opt/llvm/Pkgfile

# Description: LLVM compiler backend
# URL:         http://llvm.org/
# Maintainer:  Thomas Penteker, tek at serverop dot de
# Depends on:  cmake libffi ninja

name=llvm
version=7.0.0
release=2
source=(https://llvm.org/releases/$version/$name-$version.src.tar.xz
  llvm-config.h)

build() {
  export CC=gcc
  export CXX=g++

  cd $name-$version.src

  mkdir build
  cd build

  cmake .. -G Ninja \
    -DLLVM_PARALLEL_COMPILE_JOBS="${JOBS:-1}" \
    -DLLVM_ENABLE_CXX1Y=1 \
    -DLLVM_INCLUDE_EXAMPLES=0 \
    -DLLVM_INCLUDE_TESTS=0 \
    -DLLVM_ENABLE_FFI=1 \
    -DLLVM_ENABLE_OCAMLDOC=0 \
    -DLLVM_TARGETS_TO_BUILD='X86;AMDGPU;BPF' \
    -DLLVM_BUILD_LLVM_DYLIB=1 \
    -DLLVM_LINK_LLVM_DYLIB=1 \
    -DLLVM_INSTALL_UTILS=1 \
    -DCMAKE_BUILD_TYPE=Release \
    -DCMAKE_INSTALL_PREFIX=/usr \
    -DLLVM_APPEND_VC_REV=0 \
    -Wno-dev

  ninja
  DESTDIR=$PKG ninja install

  # multilib stub
  mv $PKG/usr/include/llvm/Config/llvm-config{,-64}.h
  install -m 0644 $SRC/llvm-config.h $PKG/usr/include/llvm/Config/
}