STBIDEF float *stbi_loadf_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1478:16: warning: ‘float* stbi_loadf_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1478 | STBIDEF float *stbi_loadf_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1444:18: warning: ‘stbi_uc* stbi_load_gif_from_memory(const stbi_uc*, int, int**, int*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1444 | STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1436:18: warning: ‘stbi_uc* stbi_load_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1436 | STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1429:18: warning: ‘stbi_uc* stbi_load_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1429 | STBIDEF stbi_uc *stbi_load_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1422:18: warning: ‘stbi_us* stbi_load_16_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1422 | STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1415:18: warning: ‘stbi_us* stbi_load_16_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1415 | STBIDEF stbi_us *stbi_load_16_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1402:18: warning: ‘stbi_us* stbi_load_16(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1402 | STBIDEF stbi_us *stbi_load_16(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1126:14: warning: ‘void stbi_set_flip_vertically_on_load_thread(int)’ defined but not used [-Wunused-function]
 1126 | STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1116:14: warning: ‘void stbi_set_flip_vertically_on_load(int)’ defined but not used [-Wunused-function]
 1116 | STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
g++ -std=gnu++17 -I"/usr/include/R" -DNDEBUG  -I'/usr/local/lib/R/library/Rcpp/include' -I'/usr/local/lib/R/library/RcppArmadillo/include' -I'/usr/local/lib/R/library/RcppEnsmallen/include' -I/usr/local/include   -I. -I../inst/include -fopenmp -fpic  -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer    -c logistic_regression.cpp -o logistic_regression.o
In file included from ../inst/include/mlpack/core/stb/stb.hpp:80,
                 from ../inst/include/mlpack/core.hpp:38,
                 from ../inst/include/mlpack/methods/logistic_regression/logistic_regression_main.cpp:12,
                 from logistic_regression.cpp:9:
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1607:14: warning: ‘int stbi_write_jpg_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1607 | STBIWDEF int stbi_write_jpg_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int quality)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1231:14: warning: ‘int stbi_write_png_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1231 | STBIWDEF int stbi_write_png_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int stride_bytes)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:787:14: warning: ‘int stbi_write_hdr_to_func(void (*)(void*, void*, int), void*, int, int, int, const float*)’ defined but not used [-Wunused-function]
  787 | STBIWDEF int stbi_write_hdr_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const float *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:611:14: warning: ‘int stbi_write_tga_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  611 | STBIWDEF int stbi_write_tga_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:512:14: warning: ‘int stbi_write_bmp_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  512 | STBIWDEF int stbi_write_bmp_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:262:15: warning: ‘void stbi_flip_vertically_on_write(int)’ defined but not used [-Wunused-function]
  262 | STBIWDEF void stbi_flip_vertically_on_write(int flag)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ../inst/include/mlpack/core/stb/stb.hpp:79:
../inst/include/mlpack/core/stb/bundled/stb_image.h:7755:13: warning: ‘int stbi_is_16_bit_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 7755 | STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *c, void *user)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7748:13: warning: ‘int stbi_is_16_bit_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 7748 | STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7741:13: warning: ‘int stbi_info_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7741 | STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7734:13: warning: ‘int stbi_info_from_memory(const stbi_uc*, int, int*, int*, int*)’ defined but not used [-Wunused-function]
 7734 | STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7712:13: warning: ‘int stbi_is_16_bit(const char*)’ defined but not used [-Wunused-function]
 7712 | STBIDEF int stbi_is_16_bit(char const *filename)
      |             ^~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7691:13: warning: ‘int stbi_info(const char*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7691 | STBIDEF int stbi_info(char const *filename, int *x, int *y, int *comp)
      |             ^~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5019:14: warning: ‘void stbi_convert_iphone_png_to_rgb_thread(int)’ defined but not used [-Wunused-function]
 5019 | STBIDEF void stbi_convert_iphone_png_to_rgb_thread(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5013:14: warning: ‘void stbi_set_unpremultiply_on_load_thread(int)’ defined but not used [-Wunused-function]
 5013 | STBIDEF void stbi_set_unpremultiply_on_load_thread(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5001:14: warning: ‘void stbi_convert_iphone_png_to_rgb(int)’ defined but not used [-Wunused-function]
 5001 | STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4996:14: warning: ‘void stbi_set_unpremultiply_on_load(int)’ defined but not used [-Wunused-function]
 4996 | STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4584:13: warning: ‘int stbi_zlib_decode_noheader_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4584 | STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4568:15: warning: ‘char* stbi_zlib_decode_noheader_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4568 | STBIDEF char *stbi_zlib_decode_noheader_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4557:13: warning: ‘int stbi_zlib_decode_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4557 | STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, char const *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4536:15: warning: ‘char* stbi_zlib_decode_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4536 | STBIDEF char *stbi_zlib_decode_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1582:16: warning: ‘void stbi_hdr_to_ldr_scale(float)’ defined but not used [-Wunused-function]
 1582 | STBIDEF void   stbi_hdr_to_ldr_scale(float scale) { stbi__h2l_scale_i = 1/scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1581:16: warning: ‘void stbi_hdr_to_ldr_gamma(float)’ defined but not used [-Wunused-function]
 1581 | STBIDEF void   stbi_hdr_to_ldr_gamma(float gamma) { stbi__h2l_gamma_i = 1/gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1576:16: warning: ‘void stbi_ldr_to_hdr_scale(float)’ defined but not used [-Wunused-function]
 1576 | STBIDEF void   stbi_ldr_to_hdr_scale(float scale) { stbi__l2h_scale = scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1575:16: warning: ‘void stbi_ldr_to_hdr_gamma(float)’ defined but not used [-Wunused-function]
 1575 | STBIDEF void   stbi_ldr_to_hdr_gamma(float gamma) { stbi__l2h_gamma = gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1559:18: warning: ‘int stbi_is_hdr_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 1559 | STBIDEF int      stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1531:18: warning: ‘int stbi_is_hdr(const char*)’ defined but not used [-Wunused-function]
 1531 | STBIDEF int      stbi_is_hdr          (char const *filename)
      |                  ^~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1517:13: warning: ‘int stbi_is_hdr_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 1517 | STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1493:16: warning: ‘float* stbi_loadf(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1493 | STBIDEF float *stbi_loadf(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1485:16: warning: ‘float* stbi_loadf_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1485 | STBIDEF float *stbi_loadf_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1478:16: warning: ‘float* stbi_loadf_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1478 | STBIDEF float *stbi_loadf_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1444:18: warning: ‘stbi_uc* stbi_load_gif_from_memory(const stbi_uc*, int, int**, int*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1444 | STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1436:18: warning: ‘stbi_uc* stbi_load_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1436 | STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1429:18: warning: ‘stbi_uc* stbi_load_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1429 | STBIDEF stbi_uc *stbi_load_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1422:18: warning: ‘stbi_us* stbi_load_16_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1422 | STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1415:18: warning: ‘stbi_us* stbi_load_16_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1415 | STBIDEF stbi_us *stbi_load_16_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1402:18: warning: ‘stbi_us* stbi_load_16(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1402 | STBIDEF stbi_us *stbi_load_16(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1126:14: warning: ‘void stbi_set_flip_vertically_on_load_thread(int)’ defined but not used [-Wunused-function]
 1126 | STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1116:14: warning: ‘void stbi_set_flip_vertically_on_load(int)’ defined but not used [-Wunused-function]
 1116 | STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
g++ -std=gnu++17 -I"/usr/include/R" -DNDEBUG  -I'/usr/local/lib/R/library/Rcpp/include' -I'/usr/local/lib/R/library/RcppArmadillo/include' -I'/usr/local/lib/R/library/RcppEnsmallen/include' -I/usr/local/include   -I. -I../inst/include -fopenmp -fpic  -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer    -c lsh.cpp -o lsh.o
In file included from ../inst/include/mlpack/core/stb/stb.hpp:80,
                 from ../inst/include/mlpack/core.hpp:38,
                 from ../inst/include/mlpack/methods/lsh/lsh_main.cpp:13,
                 from lsh.cpp:9:
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1607:14: warning: ‘int stbi_write_jpg_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1607 | STBIWDEF int stbi_write_jpg_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int quality)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1231:14: warning: ‘int stbi_write_png_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1231 | STBIWDEF int stbi_write_png_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int stride_bytes)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:787:14: warning: ‘int stbi_write_hdr_to_func(void (*)(void*, void*, int), void*, int, int, int, const float*)’ defined but not used [-Wunused-function]
  787 | STBIWDEF int stbi_write_hdr_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const float *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:611:14: warning: ‘int stbi_write_tga_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  611 | STBIWDEF int stbi_write_tga_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:512:14: warning: ‘int stbi_write_bmp_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  512 | STBIWDEF int stbi_write_bmp_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:262:15: warning: ‘void stbi_flip_vertically_on_write(int)’ defined but not used [-Wunused-function]
  262 | STBIWDEF void stbi_flip_vertically_on_write(int flag)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ../inst/include/mlpack/core/stb/stb.hpp:79:
../inst/include/mlpack/core/stb/bundled/stb_image.h:7755:13: warning: ‘int stbi_is_16_bit_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 7755 | STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *c, void *user)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7748:13: warning: ‘int stbi_is_16_bit_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 7748 | STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7741:13: warning: ‘int stbi_info_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7741 | STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7734:13: warning: ‘int stbi_info_from_memory(const stbi_uc*, int, int*, int*, int*)’ defined but not used [-Wunused-function]
 7734 | STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7712:13: warning: ‘int stbi_is_16_bit(const char*)’ defined but not used [-Wunused-function]
 7712 | STBIDEF int stbi_is_16_bit(char const *filename)
      |             ^~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7691:13: warning: ‘int stbi_info(const char*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7691 | STBIDEF int stbi_info(char const *filename, int *x, int *y, int *comp)
      |             ^~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5019:14: warning: ‘void stbi_convert_iphone_png_to_rgb_thread(int)’ defined but not used [-Wunused-function]
 5019 | STBIDEF void stbi_convert_iphone_png_to_rgb_thread(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5013:14: warning: ‘void stbi_set_unpremultiply_on_load_thread(int)’ defined but not used [-Wunused-function]
 5013 | STBIDEF void stbi_set_unpremultiply_on_load_thread(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5001:14: warning: ‘void stbi_convert_iphone_png_to_rgb(int)’ defined but not used [-Wunused-function]
 5001 | STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4996:14: warning: ‘void stbi_set_unpremultiply_on_load(int)’ defined but not used [-Wunused-function]
 4996 | STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4584:13: warning: ‘int stbi_zlib_decode_noheader_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4584 | STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4568:15: warning: ‘char* stbi_zlib_decode_noheader_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4568 | STBIDEF char *stbi_zlib_decode_noheader_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4557:13: warning: ‘int stbi_zlib_decode_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4557 | STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, char const *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4536:15: warning: ‘char* stbi_zlib_decode_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4536 | STBIDEF char *stbi_zlib_decode_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1582:16: warning: ‘void stbi_hdr_to_ldr_scale(float)’ defined but not used [-Wunused-function]
 1582 | STBIDEF void   stbi_hdr_to_ldr_scale(float scale) { stbi__h2l_scale_i = 1/scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1581:16: warning: ‘void stbi_hdr_to_ldr_gamma(float)’ defined but not used [-Wunused-function]
 1581 | STBIDEF void   stbi_hdr_to_ldr_gamma(float gamma) { stbi__h2l_gamma_i = 1/gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1576:16: warning: ‘void stbi_ldr_to_hdr_scale(float)’ defined but not used [-Wunused-function]
 1576 | STBIDEF void   stbi_ldr_to_hdr_scale(float scale) { stbi__l2h_scale = scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1575:16: warning: ‘void stbi_ldr_to_hdr_gamma(float)’ defined but not used [-Wunused-function]
 1575 | STBIDEF void   stbi_ldr_to_hdr_gamma(float gamma) { stbi__l2h_gamma = gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1559:18: warning: ‘int stbi_is_hdr_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 1559 | STBIDEF int      stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1531:18: warning: ‘int stbi_is_hdr(const char*)’ defined but not used [-Wunused-function]
 1531 | STBIDEF int      stbi_is_hdr          (char const *filename)
      |                  ^~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1517:13: warning: ‘int stbi_is_hdr_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 1517 | STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1493:16: warning: ‘float* stbi_loadf(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1493 | STBIDEF float *stbi_loadf(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1485:16: warning: ‘float* stbi_loadf_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1485 | STBIDEF float *stbi_loadf_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1478:16: warning: ‘float* stbi_loadf_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1478 | STBIDEF float *stbi_loadf_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1444:18: warning: ‘stbi_uc* stbi_load_gif_from_memory(const stbi_uc*, int, int**, int*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1444 | STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1436:18: warning: ‘stbi_uc* stbi_load_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1436 | STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1429:18: warning: ‘stbi_uc* stbi_load_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1429 | STBIDEF stbi_uc *stbi_load_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1422:18: warning: ‘stbi_us* stbi_load_16_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1422 | STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1415:18: warning: ‘stbi_us* stbi_load_16_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1415 | STBIDEF stbi_us *stbi_load_16_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1402:18: warning: ‘stbi_us* stbi_load_16(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1402 | STBIDEF stbi_us *stbi_load_16(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1126:14: warning: ‘void stbi_set_flip_vertically_on_load_thread(int)’ defined but not used [-Wunused-function]
 1126 | STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1116:14: warning: ‘void stbi_set_flip_vertically_on_load(int)’ defined but not used [-Wunused-function]
 1116 | STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
g++ -std=gnu++17 -I"/usr/include/R" -DNDEBUG  -I'/usr/local/lib/R/library/Rcpp/include' -I'/usr/local/lib/R/library/RcppArmadillo/include' -I'/usr/local/lib/R/library/RcppEnsmallen/include' -I/usr/local/include   -I. -I../inst/include -fopenmp -fpic  -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer    -c mean_shift.cpp -o mean_shift.o
In file included from ../inst/include/mlpack/core/stb/stb.hpp:80,
                 from ../inst/include/mlpack/core.hpp:38,
                 from ../inst/include/mlpack/methods/mean_shift/mean_shift_main.cpp:12,
                 from mean_shift.cpp:9:
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1607:14: warning: ‘int stbi_write_jpg_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1607 | STBIWDEF int stbi_write_jpg_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int quality)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1231:14: warning: ‘int stbi_write_png_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1231 | STBIWDEF int stbi_write_png_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int stride_bytes)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:787:14: warning: ‘int stbi_write_hdr_to_func(void (*)(void*, void*, int), void*, int, int, int, const float*)’ defined but not used [-Wunused-function]
  787 | STBIWDEF int stbi_write_hdr_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const float *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:611:14: warning: ‘int stbi_write_tga_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  611 | STBIWDEF int stbi_write_tga_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:512:14: warning: ‘int stbi_write_bmp_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  512 | STBIWDEF int stbi_write_bmp_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:262:15: warning: ‘void stbi_flip_vertically_on_write(int)’ defined but not used [-Wunused-function]
  262 | STBIWDEF void stbi_flip_vertically_on_write(int flag)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ../inst/include/mlpack/core/stb/stb.hpp:79:
../inst/include/mlpack/core/stb/bundled/stb_image.h:7755:13: warning: ‘int stbi_is_16_bit_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 7755 | STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *c, void *user)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7748:13: warning: ‘int stbi_is_16_bit_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 7748 | STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7741:13: warning: ‘int stbi_info_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7741 | STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7734:13: warning: ‘int stbi_info_from_memory(const stbi_uc*, int, int*, int*, int*)’ defined but not used [-Wunused-function]
 7734 | STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7712:13: warning: ‘int stbi_is_16_bit(const char*)’ defined but not used [-Wunused-function]
 7712 | STBIDEF int stbi_is_16_bit(char const *filename)
      |             ^~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7691:13: warning: ‘int stbi_info(const char*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7691 | STBIDEF int stbi_info(char const *filename, int *x, int *y, int *comp)
      |             ^~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5019:14: warning: ‘void stbi_convert_iphone_png_to_rgb_thread(int)’ defined but not used [-Wunused-function]
