http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47433
--- Comment #11 from Paolo Carlini <paolo.carlini at oracle dot com> 2011-01-24 14:11:05 UTC --- Thanks Johannes. Jon is right (and indeed we are already using the pattern elsewhere): when we are removing the std:: qualification from std::swap inside a namespace != std, let's also add an using std::swap before. Maybe isn't really necessary due to namespace association, but let's play safe. Patch pre-approved.