[gtk+] gtk-demo: Avoid a compiler warning

[Matthias Clasen <matthiasc src gnome org>]

commit 71fdf845a74e8065fd7d4214ca8baa54261080c0
Author: Matthias Clasen <mclasen redhat com>
Date:   Sat Apr 12 22:13:40 2014 -0700

    gtk-demo: Avoid a compiler warning

 demos/gtk-demo/links.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/demos/gtk-demo/links.c b/demos/gtk-demo/links.c
index f0c6d80..fa3075d 100644
--- a/demos/gtk-demo/links.c
+++ b/demos/gtk-demo/links.c
@@ -33,7 +33,7 @@ activate_link (GtkWidget   *label,
                  "The term <i>keynav</i> is a shorthand for "
                  "keyboard navigation and refers to the process of using "
                  "a program (exclusively) via keyboard input.");
-      gtk_window_set_modal (dialog, TRUE);
+      gtk_window_set_modal (GTK_WINDOW (dialog), TRUE);
 
       gtk_window_present (GTK_WINDOW (dialog));
       g_signal_connect (dialog, "response", G_CALLBACK (response_cb), NULL);