PATCH: PR testsuite/12040: GDB Fortran tests use g77 instead of gfortran

[Joel Brobecker]

> It is definitely in upstream dejagnu.
> But, I added a new bit to this code that isn't (yet -- submitted
> yesterday) upstream.  So it must remain for a while yet.

I am actually wondering now whether we might want to ever remove
this code. It's pretty convenient when we discover dejagnu bugs
and limitations... We could possibly treat the entire dejagnu
library the way we treat readline? (thinking aloud)

-- 
Joel