From 6afe1f3597e8183951c2b142c72caf4c7856a38b Mon Sep 17 00:00:00 2001
From: jgrubb <jgrubb>
Date: Mon, 10 Sep 2007 18:12:13 +0000
Subject: [PATCH] DHCP_DOES_ARP_CHECK is set to 1 by default -- the
 compile-time checks fail if DHCP is off... So this patch sets the default to
 be 1 only if both DHCP and ARP are set.

---
 src/include/lwip/opt.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/include/lwip/opt.h b/src/include/lwip/opt.h
index a295e4c5..39d79059 100644
--- a/src/include/lwip/opt.h
+++ b/src/include/lwip/opt.h
@@ -453,7 +453,7 @@
  * DHCP_DOES_ARP_CHECK==1: Do an ARP check on the offered address.
  */
 #ifndef DHCP_DOES_ARP_CHECK
-#define DHCP_DOES_ARP_CHECK             1
+#define DHCP_DOES_ARP_CHECK             ((LWIP_DHCP) && (LWIP_ARP))
 #endif
 
 /*