From ed83c1579062245287f4316c3c14b416cd7ff11a Mon Sep 17 00:00:00 2001
From: Milanka Ringwald <mila@ringwald.ch>
Date: Tue, 13 Nov 2018 09:53:46 +0100
Subject: [PATCH] fix esp32 port compiling error

---
 src/ble/att_db_util.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/ble/att_db_util.c b/src/ble/att_db_util.c
index 56beabf6d..ab51c2598 100644
--- a/src/ble/att_db_util.c
+++ b/src/ble/att_db_util.c
@@ -38,6 +38,7 @@
 #define __BTSTACK_FILE__ "att_db_util.c"
 
 #include <string.h>
+#include <stdlib.h>
 
 #include "ble/att_db_util.h"
 #include "ble/att_db.h"