http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33255
--- Comment #19 from Paolo Carlini <paolo.carlini at oracle dot com> 2011-07-24 22:49:32 UTC --- Just as a note, wanted also to add that if I understand correctly the (temporary?!?) small issue with system headers, it would also affect people building their code with -D_GLIBCXX_CONCEPT_CHECKS (by itself largely deprecated and not being updated for c++0x). Again, I don't see this as a serious issue if the new warning remains, for now at least, outside -Wall.
