https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66848
--- Comment #26 from Jack Howarth <howarth.at.gcc at gmail dot com> --- Created attachment 37100 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=37100&action=edit proposed patch to suppress PR66848 on darwin The attached proposed patch suppresses PR66848 on darwin until either the underlying bug in the v6.6 based boehm-gc is fixed or boehm-gc in gcc is rebased on 7.2 or later which doesn't suffer from this bug.