http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54538
--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-09-10 08:37:49 UTC --- In r189000 there were two different symbols: _ZNSt17_Function_handlerIFbRFiSt6vectorIiSaIiEEEENSt11chain_rangeIRS2_E12default_predMUlPS3_E_EE9_M_invokeERKSt9_Any_dataS4_ _ZNSt17_Function_handlerIFbRFiSt6vectorIiSaIiEEEENSt11chain_rangeIOS2_E12default_predMUlPS3_E_EE9_M_invokeERKSt9_Any_dataS4_ one was &, the other &&. Now they are both: _ZNSt17_Function_handlerIFbRFiSt6vectorIiSaIiEEEENSt11chain_rangeIT_E12default_predMUlPS3_E_EE9_M_invokeERKSt9_Any_dataS4_ ...IRS2_E... vs. ... IOS2_E... vs. ...IT_E...