# spec file for llvm19-bootstrap
#
# This spec file is for building a minimal, bootstrapped version of LLVM 19.
# It includes only clang and lld, as a prerequisite for building the full
# LLVM package using the Fedora upstream spec.

Name:       llvm19-bootstrap
Version:    19.1.7
Release:    1%{?dist}
Summary:    The LLVM Compiler Infrastructure, minimal namespaced bootstrap version
License:    Apache-2.0 AND NCSA
URL:        https://llvm.org/
Source0:    https://github.com/llvm/llvm-project/releases/download/llvmorg-19.1.7/llvm-project-19.1.7.src.tar.xz
Source1:    https://github.com/llvm/llvm-project/releases/download/llvmorg-19.1.7/llvm-project-19.1.7.src.tar.xz.sig

BuildRequires:  cmake
BuildRequires:  ninja-build
BuildRequires:  zlib-devel
BuildRequires:  libxml2-devel
BuildRequires:  python3-devel
BuildRequires:  openssl-devel
BuildRequires:  gmp-devel
BuildRequires:  libtool
BuildRequires:  binutils-devel
# We explicitly list the llvm18 packages as a build dependency.
BuildRequires:  clang18
BuildRequires:  lld18
BuildRequires:  llvm18
BuildRequires:  compiler-rt18

Requires:       zlib
Requires:       libxml2

%description
This package contains a minimal, bootstrapped build of the LLVM 19 compiler
infrastructure, including the namespaced clang C/C++ compiler and the lld linker.
It is intended to be used as a build dependency for a full-featured LLVM 19 package.

%prep
%autosetup -n llvm-project-19.1.7.src

# Verify the integrity of the source tarball using the provided SHA512 hash
echo "c7d63286d662707a9cd54758c9e3aaf52794a91900c484c4a6efa62d90bc719d5e7a345e4192feeb0c9fd11c82570d64677c781e5be1d645556b6aa018e47ec8  %{_sourcedir}/llvm-project-19.1.7.src.tar.xz" | sha512sum -c -

%build
# We're building with a namespaced install prefix to avoid conflicts.
# The binaries will be installed to /usr/bin with a version suffix.
# Corrected the source directory for CMake to 'llvm'.
%cmake -S llvm -G Ninja \
  -DCMAKE_BUILD_TYPE=Release \
  -DCMAKE_INSTALL_PREFIX=%{_prefix} \
  -DLLVM_ENABLE_PROJECTS="clang;lld" \
  -DLLVM_BUILD_TESTS=OFF \
  -DLLVM_BUILD_DOCS=OFF \
  -DLLVM_TOOL_LLD_BUILD=ON \
  -DLLVM_TOOL_CLANG_BUILD=ON \
  -DLLVM_INSTALL_BINDIR=%{_bindir} \
  -DCMAKE_C_COMPILER=clang-18 \
  -DCMAKE_CXX_COMPILER=clang++-18

%cmake_build

%install
%cmake_install

# Now we rename the binaries to include the version suffix, matching the user's setup.
mv %{buildroot}%{_bindir}/clang %{buildroot}%{_bindir}/clang-19
ln -sf clang-19 %{buildroot}%{_bindir}/clang++-19
mv %{buildroot}%{_bindir}/lld %{buildroot}%{_bindir}/lld-19
ln -sf lld-19 %{buildroot}%{_bindir}/ld.lld-19

%files
%license llvm-project-19.1.7.src/LICENSE.TXT
%{_bindir}/clang-19
%{_bindir}/clang++-19
%{_bindir}/lld-19
%{_bindir}/ld.lld-19
%{_libdir}/libLLVM*.so
%{_libdir}/cmake/llvm
%{_includedir}/clang

%changelog
* Thu Aug 07 2025 Yonghang Wang <wyhang@gmail.com> - 19.1.7-1
- Initial bootstrap package for LLVM 19, namespaced.