From 91cc6ff4f97f5910738cc2777da6e164bc616479 Mon Sep 17 00:00:00 2001
From: Baruch Even <baruch@ev-en.org>
Date: Thu, 24 Mar 2016 09:47:02 +0200
Subject: [PATCH] Avoid multiple instances of INADDR_NONE

By moving the definition from the header to the source we now only use
one instance for the entire app with a little saving in space.
---
 cores/esp8266/IPAddress.cpp | 1 +
 cores/esp8266/IPAddress.h   | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/cores/esp8266/IPAddress.cpp b/cores/esp8266/IPAddress.cpp
index f416c7c64..93a081eb2 100644
--- a/cores/esp8266/IPAddress.cpp
+++ b/cores/esp8266/IPAddress.cpp
@@ -112,3 +112,4 @@ String IPAddress::toString()
     return String(szRet);
 }
 
+const IPAddress INADDR_NONE(0, 0, 0, 0);
diff --git a/cores/esp8266/IPAddress.h b/cores/esp8266/IPAddress.h
index 9248084b2..9e7dfe5e2 100644
--- a/cores/esp8266/IPAddress.h
+++ b/cores/esp8266/IPAddress.h
@@ -87,6 +87,6 @@ class IPAddress: public Printable {
         friend class DNSClient;
 };
 
-const IPAddress INADDR_NONE(0, 0, 0, 0);
+extern const IPAddress INADDR_NONE;
 
 #endif