Am Donnerstag, 3. November 2011, 00:41:40 schrieb Nico Kadel-Garcia:
> 
> Oh? Let me look...... Son of a gun. gcc *used* to use f2c for Fortran
> compilation. It was in gcc-3.x, which is the default compiler for
> Scientific Linux 4.  and still in production use. So my claim is out
> of date and only valid on older systems. Thanks for the update.

f2c exists outside the gnu compiler collection, that's my point, it is just a 
third party tool (and was always) from netlib. The fortran compiler for the 
gcc was g77 before gcc 4. I do of course not remember when g77 was introduced 
(I think it was not there 16 years ago since I remeber a had to use f2c for a 
special project in 1995 to make legacy fortran code compile).
But please, I do not want to hijack this thread I just wanted to clarify that 
gfortran is a different beast (and is very similar to ifort in many aspects).

Back on topic, yet another fortran compiler (I do not know its status) is g95 
(www.g95.org), as far as I remeber its development stopped a few years ago and 
gfortran took over.