https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87359
--- Comment #30 from Dominique d'Humieres <dominiq at lps dot ens.fr> --- > This is really strange, is that after Paul's fix? It is with gfortran 8.2 (from fink). > This seems to be a hiccup with the I/O. Did you use gcc or clang > as the underlying C compiler? I use gcc.