*Fix build.

--HG--
branch : trunk

src/game/Unit.h

@@ -857,6 +857,7 @@ class TRINITY_DLL_SPEC Unit : public WorldObject
 
         virtual ~Unit ( );
 
+        void AddToWorld();
         void RemoveFromWorld();
 
         void CleanupsBeforeDelete();                        // used in ~Creature/~Player (or before mass creature delete to remove cross-references to already deleted units)