http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50721
--- Comment #5 from Tobias Burnus <burnus at gcc dot gnu.org> 2011-10-13 22:30:31 UTC --- Note: The program works if it is compiled with "-O" instead without optimization (-O0). Unsurprisingly, for the big program is sufficient to compile only fgsl.f90 with -O.