No Fortran

[Craig Burley]

>Craig, I'm also sending this directly to you, as it seems you developed 
>that feature back then.

I'm still not entirely sure that we should avoid building libg2c
even when `f77' is not in the list of languages.  Do we avoid
building the C++ libraries when "c++" isn't in that list?

The reason I ask is, just because g77 (and f771) don't get built
doesn't mean users won't want, or be able to, use a libg2c that
gets built with it:

  f2c foo.f
  gcc foo.c -lg2c -lm

Also, looking at egcs 1.1a, I don't see evidence that the libraries
get built with *any* definition of the LANGUAGES macro in place.

Maybe I'm wrong (I haven't tried it), or maybe this has changed
in the mainline.  Otherwise, how could I implement this, other
than by having egcs/libf2c/Makefile.in test whether egcs/gcc/lang-f77
exists -- something that seems a bit questionable, though it might
work?

        tq vm, (burley)