Building Clang From source

clang-build.sh

 cmake -G Ninja -DLLVM_TARGETS_TO_BUILD=X86 \
  -DCMAKE_INSTALL_PREFIX=$PWD/install \
  -B $PWD/build \
  -DCMAKE_BUILD_TYPE=Release \
  -DLLVM_INCLUDE_TESTS=OFF \
  -DLLVM_INCLUDE_EXAMPLES=OFF \
  -DLLVM_INCLUDE_UTILS=OFF \
  -DLLVM_INCLUDE_DOCS=OFF \
  -DLLVM_ENABLE_ZLIB=ON \
  -DLLVM_ENABLE_BACKTRACES=OFF \
  -DLLVM_ENABLE_PROJECTS="clang;lld;lldb;clang-tools-extra" \
  -DLLVM_ENABLE_RUNTIMES="libcxx;libcxxabi;compiler-rt" \
  -DLLVM_USE_LINKER=lld \
  -DLLVM_BUILD_TOOLS=ON \
  -DLLVM_ENABLE_PLUGINS=OFF \
  -DLLDB_ENABLE_CURSES=OFF \
  -DLLDB_ENABLE_LIBEDIT=OFF \
  -DLLVM_BINUTILS_INCDIR=ON \
  -DCLANG_PLUGIN_SUPPORT=OFF \
  -DCOMPILER_RT_INCLUDE_TESTS=OFF \
  -DCOMPILER_RT_BUILD_SANITIZERS=ON \
  -DCOMPILER_RT_ENABLE_IOS=OFF \
  -DCOMPILER_RT_ENABLE_WATCHOS=OFF \
  -DCOMPILER_RT_ENABLE_TVOS=OFF \
  -DLIBCXX_INSTALL_EXPERIMENTAL_LIBRARY=ON \
  -DLIBCXX_CXX_ABI=libcxxabi \
  -DLIBCXXABI_USE_LLVM_UNWINDER=OFF \
  -DLIBCXX_ABI_VERSION=2 \
  -DLLVM_PARALLEL_LINK_JOBS=2 \
  -DLLVM_ENABLE_LIBCXX=ON \
  -DLLVM_ENABLE_LTO=On \
  -S ~/code/llvm-project/llvm/