New comment by atweiden on void-packages repository https://github.com/void-linux/void-packages/pull/11546#issuecomment-490673636 Comment: Upstream [notes](https://github.com/cryfs/cryfs/blob/develop/README.md#troubleshooting) not building against omp "will cause slower file system mount times". This was the impetus for adding the libomp package in the first place. I think cryfs should be linking against libomp. Maybe something is going wrong because I'm not including the full `-DOpenMP_CXX_FLAGS='-Xpreprocessor -fopenmp -I/path/to/openmp/include'` as recommend by upstream. IIRC, I left out the `-X` and `-f` opts there because of difficulty passing the whitespaced opts during the build.