 5019 | STBIDEF void stbi_convert_iphone_png_to_rgb_thread(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5013:14: warning: ‘void stbi_set_unpremultiply_on_load_thread(int)’ defined but not used [-Wunused-function]
 5013 | STBIDEF void stbi_set_unpremultiply_on_load_thread(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5001:14: warning: ‘void stbi_convert_iphone_png_to_rgb(int)’ defined but not used [-Wunused-function]
 5001 | STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4996:14: warning: ‘void stbi_set_unpremultiply_on_load(int)’ defined but not used [-Wunused-function]
 4996 | STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4584:13: warning: ‘int stbi_zlib_decode_noheader_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4584 | STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4568:15: warning: ‘char* stbi_zlib_decode_noheader_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4568 | STBIDEF char *stbi_zlib_decode_noheader_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4557:13: warning: ‘int stbi_zlib_decode_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4557 | STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, char const *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4536:15: warning: ‘char* stbi_zlib_decode_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4536 | STBIDEF char *stbi_zlib_decode_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1582:16: warning: ‘void stbi_hdr_to_ldr_scale(float)’ defined but not used [-Wunused-function]
 1582 | STBIDEF void   stbi_hdr_to_ldr_scale(float scale) { stbi__h2l_scale_i = 1/scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1581:16: warning: ‘void stbi_hdr_to_ldr_gamma(float)’ defined but not used [-Wunused-function]
 1581 | STBIDEF void   stbi_hdr_to_ldr_gamma(float gamma) { stbi__h2l_gamma_i = 1/gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1576:16: warning: ‘void stbi_ldr_to_hdr_scale(float)’ defined but not used [-Wunused-function]
 1576 | STBIDEF void   stbi_ldr_to_hdr_scale(float scale) { stbi__l2h_scale = scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1575:16: warning: ‘void stbi_ldr_to_hdr_gamma(float)’ defined but not used [-Wunused-function]
 1575 | STBIDEF void   stbi_ldr_to_hdr_gamma(float gamma) { stbi__l2h_gamma = gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1559:18: warning: ‘int stbi_is_hdr_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 1559 | STBIDEF int      stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1531:18: warning: ‘int stbi_is_hdr(const char*)’ defined but not used [-Wunused-function]
 1531 | STBIDEF int      stbi_is_hdr          (char const *filename)
      |                  ^~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1517:13: warning: ‘int stbi_is_hdr_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 1517 | STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1493:16: warning: ‘float* stbi_loadf(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1493 | STBIDEF float *stbi_loadf(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1485:16: warning: ‘float* stbi_loadf_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1485 | STBIDEF float *stbi_loadf_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1478:16: warning: ‘float* stbi_loadf_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1478 | STBIDEF float *stbi_loadf_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1444:18: warning: ‘stbi_uc* stbi_load_gif_from_memory(const stbi_uc*, int, int**, int*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1444 | STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1436:18: warning: ‘stbi_uc* stbi_load_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1436 | STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1429:18: warning: ‘stbi_uc* stbi_load_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1429 | STBIDEF stbi_uc *stbi_load_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1422:18: warning: ‘stbi_us* stbi_load_16_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1422 | STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1415:18: warning: ‘stbi_us* stbi_load_16_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1415 | STBIDEF stbi_us *stbi_load_16_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1402:18: warning: ‘stbi_us* stbi_load_16(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1402 | STBIDEF stbi_us *stbi_load_16(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1126:14: warning: ‘void stbi_set_flip_vertically_on_load_thread(int)’ defined but not used [-Wunused-function]
 1126 | STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1116:14: warning: ‘void stbi_set_flip_vertically_on_load(int)’ defined but not used [-Wunused-function]
 1116 | STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
g++ -std=gnu++17 -I"/usr/include/R" -DNDEBUG  -I'/usr/local/lib/R/library/Rcpp/include' -I'/usr/local/lib/R/library/RcppArmadillo/include' -I'/usr/local/lib/R/library/RcppEnsmallen/include' -I/usr/local/include   -I. -I../inst/include -fopenmp -fpic  -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer    -c nbc.cpp -o nbc.o
In file included from ../inst/include/mlpack/core/stb/stb.hpp:80,
                 from ../inst/include/mlpack/core.hpp:38,
                 from ../inst/include/mlpack/methods/naive_bayes/nbc_main.cpp:15,
                 from nbc.cpp:9:
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1607:14: warning: ‘int stbi_write_jpg_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1607 | STBIWDEF int stbi_write_jpg_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int quality)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1231:14: warning: ‘int stbi_write_png_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1231 | STBIWDEF int stbi_write_png_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int stride_bytes)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:787:14: warning: ‘int stbi_write_hdr_to_func(void (*)(void*, void*, int), void*, int, int, int, const float*)’ defined but not used [-Wunused-function]
  787 | STBIWDEF int stbi_write_hdr_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const float *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:611:14: warning: ‘int stbi_write_tga_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  611 | STBIWDEF int stbi_write_tga_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:512:14: warning: ‘int stbi_write_bmp_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  512 | STBIWDEF int stbi_write_bmp_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:262:15: warning: ‘void stbi_flip_vertically_on_write(int)’ defined but not used [-Wunused-function]
  262 | STBIWDEF void stbi_flip_vertically_on_write(int flag)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ../inst/include/mlpack/core/stb/stb.hpp:79:
../inst/include/mlpack/core/stb/bundled/stb_image.h:7755:13: warning: ‘int stbi_is_16_bit_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 7755 | STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *c, void *user)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7748:13: warning: ‘int stbi_is_16_bit_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 7748 | STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7741:13: warning: ‘int stbi_info_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7741 | STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7734:13: warning: ‘int stbi_info_from_memory(const stbi_uc*, int, int*, int*, int*)’ defined but not used [-Wunused-function]
 7734 | STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7712:13: warning: ‘int stbi_is_16_bit(const char*)’ defined but not used [-Wunused-function]
 7712 | STBIDEF int stbi_is_16_bit(char const *filename)
      |             ^~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7691:13: warning: ‘int stbi_info(const char*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7691 | STBIDEF int stbi_info(char const *filename, int *x, int *y, int *comp)
      |             ^~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5019:14: warning: ‘void stbi_convert_iphone_png_to_rgb_thread(int)’ defined but not used [-Wunused-function]
 5019 | STBIDEF void stbi_convert_iphone_png_to_rgb_thread(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5013:14: warning: ‘void stbi_set_unpremultiply_on_load_thread(int)’ defined but not used [-Wunused-function]
 5013 | STBIDEF void stbi_set_unpremultiply_on_load_thread(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5001:14: warning: ‘void stbi_convert_iphone_png_to_rgb(int)’ defined but not used [-Wunused-function]
 5001 | STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4996:14: warning: ‘void stbi_set_unpremultiply_on_load(int)’ defined but not used [-Wunused-function]
 4996 | STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4584:13: warning: ‘int stbi_zlib_decode_noheader_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4584 | STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4568:15: warning: ‘char* stbi_zlib_decode_noheader_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4568 | STBIDEF char *stbi_zlib_decode_noheader_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4557:13: warning: ‘int stbi_zlib_decode_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4557 | STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, char const *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4536:15: warning: ‘char* stbi_zlib_decode_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4536 | STBIDEF char *stbi_zlib_decode_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1582:16: warning: ‘void stbi_hdr_to_ldr_scale(float)’ defined but not used [-Wunused-function]
 1582 | STBIDEF void   stbi_hdr_to_ldr_scale(float scale) { stbi__h2l_scale_i = 1/scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1581:16: warning: ‘void stbi_hdr_to_ldr_gamma(float)’ defined but not used [-Wunused-function]
 1581 | STBIDEF void   stbi_hdr_to_ldr_gamma(float gamma) { stbi__h2l_gamma_i = 1/gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1576:16: warning: ‘void stbi_ldr_to_hdr_scale(float)’ defined but not used [-Wunused-function]
 1576 | STBIDEF void   stbi_ldr_to_hdr_scale(float scale) { stbi__l2h_scale = scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1575:16: warning: ‘void stbi_ldr_to_hdr_gamma(float)’ defined but not used [-Wunused-function]
 1575 | STBIDEF void   stbi_ldr_to_hdr_gamma(float gamma) { stbi__l2h_gamma = gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1559:18: warning: ‘int stbi_is_hdr_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 1559 | STBIDEF int      stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1531:18: warning: ‘int stbi_is_hdr(const char*)’ defined but not used [-Wunused-function]
 1531 | STBIDEF int      stbi_is_hdr          (char const *filename)
      |                  ^~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1517:13: warning: ‘int stbi_is_hdr_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 1517 | STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1493:16: warning: ‘float* stbi_loadf(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1493 | STBIDEF float *stbi_loadf(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1485:16: warning: ‘float* stbi_loadf_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1485 | STBIDEF float *stbi_loadf_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1478:16: warning: ‘float* stbi_loadf_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1478 | STBIDEF float *stbi_loadf_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1444:18: warning: ‘stbi_uc* stbi_load_gif_from_memory(const stbi_uc*, int, int**, int*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1444 | STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1436:18: warning: ‘stbi_uc* stbi_load_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1436 | STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1429:18: warning: ‘stbi_uc* stbi_load_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1429 | STBIDEF stbi_uc *stbi_load_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1422:18: warning: ‘stbi_us* stbi_load_16_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1422 | STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1415:18: warning: ‘stbi_us* stbi_load_16_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1415 | STBIDEF stbi_us *stbi_load_16_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1402:18: warning: ‘stbi_us* stbi_load_16(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1402 | STBIDEF stbi_us *stbi_load_16(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1126:14: warning: ‘void stbi_set_flip_vertically_on_load_thread(int)’ defined but not used [-Wunused-function]
 1126 | STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1116:14: warning: ‘void stbi_set_flip_vertically_on_load(int)’ defined but not used [-Wunused-function]
 1116 | STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
g++ -std=gnu++17 -I"/usr/include/R" -DNDEBUG  -I'/usr/local/lib/R/library/Rcpp/include' -I'/usr/local/lib/R/library/RcppArmadillo/include' -I'/usr/local/lib/R/library/RcppEnsmallen/include' -I/usr/local/include   -I. -I../inst/include -fopenmp -fpic  -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer    -c nca.cpp -o nca.o
In file included from ../inst/include/mlpack/core/stb/stb.hpp:80,
                 from ../inst/include/mlpack/core.hpp:38,
                 from ../inst/include/mlpack/methods/nca/nca_main.cpp:12,
                 from nca.cpp:9:
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1607:14: warning: ‘int stbi_write_jpg_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1607 | STBIWDEF int stbi_write_jpg_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int quality)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1231:14: warning: ‘int stbi_write_png_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1231 | STBIWDEF int stbi_write_png_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int stride_bytes)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:787:14: warning: ‘int stbi_write_hdr_to_func(void (*)(void*, void*, int), void*, int, int, int, const float*)’ defined but not used [-Wunused-function]
  787 | STBIWDEF int stbi_write_hdr_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const float *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:611:14: warning: ‘int stbi_write_tga_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  611 | STBIWDEF int stbi_write_tga_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:512:14: warning: ‘int stbi_write_bmp_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  512 | STBIWDEF int stbi_write_bmp_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:262:15: warning: ‘void stbi_flip_vertically_on_write(int)’ defined but not used [-Wunused-function]
  262 | STBIWDEF void stbi_flip_vertically_on_write(int flag)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ../inst/include/mlpack/core/stb/stb.hpp:79:
../inst/include/mlpack/core/stb/bundled/stb_image.h:7755:13: warning: ‘int stbi_is_16_bit_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 7755 | STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *c, void *user)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7748:13: warning: ‘int stbi_is_16_bit_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 7748 | STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7741:13: warning: ‘int stbi_info_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7741 | STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7734:13: warning: ‘int stbi_info_from_memory(const stbi_uc*, int, int*, int*, int*)’ defined but not used [-Wunused-function]
 7734 | STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7712:13: warning: ‘int stbi_is_16_bit(const char*)’ defined but not used [-Wunused-function]
 7712 | STBIDEF int stbi_is_16_bit(char const *filename)
      |             ^~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7691:13: warning: ‘int stbi_info(const char*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7691 | STBIDEF int stbi_info(char const *filename, int *x, int *y, int *comp)
      |             ^~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5019:14: warning: ‘void stbi_convert_iphone_png_to_rgb_thread(int)’ defined but not used [-Wunused-function]
 5019 | STBIDEF void stbi_convert_iphone_png_to_rgb_thread(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5013:14: warning: ‘void stbi_set_unpremultiply_on_load_thread(int)’ defined but not used [-Wunused-function]
 5013 | STBIDEF void stbi_set_unpremultiply_on_load_thread(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5001:14: warning: ‘void stbi_convert_iphone_png_to_rgb(int)’ defined but not used [-Wunused-function]
 5001 | STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4996:14: warning: ‘void stbi_set_unpremultiply_on_load(int)’ defined but not used [-Wunused-function]
 4996 | STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4584:13: warning: ‘int stbi_zlib_decode_noheader_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4584 | STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4568:15: warning: ‘char* stbi_zlib_decode_noheader_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4568 | STBIDEF char *stbi_zlib_decode_noheader_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4557:13: warning: ‘int stbi_zlib_decode_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4557 | STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, char const *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4536:15: warning: ‘char* stbi_zlib_decode_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4536 | STBIDEF char *stbi_zlib_decode_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1582:16: warning: ‘void stbi_hdr_to_ldr_scale(float)’ defined but not used [-Wunused-function]
 1582 | STBIDEF void   stbi_hdr_to_ldr_scale(float scale) { stbi__h2l_scale_i = 1/scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1581:16: warning: ‘void stbi_hdr_to_ldr_gamma(float)’ defined but not used [-Wunused-function]
 1581 | STBIDEF void   stbi_hdr_to_ldr_gamma(float gamma) { stbi__h2l_gamma_i = 1/gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1576:16: warning: ‘void stbi_ldr_to_hdr_scale(float)’ defined but not used [-Wunused-function]
 1576 | STBIDEF void   stbi_ldr_to_hdr_scale(float scale) { stbi__l2h_scale = scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1575:16: warning: ‘void stbi_ldr_to_hdr_gamma(float)’ defined but not used [-Wunused-function]
 1575 | STBIDEF void   stbi_ldr_to_hdr_gamma(float gamma) { stbi__l2h_gamma = gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1559:18: warning: ‘int stbi_is_hdr_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 1559 | STBIDEF int      stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1531:18: warning: ‘int stbi_is_hdr(const char*)’ defined but not used [-Wunused-function]
 1531 | STBIDEF int      stbi_is_hdr          (char const *filename)
      |                  ^~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1517:13: warning: ‘int stbi_is_hdr_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 1517 | STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1493:16: warning: ‘float* stbi_loadf(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1493 | STBIDEF float *stbi_loadf(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1485:16: warning: ‘float* stbi_loadf_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1485 | STBIDEF float *stbi_loadf_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1478:16: warning: ‘float* stbi_loadf_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1478 | STBIDEF float *stbi_loadf_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1444:18: warning: ‘stbi_uc* stbi_load_gif_from_memory(const stbi_uc*, int, int**, int*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1444 | STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1436:18: warning: ‘stbi_uc* stbi_load_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1436 | STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1429:18: warning: ‘stbi_uc* stbi_load_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1429 | STBIDEF stbi_uc *stbi_load_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1422:18: warning: ‘stbi_us* stbi_load_16_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1422 | STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1415:18: warning: ‘stbi_us* stbi_load_16_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1415 | STBIDEF stbi_us *stbi_load_16_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1402:18: warning: ‘stbi_us* stbi_load_16(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1402 | STBIDEF stbi_us *stbi_load_16(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1126:14: warning: ‘void stbi_set_flip_vertically_on_load_thread(int)’ defined but not used [-Wunused-function]
 1126 | STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1116:14: warning: ‘void stbi_set_flip_vertically_on_load(int)’ defined but not used [-Wunused-function]
 1116 | STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
g++ -std=gnu++17 -I"/usr/include/R" -DNDEBUG  -I'/usr/local/lib/R/library/Rcpp/include' -I'/usr/local/lib/R/library/RcppArmadillo/include' -I'/usr/local/lib/R/library/RcppEnsmallen/include' -I/usr/local/include   -I. -I../inst/include -fopenmp -fpic  -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer    -c nmf.cpp -o nmf.o
