make item compile

include/item.h

@@ -1,6 +1,17 @@
 #ifndef GUARD_ITEM_H
 #define GUARD_ITEM_H
 
+// These constants are used in gItems
+enum
+{
+    POCKET_NONE,
+    POCKET_ITEMS,
+    POCKET_POKE_BALLS,
+    POCKET_TM_HM,
+    POCKET_BERRIES,
+    POCKET_KEY_ITEMS,
+};
+
 enum
 {
     ITEMS_POCKET,