[Bug fortran/54687] Use gcc option machinery for gfortran

[dominiq at lps dot ens.fr]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=54687

Dominique d'Humieres <dominiq at lps dot ens.fr> changed:

           What    |Removed                     |Added
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             Status|NEW                         |WAITING

--- Comment #13 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
No activity since over two years. Any objection to close this PR as FIXED?