build failure, GMP not available

[Paul Brook]

> Thanks for the report.  I believe some of your issues can be addressed.
> I'll add what I can to my TODO list.  However I don't know if anything
> will be done for the 4.1.x series given the restriction for regression
> fixes only.  I guess it depends on your definition of "regression", these
> problems have always existed since we started relying on gmp/mpfr in 4.0.
> However the 3.4 series didn't need these libraries so it never had these
> kind of problems building fortran.  :-)

I think previous consensus has been that "regressions" against g77 aren't 
really regressions for release purposes. We removed one language and added a 
new one, they just happen to both be called FORTRAN ;-)

Paul