# Description: LLVM compiler backend
# URL: https://llvm.org
# Maintainer: CRUX compat-32 Team, compat-32-ports at crux dot nu
# Depends on: libffi-32 libxml2-32 llvm ncurses-32

name=llvm-32
version=15.0.1
release=1
source=(https://github.com/llvm/llvm-project/releases/download/llvmorg-$version/llvm-$version.src.tar.xz
	https://github.com/llvm/llvm-project/releases/download/llvmorg-$version/cmake-$version.src.tar.xz)

build() {
	mkdir -p $SRC/keep

	#prt-get isinst ccache && PKGMK_LLVM+=' -D LLVM_CCACHE_BUILD=ON'

	cp -r $SRC/cmake-$version.src/Modules/* llvm-$version.src/cmake/modules/.

	cmake -S llvm-$version.src -B build -G Ninja $PKGMK_LLVM \
		-D CMAKE_INSTALL_PREFIX=/usr \
		-D LLVM_LIBDIR_SUFFIX=32 \
		-D CMAKE_BUILD_TYPE=Release \
		-D CMAKE_C_FLAGS_RELEASE="-O2 -march=x86-64 -pipe -m32" \
		-D CMAKE_CXX_FLAGS_RELEASE="-O2 -march=x86-64 -pipe -m32" \
		-D LLVM_TARGET_ARCH=i686 \
		-D LLVM_BINUTILS_INCDIR=/usr/include \
		-D LLVM_BUILD_LLVM_DYLIB=ON \
		-D LLVM_LINK_LLVM_DYLIB=ON \
		-D LLVM_PARALLEL_COMPILE_JOBS="${JOBS:-1}" \
		-D LLVM_INCLUDE_EXAMPLES=OFF \
		-D LLVM_ENABLE_OCAMLDOC=OFF \
		-D LLVM_INCLUDE_TESTS=OFF \
		-D LLVM_ENABLE_FFI=ON \
		-D LLVM_ENABLE_RTTI=ON \
		-D LLVM_ENABLE_OCAMLDOC=OFF \
		-D LLVM_INSTALL_UTILS=ON \
		-D LLVM_ENABLE_LIBCXX=OFF \
		-D LLVM_ENABLE_LLD="$(prt-get isinst lld >/dev/null && echo ON || echo OFF)" \
		-D LLVM_DEFAULT_TARGET_TRIPLE="i686-pc-linux-gnu" \
		-D LLVM_OPTIMIZED_TABLEGEN=ON \
		-D LLVM_INCLUDE_BENCHMARKS=OFF \
		-Wno-dev

	cmake --build build
	DESTDIR=$PKG cmake --install build

	# keep 32bit header and config
	install -t $SRC/keep $PKG/usr/bin/llvm-config $PKG/usr/include/llvm/Config/llvm-config.h

	# remove unneeded files
	rm -r $PKG/usr/{bin,include,share/opt-viewer}

	# install 32bit header and config
	install -m 0755 -D $SRC/keep/llvm-config $PKG/usr/bin/llvm-config-32
	install -m 0644 -D $SRC/keep/llvm-config.h $PKG/usr/include/llvm/Config/llvm-config-32.h
}