http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56838
--- Comment #2 from Hristo Venev <mustrumr97 at gmail dot com> 2013-04-04 16:17:04 UTC --- The candidate in /usr/include/boost/bind/bind.hpp:1478 a.cpp:92092 fails. SFINAE so this candidate is skipped. However the one in /usr/include/boost/bind/bind_cc.hpp:35 a.cpp:92176 would instantiate successfully. I think this is the one called by gcc 4.8.0.
