[Bug c++/53067] c++0x GCC 4.7.0 Regression std::ref with unordered sets

[paolo.carlini at oracle dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53067

--- Comment #9 from Paolo Carlini <paolo.carlini at oracle dot com> 2012-10-11 22:21:50 UTC ---
Turns out I was wrong in my last message! Francois made me notice that in fact
in my experiments I was reverting the quick hack in an incorrect way. I have
now properly done the reversion:

  http://gcc.gnu.org/ml/gcc-cvs/2012-10/msg00502.html

and things work great in mainline.