macOS: compilation fails with clang and openmp

[mwageringel]

Is it possible to use -fopenmp with clang? Currenty compiling this package fails on macOS:

clang: error: unsupported option '-fopenmp'

[slel]

It seems the Apple-provided clang does not support openmp. A workaround is to install an openmp-enabled clang via Homebrew:

brew install llvm libomp

Related:

• https://www.startpage.com/do/dsearch?query="clang:+error:+unsupported+option+'-fopenmp'"
• https://stackoverflow.com/questions/60005176
• https://momi2.readthedocs.io/en/latest/installation.html#installing-on-macos
• https://github.com/ChristophKirst/ClearMap2/issues/15#issuecomment-652635274