https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79231
--- Comment #1 from Jürgen Reuter <juergen.reuter at desy dot de> --- For us this is a serious regression that would exclude gfortran 7.1 if that weren't fixed before the official release. Not optimistic that we can easily work around here. So please try to fix it in time! Will be much appreciated!