* libsupc++/Makefile.am, libsupc++/cxxabi.h, libsupc++/del_op.cc,
	libsupc++/del_opnt.cc, libsupc++/del_opv.cc, libsupc++/del_opvnt.cc,
	libsupc++/eh_alloc.cc, libsupc++/eh_aux_runtime.cc,
	libsupc++/eh_catch.cc, libsupc++/eh_exception.cc,
	libsupc++/eh_globals.cc, libsupc++/eh_personality.cc,
	libsupc++/eh_term_handler.cc, libsupc++/eh_terminate.cc,
	libsupc++/eh_throw.cc, libsupc++/eh_type.cc,
	libsupc++/eh_unex_handler.cc, libsupc++/exception,
	libsupc++/new, libsupc++/new_handler.cc, libsupc++/new_op.cc,
	libsupc++/new_opnt.cc, libsupc++/new_opv.cc, libsupc++/new_opvnt.cc,
	libsupc++/pure.cc, libsupc++/tinfo.cc, libsupc++/tinfo2.cc,
	libsupc++/typeinfo, libsupc++/unwind-cxx.h, libsupc++/vec.cc:
	Replace "GNU CC" with "GCC".


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@67155 138bc75d-0d04-0410-961f-82ee72b054a4