In file included from ../inst/include/mlpack/core/stb/stb.hpp:80,
                 from ../inst/include/mlpack/core.hpp:38,
                 from ../inst/include/mlpack/methods/nmf/nmf_main.cpp:12,
                 from nmf.cpp:9:
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1607:14: warning: ‘int stbi_write_jpg_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1607 | STBIWDEF int stbi_write_jpg_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int quality)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1231:14: warning: ‘int stbi_write_png_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1231 | STBIWDEF int stbi_write_png_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int stride_bytes)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:787:14: warning: ‘int stbi_write_hdr_to_func(void (*)(void*, void*, int), void*, int, int, int, const float*)’ defined but not used [-Wunused-function]
  787 | STBIWDEF int stbi_write_hdr_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const float *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:611:14: warning: ‘int stbi_write_tga_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  611 | STBIWDEF int stbi_write_tga_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:512:14: warning: ‘int stbi_write_bmp_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  512 | STBIWDEF int stbi_write_bmp_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:262:15: warning: ‘void stbi_flip_vertically_on_write(int)’ defined but not used [-Wunused-function]
  262 | STBIWDEF void stbi_flip_vertically_on_write(int flag)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ../inst/include/mlpack/core/stb/stb.hpp:79:
../inst/include/mlpack/core/stb/bundled/stb_image.h:7755:13: warning: ‘int stbi_is_16_bit_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 7755 | STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *c, void *user)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7748:13: warning: ‘int stbi_is_16_bit_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 7748 | STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7741:13: warning: ‘int stbi_info_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7741 | STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7734:13: warning: ‘int stbi_info_from_memory(const stbi_uc*, int, int*, int*, int*)’ defined but not used [-Wunused-function]
 7734 | STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7712:13: warning: ‘int stbi_is_16_bit(const char*)’ defined but not used [-Wunused-function]
 7712 | STBIDEF int stbi_is_16_bit(char const *filename)
      |             ^~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7691:13: warning: ‘int stbi_info(const char*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7691 | STBIDEF int stbi_info(char const *filename, int *x, int *y, int *comp)
      |             ^~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5019:14: warning: ‘void stbi_convert_iphone_png_to_rgb_thread(int)’ defined but not used [-Wunused-function]
 5019 | STBIDEF void stbi_convert_iphone_png_to_rgb_thread(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5013:14: warning: ‘void stbi_set_unpremultiply_on_load_thread(int)’ defined but not used [-Wunused-function]
 5013 | STBIDEF void stbi_set_unpremultiply_on_load_thread(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5001:14: warning: ‘void stbi_convert_iphone_png_to_rgb(int)’ defined but not used [-Wunused-function]
 5001 | STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4996:14: warning: ‘void stbi_set_unpremultiply_on_load(int)’ defined but not used [-Wunused-function]
 4996 | STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4584:13: warning: ‘int stbi_zlib_decode_noheader_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4584 | STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4568:15: warning: ‘char* stbi_zlib_decode_noheader_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4568 | STBIDEF char *stbi_zlib_decode_noheader_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4557:13: warning: ‘int stbi_zlib_decode_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4557 | STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, char const *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4536:15: warning: ‘char* stbi_zlib_decode_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4536 | STBIDEF char *stbi_zlib_decode_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1582:16: warning: ‘void stbi_hdr_to_ldr_scale(float)’ defined but not used [-Wunused-function]
 1582 | STBIDEF void   stbi_hdr_to_ldr_scale(float scale) { stbi__h2l_scale_i = 1/scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1581:16: warning: ‘void stbi_hdr_to_ldr_gamma(float)’ defined but not used [-Wunused-function]
 1581 | STBIDEF void   stbi_hdr_to_ldr_gamma(float gamma) { stbi__h2l_gamma_i = 1/gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1576:16: warning: ‘void stbi_ldr_to_hdr_scale(float)’ defined but not used [-Wunused-function]
 1576 | STBIDEF void   stbi_ldr_to_hdr_scale(float scale) { stbi__l2h_scale = scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1575:16: warning: ‘void stbi_ldr_to_hdr_gamma(float)’ defined but not used [-Wunused-function]
 1575 | STBIDEF void   stbi_ldr_to_hdr_gamma(float gamma) { stbi__l2h_gamma = gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1559:18: warning: ‘int stbi_is_hdr_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 1559 | STBIDEF int      stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1531:18: warning: ‘int stbi_is_hdr(const char*)’ defined but not used [-Wunused-function]
 1531 | STBIDEF int      stbi_is_hdr          (char const *filename)
      |                  ^~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1517:13: warning: ‘int stbi_is_hdr_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 1517 | STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1493:16: warning: ‘float* stbi_loadf(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1493 | STBIDEF float *stbi_loadf(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1485:16: warning: ‘float* stbi_loadf_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1485 | STBIDEF float *stbi_loadf_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1478:16: warning: ‘float* stbi_loadf_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1478 | STBIDEF float *stbi_loadf_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1444:18: warning: ‘stbi_uc* stbi_load_gif_from_memory(const stbi_uc*, int, int**, int*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1444 | STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1436:18: warning: ‘stbi_uc* stbi_load_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1436 | STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1429:18: warning: ‘stbi_uc* stbi_load_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1429 | STBIDEF stbi_uc *stbi_load_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1422:18: warning: ‘stbi_us* stbi_load_16_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1422 | STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1415:18: warning: ‘stbi_us* stbi_load_16_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1415 | STBIDEF stbi_us *stbi_load_16_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1402:18: warning: ‘stbi_us* stbi_load_16(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1402 | STBIDEF stbi_us *stbi_load_16(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1126:14: warning: ‘void stbi_set_flip_vertically_on_load_thread(int)’ defined but not used [-Wunused-function]
 1126 | STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1116:14: warning: ‘void stbi_set_flip_vertically_on_load(int)’ defined but not used [-Wunused-function]
 1116 | STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
g++ -std=gnu++17 -I"/usr/include/R" -DNDEBUG  -I'/usr/local/lib/R/library/Rcpp/include' -I'/usr/local/lib/R/library/RcppArmadillo/include' -I'/usr/local/lib/R/library/RcppEnsmallen/include' -I/usr/local/include   -I. -I../inst/include -fopenmp -fpic  -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer    -c pca.cpp -o pca.o
In file included from ../inst/include/mlpack/core/stb/stb.hpp:80,
                 from ../inst/include/mlpack/core.hpp:38,
                 from ../inst/include/mlpack/methods/pca/pca_main.cpp:13,
                 from pca.cpp:9:
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1607:14: warning: ‘int stbi_write_jpg_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1607 | STBIWDEF int stbi_write_jpg_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int quality)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1231:14: warning: ‘int stbi_write_png_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1231 | STBIWDEF int stbi_write_png_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int stride_bytes)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:787:14: warning: ‘int stbi_write_hdr_to_func(void (*)(void*, void*, int), void*, int, int, int, const float*)’ defined but not used [-Wunused-function]
  787 | STBIWDEF int stbi_write_hdr_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const float *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:611:14: warning: ‘int stbi_write_tga_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  611 | STBIWDEF int stbi_write_tga_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:512:14: warning: ‘int stbi_write_bmp_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  512 | STBIWDEF int stbi_write_bmp_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:262:15: warning: ‘void stbi_flip_vertically_on_write(int)’ defined but not used [-Wunused-function]
  262 | STBIWDEF void stbi_flip_vertically_on_write(int flag)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ../inst/include/mlpack/core/stb/stb.hpp:79:
../inst/include/mlpack/core/stb/bundled/stb_image.h:7755:13: warning: ‘int stbi_is_16_bit_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 7755 | STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *c, void *user)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7748:13: warning: ‘int stbi_is_16_bit_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 7748 | STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7741:13: warning: ‘int stbi_info_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7741 | STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7734:13: warning: ‘int stbi_info_from_memory(const stbi_uc*, int, int*, int*, int*)’ defined but not used [-Wunused-function]
 7734 | STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7712:13: warning: ‘int stbi_is_16_bit(const char*)’ defined but not used [-Wunused-function]
 7712 | STBIDEF int stbi_is_16_bit(char const *filename)
      |             ^~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7691:13: warning: ‘int stbi_info(const char*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7691 | STBIDEF int stbi_info(char const *filename, int *x, int *y, int *comp)
      |             ^~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5019:14: warning: ‘void stbi_convert_iphone_png_to_rgb_thread(int)’ defined but not used [-Wunused-function]
 5019 | STBIDEF void stbi_convert_iphone_png_to_rgb_thread(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5013:14: warning: ‘void stbi_set_unpremultiply_on_load_thread(int)’ defined but not used [-Wunused-function]
 5013 | STBIDEF void stbi_set_unpremultiply_on_load_thread(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5001:14: warning: ‘void stbi_convert_iphone_png_to_rgb(int)’ defined but not used [-Wunused-function]
 5001 | STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4996:14: warning: ‘void stbi_set_unpremultiply_on_load(int)’ defined but not used [-Wunused-function]
 4996 | STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4584:13: warning: ‘int stbi_zlib_decode_noheader_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4584 | STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4568:15: warning: ‘char* stbi_zlib_decode_noheader_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4568 | STBIDEF char *stbi_zlib_decode_noheader_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4557:13: warning: ‘int stbi_zlib_decode_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4557 | STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, char const *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4536:15: warning: ‘char* stbi_zlib_decode_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4536 | STBIDEF char *stbi_zlib_decode_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1582:16: warning: ‘void stbi_hdr_to_ldr_scale(float)’ defined but not used [-Wunused-function]
 1582 | STBIDEF void   stbi_hdr_to_ldr_scale(float scale) { stbi__h2l_scale_i = 1/scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1581:16: warning: ‘void stbi_hdr_to_ldr_gamma(float)’ defined but not used [-Wunused-function]
 1581 | STBIDEF void   stbi_hdr_to_ldr_gamma(float gamma) { stbi__h2l_gamma_i = 1/gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1576:16: warning: ‘void stbi_ldr_to_hdr_scale(float)’ defined but not used [-Wunused-function]
 1576 | STBIDEF void   stbi_ldr_to_hdr_scale(float scale) { stbi__l2h_scale = scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1575:16: warning: ‘void stbi_ldr_to_hdr_gamma(float)’ defined but not used [-Wunused-function]
 1575 | STBIDEF void   stbi_ldr_to_hdr_gamma(float gamma) { stbi__l2h_gamma = gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1559:18: warning: ‘int stbi_is_hdr_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 1559 | STBIDEF int      stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1531:18: warning: ‘int stbi_is_hdr(const char*)’ defined but not used [-Wunused-function]
 1531 | STBIDEF int      stbi_is_hdr          (char const *filename)
      |                  ^~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1517:13: warning: ‘int stbi_is_hdr_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 1517 | STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1493:16: warning: ‘float* stbi_loadf(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1493 | STBIDEF float *stbi_loadf(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1485:16: warning: ‘float* stbi_loadf_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1485 | STBIDEF float *stbi_loadf_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1478:16: warning: ‘float* stbi_loadf_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1478 | STBIDEF float *stbi_loadf_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1444:18: warning: ‘stbi_uc* stbi_load_gif_from_memory(const stbi_uc*, int, int**, int*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1444 | STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1436:18: warning: ‘stbi_uc* stbi_load_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1436 | STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1429:18: warning: ‘stbi_uc* stbi_load_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1429 | STBIDEF stbi_uc *stbi_load_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1422:18: warning: ‘stbi_us* stbi_load_16_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1422 | STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1415:18: warning: ‘stbi_us* stbi_load_16_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1415 | STBIDEF stbi_us *stbi_load_16_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1402:18: warning: ‘stbi_us* stbi_load_16(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1402 | STBIDEF stbi_us *stbi_load_16(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1126:14: warning: ‘void stbi_set_flip_vertically_on_load_thread(int)’ defined but not used [-Wunused-function]
 1126 | STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1116:14: warning: ‘void stbi_set_flip_vertically_on_load(int)’ defined but not used [-Wunused-function]
 1116 | STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
g++ -std=gnu++17 -I"/usr/include/R" -DNDEBUG  -I'/usr/local/lib/R/library/Rcpp/include' -I'/usr/local/lib/R/library/RcppArmadillo/include' -I'/usr/local/lib/R/library/RcppEnsmallen/include' -I/usr/local/include   -I. -I../inst/include -fopenmp -fpic  -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer    -c perceptron.cpp -o perceptron.o
In file included from ../inst/include/mlpack/core/stb/stb.hpp:80,
                 from ../inst/include/mlpack/core.hpp:38,
                 from ../inst/include/mlpack/methods/perceptron/perceptron_main.cpp:15,
                 from perceptron.cpp:9:
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1607:14: warning: ‘int stbi_write_jpg_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1607 | STBIWDEF int stbi_write_jpg_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int quality)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1231:14: warning: ‘int stbi_write_png_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1231 | STBIWDEF int stbi_write_png_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int stride_bytes)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:787:14: warning: ‘int stbi_write_hdr_to_func(void (*)(void*, void*, int), void*, int, int, int, const float*)’ defined but not used [-Wunused-function]
  787 | STBIWDEF int stbi_write_hdr_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const float *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:611:14: warning: ‘int stbi_write_tga_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  611 | STBIWDEF int stbi_write_tga_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:512:14: warning: ‘int stbi_write_bmp_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  512 | STBIWDEF int stbi_write_bmp_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:262:15: warning: ‘void stbi_flip_vertically_on_write(int)’ defined but not used [-Wunused-function]
  262 | STBIWDEF void stbi_flip_vertically_on_write(int flag)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ../inst/include/mlpack/core/stb/stb.hpp:79:
../inst/include/mlpack/core/stb/bundled/stb_image.h:7755:13: warning: ‘int stbi_is_16_bit_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 7755 | STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *c, void *user)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7748:13: warning: ‘int stbi_is_16_bit_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 7748 | STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7741:13: warning: ‘int stbi_info_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7741 | STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7734:13: warning: ‘int stbi_info_from_memory(const stbi_uc*, int, int*, int*, int*)’ defined but not used [-Wunused-function]
 7734 | STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7712:13: warning: ‘int stbi_is_16_bit(const char*)’ defined but not used [-Wunused-function]
 7712 | STBIDEF int stbi_is_16_bit(char const *filename)
      |             ^~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7691:13: warning: ‘int stbi_info(const char*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7691 | STBIDEF int stbi_info(char const *filename, int *x, int *y, int *comp)
      |             ^~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5019:14: warning: ‘void stbi_convert_iphone_png_to_rgb_thread(int)’ defined but not used [-Wunused-function]
 5019 | STBIDEF void stbi_convert_iphone_png_to_rgb_thread(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5013:14: warning: ‘void stbi_set_unpremultiply_on_load_thread(int)’ defined but not used [-Wunused-function]
 5013 | STBIDEF void stbi_set_unpremultiply_on_load_thread(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5001:14: warning: ‘void stbi_convert_iphone_png_to_rgb(int)’ defined but not used [-Wunused-function]
 5001 | STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4996:14: warning: ‘void stbi_set_unpremultiply_on_load(int)’ defined but not used [-Wunused-function]
 4996 | STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4584:13: warning: ‘int stbi_zlib_decode_noheader_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4584 | STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4568:15: warning: ‘char* stbi_zlib_decode_noheader_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4568 | STBIDEF char *stbi_zlib_decode_noheader_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4557:13: warning: ‘int stbi_zlib_decode_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4557 | STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, char const *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4536:15: warning: ‘char* stbi_zlib_decode_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4536 | STBIDEF char *stbi_zlib_decode_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1582:16: warning: ‘void stbi_hdr_to_ldr_scale(float)’ defined but not used [-Wunused-function]
 1582 | STBIDEF void   stbi_hdr_to_ldr_scale(float scale) { stbi__h2l_scale_i = 1/scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1581:16: warning: ‘void stbi_hdr_to_ldr_gamma(float)’ defined but not used [-Wunused-function]
