pkg:setup
(buildpath/"projects/libcxx").install resource("libcxx")
(buildpath/"tools/clang").install resource("clang")
mkdir "build" && cd build
args = std_cmake_args
args << "-DCMAKE_OSX_SYSROOT=/" unless MacOS::Xcode.installed?
args << "-DLLVM_ENABLE_LIBCXX=ON"
args << ".."
cmake -G Ninja *args
ninja clang-format
bin.install "bin/clang-format"