[Bug fortran/78387] OpenMP segfault/stack size exceeded writing to internal file

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78387

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
I thought they are supposed to be, at least that is what we had unit_lock,
u->lock etc. for.  So has something in libgfortran changed so that it doesn't
properly lock the units anymore?