 1581 | STBIDEF void   stbi_hdr_to_ldr_gamma(float gamma) { stbi__h2l_gamma_i = 1/gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1576:16: warning: ‘void stbi_ldr_to_hdr_scale(float)’ defined but not used [-Wunused-function]
 1576 | STBIDEF void   stbi_ldr_to_hdr_scale(float scale) { stbi__l2h_scale = scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1575:16: warning: ‘void stbi_ldr_to_hdr_gamma(float)’ defined but not used [-Wunused-function]
 1575 | STBIDEF void   stbi_ldr_to_hdr_gamma(float gamma) { stbi__l2h_gamma = gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1559:18: warning: ‘int stbi_is_hdr_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 1559 | STBIDEF int      stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1531:18: warning: ‘int stbi_is_hdr(const char*)’ defined but not used [-Wunused-function]
 1531 | STBIDEF int      stbi_is_hdr          (char const *filename)
      |                  ^~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1517:13: warning: ‘int stbi_is_hdr_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 1517 | STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1493:16: warning: ‘float* stbi_loadf(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1493 | STBIDEF float *stbi_loadf(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1485:16: warning: ‘float* stbi_loadf_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1485 | STBIDEF float *stbi_loadf_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1478:16: warning: ‘float* stbi_loadf_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1478 | STBIDEF float *stbi_loadf_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1444:18: warning: ‘stbi_uc* stbi_load_gif_from_memory(const stbi_uc*, int, int**, int*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1444 | STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1436:18: warning: ‘stbi_uc* stbi_load_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1436 | STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1429:18: warning: ‘stbi_uc* stbi_load_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1429 | STBIDEF stbi_uc *stbi_load_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1422:18: warning: ‘stbi_us* stbi_load_16_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1422 | STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1415:18: warning: ‘stbi_us* stbi_load_16_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1415 | STBIDEF stbi_us *stbi_load_16_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1402:18: warning: ‘stbi_us* stbi_load_16(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1402 | STBIDEF stbi_us *stbi_load_16(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1126:14: warning: ‘void stbi_set_flip_vertically_on_load_thread(int)’ defined but not used [-Wunused-function]
 1126 | STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1116:14: warning: ‘void stbi_set_flip_vertically_on_load(int)’ defined but not used [-Wunused-function]
 1116 | STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
g++ -std=gnu++17 -I"/usr/include/R" -DNDEBUG  -I'/usr/local/lib/R/library/Rcpp/include' -I'/usr/local/lib/R/library/RcppArmadillo/include' -I'/usr/local/lib/R/library/RcppEnsmallen/include' -I/usr/local/include   -I. -I../inst/include -fopenmp -fpic  -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer    -c preprocess_binarize.cpp -o preprocess_binarize.o
In file included from ../inst/include/mlpack/core/stb/stb.hpp:80,
                 from ../inst/include/mlpack/core.hpp:38,
                 from ../inst/include/mlpack/methods/preprocess/preprocess_binarize_main.cpp:12,
                 from preprocess_binarize.cpp:9:
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1607:14: warning: ‘int stbi_write_jpg_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1607 | STBIWDEF int stbi_write_jpg_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int quality)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1231:14: warning: ‘int stbi_write_png_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1231 | STBIWDEF int stbi_write_png_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int stride_bytes)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:787:14: warning: ‘int stbi_write_hdr_to_func(void (*)(void*, void*, int), void*, int, int, int, const float*)’ defined but not used [-Wunused-function]
  787 | STBIWDEF int stbi_write_hdr_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const float *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:611:14: warning: ‘int stbi_write_tga_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  611 | STBIWDEF int stbi_write_tga_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:512:14: warning: ‘int stbi_write_bmp_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  512 | STBIWDEF int stbi_write_bmp_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:262:15: warning: ‘void stbi_flip_vertically_on_write(int)’ defined but not used [-Wunused-function]
  262 | STBIWDEF void stbi_flip_vertically_on_write(int flag)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ../inst/include/mlpack/core/stb/stb.hpp:79:
../inst/include/mlpack/core/stb/bundled/stb_image.h:7755:13: warning: ‘int stbi_is_16_bit_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 7755 | STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *c, void *user)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7748:13: warning: ‘int stbi_is_16_bit_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 7748 | STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7741:13: warning: ‘int stbi_info_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7741 | STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7734:13: warning: ‘int stbi_info_from_memory(const stbi_uc*, int, int*, int*, int*)’ defined but not used [-Wunused-function]
 7734 | STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7712:13: warning: ‘int stbi_is_16_bit(const char*)’ defined but not used [-Wunused-function]
 7712 | STBIDEF int stbi_is_16_bit(char const *filename)
      |             ^~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7691:13: warning: ‘int stbi_info(const char*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7691 | STBIDEF int stbi_info(char const *filename, int *x, int *y, int *comp)
      |             ^~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5019:14: warning: ‘void stbi_convert_iphone_png_to_rgb_thread(int)’ defined but not used [-Wunused-function]
 5019 | STBIDEF void stbi_convert_iphone_png_to_rgb_thread(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5013:14: warning: ‘void stbi_set_unpremultiply_on_load_thread(int)’ defined but not used [-Wunused-function]
 5013 | STBIDEF void stbi_set_unpremultiply_on_load_thread(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5001:14: warning: ‘void stbi_convert_iphone_png_to_rgb(int)’ defined but not used [-Wunused-function]
 5001 | STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4996:14: warning: ‘void stbi_set_unpremultiply_on_load(int)’ defined but not used [-Wunused-function]
 4996 | STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4584:13: warning: ‘int stbi_zlib_decode_noheader_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4584 | STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4568:15: warning: ‘char* stbi_zlib_decode_noheader_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4568 | STBIDEF char *stbi_zlib_decode_noheader_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4557:13: warning: ‘int stbi_zlib_decode_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4557 | STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, char const *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4536:15: warning: ‘char* stbi_zlib_decode_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4536 | STBIDEF char *stbi_zlib_decode_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1582:16: warning: ‘void stbi_hdr_to_ldr_scale(float)’ defined but not used [-Wunused-function]
 1582 | STBIDEF void   stbi_hdr_to_ldr_scale(float scale) { stbi__h2l_scale_i = 1/scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1581:16: warning: ‘void stbi_hdr_to_ldr_gamma(float)’ defined but not used [-Wunused-function]
 1581 | STBIDEF void   stbi_hdr_to_ldr_gamma(float gamma) { stbi__h2l_gamma_i = 1/gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1576:16: warning: ‘void stbi_ldr_to_hdr_scale(float)’ defined but not used [-Wunused-function]
 1576 | STBIDEF void   stbi_ldr_to_hdr_scale(float scale) { stbi__l2h_scale = scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1575:16: warning: ‘void stbi_ldr_to_hdr_gamma(float)’ defined but not used [-Wunused-function]
 1575 | STBIDEF void   stbi_ldr_to_hdr_gamma(float gamma) { stbi__l2h_gamma = gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1559:18: warning: ‘int stbi_is_hdr_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 1559 | STBIDEF int      stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1531:18: warning: ‘int stbi_is_hdr(const char*)’ defined but not used [-Wunused-function]
 1531 | STBIDEF int      stbi_is_hdr          (char const *filename)
      |                  ^~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1517:13: warning: ‘int stbi_is_hdr_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 1517 | STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1493:16: warning: ‘float* stbi_loadf(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1493 | STBIDEF float *stbi_loadf(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1485:16: warning: ‘float* stbi_loadf_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1485 | STBIDEF float *stbi_loadf_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1478:16: warning: ‘float* stbi_loadf_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1478 | STBIDEF float *stbi_loadf_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1444:18: warning: ‘stbi_uc* stbi_load_gif_from_memory(const stbi_uc*, int, int**, int*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1444 | STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1436:18: warning: ‘stbi_uc* stbi_load_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1436 | STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1429:18: warning: ‘stbi_uc* stbi_load_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1429 | STBIDEF stbi_uc *stbi_load_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1422:18: warning: ‘stbi_us* stbi_load_16_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1422 | STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1415:18: warning: ‘stbi_us* stbi_load_16_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1415 | STBIDEF stbi_us *stbi_load_16_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1402:18: warning: ‘stbi_us* stbi_load_16(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1402 | STBIDEF stbi_us *stbi_load_16(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1126:14: warning: ‘void stbi_set_flip_vertically_on_load_thread(int)’ defined but not used [-Wunused-function]
 1126 | STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1116:14: warning: ‘void stbi_set_flip_vertically_on_load(int)’ defined but not used [-Wunused-function]
 1116 | STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
g++ -std=gnu++17 -I"/usr/include/R" -DNDEBUG  -I'/usr/local/lib/R/library/Rcpp/include' -I'/usr/local/lib/R/library/RcppArmadillo/include' -I'/usr/local/lib/R/library/RcppEnsmallen/include' -I/usr/local/include   -I. -I../inst/include -fopenmp -fpic  -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer    -c preprocess_describe.cpp -o preprocess_describe.o
In file included from ../inst/include/mlpack/core/stb/stb.hpp:80,
                 from ../inst/include/mlpack/core.hpp:38,
                 from ../inst/include/mlpack/methods/preprocess/preprocess_describe_main.cpp:12,
                 from preprocess_describe.cpp:9:
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1607:14: warning: ‘int stbi_write_jpg_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1607 | STBIWDEF int stbi_write_jpg_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int quality)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1231:14: warning: ‘int stbi_write_png_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1231 | STBIWDEF int stbi_write_png_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int stride_bytes)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:787:14: warning: ‘int stbi_write_hdr_to_func(void (*)(void*, void*, int), void*, int, int, int, const float*)’ defined but not used [-Wunused-function]
  787 | STBIWDEF int stbi_write_hdr_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const float *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:611:14: warning: ‘int stbi_write_tga_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  611 | STBIWDEF int stbi_write_tga_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:512:14: warning: ‘int stbi_write_bmp_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  512 | STBIWDEF int stbi_write_bmp_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:262:15: warning: ‘void stbi_flip_vertically_on_write(int)’ defined but not used [-Wunused-function]
  262 | STBIWDEF void stbi_flip_vertically_on_write(int flag)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ../inst/include/mlpack/core/stb/stb.hpp:79:
../inst/include/mlpack/core/stb/bundled/stb_image.h:7755:13: warning: ‘int stbi_is_16_bit_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 7755 | STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *c, void *user)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7748:13: warning: ‘int stbi_is_16_bit_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 7748 | STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7741:13: warning: ‘int stbi_info_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7741 | STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7734:13: warning: ‘int stbi_info_from_memory(const stbi_uc*, int, int*, int*, int*)’ defined but not used [-Wunused-function]
 7734 | STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7712:13: warning: ‘int stbi_is_16_bit(const char*)’ defined but not used [-Wunused-function]
 7712 | STBIDEF int stbi_is_16_bit(char const *filename)
      |             ^~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7691:13: warning: ‘int stbi_info(const char*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7691 | STBIDEF int stbi_info(char const *filename, int *x, int *y, int *comp)
      |             ^~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5019:14: warning: ‘void stbi_convert_iphone_png_to_rgb_thread(int)’ defined but not used [-Wunused-function]
 5019 | STBIDEF void stbi_convert_iphone_png_to_rgb_thread(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5013:14: warning: ‘void stbi_set_unpremultiply_on_load_thread(int)’ defined but not used [-Wunused-function]
 5013 | STBIDEF void stbi_set_unpremultiply_on_load_thread(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5001:14: warning: ‘void stbi_convert_iphone_png_to_rgb(int)’ defined but not used [-Wunused-function]
 5001 | STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4996:14: warning: ‘void stbi_set_unpremultiply_on_load(int)’ defined but not used [-Wunused-function]
 4996 | STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4584:13: warning: ‘int stbi_zlib_decode_noheader_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4584 | STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4568:15: warning: ‘char* stbi_zlib_decode_noheader_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4568 | STBIDEF char *stbi_zlib_decode_noheader_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4557:13: warning: ‘int stbi_zlib_decode_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4557 | STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, char const *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4536:15: warning: ‘char* stbi_zlib_decode_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4536 | STBIDEF char *stbi_zlib_decode_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1582:16: warning: ‘void stbi_hdr_to_ldr_scale(float)’ defined but not used [-Wunused-function]
 1582 | STBIDEF void   stbi_hdr_to_ldr_scale(float scale) { stbi__h2l_scale_i = 1/scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1581:16: warning: ‘void stbi_hdr_to_ldr_gamma(float)’ defined but not used [-Wunused-function]
 1581 | STBIDEF void   stbi_hdr_to_ldr_gamma(float gamma) { stbi__h2l_gamma_i = 1/gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1576:16: warning: ‘void stbi_ldr_to_hdr_scale(float)’ defined but not used [-Wunused-function]
 1576 | STBIDEF void   stbi_ldr_to_hdr_scale(float scale) { stbi__l2h_scale = scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1575:16: warning: ‘void stbi_ldr_to_hdr_gamma(float)’ defined but not used [-Wunused-function]
 1575 | STBIDEF void   stbi_ldr_to_hdr_gamma(float gamma) { stbi__l2h_gamma = gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1559:18: warning: ‘int stbi_is_hdr_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 1559 | STBIDEF int      stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1531:18: warning: ‘int stbi_is_hdr(const char*)’ defined but not used [-Wunused-function]
 1531 | STBIDEF int      stbi_is_hdr          (char const *filename)
      |                  ^~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1517:13: warning: ‘int stbi_is_hdr_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 1517 | STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1493:16: warning: ‘float* stbi_loadf(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1493 | STBIDEF float *stbi_loadf(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1485:16: warning: ‘float* stbi_loadf_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1485 | STBIDEF float *stbi_loadf_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1478:16: warning: ‘float* stbi_loadf_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1478 | STBIDEF float *stbi_loadf_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1444:18: warning: ‘stbi_uc* stbi_load_gif_from_memory(const stbi_uc*, int, int**, int*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1444 | STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1436:18: warning: ‘stbi_uc* stbi_load_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1436 | STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1429:18: warning: ‘stbi_uc* stbi_load_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1429 | STBIDEF stbi_uc *stbi_load_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1422:18: warning: ‘stbi_us* stbi_load_16_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1422 | STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1415:18: warning: ‘stbi_us* stbi_load_16_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1415 | STBIDEF stbi_us *stbi_load_16_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1402:18: warning: ‘stbi_us* stbi_load_16(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1402 | STBIDEF stbi_us *stbi_load_16(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1126:14: warning: ‘void stbi_set_flip_vertically_on_load_thread(int)’ defined but not used [-Wunused-function]
 1126 | STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1116:14: warning: ‘void stbi_set_flip_vertically_on_load(int)’ defined but not used [-Wunused-function]
 1116 | STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
g++ -std=gnu++17 -I"/usr/include/R" -DNDEBUG  -I'/usr/local/lib/R/library/Rcpp/include' -I'/usr/local/lib/R/library/RcppArmadillo/include' -I'/usr/local/lib/R/library/RcppEnsmallen/include' -I/usr/local/include   -I. -I../inst/include -fopenmp -fpic  -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer    -c preprocess_one_hot_encoding.cpp -o preprocess_one_hot_encoding.o
In file included from ../inst/include/mlpack/core/stb/stb.hpp:80,
                 from ../inst/include/mlpack/core.hpp:38,
                 from ../inst/include/mlpack/methods/preprocess/preprocess_one_hot_encoding_main.cpp:12,
                 from preprocess_one_hot_encoding.cpp:9:
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1607:14: warning: ‘int stbi_write_jpg_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1607 | STBIWDEF int stbi_write_jpg_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int quality)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1231:14: warning: ‘int stbi_write_png_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1231 | STBIWDEF int stbi_write_png_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int stride_bytes)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:787:14: warning: ‘int stbi_write_hdr_to_func(void (*)(void*, void*, int), void*, int, int, int, const float*)’ defined but not used [-Wunused-function]
  787 | STBIWDEF int stbi_write_hdr_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const float *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:611:14: warning: ‘int stbi_write_tga_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  611 | STBIWDEF int stbi_write_tga_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:512:14: warning: ‘int stbi_write_bmp_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  512 | STBIWDEF int stbi_write_bmp_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:262:15: warning: ‘void stbi_flip_vertically_on_write(int)’ defined but not used [-Wunused-function]
