./:

	* c.opt (Wmissing-declarations): Add C++ and ObjC++.
	* doc/invoke.texi (Warning Options): -Wmissing-declarations now
	works for C++.
cp/:
	* decl.c (start_preparsed_function): Add support for
	-Wmissing-declarations.
testsuite:
	* g++.dg/warn/Wmissing-declarations-1.C: New test.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@120012 138bc75d-0d04-0410-961f-82ee72b054a4