[Bug fortran/64273] Add support for "#pragma warning" or "!GCC$ warning directive"

[dominiq at lps dot ens.fr]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64273

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2014-12-11
     Ever confirmed|0                           |1

--- Comment #1 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
> There are two possibilities, either to use a real
>   #pragma warning
> or to make it more Fortran-like and use
>   !GCC$ warning directive

Yuck!-(I think there are a lot of really more important things to do. In any
case choose the latter).