Include the tests and apps directories at the _end_, since order in the

cmake rules matters, and fix compile warnings now that we're building
those sources with all the regular flags.

tests/test_parse_int64.c

@@ -31,7 +31,7 @@ void checkit_uint(const char *buf)
  * This always exits with a 0 exit value.  The output should be compared
  * against previously saved expected output.
  */
-int main()
+int main(int argc, char **argv)
 {
 	char buf[100];