http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49141
--- Comment #4 from Paolo Carlini <paolo.carlini at oracle dot com> 2011-05-24 14:49:30 UTC --- But isn't imported in std::, because something else is missing. We don't do this kind of config-time work with a very small granularity. We want dg-require-c-std to be safe.
