pkg:setup
ENV.libcxx if ENV.compiler == :clang
(buildpath/"tools/clang").install resource("clang")
(buildpath/"tools/clang/tools/extra").install resource("clang-extra-tools")
(buildpath/"projects/openmp").install resource("openmp")
(buildpath/"projects/libcxx").install resource("libcxx")
(buildpath/"projects/libunwind").install resource("libunwind")
(buildpath/"tools/lld").install resource("lld")
(buildpath/"tools/polly").install resource("polly")
(buildpath/"projects/compiler-rt").install resource("compiler-rt")
ENV.permit_arch_flags
args = %W[-DLIBOMP_ARCH=x86_64 -DLINK_POLLY_INTO_TOOLS=ON -DLLVM_BUILD_EXTERNAL_COMPILER_RT=ON -DLLVM_BUILD_LLVM_DYLIB=ON -DLLVM_ENABLE_EH=ON -DLLVM_ENABLE_FFI=ON -DLLVM_ENABLE_LIBCXX=ON -DLLVM_ENABLE_RTTI=ON -DLLVM_INCLUDE_DOCS=OFF -DLLVM_INSTALL_UTILS=ON -DLLVM_OPTIMIZED_TABLEGEN=ON -DLLVM_TARGETS_TO_BUILD=all -DWITH_POLLY=ON -DFFI_INCLUDE_DIR=#{Formula["libffi"].opt_lib}/libffi-#{Formula["libffi"].version}/include -DFFI_LIBRARY_DIR=#{Formula["libffi"].opt_lib} -DLLVM_CREATE_XCODE_TOOLCHAIN=ON ]
mkdir "build" && cd build
cmake -G Unix Makefiles .. *(std_cmake_args + args)
make
make DESTDIR=${PKG_DEST} install
make DESTDIR=${PKG_DEST} install-xcode-toolchain