# Maintainer: PktSurf <smlinux@pktsurf.in>
app=llvm
version=17.0.6
build=1sml
homepage="http://llvm.org/"
download="https://github.com/llvm/llvm-project/releases/download/llvmorg-$version/llvm-$version.src.tar.xz"
desc="LLVM compiler toolkit"
requires="libffi libxml2 perl cmake"
preservestaticlibs=1

prepbuilddir() {
  mkandenterbuilddir
  rm -rf $app-project-$version.src
  # In case the user decides to resume an incomplete build
  [[ -d cmake ]] && rm -r cmake

  tar xf $srcdir/$app-project-$version.src.tar.?z*
  cd $app-project-$version.src 
  fixbuilddirpermissions

  applypatch $srcdir/install-prefix.patch
  applypatch $srcdir/llvm-stack-size.patch
}

build() {
  unset CFLAGS CXXFLAGS

  buildtargets="X86;AMDGPU;BPF"
  
  mkdir -p build
  cmake -B build -G Ninja -Wno-dev -S llvm \
    -DCMAKE_BUILD_TYPE=Release \
    -DCMAKE_INSTALL_PREFIX=/usr \
    -DLLVM_BUILD_DOCS=OFF \
    -DLLVM_BUILD_EXAMPLES=OFF \
    -DLLVM_ENABLE_ASSERTIONS=OFF \
    -DLLVM_BUILD_TESTS=OFF \
    -DLLVM_INCLUDE_TESTS=OFF \
    -DLLVM_ENABLE_FFI=ON \
    -DLLVM_ENABLE_RTTI=ON \
    -DLLVM_ENABLE_LIBEDIT=OFF \
    -DLLVM_INSTALL_UTILS=ON \
    -DLLVM_TARGETS_TO_BUILD="$buildtargets" \
    -DLLVM_INCLUDE_BENCHMARKS=OFF \
    -DLLVM_INCLUDE_EXAMPLES=OFF \
    -DLLVM_BUILD_LLVM_DYLIB=ON \
    -DLLVM_LINK_LLVM_DYLIB=ON \
    -DLLVM_ENABLE_ZSTD=ON \
    -DLLVM_ENABLE_ZLIB=ON \
    -DLLVM_ENABLE_DUMP=ON \
    -DLLVM_BUILD_TESTS=OFF \
    -DLLVM_ENABLE_LIBCXX=OFF \
    -DLLVM_BUILD_EXTERNAL_COMPILER_RT=ON \
    -DLLVM_DEFAULT_TARGET_TRIPLE="x86_64-pc-linux-musl" \
    -DLLVM_HOST_TRIPLE="x86_64-pc-linux-musl"

  cmake --build build
  python3 llvm/utils/lit/setup.py build

  DESTDIR="$pkg" cmake --install build
  python3 llvm/utils/lit/setup.py install --root="$pkg"

  cp LICENSE.TXT $pkgdocs/

  mkfinalpkg
}

sha512sums="
f369236cc5b96283ce9251b0abdc6b320f0d651182547622a8116df29a7540f6f818f3a20917e02b6afc1bc68a1e142d3c0abb87dc3d7df72308a646e6facc80  llvm-project-17.0.6.src.tar.lz
ebc0be314c129ef38f00c8c2be9d589658cae89ac8cda109e35933b5044e775a3d370c0c584d3e501e4d43167b8523d8c5e5a85653d8ebe853571697ae40fb35  install-prefix.patch
2123f01d8075a15cf8c2d8091fc8c92cb99807b1d654af13b436690ddb55f3e893a494593b3c92aeab26e50db4e0500ac688129ab6bc11e4765c0308b90db101  llvm-stack-size.patch
"