Konstantin Olchanski wrote: > On Mon, Jun 02, 2008 at 08:22:24PM +0100, Jon Peatfield wrote: >>> I installed SL5.1 and seems g77 isn't installed. > > > Yes, in recent GCCs, the very nice g77 compiler was replaced by something > called gfortran. If I remember right, the main reason was the retirement > of the g77 main author and maintainer. > > The new compiler is written by some new people and it strives to implement > the recent Fortran standards (F-95, etc). > > Last time I looked a few years ago, compatibility with Fortran-II, > Fortran-4, DEC Fortran, Fortran-77 and need to compile antique (but still > quite usable) programs was not high in the priority list for gfortran > developers. Proper Fortran-77 is no problem any more with gfortran, but with vendor specific, non-standard extensions you will have no luck. Matthias