You probably want to build OpenBLAS.
Also make sure to sudo yum install hdf5, gsl, itk, netcdf, pcre, zlib, openblas-devl (still end up having to make my own), etc…. that seems to have helped getting around the aforementioned empty string hash issue.
CCmake3 and Cmake3 also seems to have helped.
I recall having to install ccache as well.
Overall, it is MUCH easier to build it in Ubuntu, sigh.