From 88020a840d641b5474ea9d1fde51ba23a4590ce7 Mon Sep 17 00:00:00 2001
From: Jeremy Lakeman <jeremy.lakeman@flinders.edu.au>
Date: Mon, 11 Jan 2016 14:52:29 +1030
Subject: [PATCH] Add size cast to avoid compilation warning for some linux
 compilers

---
 overlay_interface.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/overlay_interface.c b/overlay_interface.c
index 1e467830..1455c05f 100644
--- a/overlay_interface.c
+++ b/overlay_interface.c
@@ -1178,7 +1178,7 @@ void netlink_poll(struct sched_ent *alarm)
   DEBUGF(overlayinterfaces, "recv(%d) len %u", alarm->poll.fd, len);
     
   struct nlmsghdr *nlh = (struct nlmsghdr *)buff;
-  for (nlh = (struct nlmsghdr *)buff; (NLMSG_OK (nlh, len)) && (nlh->nlmsg_type != NLMSG_DONE); nlh = NLMSG_NEXT(nlh, len)){
+  for (nlh = (struct nlmsghdr *)buff; (NLMSG_OK (nlh, (size_t)len)) && (nlh->nlmsg_type != NLMSG_DONE); nlh = NLMSG_NEXT(nlh, len)){
     
     switch(nlh->nlmsg_type){
       case RTM_NEWADDR: