From 3e42042b860857e3cd909bbfe8e032d12fab0633 Mon Sep 17 00:00:00 2001
From: Ivan Grokhotkov <igrokhotkov@gmail.com>
Date: Thu, 4 Feb 2016 20:02:47 +0300
Subject: [PATCH] Fix warning in libc_replacements.c

---
 cores/esp8266/libc_replacements.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/cores/esp8266/libc_replacements.c b/cores/esp8266/libc_replacements.c
index 104e4564a..964e84521 100644
--- a/cores/esp8266/libc_replacements.c
+++ b/cores/esp8266/libc_replacements.c
@@ -26,6 +26,7 @@
 #include <stddef.h>
 #include <stdarg.h>
 #include <stdio.h>
+#include <stdlib.h>
 #include <math.h>
 #include <limits.h>
 #include <errno.h>