R-RScaLAPACK is in breakage of the MPI guidelines. The package MUST be fixed.
I'm not sure what you think is incorrect here. This code only builds (and barely) with openmpi. If you have a specific concern, please feel free to reopen.
Well, mainly that it only builds the OpenMPI version, and does not have any runtime-specific location. But yes, fixing this may be rather difficult.