# Template file for 'llvm3.9'
# Only a transitional package until Rust works with LLVM 4.0.
pkgname=llvm3.9
version=3.9.1
revision=2
wrksrc="llvm-${version}.src"
lib32disabled=yes
build_style=cmake
configure_args="
 -Wno-dev
 -DCMAKE_BUILD_TYPE=Release
 -DLLVM_BUILD_LLVM_DYLIB=ON
 -DLLVM_LINK_LLVM_DYLIB=OFF
 -DLLVM_DYLIB_EXPORT_ALL=ON
 -DLLVM_ENABLE_RTTI=ON
 -DLLVM_ENABLE_FFI=ON
 -DLLVM_BUILD_TESTS=OFF
 -DLLVM_BINUTILS_INCDIR=/usr/include
 -DCMAKE_INSTALL_DO_STRIP=0"
nodebug=yes  # while -DLLVM_LINK_LLVM_DYLIB=OFF
short_desc="Low Level Virtual Machine (3.9.x series)"
maintainer="Leah Neukirchen <leah@vuxu.org>"
homepage="http://www.llvm.org"
license="BSD"
distfiles="http://www.llvm.org/releases/${version}/llvm-${version}.src.tar.xz"
checksum=1fd90354b9cf19232e8f168faf2220e79be555df3aa743242700879e8fd329ee

# XXX Investigate ocaml bindings.
hostmakedepends="groff perl python zlib-devel libffi-devel swig"
makedepends="python-devel zlib-devel libffi-devel libedit-devel libxml2-devel binutils-devel"
depends="libllvm3.9"
conflicts="llvm>=0"
nocross=yes

subpackages="libllvm3.9"

post_extract() {
	# patches
	cd ${XBPS_BUILDDIR}/llvm-${version}.src
	for i in ${FILESDIR}/patches/llvm/llvm-*.patch; do
		msg_normal "Applying $i to llvm\n"
		patch -sNp1 -i ${i}
	done

	# https://bugs.freedesktop.org/show_bug.cgi?id=99078
	patch -RsNp1 -i ${FILESDIR}/patches/llvm/reverse-llvm-AMDGPU-Fix-an-interaction-between-WQM-and-polygon-stippling.patch

	# Move compiler-rt files into the llvm source.
	if [ -d ${XBPS_BUILDDIR}/compiler-rt-${version}.src ]; then
		mv ${XBPS_BUILDDIR}/compiler-rt-${version}.src ${wrksrc}/projects/compiler-rt
	fi
}

pre_configure() {
	if [ "$CROSS_BUILD" ]; then
		msg_normal "Building host tblgen\n"
		mkdir -p build/HOST
		cd build/HOST
		CC="$BUILD_CC" CXX="$BUILD_CXX" CFLAGS="$BUILD_CFLAGS" \
			CXXFLAGS="$BUILD_CXXFLAGS" LDFLAGS="$BUILD_LDFLAGS" \
			cmake ../.. -DCMAKE_BUILD_TYPE=Release
		make ${makejobs} -C utils/TableGen
		make ${makejobs} -C tools/clang/utils/TableGen
		configure_args+=" -DLLVM_TABLEGEN=${wrksrc}/build/HOST/bin/llvm-tblgen"
		configure_args+=" -DCLANG_TABLEGEN=${wrksrc}/build/HOST/bin/clang-tblgen"
		cd ../..
	fi

	case "$XBPS_TARGET_MACHINE" in
		i686*) _arch="X86";;
		x86_64*) _arch="X86";;
		arm*) _arch="ARM";;
		aarch64*) _arch="AArch64";;
		mips*) _arch="Mips";;
	esac
	configure_args+=" -DLLVM_TARGET_ARCH=${_arch}"
	configure_args+=" -DLLVM_DEFAULT_TARGET_TRIPLE=${XBPS_CROSS_TRIPLET:-$XBPS_TRIPLET}"
}

do_install() {
	vlicense LICENSE.TXT

	cd build
	cmake -DCMAKE_INSTALL_PREFIX=${DESTDIR}/usr -P cmake_install.cmake

	# Fix permissions of static libs
	chmod -x ${DESTDIR}/usr/lib/*.a

	# Required for multilib.
	if [ "$XBPS_TARGET_MACHINE" = "x86_64" ]; then
		for _header in llvm-config; do
			mv ${DESTDIR}/usr/include/llvm/Config/${_header}{,-64}.h
			vinstall ${FILESDIR}/llvm-Config-${_header}.h 644 \
				usr/include/llvm/Config ${_header}.h
		done
	fi

	# Remove llvm-config-host in cross builds.
	if [ "$CROSS_BUILD" ]; then
		rm -f ${DESTDIR}/usr/bin/llvm-config-host
	fi
}

libllvm3.9_package() {
	short_desc+=" - runtime library"
	pkg_install() {
		vmove "usr/lib/libLLVM-*.so*"
	}
}