From 23cc3c0f90a0d7e007839b32476eb736d68abbc8 Mon Sep 17 00:00:00 2001
From: Wu Jian Gang <wujiangang@espressif.com>
Date: Mon, 29 Aug 2016 15:35:44 +0800
Subject: [PATCH] components/lwip: use newlib errno

---
 components/lwip/include/lwip/port/arch/cc.h | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/components/lwip/include/lwip/port/arch/cc.h b/components/lwip/include/lwip/port/arch/cc.h
index 8e98502ccf..6fc1da1843 100644
--- a/components/lwip/include/lwip/port/arch/cc.h
+++ b/components/lwip/include/lwip/port/arch/cc.h
@@ -35,6 +35,7 @@
 #define __ARCH_CC_H__
 
 #include <stdint.h>
+#include <errno.h>
 
 #include "arch/sys_arch.h"
 
@@ -72,6 +73,4 @@ typedef int sys_prot_t;
 #define LWIP_NOASSERT
 //#define LWIP_ERROR
 
-#define LWIP_PROVIDE_ERRNO
-
 #endif /* __ARCH_CC_H__ */
-- 
2.40.0