# Maintainer: Daryl Ronningen <relms@relms.dev>

pkgbase=llvm-project
pkgname=(
  llvm
  llvm-runtimes
  clang
  lld
)
pkgver=17.0.6
pkgrel=1
pkgdesc="collection of modular and reusable compiler and toolchain technologies."
arch=("x86_64")
url="https://llvm.org"
license=("LLVM-exception")
depends=("zlib-ng")
makedepends=()
source=("https://github.com/llvm/llvm-project/releases/download/llvmorg-17.0.6/llvm-project-$pkgver.src.tar.xz")
sha256sums=('58a8818c60e6627064f312dbf46c02d9949956558340938b71cf731ad8bc0813')

build() {
  cd $pkgbase-$pkgver.src

  local cmake_args=(
    -G Ninja \
    -DCMAKE_BUILD_TYPE=Release \
    -DCMAKE_INSTALL_PREFIX=/usr \
    -DCMAKE_INSTALL_LIBDIR=lib \
    -DCMAKE_C_COMPILER=clang \
    -DCMAKE_CXX_COMPILER=clang++ \
    -DLLVM_TARGETS_TO_BUILD=X86 \
    -DLLVM_DEFAULT_TARGET_TRIPLE=x86_64-pc-linux-musl \
    -DLLVM_HOST_TRIPLE=x86_64-pc-linux-musl \
    -DLLVM_ENABLE_EH=ON \
    -DLLVM_ENABLE_RTTI=ON \
    -DLLVM_ENABLE_ZLIB=ON \
    -DLLVM_BUILD_LLVM_DYLIB=ON \
    -DLLVM_LINK_LLVM_DYLIB=ON \
    -DENABLE_LINKER_BUILD_ID=ON \
    -DLLVM_ENABLE_LIBCXX=ON \
    -DLLVM_ENABLE_ZSTD=ON \
    -DLLVM_ENABLE_TERMINFO=ON \
    -DLLVM_ENABLE_LIBEDIT=OFF \
    -DLLVM_ENABLE_LIBXML2=OFF \
    -DLLVM_ENABLE_LIBPFM=OFF \
    -DLLVM_ENABLE_OCAMLDOC=OFF \
    -DLLVM_ENABLE_LLD=ON \
    -DLLVM_INSTALL_UTILS=ON \
    -DLLVM_INSTALL_BINUTILS_SYMLINKS=ON \
    -DLLVM_INSTALL_CCTOOLS_SYMLINKS=ON \
    -DLLVM_INCLUDE_BENCHMARKS=OFF \
    -DLLVM_INCLUDE_DOCS=OFF \
    -DLLVM_INCLUDE_EXAMPLES=OFF \
    -DLLVM_INCLUDE_TESTS=OFF \
    -DCOMPILER_RT_DEFAULT_TARGET_TRIPLE=x86_64-pc-linux-musl \
    -DCOMPILER_RT_BUILD_SANITIZERS=OFF \
    -DCOMPILER_RT_BUILD_XRAY=OFF \
    -DCOMPILER_RT_BUILD_LIBFUZZER=OFF \
    -DCOMPILER_RT_BUILD_PROFILE=OFF \
    -DCOMPILER_RT_BUILD_MEMPROF=OFF \
    -DCOMPILER_RT_BUILD_GWP_ASAN=OFF \
    -DCOMPILER_RT_USE_LLVM_UNWINDER=ON \
    -DCOMPILER_RT_USE_BUILTINS_LIBRARY=ON \
    -DCOMPILER_RT_CXX_LIBRARY=libcxx \
    -DCOMPILER_RT_INSTALL_PATH=/usr/lib/clang/${pkgver%%.*} \
    -DCLANG_DEFAULT_CXX_STDLIB=libc++ \
    -DCLANG_DEFAULT_RTLIB=compiler-rt \
    -DCLANG_DEFAULT_UNWINDLIB=libunwind \
    -DCLANG_INCLUDE_TESTS=OFF \
    -DCLANG_VENDOR="Ikeda Linux" \
    -DLIBCXX_HAS_MUSL_LIBC=ON \
    -DLIBCXX_ENABLE_LOCALIZATION=ON \
    -DLIBCXX_ENABLE_NEW_DELETE_DEFINITIONS=ON \
    -DLIBCXX_CXX_ABI=libcxxabi \
    -DLIBCXX_USE_COMPILER_RT=ON \
    -DLIBCXX_ENABLE_STATIC_ABI_LIBRARY=ON \
    -DLIBCXX_ENABLE_ASSERTIONS=ON \
    -DLIBCXXABI_USE_LLVM_UNWINDER=ON \
    -DLIBCXXABI_ENABLE_STATIC_UNWINDER=ON \
    -DLIBCXXABI_USE_COMPILER_RT=ON \
    -DLIBUNWIND_INSTALL_HEADERS=ON \
    -DLIBUNWIND_USE_COMPILER_RT=ON \
    -DLLD_VENDOR="Ikeda Linux"
  ) 

  cmake -B build-llvm -S llvm "${cmake_args[@]}"
  cmake -B build-llvm-runtimes -S runtimes -DLLVM_ENABLE_RUNTIMES="compiler-rt;libunwind;libcxx;libcxxabi" "${cmake_args[@]}"
  cmake -B build-clang -S clang "${cmake_args[@]}"
  cmake -B build-lld -S lld "${cmake_args[@]}"
  
  ninja -C build-llvm
  ninja -C build-llvm-runtimes
  ninja -C build-clang
  ninja -C build-lld
}

package_llvm() {
  cd $pkgbase-$pkgver.src

  DESTDIR=$pkgdir ninja -C build-llvm install
}

package_llvm-runtimes() {
  cd $pkgbase-$pkgver.src

  DESTDIR=$pkgdir ninja -C build-llvm-runtimes install
}

package_clang() {
  cd $pkgbase-$pkgver.src

  DESTDIR=$pkgdir ninja -C build-clang install

  ln -s clang $pkgdir/usr/bin/cc
  ln -s clang++ $pkgdir/usr/bin/cpp
}

package_lld() {
  cd $pkgbase-$pkgver.src

  DESTDIR=$pkgdir ninja -C build-lld install

  ln -s ld.lld $pkgdir/usr/bin/ld
}