https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67571
--- Comment #3 from werner at beroux dot com --- I should clarify that the code being compiled might have changed as well between the two: https://github.com/ariya/phantomjs/commits/master from 2015-06-25T20:16:02.750261Z (working) to 2015-09-05T08:36:46.296402Z (started breaking) and 2015-09-14T07:32:46.758499Z (still breaking)