Trivial fix from Bernd Leibing <bernd.leibing@kiz.uni-ulm.de>
[quagga-dev 879].
diff --git a/bgpd/bgp_network.c b/bgpd/bgp_network.c
index 1590b99..aa369bc 100644
--- a/bgpd/bgp_network.c
+++ b/bgpd/bgp_network.c
@@ -357,7 +357,7 @@
   int sock;
   int socklen;
   struct sockaddr_in sin;
-  int ret;
+  int ret, en;
 
   sock = socket (AF_INET, SOCK_STREAM, 0);
   if (sock < 0)