Re: FLIBS (AC_F77_LIBRARY_LDFLAGS) in CVS

[Steven G. Johnson]

Paul Martinolich wrote:
>According to their documentation, .fpp is not a valid extension, so
>maybe they default to g77 in this case.  They use .F for preprocessed
>FORTRAN.  If I use .F, then I get a usage error (for -E).

I've never heard of anyone using .fpp either, and .F is fairly standard (as
standard as things get with Fortran) for preprocessed Fortran code.  On the
other hand, autoconf 2.13 uses .fpp for that test too, and it no one has
reported any problems yet with that particular macro (_AC_PROG_F77_GNU), so
there's no utterly compelling reason to switch it to .F...although it might
be a good idea, for sanity.  (Remember, it is fine if non-g77 compilers to
fail to preprocess the file in that test, or otherwise barf.)

Steven