[clutter-gtk/multi-backend] embed: Fix compilation warning

[Emmanuele Bassi <ebassi src gnome org>]

commit 5c5d359bec8aad82605d37f48ad6604a1a5e6f12
Author: Emmanuele Bassi <ebassi linux intel com>
Date:   Fri Sep 30 15:36:14 2011 +0100

    embed: Fix compilation warning

 clutter-gtk/gtk-clutter-embed.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/clutter-gtk/gtk-clutter-embed.c b/clutter-gtk/gtk-clutter-embed.c
index b470df4..7917f37 100644
--- a/clutter-gtk/gtk-clutter-embed.c
+++ b/clutter-gtk/gtk-clutter-embed.c
@@ -217,6 +217,7 @@ gtk_clutter_filter_func (GdkXEvent *native_event,
     }
   else
 #endif
+    g_critical ("Unsuppored Clutter backend");
 
   /* we don't care if Clutter handled the event: we want GDK to continue
    * the event processing as usual