[Bug fortran/57663] Arithmetic error with -fPIC -O

[dominiq at lps dot ens.fr]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57663

--- Comment #5 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
> Well, I am "only" a Fortran programmer, I have no idea of how 
> the GNU compilers are written...

Obviously you know how to build gfortran, so can either try to revert r167779
or apply r171236. However in my opinion you'll do a better use of your time by
building either 4.8.1 or trunk (4.9.0).