  262 | STBIWDEF void stbi_flip_vertically_on_write(int flag)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ../inst/include/mlpack/core/stb/stb.hpp:79:
../inst/include/mlpack/core/stb/bundled/stb_image.h:7755:13: warning: ‘int stbi_is_16_bit_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 7755 | STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *c, void *user)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7748:13: warning: ‘int stbi_is_16_bit_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 7748 | STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7741:13: warning: ‘int stbi_info_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7741 | STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7734:13: warning: ‘int stbi_info_from_memory(const stbi_uc*, int, int*, int*, int*)’ defined but not used [-Wunused-function]
 7734 | STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7712:13: warning: ‘int stbi_is_16_bit(const char*)’ defined but not used [-Wunused-function]
 7712 | STBIDEF int stbi_is_16_bit(char const *filename)
      |             ^~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7691:13: warning: ‘int stbi_info(const char*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7691 | STBIDEF int stbi_info(char const *filename, int *x, int *y, int *comp)
      |             ^~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5019:14: warning: ‘void stbi_convert_iphone_png_to_rgb_thread(int)’ defined but not used [-Wunused-function]
 5019 | STBIDEF void stbi_convert_iphone_png_to_rgb_thread(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5013:14: warning: ‘void stbi_set_unpremultiply_on_load_thread(int)’ defined but not used [-Wunused-function]
 5013 | STBIDEF void stbi_set_unpremultiply_on_load_thread(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5001:14: warning: ‘void stbi_convert_iphone_png_to_rgb(int)’ defined but not used [-Wunused-function]
 5001 | STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4996:14: warning: ‘void stbi_set_unpremultiply_on_load(int)’ defined but not used [-Wunused-function]
 4996 | STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4584:13: warning: ‘int stbi_zlib_decode_noheader_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4584 | STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4568:15: warning: ‘char* stbi_zlib_decode_noheader_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4568 | STBIDEF char *stbi_zlib_decode_noheader_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4557:13: warning: ‘int stbi_zlib_decode_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4557 | STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, char const *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4536:15: warning: ‘char* stbi_zlib_decode_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4536 | STBIDEF char *stbi_zlib_decode_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1582:16: warning: ‘void stbi_hdr_to_ldr_scale(float)’ defined but not used [-Wunused-function]
 1582 | STBIDEF void   stbi_hdr_to_ldr_scale(float scale) { stbi__h2l_scale_i = 1/scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1581:16: warning: ‘void stbi_hdr_to_ldr_gamma(float)’ defined but not used [-Wunused-function]
 1581 | STBIDEF void   stbi_hdr_to_ldr_gamma(float gamma) { stbi__h2l_gamma_i = 1/gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1576:16: warning: ‘void stbi_ldr_to_hdr_scale(float)’ defined but not used [-Wunused-function]
 1576 | STBIDEF void   stbi_ldr_to_hdr_scale(float scale) { stbi__l2h_scale = scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1575:16: warning: ‘void stbi_ldr_to_hdr_gamma(float)’ defined but not used [-Wunused-function]
 1575 | STBIDEF void   stbi_ldr_to_hdr_gamma(float gamma) { stbi__l2h_gamma = gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1559:18: warning: ‘int stbi_is_hdr_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 1559 | STBIDEF int      stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1531:18: warning: ‘int stbi_is_hdr(const char*)’ defined but not used [-Wunused-function]
 1531 | STBIDEF int      stbi_is_hdr          (char const *filename)
      |                  ^~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1517:13: warning: ‘int stbi_is_hdr_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 1517 | STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1493:16: warning: ‘float* stbi_loadf(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1493 | STBIDEF float *stbi_loadf(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1485:16: warning: ‘float* stbi_loadf_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1485 | STBIDEF float *stbi_loadf_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1478:16: warning: ‘float* stbi_loadf_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1478 | STBIDEF float *stbi_loadf_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1444:18: warning: ‘stbi_uc* stbi_load_gif_from_memory(const stbi_uc*, int, int**, int*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1444 | STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1436:18: warning: ‘stbi_uc* stbi_load_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1436 | STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1429:18: warning: ‘stbi_uc* stbi_load_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1429 | STBIDEF stbi_uc *stbi_load_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1422:18: warning: ‘stbi_us* stbi_load_16_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1422 | STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1415:18: warning: ‘stbi_us* stbi_load_16_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1415 | STBIDEF stbi_us *stbi_load_16_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1402:18: warning: ‘stbi_us* stbi_load_16(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1402 | STBIDEF stbi_us *stbi_load_16(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1126:14: warning: ‘void stbi_set_flip_vertically_on_load_thread(int)’ defined but not used [-Wunused-function]
 1126 | STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1116:14: warning: ‘void stbi_set_flip_vertically_on_load(int)’ defined but not used [-Wunused-function]
 1116 | STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
g++ -std=gnu++17 -I"/usr/include/R" -DNDEBUG  -I'/usr/local/lib/R/library/Rcpp/include' -I'/usr/local/lib/R/library/RcppArmadillo/include' -I'/usr/local/lib/R/library/RcppEnsmallen/include' -I/usr/local/include   -I. -I../inst/include -fopenmp -fpic  -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer    -c preprocess_scale.cpp -o preprocess_scale.o
In file included from ../inst/include/mlpack/core/stb/stb.hpp:80,
                 from ../inst/include/mlpack/core.hpp:38,
                 from ../inst/include/mlpack/methods/preprocess/preprocess_scale_main.cpp:12,
                 from preprocess_scale.cpp:9:
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1607:14: warning: ‘int stbi_write_jpg_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1607 | STBIWDEF int stbi_write_jpg_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int quality)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1231:14: warning: ‘int stbi_write_png_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1231 | STBIWDEF int stbi_write_png_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int stride_bytes)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:787:14: warning: ‘int stbi_write_hdr_to_func(void (*)(void*, void*, int), void*, int, int, int, const float*)’ defined but not used [-Wunused-function]
  787 | STBIWDEF int stbi_write_hdr_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const float *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:611:14: warning: ‘int stbi_write_tga_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  611 | STBIWDEF int stbi_write_tga_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:512:14: warning: ‘int stbi_write_bmp_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  512 | STBIWDEF int stbi_write_bmp_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:262:15: warning: ‘void stbi_flip_vertically_on_write(int)’ defined but not used [-Wunused-function]
  262 | STBIWDEF void stbi_flip_vertically_on_write(int flag)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ../inst/include/mlpack/core/stb/stb.hpp:79:
../inst/include/mlpack/core/stb/bundled/stb_image.h:7755:13: warning: ‘int stbi_is_16_bit_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 7755 | STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *c, void *user)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7748:13: warning: ‘int stbi_is_16_bit_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 7748 | STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7741:13: warning: ‘int stbi_info_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7741 | STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7734:13: warning: ‘int stbi_info_from_memory(const stbi_uc*, int, int*, int*, int*)’ defined but not used [-Wunused-function]
 7734 | STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7712:13: warning: ‘int stbi_is_16_bit(const char*)’ defined but not used [-Wunused-function]
 7712 | STBIDEF int stbi_is_16_bit(char const *filename)
      |             ^~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7691:13: warning: ‘int stbi_info(const char*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7691 | STBIDEF int stbi_info(char const *filename, int *x, int *y, int *comp)
      |             ^~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5019:14: warning: ‘void stbi_convert_iphone_png_to_rgb_thread(int)’ defined but not used [-Wunused-function]
 5019 | STBIDEF void stbi_convert_iphone_png_to_rgb_thread(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5013:14: warning: ‘void stbi_set_unpremultiply_on_load_thread(int)’ defined but not used [-Wunused-function]
 5013 | STBIDEF void stbi_set_unpremultiply_on_load_thread(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5001:14: warning: ‘void stbi_convert_iphone_png_to_rgb(int)’ defined but not used [-Wunused-function]
 5001 | STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4996:14: warning: ‘void stbi_set_unpremultiply_on_load(int)’ defined but not used [-Wunused-function]
 4996 | STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4584:13: warning: ‘int stbi_zlib_decode_noheader_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4584 | STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4568:15: warning: ‘char* stbi_zlib_decode_noheader_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4568 | STBIDEF char *stbi_zlib_decode_noheader_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4557:13: warning: ‘int stbi_zlib_decode_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4557 | STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, char const *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4536:15: warning: ‘char* stbi_zlib_decode_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4536 | STBIDEF char *stbi_zlib_decode_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1582:16: warning: ‘void stbi_hdr_to_ldr_scale(float)’ defined but not used [-Wunused-function]
 1582 | STBIDEF void   stbi_hdr_to_ldr_scale(float scale) { stbi__h2l_scale_i = 1/scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1581:16: warning: ‘void stbi_hdr_to_ldr_gamma(float)’ defined but not used [-Wunused-function]
 1581 | STBIDEF void   stbi_hdr_to_ldr_gamma(float gamma) { stbi__h2l_gamma_i = 1/gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1576:16: warning: ‘void stbi_ldr_to_hdr_scale(float)’ defined but not used [-Wunused-function]
 1576 | STBIDEF void   stbi_ldr_to_hdr_scale(float scale) { stbi__l2h_scale = scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1575:16: warning: ‘void stbi_ldr_to_hdr_gamma(float)’ defined but not used [-Wunused-function]
 1575 | STBIDEF void   stbi_ldr_to_hdr_gamma(float gamma) { stbi__l2h_gamma = gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1559:18: warning: ‘int stbi_is_hdr_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 1559 | STBIDEF int      stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1531:18: warning: ‘int stbi_is_hdr(const char*)’ defined but not used [-Wunused-function]
 1531 | STBIDEF int      stbi_is_hdr          (char const *filename)
      |                  ^~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1517:13: warning: ‘int stbi_is_hdr_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 1517 | STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1493:16: warning: ‘float* stbi_loadf(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1493 | STBIDEF float *stbi_loadf(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1485:16: warning: ‘float* stbi_loadf_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1485 | STBIDEF float *stbi_loadf_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1478:16: warning: ‘float* stbi_loadf_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1478 | STBIDEF float *stbi_loadf_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1444:18: warning: ‘stbi_uc* stbi_load_gif_from_memory(const stbi_uc*, int, int**, int*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1444 | STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1436:18: warning: ‘stbi_uc* stbi_load_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1436 | STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1429:18: warning: ‘stbi_uc* stbi_load_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1429 | STBIDEF stbi_uc *stbi_load_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1422:18: warning: ‘stbi_us* stbi_load_16_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1422 | STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1415:18: warning: ‘stbi_us* stbi_load_16_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1415 | STBIDEF stbi_us *stbi_load_16_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1402:18: warning: ‘stbi_us* stbi_load_16(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1402 | STBIDEF stbi_us *stbi_load_16(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1126:14: warning: ‘void stbi_set_flip_vertically_on_load_thread(int)’ defined but not used [-Wunused-function]
 1126 | STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1116:14: warning: ‘void stbi_set_flip_vertically_on_load(int)’ defined but not used [-Wunused-function]
 1116 | STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
g++ -std=gnu++17 -I"/usr/include/R" -DNDEBUG  -I'/usr/local/lib/R/library/Rcpp/include' -I'/usr/local/lib/R/library/RcppArmadillo/include' -I'/usr/local/lib/R/library/RcppEnsmallen/include' -I/usr/local/include   -I. -I../inst/include -fopenmp -fpic  -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer    -c preprocess_split.cpp -o preprocess_split.o
In file included from ../inst/include/mlpack/core/stb/stb.hpp:80,
                 from ../inst/include/mlpack/core.hpp:38,
                 from ../inst/include/mlpack/methods/preprocess/preprocess_split_main.cpp:12,
                 from preprocess_split.cpp:9:
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1607:14: warning: ‘int stbi_write_jpg_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1607 | STBIWDEF int stbi_write_jpg_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int quality)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1231:14: warning: ‘int stbi_write_png_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1231 | STBIWDEF int stbi_write_png_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int stride_bytes)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:787:14: warning: ‘int stbi_write_hdr_to_func(void (*)(void*, void*, int), void*, int, int, int, const float*)’ defined but not used [-Wunused-function]
  787 | STBIWDEF int stbi_write_hdr_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const float *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:611:14: warning: ‘int stbi_write_tga_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  611 | STBIWDEF int stbi_write_tga_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:512:14: warning: ‘int stbi_write_bmp_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  512 | STBIWDEF int stbi_write_bmp_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:262:15: warning: ‘void stbi_flip_vertically_on_write(int)’ defined but not used [-Wunused-function]
  262 | STBIWDEF void stbi_flip_vertically_on_write(int flag)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ../inst/include/mlpack/core/stb/stb.hpp:79:
../inst/include/mlpack/core/stb/bundled/stb_image.h:7755:13: warning: ‘int stbi_is_16_bit_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 7755 | STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *c, void *user)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7748:13: warning: ‘int stbi_is_16_bit_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 7748 | STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7741:13: warning: ‘int stbi_info_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7741 | STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7734:13: warning: ‘int stbi_info_from_memory(const stbi_uc*, int, int*, int*, int*)’ defined but not used [-Wunused-function]
 7734 | STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7712:13: warning: ‘int stbi_is_16_bit(const char*)’ defined but not used [-Wunused-function]
 7712 | STBIDEF int stbi_is_16_bit(char const *filename)
      |             ^~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7691:13: warning: ‘int stbi_info(const char*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7691 | STBIDEF int stbi_info(char const *filename, int *x, int *y, int *comp)
      |             ^~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5019:14: warning: ‘void stbi_convert_iphone_png_to_rgb_thread(int)’ defined but not used [-Wunused-function]
 5019 | STBIDEF void stbi_convert_iphone_png_to_rgb_thread(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5013:14: warning: ‘void stbi_set_unpremultiply_on_load_thread(int)’ defined but not used [-Wunused-function]
 5013 | STBIDEF void stbi_set_unpremultiply_on_load_thread(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5001:14: warning: ‘void stbi_convert_iphone_png_to_rgb(int)’ defined but not used [-Wunused-function]
 5001 | STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4996:14: warning: ‘void stbi_set_unpremultiply_on_load(int)’ defined but not used [-Wunused-function]
 4996 | STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4584:13: warning: ‘int stbi_zlib_decode_noheader_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4584 | STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4568:15: warning: ‘char* stbi_zlib_decode_noheader_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4568 | STBIDEF char *stbi_zlib_decode_noheader_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4557:13: warning: ‘int stbi_zlib_decode_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4557 | STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, char const *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4536:15: warning: ‘char* stbi_zlib_decode_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4536 | STBIDEF char *stbi_zlib_decode_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1582:16: warning: ‘void stbi_hdr_to_ldr_scale(float)’ defined but not used [-Wunused-function]
 1582 | STBIDEF void   stbi_hdr_to_ldr_scale(float scale) { stbi__h2l_scale_i = 1/scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1581:16: warning: ‘void stbi_hdr_to_ldr_gamma(float)’ defined but not used [-Wunused-function]
 1581 | STBIDEF void   stbi_hdr_to_ldr_gamma(float gamma) { stbi__h2l_gamma_i = 1/gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1576:16: warning: ‘void stbi_ldr_to_hdr_scale(float)’ defined but not used [-Wunused-function]
 1576 | STBIDEF void   stbi_ldr_to_hdr_scale(float scale) { stbi__l2h_scale = scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1575:16: warning: ‘void stbi_ldr_to_hdr_gamma(float)’ defined but not used [-Wunused-function]
 1575 | STBIDEF void   stbi_ldr_to_hdr_gamma(float gamma) { stbi__l2h_gamma = gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1559:18: warning: ‘int stbi_is_hdr_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 1559 | STBIDEF int      stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1531:18: warning: ‘int stbi_is_hdr(const char*)’ defined but not used [-Wunused-function]
 1531 | STBIDEF int      stbi_is_hdr          (char const *filename)
