Hi Mono,

If you are using Xcode 8, this process doesn't work. You need to open the Stack Overflow link I posted above and look down to the last comment of the approved answer. It describes how to install clang-3.8 via MacPorts, which appears to be the new way to get OpenMP support in Xcode.

As far as the Build Settings, you need to select your target, then select Build Settings, and scroll down to the compiler area (Apple LLVM 8.0 - Custom Compiler Flags) and enter the info in there.

I hope this helps, Norm