FindBLAS: Use Intel fortran interface on OS X even with GNU Fortran

According to Intel MKL Link Line Advisor, there is no GNU Fortran
interface library provided for OS X variant of Intel MKL. Because of
this missing library, FindBLAS was failing on OS X, looking for
nonexistent library libmkl_gf_[i]lp64.

To prevent this, FindBLAS will now always use Intel Fortran interface
for MKL on OS X (libmkl_intel_[i]lp64), even with GNU Fortran.
1 file changed