Fast LLVM Build

configure-llvm-build.sh

# Based on the following instructions:
# https://blogs.s-osg.org/an-introduction-to-accelerating-your-build-with-clang/
# https://blogs.s-osg.org/a-conclusion-to-accelerating-your-build-with-clang/

# General cmake instructions for LLVM:
# https://llvm.org/docs/CMake.html

cmake -G Ninja -DLLVM_TARGETS_TO_BUILD="X86" -DCMAKE_BUILD_TYPE="Debug" -DBUILD_SHARED_LIBS=ON -DLLVM_USE_LINKER=gold -DLLVM_OPTIMIZED_TABLEGEN=ON -DCMAKE_C_COMPILER="/usr/lib/ccache/clang" -DCMAKE_CXX_COMPILER="/usr/lib/ccache/clang++" -DCMAKE_ASM_COMPILER="/usr/bin/llvm-as-5.0" ~/respo/llvm