GMX_BUILD_OWN_FFTW -- breaks without Fortran compiler?
I encountered an issue in building Gromacs/Native Client where the GMX_BUILD_OWN_FFTW would fail because it was missing a functional fortran compiler. I've worked around this by introducing an option to skip fortran compilation in the FFTW build. Roland asked if this was a general situation and, if so, whether we should set the disable-fortran option as a default. Comments?
(BTW this was in release-4-6, but I think it should apply to master as well)