From 91706a08e16d52ddb74db2da8b17a29667e2ddbf Mon Sep 17 00:00:00 2001
From: jani <jani>
Date: Fri, 14 Nov 2003 13:39:05 +0000
Subject: [PATCH] make loopif optional

---
 src/include/lwip/opt.h | 6 ++++--
 src/netif/loopif.c     | 6 +++++-
 2 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/src/include/lwip/opt.h b/src/include/lwip/opt.h
index 237bde45..3c887838 100644
--- a/src/include/lwip/opt.h
+++ b/src/include/lwip/opt.h
@@ -299,8 +299,10 @@ a lot of data that needs to be copied, this should be set high. */
 #define TCP_SNDLOWAT                    TCP_SND_BUF/2
 #endif
 
-
-
+/* Support loop interface (127.0.0.1) */
+#ifndef LWIP_HAVE_LOOPIF
+#define LWIP_HAVE_LOOPIF		1
+#endif
 
 #ifndef LWIP_EVENT_API
 #define LWIP_EVENT_API                  0
diff --git a/src/netif/loopif.c b/src/netif/loopif.c
index 1a8e2e28..9e7c03a0 100644
--- a/src/netif/loopif.c
+++ b/src/netif/loopif.c
@@ -29,9 +29,12 @@
  * Author: Adam Dunkels <adam@sics.se>
  *
  */
-#include "lwip/mem.h"
 #include "lwip/opt.h"
+
+#if LWIP_HAVE_LOOPIF
+
 #include "netif/loopif.h"
+#include "lwip/mem.h"
 
 #if defined(LWIP_DEBUG) && defined(LWIP_TCPDUMP)
 #include "netif/tcpdump.h"
@@ -106,6 +109,7 @@ loopif_init(struct netif *netif)
   return ERR_OK;
 }
 
+#endif /* LWIP_HAVE_LOOPIF */