http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60328
--- Comment #2 from reagentoo at gmail dot com --- (In reply to Jason Merrill from comment #1) > GCC 4.9 implements the tentative resolution of DR 1430. > > http://open-std.org/jtc1/sc22/wg21/docs/cwg_active.html#1430 > > *** This bug has been marked as a duplicate of bug 51239 *** But this test-case compiles with Clang normal.