https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67265
--- Comment #1 from Johannes Dewender <gnu at JonnyJD dot net> --- Created attachment 36210 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=36210&action=edit Makefile with failing, working and workaround flags I found the bug using gcc 5.2.0 (Arch Linux), but I also tested gcc 5.1.0 and gcc 4.9.2. So this is not a brand new bug. Not sure if it did work as expected in versions before that.