libstdc++.a with current CVS version

Yes, this is PR480:
http://llvm.cs.uiuc.edu/bugs/show_bug.cgi?id=480

if you remove the explicit instantiations of __Atomicity_lock from the beginning of libstdc++-v3/config/cpu/i386/atomicity.h (or whichever cpu you're using), it should work around this problem.

-Chris