-unsigned char meta_keys(int key, struct World * world, struct WinMeta * win_meta, struct Win * win_keys,
- struct Win * win_map, struct Win * win_info, struct Win * win_log) {
+extern unsigned char meta_keys(int key, struct World * world, struct WinMeta * win_meta,
+ struct Win * win_keys, struct Win * win_map, struct Win * win_info,
+ struct Win * win_log) {