FreeBSD needs <netinet/in.h> for IPPROTO_IPV6 and IPV6_V6ONLY.

git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@782 d4fa192b-c00b-0410-8231-f00ffab90ce4

bin/varnishd/tcp.c

@@ -5,6 +5,8 @@
 #include <sys/types.h>
 #include <sys/socket.h>
 
+#include <netinet/in.h>
+
 #include <errno.h>
 #include <netdb.h>
 #include <stdio.h>