[gtk+] Add forgotten include

[Matthias Clasen <matthiasc src gnome org>]

commit 3e4780b2e6f64d677287e911e3722bd598d109b8
Author: Matthias Clasen <mclasen redhat com>
Date:   Thu Feb 17 13:17:09 2011 -0500

    Add forgotten include

 modules/other/gail/gail.h |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/modules/other/gail/gail.h b/modules/other/gail/gail.h
index 98fb255..2ae956a 100644
--- a/modules/other/gail/gail.h
+++ b/modules/other/gail/gail.h
@@ -15,6 +15,7 @@
 #include <gail/gailimage.h>
 #include <gail/gailimagecell.h>
 #include <gail/gaillabel.h>
+#include <gail/gaillinkbutton.h>
 #include <gail/gailmenu.h>
 #include <gail/gailmenushell.h>
 #include <gail/gailmenuitem.h>