https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63781
--- Comment #2 from howarth at bromo dot med.uc.edu --- The missing linkage on libstdc++ would be solved by making sure that the /sw/src/fink.build/gcc50-5.0.0-1000/darwin_objdir/./gcc/xg++ compiler is used to link libitm rather than the current /sw/src/fink.build/gcc50-5.0.0-1000/darwin_objdir/./gcc/xgcc.