http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49829
--- Comment #22 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-01-24 13:59:19 UTC --- On powerpc64-linux apparently a few symbols are gone since yesterday: _ZNSbIwSt11char_traitsIwESaIwEE4_Rep20_S_empty_rep_storageE@@GLIBCXX_3.4 OBJECT GLOBAL DEFAULT 16 _ZNSs4_Rep20_S_empty_rep_storageE@@GLIBCXX_3.4 OBJECT GLOBAL DEFAULT 16 _ZNSt8numpunctIcE2idE@@GLIBCXX_3.4 OBJECT GLOBAL DEFAULT 4 _ZNSt8numpunctIwE2idE@@GLIBCXX_3.4 OBJECT GLOBAL DEFAULT 4 in 32-bit libstdc++.so.6 and _ZNSbIwSt11char_traitsIwESaIwEE4_Rep20_S_empty_rep_storageE@@GLIBCXX_3.4 OBJECT GLOBAL DEFAULT 32 _ZNSs4_Rep20_S_empty_rep_storageE@@GLIBCXX_3.4 OBJECT GLOBAL DEFAULT 32 _ZNSt8numpunctIcE2idE@@GLIBCXX_3.4 OBJECT GLOBAL DEFAULT 8 _ZNSt8numpunctIwE2idE@@GLIBCXX_3.4 OBJECT GLOBAL DEFAULT 8 in 64-bit libstdc++.so.6.