      |                  ^~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1517:13: warning: ‘int stbi_is_hdr_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 1517 | STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1493:16: warning: ‘float* stbi_loadf(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1493 | STBIDEF float *stbi_loadf(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1485:16: warning: ‘float* stbi_loadf_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1485 | STBIDEF float *stbi_loadf_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1478:16: warning: ‘float* stbi_loadf_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1478 | STBIDEF float *stbi_loadf_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1444:18: warning: ‘stbi_uc* stbi_load_gif_from_memory(const stbi_uc*, int, int**, int*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1444 | STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1436:18: warning: ‘stbi_uc* stbi_load_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1436 | STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1429:18: warning: ‘stbi_uc* stbi_load_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1429 | STBIDEF stbi_uc *stbi_load_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1422:18: warning: ‘stbi_us* stbi_load_16_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1422 | STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1415:18: warning: ‘stbi_us* stbi_load_16_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1415 | STBIDEF stbi_us *stbi_load_16_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1402:18: warning: ‘stbi_us* stbi_load_16(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1402 | STBIDEF stbi_us *stbi_load_16(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1126:14: warning: ‘void stbi_set_flip_vertically_on_load_thread(int)’ defined but not used [-Wunused-function]
 1126 | STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1116:14: warning: ‘void stbi_set_flip_vertically_on_load(int)’ defined but not used [-Wunused-function]
 1116 | STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
g++ -std=gnu++17 -I"/usr/include/R" -DNDEBUG  -I'/usr/local/lib/R/library/Rcpp/include' -I'/usr/local/lib/R/library/RcppArmadillo/include' -I'/usr/local/lib/R/library/RcppEnsmallen/include' -I/usr/local/include   -I. -I../inst/include -fopenmp -fpic  -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer    -c r_util.cpp -o r_util.o
In file included from ../inst/include/mlpack/core/stb/stb.hpp:80,
                 from ../inst/include/mlpack/core/data/load_image.hpp:16,
                 from ../inst/include/mlpack/core/data/load.hpp:28,
                 from ../inst/include/mlpack/core/util/io.hpp:31,
                 from r_util.cpp:14:
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1607:14: warning: ‘int stbi_write_jpg_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1607 | STBIWDEF int stbi_write_jpg_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int quality)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1231:14: warning: ‘int stbi_write_png_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1231 | STBIWDEF int stbi_write_png_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int stride_bytes)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:787:14: warning: ‘int stbi_write_hdr_to_func(void (*)(void*, void*, int), void*, int, int, int, const float*)’ defined but not used [-Wunused-function]
  787 | STBIWDEF int stbi_write_hdr_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const float *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:611:14: warning: ‘int stbi_write_tga_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  611 | STBIWDEF int stbi_write_tga_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:512:14: warning: ‘int stbi_write_bmp_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  512 | STBIWDEF int stbi_write_bmp_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:262:15: warning: ‘void stbi_flip_vertically_on_write(int)’ defined but not used [-Wunused-function]
  262 | STBIWDEF void stbi_flip_vertically_on_write(int flag)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ../inst/include/mlpack/core/stb/stb.hpp:79:
../inst/include/mlpack/core/stb/bundled/stb_image.h:7755:13: warning: ‘int stbi_is_16_bit_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 7755 | STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *c, void *user)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7748:13: warning: ‘int stbi_is_16_bit_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 7748 | STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7741:13: warning: ‘int stbi_info_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7741 | STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7734:13: warning: ‘int stbi_info_from_memory(const stbi_uc*, int, int*, int*, int*)’ defined but not used [-Wunused-function]
 7734 | STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7712:13: warning: ‘int stbi_is_16_bit(const char*)’ defined but not used [-Wunused-function]
 7712 | STBIDEF int stbi_is_16_bit(char const *filename)
      |             ^~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7691:13: warning: ‘int stbi_info(const char*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7691 | STBIDEF int stbi_info(char const *filename, int *x, int *y, int *comp)
      |             ^~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5019:14: warning: ‘void stbi_convert_iphone_png_to_rgb_thread(int)’ defined but not used [-Wunused-function]
 5019 | STBIDEF void stbi_convert_iphone_png_to_rgb_thread(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5013:14: warning: ‘void stbi_set_unpremultiply_on_load_thread(int)’ defined but not used [-Wunused-function]
 5013 | STBIDEF void stbi_set_unpremultiply_on_load_thread(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5001:14: warning: ‘void stbi_convert_iphone_png_to_rgb(int)’ defined but not used [-Wunused-function]
 5001 | STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4996:14: warning: ‘void stbi_set_unpremultiply_on_load(int)’ defined but not used [-Wunused-function]
 4996 | STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4584:13: warning: ‘int stbi_zlib_decode_noheader_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4584 | STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4568:15: warning: ‘char* stbi_zlib_decode_noheader_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4568 | STBIDEF char *stbi_zlib_decode_noheader_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4557:13: warning: ‘int stbi_zlib_decode_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4557 | STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, char const *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4536:15: warning: ‘char* stbi_zlib_decode_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4536 | STBIDEF char *stbi_zlib_decode_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1582:16: warning: ‘void stbi_hdr_to_ldr_scale(float)’ defined but not used [-Wunused-function]
 1582 | STBIDEF void   stbi_hdr_to_ldr_scale(float scale) { stbi__h2l_scale_i = 1/scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1581:16: warning: ‘void stbi_hdr_to_ldr_gamma(float)’ defined but not used [-Wunused-function]
 1581 | STBIDEF void   stbi_hdr_to_ldr_gamma(float gamma) { stbi__h2l_gamma_i = 1/gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1576:16: warning: ‘void stbi_ldr_to_hdr_scale(float)’ defined but not used [-Wunused-function]
 1576 | STBIDEF void   stbi_ldr_to_hdr_scale(float scale) { stbi__l2h_scale = scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1575:16: warning: ‘void stbi_ldr_to_hdr_gamma(float)’ defined but not used [-Wunused-function]
 1575 | STBIDEF void   stbi_ldr_to_hdr_gamma(float gamma) { stbi__l2h_gamma = gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1559:18: warning: ‘int stbi_is_hdr_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 1559 | STBIDEF int      stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1531:18: warning: ‘int stbi_is_hdr(const char*)’ defined but not used [-Wunused-function]
 1531 | STBIDEF int      stbi_is_hdr          (char const *filename)
      |                  ^~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1517:13: warning: ‘int stbi_is_hdr_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 1517 | STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1493:16: warning: ‘float* stbi_loadf(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1493 | STBIDEF float *stbi_loadf(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1485:16: warning: ‘float* stbi_loadf_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1485 | STBIDEF float *stbi_loadf_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1478:16: warning: ‘float* stbi_loadf_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1478 | STBIDEF float *stbi_loadf_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1444:18: warning: ‘stbi_uc* stbi_load_gif_from_memory(const stbi_uc*, int, int**, int*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1444 | STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1436:18: warning: ‘stbi_uc* stbi_load_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1436 | STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1429:18: warning: ‘stbi_uc* stbi_load_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1429 | STBIDEF stbi_uc *stbi_load_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1422:18: warning: ‘stbi_us* stbi_load_16_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1422 | STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1415:18: warning: ‘stbi_us* stbi_load_16_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1415 | STBIDEF stbi_us *stbi_load_16_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1402:18: warning: ‘stbi_us* stbi_load_16(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1402 | STBIDEF stbi_us *stbi_load_16(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1126:14: warning: ‘void stbi_set_flip_vertically_on_load_thread(int)’ defined but not used [-Wunused-function]
 1126 | STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1116:14: warning: ‘void stbi_set_flip_vertically_on_load(int)’ defined but not used [-Wunused-function]
 1116 | STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
g++ -std=gnu++17 -I"/usr/include/R" -DNDEBUG  -I'/usr/local/lib/R/library/Rcpp/include' -I'/usr/local/lib/R/library/RcppArmadillo/include' -I'/usr/local/lib/R/library/RcppEnsmallen/include' -I/usr/local/include   -I. -I../inst/include -fopenmp -fpic  -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer    -c radical.cpp -o radical.o
In file included from ../inst/include/mlpack/core/stb/stb.hpp:80,
                 from ../inst/include/mlpack/core.hpp:38,
                 from ../inst/include/mlpack/methods/radical/radical_main.cpp:13,
                 from radical.cpp:9:
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1607:14: warning: ‘int stbi_write_jpg_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1607 | STBIWDEF int stbi_write_jpg_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int quality)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1231:14: warning: ‘int stbi_write_png_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1231 | STBIWDEF int stbi_write_png_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int stride_bytes)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:787:14: warning: ‘int stbi_write_hdr_to_func(void (*)(void*, void*, int), void*, int, int, int, const float*)’ defined but not used [-Wunused-function]
  787 | STBIWDEF int stbi_write_hdr_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const float *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:611:14: warning: ‘int stbi_write_tga_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  611 | STBIWDEF int stbi_write_tga_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:512:14: warning: ‘int stbi_write_bmp_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  512 | STBIWDEF int stbi_write_bmp_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:262:15: warning: ‘void stbi_flip_vertically_on_write(int)’ defined but not used [-Wunused-function]
  262 | STBIWDEF void stbi_flip_vertically_on_write(int flag)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ../inst/include/mlpack/core/stb/stb.hpp:79:
../inst/include/mlpack/core/stb/bundled/stb_image.h:7755:13: warning: ‘int stbi_is_16_bit_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 7755 | STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *c, void *user)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7748:13: warning: ‘int stbi_is_16_bit_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 7748 | STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7741:13: warning: ‘int stbi_info_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7741 | STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7734:13: warning: ‘int stbi_info_from_memory(const stbi_uc*, int, int*, int*, int*)’ defined but not used [-Wunused-function]
 7734 | STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7712:13: warning: ‘int stbi_is_16_bit(const char*)’ defined but not used [-Wunused-function]
 7712 | STBIDEF int stbi_is_16_bit(char const *filename)
      |             ^~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7691:13: warning: ‘int stbi_info(const char*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7691 | STBIDEF int stbi_info(char const *filename, int *x, int *y, int *comp)
      |             ^~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5019:14: warning: ‘void stbi_convert_iphone_png_to_rgb_thread(int)’ defined but not used [-Wunused-function]
 5019 | STBIDEF void stbi_convert_iphone_png_to_rgb_thread(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5013:14: warning: ‘void stbi_set_unpremultiply_on_load_thread(int)’ defined but not used [-Wunused-function]
 5013 | STBIDEF void stbi_set_unpremultiply_on_load_thread(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5001:14: warning: ‘void stbi_convert_iphone_png_to_rgb(int)’ defined but not used [-Wunused-function]
 5001 | STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4996:14: warning: ‘void stbi_set_unpremultiply_on_load(int)’ defined but not used [-Wunused-function]
 4996 | STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4584:13: warning: ‘int stbi_zlib_decode_noheader_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4584 | STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4568:15: warning: ‘char* stbi_zlib_decode_noheader_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4568 | STBIDEF char *stbi_zlib_decode_noheader_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4557:13: warning: ‘int stbi_zlib_decode_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4557 | STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, char const *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4536:15: warning: ‘char* stbi_zlib_decode_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4536 | STBIDEF char *stbi_zlib_decode_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1582:16: warning: ‘void stbi_hdr_to_ldr_scale(float)’ defined but not used [-Wunused-function]
 1582 | STBIDEF void   stbi_hdr_to_ldr_scale(float scale) { stbi__h2l_scale_i = 1/scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1581:16: warning: ‘void stbi_hdr_to_ldr_gamma(float)’ defined but not used [-Wunused-function]
 1581 | STBIDEF void   stbi_hdr_to_ldr_gamma(float gamma) { stbi__h2l_gamma_i = 1/gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1576:16: warning: ‘void stbi_ldr_to_hdr_scale(float)’ defined but not used [-Wunused-function]
 1576 | STBIDEF void   stbi_ldr_to_hdr_scale(float scale) { stbi__l2h_scale = scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1575:16: warning: ‘void stbi_ldr_to_hdr_gamma(float)’ defined but not used [-Wunused-function]
 1575 | STBIDEF void   stbi_ldr_to_hdr_gamma(float gamma) { stbi__l2h_gamma = gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1559:18: warning: ‘int stbi_is_hdr_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 1559 | STBIDEF int      stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1531:18: warning: ‘int stbi_is_hdr(const char*)’ defined but not used [-Wunused-function]
 1531 | STBIDEF int      stbi_is_hdr          (char const *filename)
      |                  ^~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1517:13: warning: ‘int stbi_is_hdr_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 1517 | STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1493:16: warning: ‘float* stbi_loadf(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1493 | STBIDEF float *stbi_loadf(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1485:16: warning: ‘float* stbi_loadf_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1485 | STBIDEF float *stbi_loadf_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1478:16: warning: ‘float* stbi_loadf_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1478 | STBIDEF float *stbi_loadf_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1444:18: warning: ‘stbi_uc* stbi_load_gif_from_memory(const stbi_uc*, int, int**, int*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1444 | STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1436:18: warning: ‘stbi_uc* stbi_load_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1436 | STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1429:18: warning: ‘stbi_uc* stbi_load_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1429 | STBIDEF stbi_uc *stbi_load_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1422:18: warning: ‘stbi_us* stbi_load_16_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1422 | STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1415:18: warning: ‘stbi_us* stbi_load_16_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1415 | STBIDEF stbi_us *stbi_load_16_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1402:18: warning: ‘stbi_us* stbi_load_16(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1402 | STBIDEF stbi_us *stbi_load_16(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1126:14: warning: ‘void stbi_set_flip_vertically_on_load_thread(int)’ defined but not used [-Wunused-function]
 1126 | STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1116:14: warning: ‘void stbi_set_flip_vertically_on_load(int)’ defined but not used [-Wunused-function]
 1116 | STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
g++ -std=gnu++17 -I"/usr/include/R" -DNDEBUG  -I'/usr/local/lib/R/library/Rcpp/include' -I'/usr/local/lib/R/library/RcppArmadillo/include' -I'/usr/local/lib/R/library/RcppEnsmallen/include' -I/usr/local/include   -I. -I../inst/include -fopenmp -fpic  -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer    -c random_forest.cpp -o random_forest.o
In file included from ../inst/include/mlpack/core/stb/stb.hpp:80,
                 from ../inst/include/mlpack/core.hpp:38,
                 from ../inst/include/mlpack/methods/random_forest/random_forest_main.cpp:12,
                 from random_forest.cpp:9:
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1607:14: warning: ‘int stbi_write_jpg_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1607 | STBIWDEF int stbi_write_jpg_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int quality)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1231:14: warning: ‘int stbi_write_png_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1231 | STBIWDEF int stbi_write_png_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int stride_bytes)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:787:14: warning: ‘int stbi_write_hdr_to_func(void (*)(void*, void*, int), void*, int, int, int, const float*)’ defined but not used [-Wunused-function]
  787 | STBIWDEF int stbi_write_hdr_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const float *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:611:14: warning: ‘int stbi_write_tga_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  611 | STBIWDEF int stbi_write_tga_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:512:14: warning: ‘int stbi_write_bmp_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  512 | STBIWDEF int stbi_write_bmp_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:262:15: warning: ‘void stbi_flip_vertically_on_write(int)’ defined but not used [-Wunused-function]
  262 | STBIWDEF void stbi_flip_vertically_on_write(int flag)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ../inst/include/mlpack/core/stb/stb.hpp:79:
../inst/include/mlpack/core/stb/bundled/stb_image.h:7755:13: warning: ‘int stbi_is_16_bit_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 7755 | STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *c, void *user)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7748:13: warning: ‘int stbi_is_16_bit_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 7748 | STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7741:13: warning: ‘int stbi_info_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7741 | STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7734:13: warning: ‘int stbi_info_from_memory(const stbi_uc*, int, int*, int*, int*)’ defined but not used [-Wunused-function]
 7734 | STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7712:13: warning: ‘int stbi_is_16_bit(const char*)’ defined but not used [-Wunused-function]
 7712 | STBIDEF int stbi_is_16_bit(char const *filename)
      |             ^~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7691:13: warning: ‘int stbi_info(const char*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7691 | STBIDEF int stbi_info(char const *filename, int *x, int *y, int *comp)
      |             ^~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5019:14: warning: ‘void stbi_convert_iphone_png_to_rgb_thread(int)’ defined but not used [-Wunused-function]
 5019 | STBIDEF void stbi_convert_iphone_png_to_rgb_thread(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5013:14: warning: ‘void stbi_set_unpremultiply_on_load_thread(int)’ defined but not used [-Wunused-function]
