http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54775
--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> 2012-10-02 01:00:21 UTC --- That symbol is std::string::string(string&&), which will be found in the libstdc++ from GCC 4.8, but not necessarily in earlier versions. The error message says it's looking in /usr/lib/libstdc++.6.dylib which is almost certainly not from GCC 4.8, on Mac OS X it's probably from GCC 4.2 What is the output if you add -v to the linker options? Have you tried using the compiler on the command line, instead of via Eclipse?
