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

[abensonca at gmail dot com]

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

--- Comment #5 from Andrew Benson <abensonca at gmail dot com> ---
I couldn't find anything in the OpenMP specifications which addresses this
issue - so presumably it's undefined behavior as far as OpenMP is concerned.
But it seems that internal file writes were intended to be thread safe in
gfortran - am I correct in understanding that? From what I can tell Intel
fortran also makes internal file writes thread safe, for what it's worth.