--- nstx_tuntap.c.orig
+++ nstx_tuntap.c
@@ -215,7 +215,7 @@
 
 struct nstxmsg *nstx_select (int timeout)
 {
-   int peerlen;
+   unsigned peerlen;
    fd_set set;
    struct timeval tv;
    static struct nstxmsg *ret = NULL;