[Bug libstdc++/50862] deadlock in std::condition_variable_any

[redi at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50862

--- Comment #10 from Jonathan Wakely <redi at gcc dot gnu.org> 2011-10-26 
10:29:50 UTC ---
Yes, I suppose it should be:

~_Unlock()
{
  if (uncaught_exception())
    __try { _M_lock.lock(); } __catch(...) { }
  else
    _M_lock.lock();
}