add config check for B_GLARE_GHOST

src/battle_util.c

@@ -9135,7 +9135,7 @@ static u16 CalcTypeEffectivenessMultiplierInternal(u16 move, u8 moveType, u8 bat
     {
         modifier = UQ_4_12(0.0);
     }
-    else if (move == MOVE_GLARE && IS_BATTLER_OF_TYPE(battlerDef, TYPE_GHOST))
+    else if (B_GLARE_GHOST >= GEN_4 && move == MOVE_GLARE && IS_BATTLER_OF_TYPE(battlerDef, TYPE_GHOST))
     {
         modifier = UQ_4_12(1.0);
     }