From 23a7bc29395bebaac9f45b722dc9fd0715c668af Mon Sep 17 00:00:00 2001
From: David Gauchard <gauchard@laas.fr>
Date: Fri, 12 Jan 2018 14:34:53 +0100
Subject: [PATCH] restore zalloc() (lost with OOM debug commit, used by
 lwip/lwip2)

---
 tools/sdk/include/mem.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/sdk/include/mem.h b/tools/sdk/include/mem.h
index 9fe13a8bf..c9231af8e 100644
--- a/tools/sdk/include/mem.h
+++ b/tools/sdk/include/mem.h
@@ -43,7 +43,8 @@ bool ICACHE_FLASH_ATTR check_memleak_debug_enable(void)
 #define os_malloc malloc
 #define os_calloc calloc
 #define os_realloc realloc
-#define os_zalloc zalloc
+#define os_zalloc(s) calloc(1,s)
+#define zalloc(s) calloc(1,s)
 
 #ifndef MEMLEAK_DEBUG
 #define MEMLEAK_DEBUG_ENABLE	0