[Bug c++/53039] [4.7/4.8 Regression] including <functional> breaks std::is_convertible with template-pack expansion

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53039

--- Comment #5 from H.J. Lu <hjl.tools at gmail dot com> 2012-04-19 14:49:32 UTC ---
(In reply to comment #4)
> HJ, can you help with the search? (mind the -std=c++11)

My regression hunt machine is down. It will take a while to
get it back.