https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63622
--- Comment #11 from howarth at bromo dot med.uc.edu --- It looks like we aren't compiling some object files in libstdc++-v3/src/c++98 for gcc trunk which are are on gcc 4.9.2. In particular, we are missing... ctype.o ctype_configure_char.o ctype_members.o ios-inst.o ios.o iostream-inst.o istream-inst.o ostream-inst.o sstream-inst.o streambuf-inst.o