suppress warnings about easch <applet>_main() having

no preceding prototype

util-linux/rdate.c

@@ -42,6 +42,7 @@ static time_t askremotedate(const char *host)
 	return ntohl(nett) - RFC_868_BIAS;
 }
 
+int rdate_main(int argc, char **argv);
 int rdate_main(int argc, char **argv)
 {
 	time_t remote_time;