http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47802
--- Comment #11 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-02-21 18:58:27 UTC --- In libgfortran it is not the user, but libgfortran implementation, so it makes sure it always passes buffer of at least 26 bytes. If there are OSes where we can't trust ctime_r, we could either blacklist them (or whitelist the known good ones), or on some of them try to supply larger buffer (is there any implementation that would overflow say 256 or 1024 bytes)?