 5013 | STBIDEF void stbi_set_unpremultiply_on_load_thread(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5001:14: warning: ‘void stbi_convert_iphone_png_to_rgb(int)’ defined but not used [-Wunused-function]
 5001 | STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4996:14: warning: ‘void stbi_set_unpremultiply_on_load(int)’ defined but not used [-Wunused-function]
 4996 | STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4584:13: warning: ‘int stbi_zlib_decode_noheader_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4584 | STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4568:15: warning: ‘char* stbi_zlib_decode_noheader_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4568 | STBIDEF char *stbi_zlib_decode_noheader_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4557:13: warning: ‘int stbi_zlib_decode_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4557 | STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, char const *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4536:15: warning: ‘char* stbi_zlib_decode_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4536 | STBIDEF char *stbi_zlib_decode_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1582:16: warning: ‘void stbi_hdr_to_ldr_scale(float)’ defined but not used [-Wunused-function]
 1582 | STBIDEF void   stbi_hdr_to_ldr_scale(float scale) { stbi__h2l_scale_i = 1/scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1581:16: warning: ‘void stbi_hdr_to_ldr_gamma(float)’ defined but not used [-Wunused-function]
 1581 | STBIDEF void   stbi_hdr_to_ldr_gamma(float gamma) { stbi__h2l_gamma_i = 1/gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1576:16: warning: ‘void stbi_ldr_to_hdr_scale(float)’ defined but not used [-Wunused-function]
 1576 | STBIDEF void   stbi_ldr_to_hdr_scale(float scale) { stbi__l2h_scale = scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1575:16: warning: ‘void stbi_ldr_to_hdr_gamma(float)’ defined but not used [-Wunused-function]
 1575 | STBIDEF void   stbi_ldr_to_hdr_gamma(float gamma) { stbi__l2h_gamma = gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1559:18: warning: ‘int stbi_is_hdr_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 1559 | STBIDEF int      stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1531:18: warning: ‘int stbi_is_hdr(const char*)’ defined but not used [-Wunused-function]
 1531 | STBIDEF int      stbi_is_hdr          (char const *filename)
      |                  ^~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1517:13: warning: ‘int stbi_is_hdr_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 1517 | STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1493:16: warning: ‘float* stbi_loadf(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1493 | STBIDEF float *stbi_loadf(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1485:16: warning: ‘float* stbi_loadf_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1485 | STBIDEF float *stbi_loadf_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1478:16: warning: ‘float* stbi_loadf_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1478 | STBIDEF float *stbi_loadf_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1444:18: warning: ‘stbi_uc* stbi_load_gif_from_memory(const stbi_uc*, int, int**, int*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1444 | STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1436:18: warning: ‘stbi_uc* stbi_load_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1436 | STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1429:18: warning: ‘stbi_uc* stbi_load_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1429 | STBIDEF stbi_uc *stbi_load_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1422:18: warning: ‘stbi_us* stbi_load_16_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1422 | STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1415:18: warning: ‘stbi_us* stbi_load_16_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1415 | STBIDEF stbi_us *stbi_load_16_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1402:18: warning: ‘stbi_us* stbi_load_16(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1402 | STBIDEF stbi_us *stbi_load_16(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1126:14: warning: ‘void stbi_set_flip_vertically_on_load_thread(int)’ defined but not used [-Wunused-function]
 1126 | STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1116:14: warning: ‘void stbi_set_flip_vertically_on_load(int)’ defined but not used [-Wunused-function]
 1116 | STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
g++ -std=gnu++17 -I"/usr/include/R" -DNDEBUG  -I'/usr/local/lib/R/library/Rcpp/include' -I'/usr/local/lib/R/library/RcppArmadillo/include' -I'/usr/local/lib/R/library/RcppEnsmallen/include' -I/usr/local/include   -I. -I../inst/include -fopenmp -fpic  -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer    -c softmax_regression.cpp -o softmax_regression.o
In file included from ../inst/include/mlpack/core/stb/stb.hpp:80,
                 from ../inst/include/mlpack/core.hpp:38,
                 from ../inst/include/mlpack/methods/softmax_regression/softmax_regression_main.cpp:11,
                 from softmax_regression.cpp:9:
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1607:14: warning: ‘int stbi_write_jpg_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1607 | STBIWDEF int stbi_write_jpg_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int quality)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1231:14: warning: ‘int stbi_write_png_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1231 | STBIWDEF int stbi_write_png_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int stride_bytes)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:787:14: warning: ‘int stbi_write_hdr_to_func(void (*)(void*, void*, int), void*, int, int, int, const float*)’ defined but not used [-Wunused-function]
  787 | STBIWDEF int stbi_write_hdr_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const float *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:611:14: warning: ‘int stbi_write_tga_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  611 | STBIWDEF int stbi_write_tga_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:512:14: warning: ‘int stbi_write_bmp_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  512 | STBIWDEF int stbi_write_bmp_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:262:15: warning: ‘void stbi_flip_vertically_on_write(int)’ defined but not used [-Wunused-function]
  262 | STBIWDEF void stbi_flip_vertically_on_write(int flag)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ../inst/include/mlpack/core/stb/stb.hpp:79:
../inst/include/mlpack/core/stb/bundled/stb_image.h:7755:13: warning: ‘int stbi_is_16_bit_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 7755 | STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *c, void *user)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7748:13: warning: ‘int stbi_is_16_bit_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 7748 | STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7741:13: warning: ‘int stbi_info_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7741 | STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7734:13: warning: ‘int stbi_info_from_memory(const stbi_uc*, int, int*, int*, int*)’ defined but not used [-Wunused-function]
 7734 | STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7712:13: warning: ‘int stbi_is_16_bit(const char*)’ defined but not used [-Wunused-function]
 7712 | STBIDEF int stbi_is_16_bit(char const *filename)
      |             ^~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7691:13: warning: ‘int stbi_info(const char*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7691 | STBIDEF int stbi_info(char const *filename, int *x, int *y, int *comp)
      |             ^~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5019:14: warning: ‘void stbi_convert_iphone_png_to_rgb_thread(int)’ defined but not used [-Wunused-function]
 5019 | STBIDEF void stbi_convert_iphone_png_to_rgb_thread(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5013:14: warning: ‘void stbi_set_unpremultiply_on_load_thread(int)’ defined but not used [-Wunused-function]
 5013 | STBIDEF void stbi_set_unpremultiply_on_load_thread(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5001:14: warning: ‘void stbi_convert_iphone_png_to_rgb(int)’ defined but not used [-Wunused-function]
 5001 | STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4996:14: warning: ‘void stbi_set_unpremultiply_on_load(int)’ defined but not used [-Wunused-function]
 4996 | STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4584:13: warning: ‘int stbi_zlib_decode_noheader_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4584 | STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4568:15: warning: ‘char* stbi_zlib_decode_noheader_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4568 | STBIDEF char *stbi_zlib_decode_noheader_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4557:13: warning: ‘int stbi_zlib_decode_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4557 | STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, char const *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4536:15: warning: ‘char* stbi_zlib_decode_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4536 | STBIDEF char *stbi_zlib_decode_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1582:16: warning: ‘void stbi_hdr_to_ldr_scale(float)’ defined but not used [-Wunused-function]
 1582 | STBIDEF void   stbi_hdr_to_ldr_scale(float scale) { stbi__h2l_scale_i = 1/scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1581:16: warning: ‘void stbi_hdr_to_ldr_gamma(float)’ defined but not used [-Wunused-function]
 1581 | STBIDEF void   stbi_hdr_to_ldr_gamma(float gamma) { stbi__h2l_gamma_i = 1/gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1576:16: warning: ‘void stbi_ldr_to_hdr_scale(float)’ defined but not used [-Wunused-function]
 1576 | STBIDEF void   stbi_ldr_to_hdr_scale(float scale) { stbi__l2h_scale = scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1575:16: warning: ‘void stbi_ldr_to_hdr_gamma(float)’ defined but not used [-Wunused-function]
 1575 | STBIDEF void   stbi_ldr_to_hdr_gamma(float gamma) { stbi__l2h_gamma = gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1559:18: warning: ‘int stbi_is_hdr_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 1559 | STBIDEF int      stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1531:18: warning: ‘int stbi_is_hdr(const char*)’ defined but not used [-Wunused-function]
 1531 | STBIDEF int      stbi_is_hdr          (char const *filename)
      |                  ^~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1517:13: warning: ‘int stbi_is_hdr_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 1517 | STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1493:16: warning: ‘float* stbi_loadf(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1493 | STBIDEF float *stbi_loadf(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1485:16: warning: ‘float* stbi_loadf_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1485 | STBIDEF float *stbi_loadf_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1478:16: warning: ‘float* stbi_loadf_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1478 | STBIDEF float *stbi_loadf_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1444:18: warning: ‘stbi_uc* stbi_load_gif_from_memory(const stbi_uc*, int, int**, int*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1444 | STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1436:18: warning: ‘stbi_uc* stbi_load_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1436 | STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1429:18: warning: ‘stbi_uc* stbi_load_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1429 | STBIDEF stbi_uc *stbi_load_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1422:18: warning: ‘stbi_us* stbi_load_16_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1422 | STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1415:18: warning: ‘stbi_us* stbi_load_16_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1415 | STBIDEF stbi_us *stbi_load_16_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1402:18: warning: ‘stbi_us* stbi_load_16(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1402 | STBIDEF stbi_us *stbi_load_16(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1126:14: warning: ‘void stbi_set_flip_vertically_on_load_thread(int)’ defined but not used [-Wunused-function]
 1126 | STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1116:14: warning: ‘void stbi_set_flip_vertically_on_load(int)’ defined but not used [-Wunused-function]
 1116 | STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
g++ -std=gnu++17 -I"/usr/include/R" -DNDEBUG  -I'/usr/local/lib/R/library/Rcpp/include' -I'/usr/local/lib/R/library/RcppArmadillo/include' -I'/usr/local/lib/R/library/RcppEnsmallen/include' -I/usr/local/include   -I. -I../inst/include -fopenmp -fpic  -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer    -c sparse_coding.cpp -o sparse_coding.o
In file included from ../inst/include/mlpack/core/stb/stb.hpp:80,
                 from ../inst/include/mlpack/core.hpp:38,
                 from ../inst/include/mlpack/methods/sparse_coding/sparse_coding_main.cpp:12,
                 from sparse_coding.cpp:9:
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1607:14: warning: ‘int stbi_write_jpg_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1607 | STBIWDEF int stbi_write_jpg_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int quality)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1231:14: warning: ‘int stbi_write_png_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1231 | STBIWDEF int stbi_write_png_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int stride_bytes)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:787:14: warning: ‘int stbi_write_hdr_to_func(void (*)(void*, void*, int), void*, int, int, int, const float*)’ defined but not used [-Wunused-function]
  787 | STBIWDEF int stbi_write_hdr_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const float *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:611:14: warning: ‘int stbi_write_tga_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  611 | STBIWDEF int stbi_write_tga_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:512:14: warning: ‘int stbi_write_bmp_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  512 | STBIWDEF int stbi_write_bmp_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:262:15: warning: ‘void stbi_flip_vertically_on_write(int)’ defined but not used [-Wunused-function]
  262 | STBIWDEF void stbi_flip_vertically_on_write(int flag)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ../inst/include/mlpack/core/stb/stb.hpp:79:
../inst/include/mlpack/core/stb/bundled/stb_image.h:7755:13: warning: ‘int stbi_is_16_bit_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 7755 | STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *c, void *user)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7748:13: warning: ‘int stbi_is_16_bit_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 7748 | STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7741:13: warning: ‘int stbi_info_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7741 | STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7734:13: warning: ‘int stbi_info_from_memory(const stbi_uc*, int, int*, int*, int*)’ defined but not used [-Wunused-function]
 7734 | STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7712:13: warning: ‘int stbi_is_16_bit(const char*)’ defined but not used [-Wunused-function]
 7712 | STBIDEF int stbi_is_16_bit(char const *filename)
      |             ^~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7691:13: warning: ‘int stbi_info(const char*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7691 | STBIDEF int stbi_info(char const *filename, int *x, int *y, int *comp)
      |             ^~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5019:14: warning: ‘void stbi_convert_iphone_png_to_rgb_thread(int)’ defined but not used [-Wunused-function]
 5019 | STBIDEF void stbi_convert_iphone_png_to_rgb_thread(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5013:14: warning: ‘void stbi_set_unpremultiply_on_load_thread(int)’ defined but not used [-Wunused-function]
 5013 | STBIDEF void stbi_set_unpremultiply_on_load_thread(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5001:14: warning: ‘void stbi_convert_iphone_png_to_rgb(int)’ defined but not used [-Wunused-function]
 5001 | STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4996:14: warning: ‘void stbi_set_unpremultiply_on_load(int)’ defined but not used [-Wunused-function]
 4996 | STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4584:13: warning: ‘int stbi_zlib_decode_noheader_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4584 | STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4568:15: warning: ‘char* stbi_zlib_decode_noheader_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4568 | STBIDEF char *stbi_zlib_decode_noheader_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4557:13: warning: ‘int stbi_zlib_decode_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4557 | STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, char const *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4536:15: warning: ‘char* stbi_zlib_decode_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4536 | STBIDEF char *stbi_zlib_decode_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1582:16: warning: ‘void stbi_hdr_to_ldr_scale(float)’ defined but not used [-Wunused-function]
 1582 | STBIDEF void   stbi_hdr_to_ldr_scale(float scale) { stbi__h2l_scale_i = 1/scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1581:16: warning: ‘void stbi_hdr_to_ldr_gamma(float)’ defined but not used [-Wunused-function]
 1581 | STBIDEF void   stbi_hdr_to_ldr_gamma(float gamma) { stbi__h2l_gamma_i = 1/gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1576:16: warning: ‘void stbi_ldr_to_hdr_scale(float)’ defined but not used [-Wunused-function]
 1576 | STBIDEF void   stbi_ldr_to_hdr_scale(float scale) { stbi__l2h_scale = scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1575:16: warning: ‘void stbi_ldr_to_hdr_gamma(float)’ defined but not used [-Wunused-function]
 1575 | STBIDEF void   stbi_ldr_to_hdr_gamma(float gamma) { stbi__l2h_gamma = gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1559:18: warning: ‘int stbi_is_hdr_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 1559 | STBIDEF int      stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1531:18: warning: ‘int stbi_is_hdr(const char*)’ defined but not used [-Wunused-function]
 1531 | STBIDEF int      stbi_is_hdr          (char const *filename)
      |                  ^~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1517:13: warning: ‘int stbi_is_hdr_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 1517 | STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1493:16: warning: ‘float* stbi_loadf(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1493 | STBIDEF float *stbi_loadf(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1485:16: warning: ‘float* stbi_loadf_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1485 | STBIDEF float *stbi_loadf_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1478:16: warning: ‘float* stbi_loadf_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1478 | STBIDEF float *stbi_loadf_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1444:18: warning: ‘stbi_uc* stbi_load_gif_from_memory(const stbi_uc*, int, int**, int*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1444 | STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1436:18: warning: ‘stbi_uc* stbi_load_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1436 | STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1429:18: warning: ‘stbi_uc* stbi_load_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1429 | STBIDEF stbi_uc *stbi_load_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1422:18: warning: ‘stbi_us* stbi_load_16_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1422 | STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1415:18: warning: ‘stbi_us* stbi_load_16_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1415 | STBIDEF stbi_us *stbi_load_16_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1402:18: warning: ‘stbi_us* stbi_load_16(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1402 | STBIDEF stbi_us *stbi_load_16(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1126:14: warning: ‘void stbi_set_flip_vertically_on_load_thread(int)’ defined but not used [-Wunused-function]
 1126 | STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1116:14: warning: ‘void stbi_set_flip_vertically_on_load(int)’ defined but not used [-Wunused-function]
 1116 | STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
g++ -std=gnu++17 -I"/usr/include/R" -DNDEBUG  -I'/usr/local/lib/R/library/Rcpp/include' -I'/usr/local/lib/R/library/RcppArmadillo/include' -I'/usr/local/lib/R/library/RcppEnsmallen/include' -I/usr/local/include   -I. -I../inst/include -fopenmp -fpic  -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64 -march=x86-64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -mtls-dialect=gnu2 -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer    -c test_r_binding.cpp -o test_r_binding.o
