https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83230
--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> --- The Makefile doesn't have any -O* options, is this all without optimizations? I admit I've been only compiling the fortran source with trunk f951, the rest with the system gcc (6.3.1), but for f951 I've tried several revisions including /opt/notnfs/gcc-bisect/obj/gcc/f951.255190 -quiet main_ut.f90; gfortran WOXDR.o WOStdHep.o WOStdHepRdr.o -ldl -lstdc++ -o rt_error main_ut.f90; ./rt_error writing stdhep event ... ... done. Starting to read that file:
