llvm 22.1.8
=
https://github.com/llvm/llvm-project/archive/refs/tags/llvmorg-22.1.8.tar.gz

``` sh *** build ***
cmake -B build \
  -DCMAKE_BUILD_TYPE=Release \
  -DCMAKE_INSTALL_PREFIX="$pkgpath" \
  -DCMAKE_INSTALL_LIBDIR=lib \
  -DLLVM_ENABLE_PROJECTS="clang;lld" \
  -DLLVM_ENABLE_RUNTIMES="libclc" \
  -DLLVM_TARGETS_TO_BUILD="AMDGPU;X86" \
  -DLLVM_BUILD_LLVM_DYLIB=ON \
  -DLLVM_LINK_LLVM_DYLIB=ON \
  -DLLVM_ENABLE_RTTI=ON \
  -DCLANG_DEFAULT_LINKER=lld \
  llvm
cmake --build build -j$(nproc)
cmake --install build
```