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