-extern void setLevelInfoToDefaults_MM();
-extern void copyInternalEngineVars_MM();
-extern boolean LoadNativeLevel_MM(char *, boolean);
-extern void SaveNativeLevel_MM(char *);
+void setLevelInfoToDefaults_MM(void);
+void copyInternalEngineVars_MM(void);
+boolean LoadNativeLevel_MM(char *, boolean);
+void SaveNativeLevel_MM(char *);