https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61173
--- Comment #8 from Jerry DeLisle <jvdelisle at gcc dot gnu.org> --- I will backport to 4.9 in the next few days so it will get into 4.9.1 I am not sure how your snapshot is set up. If it is using dynamically loaded library, you may be getting the newer gfortran calling an older libgfortran in the library search path. So try with -static to see if that works. It should be in the 4.10 trunk by the date you gave for the snapshot.