extern int ExitToMenuFlag;
extern int LeadOutCounter;
-extern void subMainGameLoop_Init();
-extern void subMainGameLoop_Main(byte, boolean);
-extern void subCalculateScreenScrollPos();
+void subMainGameLoop_Init(void);
+void subMainGameLoop_Main(byte, boolean);
+void subCalculateScreenScrollPos(void);
-#endif /* MAINGAMELOOP_H */
+#endif // MAINGAMELOOP_H