Turn off resizable flag by default, you can always pass the --resize command line option if you need it.

test/testsprite2.c

@@ -248,8 +248,6 @@ main(int argc, char *argv[])
         return 1;
     }
 
-    state->window_flags |= SDL_WINDOW_RESIZABLE;
-
     for (i = 1; i < argc;) {
         int consumed;