https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58972
--- Comment #4 from Akim Demaille <akim.demaille at gmail dot com> --- Could someone confirm this bug? The 4.9 I have does not ICEs and still refuses both sources. akim@erebus /tmp $ g++-mp-4.9 --version 13:12:11 g++-mp-4.9 (MacPorts gcc49 4.9-20140416_2) 4.9.0 20140416 (prerelease) Copyright (C) 2014 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.