* include/stdlib.h: Use libc_hidden_proto for wctomb.

* include/stdlib.h: Use libc_hidden_proto for wctomb.

	* stdlib/wctomb.c: Add libc_hidden_def.

	* include/netdb.h: Use libc_hidden_proto for innetgr, rcmd_af,
	rexec_af, rresvport_af, ruserok_af, iruserok_af, ruserpass, hstrerror.
	* resolv/herror.c: Likewise.
	* inet/rcmd.c: Add libc_hidden_def.
	* inet/ruserpass.c: Likewise.
	* inet/getnetgrent_r.c: Likewise.

	* include/rpc/auth.h: Use libc_hidden_proto for getnetname,
	netname2user, host2netname, user2netname.
	* sunrpc/netname.c: Add libc_hidden_def.

	* include/rpc/svc.h: Use libc_hidden_proto for svc_register,
	svc_unregister, remove *_internal decls.  Use libc_hidden_proto
	for svcerr_auth, svcerr_noprog, svcerr_progvers.
	* sunrpc/svc.c (svc_register, svc_unregister): Change INTDEF to
	libc_hidden_def.
	(svcerr_auth, svcerr_noprog, svcerr_progvers): Add libc_hidden_def.
	* sunrpc/svc_simple.c (registerrpc): Nix INTUSE for svc_register.