https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79876
--- Comment #14 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Created attachment 41098 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=41098&action=edit gcc7-pr79876.patch Found https://developer.apple.com/library/content/qa/qa1419/_index.html that documents the default to be 512KB which is way too low (though it is unclear if it is the same on all Darwin versions). Anyway, here is an untested patch to bump the default on Darwin only.
