http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54806
--- Comment #11 from Jack Howarth <howarth at nitro dot med.uc.edu> 2012-10-06 00:56:37 UTC --- Also for gcc47-4.7.2 from fink, I see... % nm /sw/lib/gcc4.7/lib/libstdc++.6.dylib | grep emutls U ___emutls_get_address 00000000000b72c0 D ___emutls_v._ZSt11__once_call 00000000000b72a0 D ___emutls_v._ZSt15__once_callable 00000000000b6e20 d ___emutls_v._ZZN12_GLOBAL__N_110get_globalEvE6global but for gcc47-4.7.2 from MacPorts, I see... % nm /opt/local/lib/libstdc++.6.dylib | grep emutls %