Fix printf warnings for MinGW

Author: ChickChicky

nob.c

@@ -9,6 +9,9 @@ int main(int argc, char **argv)
     Cmd cmd = {0};
 
     cmd_append(&cmd, "cc", "-Wall", "-Wextra", "-Wswitch-enum", "-ggdb", "-o", "randomart", "randomart.c", "-lm");
+#ifdef __MINGW32__
+    cmd_append(&cmd, "-D__USE_MINGW_ANSI_STDIO");
+#endif
     if (!cmd_run_sync_and_reset(&cmd)) return 1;
 
     cmd_append(&cmd, "./randomart");