[vinagre] Bump required GTK+ version

[Matthias Clasen <matthiasc src gnome org>]

commit 576abc62258b9a0a6cc5f1295f847cab0d60d175
Author: Matthias Clasen <mclasen redhat com>
Date:   Wed Feb 9 07:36:27 2011 -0500

    Bump required GTK+ version
    
    Require 2.99.3, for the gtkx.h header.

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 69924c9..bdb1a76 100644
--- a/configure.ac
+++ b/configure.ac
@@ -72,7 +72,7 @@ GNOME_DOC_INIT
 #*******************************************************************************
 
 GLIB_REQUIRED=2.25.11
-GTK_REQUIRED=2.90.4
+GTK_REQUIRED=2.99.3
 GCONF_REQUIRED=2.16.0
 GTHREAD_REQUIRED=2.0.0
 GTK_VNC_REQUIRED=0.4.1