[Bug fortran/24357] New: whither ratfor?

["wilson at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

The ratfor support broke when we dropped the old f77 front end.

aretha$ touch tmp.r
aretha$ ./xgcc -B./ tmp.r
xgcc: tmp.r: Ratfor compiler not installed on this system
aretha$

This is the default message we get when a language hasn't been configured in,
but I did configure in the fortran compiler and hence something more
interesting should have happened.

An older compiler (gcc 3.3.3) gives me
aretha$ gcc tmp.r
gcc: installation problem, cannot exec `ratfor': No such file or directory
aretha$
which would have worked if I had the ratfor preprocessor installed.

It isn't clear to me if we should be dropping the ratfor support, or if we
should be fixing it.  Hence this PR.  A web search shows that the language is
still alive, but I can't recall the last time someone mentioned it on a gcc
list.

If we want to fix it, then we need to add a @ratfor spec to the
fortran/lang-specs.h file.  Perhaps just one copied from the old f77 front end
would do.

If we want to remove it, then we need to delete the .r filename docs from
doc/invoke.texi.  We need to delete ratfor from the -x language list.  And we
need to delete the default .r support in the gcc.c file.


-- 
           Summary: whither ratfor?
           Product: gcc
           Version: 4.1.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: fortran
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: wilson at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24357