[vinagre] Add <sys/socket.h> to vinagre-vnc-tunnel.c

[Halton Huo <haltonhuo src gnome org>]

commit 75f148788e1cc3bd29fa86e66bc51fd83d5a5b36
Author: Halton Huo <halton huo sun com>
Date:   Tue Jan 26 11:54:53 2010 +0800

    Add <sys/socket.h> to vinagre-vnc-tunnel.c
    
    Fixes https://bugzilla.gnome.org/show_bug.cgi?id=608122

 plugins/vnc/vinagre-vnc-tunnel.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/plugins/vnc/vinagre-vnc-tunnel.c b/plugins/vnc/vinagre-vnc-tunnel.c
index 2a5fe9b..c0987aa 100644
--- a/plugins/vnc/vinagre-vnc-tunnel.c
+++ b/plugins/vnc/vinagre-vnc-tunnel.c
@@ -21,6 +21,7 @@
 
 #include <config.h>
 #include <netinet/in.h>
+#include <sys/socket.h>
 #include <unistd.h>
 #include <glib/gi18n.h>