When linking a C++ program with 4.2.1 the linker complains that __cxa_guard_* are undefined behavior.  I try forcing it 
to link with libstdc++.  That solved the link issue ( but I don't think that's right)

First libstdc++.so.6 cannot be found at run time because they are no link to it in /usr/lib.

Once I copied the libstdc++.so.x to /usr/lib the program would crash before main().

For now I got around the problem by using -fno-threadsafe-statics.  Program doesn't use thread, for now.