Added LLVM version 3.8.0 installed by brew in OS X
I needed to add version 3.8.0 in OS X cause brew installed libclang in /usr/local/Cellar/llvm/3.8.0/lib/libclang.dylib
I did followed the instructions provided on how to install dependencies in OS X and did not change the directory or version of llvm or where should be installed.