From 5af47adf6b02a4b260ed717944c40d6ed120577a Mon Sep 17 00:00:00 2001
From: Howard Chu <hyc@symas.com>
Date: Mon, 3 Dec 2012 13:57:28 -0800
Subject: [PATCH] Fix mdb_midl_shrink

---
 libraries/liblmdb/midl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libraries/liblmdb/midl.c b/libraries/liblmdb/midl.c
index 8de61e3..7289f40 100644
--- a/libraries/liblmdb/midl.c
+++ b/libraries/liblmdb/midl.c
@@ -132,7 +132,7 @@ void mdb_midl_free(MDB_IDL ids)
 int mdb_midl_shrink( MDB_IDL *idp )
 {
 	MDB_IDL ids = *idp;
-	if (ids[-1] > MDB_IDL_UM_MAX) {
+	if (*(--ids) > MDB_IDL_UM_MAX) {
 		ids = realloc(ids, (MDB_IDL_UM_MAX+1) * sizeof(MDB_ID));
 		*ids++ = MDB_IDL_UM_MAX;
 		*idp = ids;