# Description: clang compiler
# URL:         https://clang.llvm.org/
# Maintainer:  Thomas Penteker, tek at serverop dot de
# Depends on:  compiler-rt llvm

name=clang
version=10.0.0
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() {
  mv $name-tools-extra-$version.src $name-$version.src/tools/extra

  cmake -S$name-$version.src -Bbuild -GNinja \
    -DCMAKE_INSTALL_PREFIX=/usr \
    -DCMAKE_BUILD_TYPE=Release \
    -DLLVM_INCLUDE_TESTS=0 \
    -DLLVM_PARALLEL_COMPILE_JOBS="${JOBS:-1}" \
    -Wno-dev
  cmake --build build
  DESTDIR=$PKG cmake --install build

  # -DCMAKE_INSTALL_LIBEXECDIR is 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

  # prepare compiler-rt
  local txtfiles="asan_blacklist.txt cfi_blacklist.txt dfsan_abilist.txt hwasan_blacklist.txt msan_blacklist.txt"
  mkdir -p $PKG/usr/lib/clang/$version/share
  for i in $txtfiles; do ln -s /usr/share/$i $PKG/usr/lib/clang/$version/share/$i; done
}