Makefile.mingw corrections and made the code pass much stricter checks (now mandated by Makefile.mignw) to ensure GCC 14 readiness.

src/win/win_toolbar.c

@@ -28,7 +28,7 @@ enum image_index {
 };
 
 void
-ToolBarLoadIcons()
+ToolBarLoadIcons(void)
 {
     if (!hwndToolbar)
         return;