OMP MacOS

[TeachRaccooon]

Need to figure out what the following issue is about:

/Users/runner/work/RandLAPACK/RandLAPACK/RandLAPACK/../RandLAPACK/drivers/rl_rbki.hh:250:5: error: use of undeclared identifier 'omp_set_num_threads' omp_set_num_threads(this->num_threads_some);

Using a temporary fix to avoid this call on MacOS platforms for now.

[rileyjmurray]

The way to fix this is just to wrap OpenMP calls with RandLAPACK_HAS_OpenMP. For example,

#if RandLAPACK_HAS_OpenMP
int num_threads = omp_get_num_threads();
#else 
int num_threads = 1;
#endif