http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51906
--- Comment #5 from Jonathan Wakely <redi at gcc dot gnu.org> 2012-01-19 20:50:18 UTC --- (In reply to comment #3) > but r180136 (prior to the PR 50196 fix commit) doesn't show these (or any) > failures in libstdc++. It's unsurprising that the tests didn't fail when they didn't run :) prior to fixing 50196 those tests were UNSUPPORTED