[gfortran,patch] FPE options, once again

[FX Coudert]

This is the new version of the FPE patch for gfortran, using 
glibc-specific code on systems where it is available, and runtime 
detection of SSE units.

I think the code itself is now in pretty good shape, although i'm a bit 
worried of having heard no word from other gfortran developpers about 
things such as the option name and the need/convenience of having 
environment variables.

Regtested on i686-linux. Testing in progress on i686-freebsd, 
x86_64-linux and i386-openbsd (no glibc, no SSE).

OK for mainline? Do we want this on 4.0?

FX
-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: fpe3.ChangeLog
URL: <http://gcc.gnu.org/pipermail/fortran/attachments/20050901/271bed83/attachment.ksh>
-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: fpe3.diff
URL: <http://gcc.gnu.org/pipermail/fortran/attachments/20050901/271bed83/attachment-0001.ksh>