In file included from ../inst/include/mlpack/core/stb/stb.hpp:80,
                 from ../inst/include/mlpack/core/data/load_image.hpp:16,
                 from ../inst/include/mlpack/core/data/load.hpp:28,
                 from ../inst/include/mlpack/core/util/io.hpp:31,
                 from ./mlpack/bindings/R/tests//test_r_binding_main.cpp:13,
                 from test_r_binding.cpp:9:
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1607:14: warning: ‘int stbi_write_jpg_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1607 | STBIWDEF int stbi_write_jpg_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int quality)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:1231:14: warning: ‘int stbi_write_png_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*, int)’ defined but not used [-Wunused-function]
 1231 | STBIWDEF int stbi_write_png_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data, int stride_bytes)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:787:14: warning: ‘int stbi_write_hdr_to_func(void (*)(void*, void*, int), void*, int, int, int, const float*)’ defined but not used [-Wunused-function]
  787 | STBIWDEF int stbi_write_hdr_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const float *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:611:14: warning: ‘int stbi_write_tga_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  611 | STBIWDEF int stbi_write_tga_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:512:14: warning: ‘int stbi_write_bmp_to_func(void (*)(void*, void*, int), void*, int, int, int, const void*)’ defined but not used [-Wunused-function]
  512 | STBIWDEF int stbi_write_bmp_to_func(stbi_write_func *func, void *context, int x, int y, int comp, const void *data)
      |              ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image_write.h:262:15: warning: ‘void stbi_flip_vertically_on_write(int)’ defined but not used [-Wunused-function]
  262 | STBIWDEF void stbi_flip_vertically_on_write(int flag)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ../inst/include/mlpack/core/stb/stb.hpp:79:
../inst/include/mlpack/core/stb/bundled/stb_image.h:7755:13: warning: ‘int stbi_is_16_bit_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 7755 | STBIDEF int stbi_is_16_bit_from_callbacks(stbi_io_callbacks const *c, void *user)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7748:13: warning: ‘int stbi_is_16_bit_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 7748 | STBIDEF int stbi_is_16_bit_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7741:13: warning: ‘int stbi_info_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7741 | STBIDEF int stbi_info_from_callbacks(stbi_io_callbacks const *c, void *user, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7734:13: warning: ‘int stbi_info_from_memory(const stbi_uc*, int, int*, int*, int*)’ defined but not used [-Wunused-function]
 7734 | STBIDEF int stbi_info_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp)
      |             ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7712:13: warning: ‘int stbi_is_16_bit(const char*)’ defined but not used [-Wunused-function]
 7712 | STBIDEF int stbi_is_16_bit(char const *filename)
      |             ^~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:7691:13: warning: ‘int stbi_info(const char*, int*, int*, int*)’ defined but not used [-Wunused-function]
 7691 | STBIDEF int stbi_info(char const *filename, int *x, int *y, int *comp)
      |             ^~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5019:14: warning: ‘void stbi_convert_iphone_png_to_rgb_thread(int)’ defined but not used [-Wunused-function]
 5019 | STBIDEF void stbi_convert_iphone_png_to_rgb_thread(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5013:14: warning: ‘void stbi_set_unpremultiply_on_load_thread(int)’ defined but not used [-Wunused-function]
 5013 | STBIDEF void stbi_set_unpremultiply_on_load_thread(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:5001:14: warning: ‘void stbi_convert_iphone_png_to_rgb(int)’ defined but not used [-Wunused-function]
 5001 | STBIDEF void stbi_convert_iphone_png_to_rgb(int flag_true_if_should_convert)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4996:14: warning: ‘void stbi_set_unpremultiply_on_load(int)’ defined but not used [-Wunused-function]
 4996 | STBIDEF void stbi_set_unpremultiply_on_load(int flag_true_if_should_unpremultiply)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4584:13: warning: ‘int stbi_zlib_decode_noheader_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4584 | STBIDEF int stbi_zlib_decode_noheader_buffer(char *obuffer, int olen, const char *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4568:15: warning: ‘char* stbi_zlib_decode_noheader_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4568 | STBIDEF char *stbi_zlib_decode_noheader_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4557:13: warning: ‘int stbi_zlib_decode_buffer(char*, int, const char*, int)’ defined but not used [-Wunused-function]
 4557 | STBIDEF int stbi_zlib_decode_buffer(char *obuffer, int olen, char const *ibuffer, int ilen)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:4536:15: warning: ‘char* stbi_zlib_decode_malloc(const char*, int, int*)’ defined but not used [-Wunused-function]
 4536 | STBIDEF char *stbi_zlib_decode_malloc(char const *buffer, int len, int *outlen)
      |               ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1582:16: warning: ‘void stbi_hdr_to_ldr_scale(float)’ defined but not used [-Wunused-function]
 1582 | STBIDEF void   stbi_hdr_to_ldr_scale(float scale) { stbi__h2l_scale_i = 1/scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1581:16: warning: ‘void stbi_hdr_to_ldr_gamma(float)’ defined but not used [-Wunused-function]
 1581 | STBIDEF void   stbi_hdr_to_ldr_gamma(float gamma) { stbi__h2l_gamma_i = 1/gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1576:16: warning: ‘void stbi_ldr_to_hdr_scale(float)’ defined but not used [-Wunused-function]
 1576 | STBIDEF void   stbi_ldr_to_hdr_scale(float scale) { stbi__l2h_scale = scale; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1575:16: warning: ‘void stbi_ldr_to_hdr_gamma(float)’ defined but not used [-Wunused-function]
 1575 | STBIDEF void   stbi_ldr_to_hdr_gamma(float gamma) { stbi__l2h_gamma = gamma; }
      |                ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1559:18: warning: ‘int stbi_is_hdr_from_callbacks(const stbi_io_callbacks*, void*)’ defined but not used [-Wunused-function]
 1559 | STBIDEF int      stbi_is_hdr_from_callbacks(stbi_io_callbacks const *clbk, void *user)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1531:18: warning: ‘int stbi_is_hdr(const char*)’ defined but not used [-Wunused-function]
 1531 | STBIDEF int      stbi_is_hdr          (char const *filename)
      |                  ^~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1517:13: warning: ‘int stbi_is_hdr_from_memory(const stbi_uc*, int)’ defined but not used [-Wunused-function]
 1517 | STBIDEF int stbi_is_hdr_from_memory(stbi_uc const *buffer, int len)
      |             ^~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1493:16: warning: ‘float* stbi_loadf(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1493 | STBIDEF float *stbi_loadf(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1485:16: warning: ‘float* stbi_loadf_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1485 | STBIDEF float *stbi_loadf_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1478:16: warning: ‘float* stbi_loadf_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1478 | STBIDEF float *stbi_loadf_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                ^~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1444:18: warning: ‘stbi_uc* stbi_load_gif_from_memory(const stbi_uc*, int, int**, int*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1444 | STBIDEF stbi_uc *stbi_load_gif_from_memory(stbi_uc const *buffer, int len, int **delays, int *x, int *y, int *z, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1436:18: warning: ‘stbi_uc* stbi_load_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1436 | STBIDEF stbi_uc *stbi_load_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1429:18: warning: ‘stbi_uc* stbi_load_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1429 | STBIDEF stbi_uc *stbi_load_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1422:18: warning: ‘stbi_us* stbi_load_16_from_callbacks(const stbi_io_callbacks*, void*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1422 | STBIDEF stbi_us *stbi_load_16_from_callbacks(stbi_io_callbacks const *clbk, void *user, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1415:18: warning: ‘stbi_us* stbi_load_16_from_memory(const stbi_uc*, int, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1415 | STBIDEF stbi_us *stbi_load_16_from_memory(stbi_uc const *buffer, int len, int *x, int *y, int *channels_in_file, int desired_channels)
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1402:18: warning: ‘stbi_us* stbi_load_16(const char*, int*, int*, int*, int)’ defined but not used [-Wunused-function]
 1402 | STBIDEF stbi_us *stbi_load_16(char const *filename, int *x, int *y, int *comp, int req_comp)
      |                  ^~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1126:14: warning: ‘void stbi_set_flip_vertically_on_load_thread(int)’ defined but not used [-Wunused-function]
 1126 | STBIDEF void stbi_set_flip_vertically_on_load_thread(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../inst/include/mlpack/core/stb/bundled/stb_image.h:1116:14: warning: ‘void stbi_set_flip_vertically_on_load(int)’ defined but not used [-Wunused-function]
 1116 | STBIDEF void stbi_set_flip_vertically_on_load(int flag_true_if_should_flip)
      |              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
g++ -std=gnu++17 -shared -L/usr/lib64/R/lib -Wl,-z,relro -Wl,--as-needed -Wl,-z,pack-relative-relocs -Wl,-z,now -specs=/usr/lib/rpm/redhat/redhat-hardened-ld -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -Wl,--build-id=sha1 -o mlpack.so RcppExports.o adaboost.o approx_kfn.o bayesian_linear_regression.o cf.o dbscan.o decision_tree.o det.o emst.o fastmks.o gmm_generate.o gmm_probability.o gmm_train.o hmm_generate.o hmm_loglik.o hmm_train.o hmm_viterbi.o hoeffding_tree.o image_converter.o kde.o kernel_pca.o kfn.o kmeans.o knn.o krann.o lars.o linear_regression.o linear_svm.o lmnn.o local_coordinate_coding.o logistic_regression.o lsh.o mean_shift.o nbc.o nca.o nmf.o pca.o perceptron.o preprocess_binarize.o preprocess_describe.o preprocess_one_hot_encoding.o preprocess_scale.o preprocess_split.o r_util.o radical.o random_forest.o softmax_regression.o sparse_coding.o test_r_binding.o -fopenmp -lflexiblas -lgfortran -lm -lquadmath -L/usr/lib64/R/lib -lR
installing to /builddir/build/BUILD/R-CRAN-mlpack-4.6.2-build/BUILDROOT/usr/local/lib/R/library/00LOCK-mlpack/00new/mlpack/libs
** R
** inst
** byte-compile and prepare package for lazy loading
** help
*** installing help indices
  converting help for package ‘mlpack’
    finding HTML links ... done
    adaboost                                html  
    approx_kfn                              html  
    bayesian_linear_regression              html  
    cf                                      html  
    dbscan                                  html  
    decision_tree                           html  
    det                                     html  
    emst                                    html  
    fastmks                                 html  
    gmm_generate                            html  
    gmm_probability                         html  
    gmm_train                               html  
    hmm_generate                            html  
    hmm_loglik                              html  
    hmm_train                               html  
    hmm_viterbi                             html  
    hoeffding_tree                          html  
    image_converter                         html  
    kde                                     html  
    kernel_pca                              html  
    kfn                                     html  
    kmeans                                  html  
    knn                                     html  
    krann                                   html  
    lars                                    html  
    linear_regression                       html  
    linear_svm                              html  
    lmnn                                    html  
    local_coordinate_coding                 html  
    logistic_regression                     html  
    lsh                                     html  
    mean_shift                              html  
    mlpack-serialization                    html  
    mlpack                                  html  
    nbc                                     html  
    nca                                     html  
    nmf                                     html  
    pca                                     html  
    perceptron                              html  
    preprocess_binarize                     html  
    preprocess_describe                     html  
    preprocess_one_hot_encoding             html  
    preprocess_scale                        html  
    preprocess_split                        html  
    radical                                 html  
    random_forest                           html  
    softmax_regression                      html  
    sparse_coding                           html  
    test_r_binding                          html  
** building package indices
** testing if installed package can be loaded from temporary location
** checking absolute paths in shared objects and dynamic libraries
** testing if installed package can be loaded from final location
** testing if installed package keeps a record of temporary installation path
* DONE (mlpack)
+ test -d mlpack/src
+ cd mlpack/src
+ rm -f RcppExports.o adaboost.o approx_kfn.o bayesian_linear_regression.o cf.o dbscan.o decision_tree.o det.o emst.o fastmks.o gmm_generate.o gmm_probability.o gmm_train.o hmm_generate.o hmm_loglik.o hmm_train.o hmm_viterbi.o hoeffding_tree.o image_converter.o kde.o kernel_pca.o kfn.o kmeans.o knn.o krann.o lars.o linear_regression.o linear_svm.o lmnn.o local_coordinate_coding.o logistic_regression.o lsh.o mean_shift.o nbc.o nca.o nmf.o pca.o perceptron.o preprocess_binarize.o preprocess_describe.o preprocess_one_hot_encoding.o preprocess_scale.o preprocess_split.o r_util.o radical.o random_forest.o softmax_regression.o sparse_coding.o test_r_binding.o mlpack.so
+ rm -f /builddir/build/BUILD/R-CRAN-mlpack-4.6.2-build/BUILDROOT/usr/local/lib/R/library/R.css
+ find /builddir/build/BUILD/R-CRAN-mlpack-4.6.2-build/BUILDROOT/usr/local/lib/R/library -type f -exec sed -i s@/builddir/build/BUILD/R-CRAN-mlpack-4.6.2-build/BUILDROOT@@g '{}' ';'
+ /usr/bin/find-debuginfo -j2 --strict-build-id -m -i --build-id-seed 4.6.2-1.fc41.copr9074818 --unique-debug-suffix -4.6.2-1.fc41.copr9074818.x86_64 --unique-debug-src-base R-CRAN-mlpack-4.6.2-1.fc41.copr9074818.x86_64 --run-dwz --dwz-low-mem-die-limit 10000000 --dwz-max-die-limit 110000000 -S debugsourcefiles.list /builddir/build/BUILD/R-CRAN-mlpack-4.6.2-build/mlpack
find-debuginfo: starting
Extracting debug info from 1 files
DWARF-compressing 1 files
sepdebugcrcfix: Updated 1 CRC32s, 0 CRC32s did match.
Creating .debug symlinks for symlinks to ELF files
Copying sources found by 'debugedit -l' to /usr/src/debug/R-CRAN-mlpack-4.6.2-1.fc41.copr9074818.x86_64
find-debuginfo: done
+ /usr/lib/rpm/check-buildroot
+ /usr/lib/rpm/redhat/brp-ldconfig
+ /usr/lib/rpm/brp-compress
+ /usr/lib/rpm/redhat/brp-strip-lto /usr/bin/strip
+ /usr/lib/rpm/brp-strip-static-archive /usr/bin/strip
+ /usr/lib/rpm/redhat/brp-mangle-shebangs
+ /usr/lib/rpm/brp-remove-la-files
+ env /usr/lib/rpm/redhat/brp-python-bytecompile '' 1 0 -j2
+ /usr/lib/rpm/redhat/brp-python-hardlink
+ /usr/bin/add-determinism --brp -j2 /builddir/build/BUILD/R-CRAN-mlpack-4.6.2-build/BUILDROOT
Scanned 253 directories and 1891 files,
               processed 102 inodes,
               0 modified (0 replaced + 0 rewritten),
               0 unsupported format, 0 errors
Reading /builddir/build/BUILD/R-CRAN-mlpack-4.6.2-build/SPECPARTS/rpm-debuginfo.specpart
Processing files: R-CRAN-mlpack-4.6.2-1.fc41.copr9074818.x86_64
Provides: R-CRAN-mlpack = 4.6.2-1.fc41.copr9074818 R-CRAN-mlpack(x86-64) = 4.6.2-1.fc41.copr9074818
Requires(rpmlib): rpmlib(CompressedFileNames) <= 3.0.4-1 rpmlib(FileDigests) <= 4.6.0-1 rpmlib(PayloadFilesHavePrefix) <= 4.0-1
Requires: libR.so()(64bit) libc.so.6()(64bit) libc.so.6(GLIBC_2.11)(64bit) libc.so.6(GLIBC_2.14)(64bit) libc.so.6(GLIBC_2.2.5)(64bit) libc.so.6(GLIBC_2.3.4)(64bit) libc.so.6(GLIBC_2.32)(64bit) libc.so.6(GLIBC_2.38)(64bit) libc.so.6(GLIBC_2.4)(64bit) libc.so.6(GLIBC_ABI_DT_RELR)(64bit) libflexiblas.so.3()(64bit) libgcc_s.so.1()(64bit) libgcc_s.so.1(GCC_3.0)(64bit) libgcc_s.so.1(GCC_3.3.1)(64bit) libgomp.so.1()(64bit) libgomp.so.1(GOMP_1.0)(64bit) libgomp.so.1(GOMP_4.0)(64bit) libgomp.so.1(GOMP_4.5)(64bit) libgomp.so.1(OMP_1.0)(64bit) libm.so.6()(64bit) libm.so.6(GLIBC_2.2.5)(64bit) libm.so.6(GLIBC_2.27)(64bit) libm.so.6(GLIBC_2.29)(64bit) libm.so.6(GLIBC_2.38)(64bit) libstdc++.so.6()(64bit) libstdc++.so.6(CXXABI_1.3)(64bit) libstdc++.so.6(CXXABI_1.3.15)(64bit) libstdc++.so.6(CXXABI_1.3.5)(64bit) libstdc++.so.6(CXXABI_1.3.8)(64bit) libstdc++.so.6(CXXABI_1.3.9)(64bit) libstdc++.so.6(GLIBCXX_3.4)(64bit) libstdc++.so.6(GLIBCXX_3.4.11)(64bit) libstdc++.so.6(GLIBCXX_3.4.14)(64bit) libstdc++.so.6(GLIBCXX_3.4.15)(64bit) libstdc++.so.6(GLIBCXX_3.4.18)(64bit) libstdc++.so.6(GLIBCXX_3.4.19)(64bit) libstdc++.so.6(GLIBCXX_3.4.20)(64bit) libstdc++.so.6(GLIBCXX_3.4.21)(64bit) libstdc++.so.6(GLIBCXX_3.4.26)(64bit) libstdc++.so.6(GLIBCXX_3.4.29)(64bit) libstdc++.so.6(GLIBCXX_3.4.30)(64bit) libstdc++.so.6(GLIBCXX_3.4.32)(64bit) libstdc++.so.6(GLIBCXX_3.4.9)(64bit) rtld(GNU_HASH)
Processing files: R-CRAN-mlpack-debugsource-4.6.2-1.fc41.copr9074818.x86_64
Provides: R-CRAN-mlpack-debugsource = 4.6.2-1.fc41.copr9074818 R-CRAN-mlpack-debugsource(x86-64) = 4.6.2-1.fc41.copr9074818
Requires(rpmlib): rpmlib(CompressedFileNames) <= 3.0.4-1 rpmlib(FileDigests) <= 4.6.0-1 rpmlib(PayloadFilesHavePrefix) <= 4.0-1
Processing files: R-CRAN-mlpack-debuginfo-4.6.2-1.fc41.copr9074818.x86_64
Provides: R-CRAN-mlpack-debuginfo = 4.6.2-1.fc41.copr9074818 R-CRAN-mlpack-debuginfo(x86-64) = 4.6.2-1.fc41.copr9074818 debuginfo(build-id) = 527e3c69652a416fbbf58f170df401cc7958c3f6
Requires(rpmlib): rpmlib(CompressedFileNames) <= 3.0.4-1 rpmlib(FileDigests) <= 4.6.0-1 rpmlib(PayloadFilesHavePrefix) <= 4.0-1
Recommends: R-CRAN-mlpack-debugsource(x86-64) = 4.6.2-1.fc41.copr9074818
Checking for unpackaged file(s): /usr/lib/rpm/check-files /builddir/build/BUILD/R-CRAN-mlpack-4.6.2-build/BUILDROOT
Wrote: /builddir/build/RPMS/R-CRAN-mlpack-4.6.2-1.fc41.copr9074818.x86_64.rpm
Wrote: /builddir/build/RPMS/R-CRAN-mlpack-debugsource-4.6.2-1.fc41.copr9074818.x86_64.rpm
Wrote: /builddir/build/RPMS/R-CRAN-mlpack-debuginfo-4.6.2-1.fc41.copr9074818.x86_64.rpm
Executing(rmbuild): /bin/sh -e /var/tmp/rpm-tmp.5LSgmN
+ umask 022
+ cd /builddir/build/BUILD/R-CRAN-mlpack-4.6.2-build
+ test -d /builddir/build/BUILD/R-CRAN-mlpack-4.6.2-build
+ /usr/bin/chmod -Rf a+rX,u+w,g-w,o-w /builddir/build/BUILD/R-CRAN-mlpack-4.6.2-build
+ rm -rf /builddir/build/BUILD/R-CRAN-mlpack-4.6.2-build
+ RPM_EC=0
++ jobs -p
+ exit 0

RPM build warnings:
    %source_date_epoch_from_changelog is set, but %changelog has no entries to take a date from
Finish: rpmbuild R-CRAN-mlpack-4.6.2-1.fc41.copr9074818.src.rpm
Finish: build phase for R-CRAN-mlpack-4.6.2-1.fc41.copr9074818.src.rpm
INFO: chroot_scan: 1 files copied to /var/lib/copr-rpmbuild/results/chroot_scan
INFO: /var/lib/mock/fedora-41-x86_64-1747965636.766226/root/var/log/dnf5.log
INFO: chroot_scan: creating tarball /var/lib/copr-rpmbuild/results/chroot_scan.tar.gz
/bin/tar: Removing leading `/' from member names
INFO: Done(/var/lib/copr-rpmbuild/results/R-CRAN-mlpack-4.6.2-1.fc41.copr9074818.src.rpm) Config(child) 27 minutes 19 seconds
INFO: Results and/or logs in: /var/lib/copr-rpmbuild/results
INFO: Cleaning up build root ('cleanup_on_success=True')
Start: clean chroot
INFO: unmounting tmpfs.
Finish: clean chroot
Finish: run
Running RPMResults tool
Package info:
{
    "packages": [
        {
            "name": "R-CRAN-mlpack-debugsource",
            "epoch": null,
            "version": "4.6.2",
            "release": "1.fc41.copr9074818",
            "arch": "x86_64"
        },
        {
            "name": "R-CRAN-mlpack",
            "epoch": null,
            "version": "4.6.2",
            "release": "1.fc41.copr9074818",
            "arch": "src"
        },
        {
            "name": "R-CRAN-mlpack-debuginfo",
            "epoch": null,
            "version": "4.6.2",
            "release": "1.fc41.copr9074818",
            "arch": "x86_64"
        },
        {
            "name": "R-CRAN-mlpack",
            "epoch": null,
            "version": "4.6.2",
            "release": "1.fc41.copr9074818",
            "arch": "x86_64"
        }
    ]
}
RPMResults finished