http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54392
--- Comment #18 from Paolo Carlini <paolo.carlini at oracle dot com> 2013-01-11 16:03:23 UTC --- PS: for 4.9, I think we essentially agree that we want to roll in anyway __versa_string, break the ABI, etc. We also exchanged some ideas about that with Jason, off lists.