diff -up net-tools-1.60/lib/ec_hw.c.ec_hw_null net-tools-1.60/lib/ec_hw.c
--- net-tools-1.60/lib/ec_hw.c.ec_hw_null	1999-11-20 22:02:53.000000000 +0100
+++ net-tools-1.60/lib/ec_hw.c	2009-09-15 16:33:27.000000000 +0200
@@ -15,7 +15,7 @@
 #include "config.h"
 
 #if HAVE_HWEC
-
+#include <stdlib.h>
 #include <net/if_arp.h>
 #include "net-support.h"