Name:           librandombytes
Version:        20240318
Release:        1%{?dist}
Summary:        Library for generating random bytes from the operating system
License:        LicenseRef-Fedora-Public-Domain OR 0BSD OR MIT-0 OR MIT
URL:            https://randombytes.cr.yp.to/
Source:         https://randombytes.cr.yp.to/librandombytes-%{version}.tar.gz

BuildRequires:  gcc
BuildRequires:  make
BuildRequires:  python3
# The OpenSSL variant is built too, but not packaged (as in Debian), so the library does not
# depend on OpenSSL.
BuildRequires:  openssl-devel

%description
librandombytes provides the randombytes() function, which fills a buffer with random bytes from
the operating system's random number generator. lib25519, libmceliece and libntruprime use it.

%package devel
Summary:        Development files for librandombytes
Requires:       %{name}%{?_isa} = %{version}-%{release}

%description devel
librandombytes headers and other development files.

%package static
Summary:        Static version of the librandombytes library
Requires:       %{name}-devel%{?_isa} = %{version}-%{release}

%description static
Statically linkable version of the librandombytes library.

%prep
%autosetup

%build
# The build tries every compiler in compilers/; pass Fedora's flags to all of them through a gcc
# wrapper, and disable clang, as the Debian packaging does.
mkdir -p .rpm-cc
printf '#!/bin/sh\nexec /usr/bin/gcc %s "$@"\n' '%{build_cflags} %{build_ldflags}' > .rpm-cc/gcc
printf '#!/bin/sh\nexit 1\n' > .rpm-cc/clang
chmod +x .rpm-cc/*
export PATH=$PWD/.rpm-cc:$PATH
./configure --prefix=%{_prefix}
%make_build

%install
cd build/0/package
install -d %{buildroot}{%{_libdir},%{_includedir},%{_bindir},%{_mandir}/man1,%{_mandir}/man3}
cp -P lib/librandombytes-kernel.so.1 lib/librandombytes.so.1 \
      lib/librandombytes-kernel.so lib/librandombytes.so \
      lib/librandombytes-kernel.a lib/librandombytes.a %{buildroot}%{_libdir}/
chmod 755 %{buildroot}%{_libdir}/librandombytes-kernel.so.1
install -m 644 include/randombytes.h %{buildroot}%{_includedir}/
install -m 755 bin/randombytes-info %{buildroot}%{_bindir}/
install -m 644 man/man1/*.1 %{buildroot}%{_mandir}/man1/
install -m 644 man/man3/*.3 %{buildroot}%{_mandir}/man3/

%check
LD_LIBRARY_PATH=$PWD/build/0/package/lib ./build/0/package/bin/randombytes-info

%files
%license doc/license.md
%doc doc/readme.md
%{_libdir}/librandombytes-kernel.so.1
%{_libdir}/librandombytes.so.1
%{_bindir}/randombytes-info
%{_mandir}/man1/randombytes-info.1*

%files devel
%{_includedir}/randombytes.h
%{_libdir}/librandombytes-kernel.so
%{_libdir}/librandombytes.so
%{_mandir}/man3/randombytes.3*

%files static
%{_libdir}/librandombytes-kernel.a
%{_libdir}/librandombytes.a

%changelog
* Sat Oct 03 2026 Sheldon Knuth <sheldon@citi.sinica.edu.tw> - 20240318-1
- Package librandombytes for the PQConnect COPR, following Fedora's libcpucycles