extern bool crusade(void);
extern bool turn_undead(void);
extern bool destroy_area(POSITION y1, POSITION x1, POSITION r, bool in_generate);
-extern bool earthquake_aux(POSITION cy, POSITION cx, POSITION r, MONSTER_IDX m_idx);
-extern bool earthquake(POSITION cy, POSITION cx, POSITION r);
+extern bool earthquake(POSITION cy, POSITION cx, POSITION r, MONSTER_IDX m_idx);
extern void lite_room(POSITION y1, POSITION x1);
extern bool starlight(bool magic);
extern void unlite_room(POSITION y1, POSITION x1);