# Description: LLVM compiler backend
# URL:         http://llvm.org/
# Maintainer:  Thomas Penteker, tek at serverop dot de
# Packager:    Tilman Sauerbeck, tilman at crux dot nu
# Depends on:  python cmake

name=llvm
version=3.9.1
release=3
source=(http://llvm.org/releases/$version/$name-$version.src.tar.xz \
        llvm-config.h 0009-Revert-AMDGPU-Fix-an-interaction-between-WQM-and-pol.patch)

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

  cd $name-$version.src

  patch -p1 -i $SRC/0009-Revert-AMDGPU-Fix-an-interaction-between-WQM-and-pol.patch

  mkdir build
  cd build

  cmake -DLLVM_ENABLE_CXX1Y=1 \
    -DLLVM_INCLUDE_EXAMPLES=0 \
    -DLLVM_INCLUDE_TESTS=0 \
    -DLLVM_TARGETS_TO_BUILD='X86;AMDGPU;BPF' \
    -DLLVM_BUILD_LLVM_DYLIB=1 \
    -DCMAKE_BUILD_TYPE=Release \
    -DCMAKE_INSTALL_PREFIX=/usr ..

  MAKEFLAGS="$MAKEFLAGS" make
  make DESTDIR=$PKG 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/

}