[Bug libstdc++/54172] [4.7 Regression] __cxa_guard_acquire thread-safety issue

[bkoz at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54172

--- Comment #15 from Benjamin Kosnik <bkoz at gcc dot gnu.org> 2012-09-10 
05:08:51 UTC ---
In 4.7-branch