mkdir code && cd code
git clone https://github.com/llvm-mirror/llvm.git
cd llvm/tools && git clone https://github.com/llvm-mirror/clang.git && cd ..
mkdir build && cd build
cmake .. && make -j4
brew install libomp
cd ~
dummp_omp_file.cpp
/code/llvm/build/bin/clang++ -fopenmp=libomp dummy_omp_file.cpp -o dummy