# Description: clang compiler
# URL: https://clang.llvm.org/
# Maintainer: CRUX System Team, core-ports at crux dot nu
# Depends on: compiler-rt llvm

name=clang
version=12.0.1
release=1
source=(https://github.com/llvm/llvm-project/releases/download/llvmorg-$version/$name-$version.src.tar.xz
	https://github.com/llvm/llvm-project/releases/download/llvmorg-$version/$name-tools-extra-$version.src.tar.xz)

build() {
	cmake -S $name-$version.src -B build -G Ninja \
		-D CMAKE_INSTALL_PREFIX=/usr \
		-D CMAKE_INSTALL_LIBEXECDIR=lib/clang \
		-D CMAKE_BUILD_TYPE=Release \
		-D CMAKE_C_FLAGS_RELEASE="$CFLAGS" \
		-D CMAKE_CXX_FLAGS_RELEASE="$CXXFLAGS" \
		-D LLVM_EXTERNAL_CLANG_TOOLS_EXTRA_SOURCE_DIR="$name-tools-extra-$version.src" \
		-D LLVM_TARGETS_TO_BUILD='X86;AMDGPU;BPF;NVPTX' \
		-D LLVM_PARALLEL_COMPILE_JOBS="${JOBS:-1}" \
		-Wno-dev
	cmake --build build
	DESTDIR=$PKG cmake --install build

	# -DCMAKE_INSTALL_LIBEXECDIR is still hardcoded..
	mv $PKG/usr/libexec/{c++-analyzer,ccc-analyzer} $PKG/usr/lib/clang
	rmdir $PKG/usr/libexec
	sed -i 's|libexec|lib/clang|' $PKG/usr/bin/scan-build
}