[libgfortran] Patch pings

[Roger Sayle]

I'd appreciate it if a gfortran maintainer could approve
http://gcc.gnu.org/ml/fortran/2004-07/msg00230.html
Minor tweak to support Compaq Tru64

This is also a step toward resolving PR libgfortran/16137.


I also believe the following deserves some discussion
http://gcc.gnu.org/ml/fortran/2004-05/msg00316.html
Silence GNU extension warnings with -std=gnu


Thanks in advance,

Roger
--