[clutter-gtk/wip/mir] initialization: add support for mir

[Marco Trevisan <marcotrevi src gnome org>]

commit bfadca861d5299b529373f0786a0a1fcef95c90d
Author: Marco Trevisan (Treviño) <mail 3v1n0 net>
Date:   Fri Nov 21 04:26:26 2014 +0100

    initialization: add support for mir

 clutter-gtk/gtk-clutter-util.c |   12 ++++++++++++
 1 files changed, 12 insertions(+), 0 deletions(-)
---
diff --git a/clutter-gtk/gtk-clutter-util.c b/clutter-gtk/gtk-clutter-util.c
index f66f8a9..23791d7 100644
--- a/clutter-gtk/gtk-clutter-util.c
+++ b/clutter-gtk/gtk-clutter-util.c
@@ -39,6 +39,10 @@
 #include <gdk/gdkwayland.h>
 #endif
 
+#if defined(GDK_WINDOWING_MIR)
+#include <gdk/gdkmir.h>
+#endif
+
 /**
  * SECTION:gtk-clutter-util
  * @Title: Utility Functions
@@ -110,6 +114,14 @@ gtk_clutter_init_internal (void)
     }
   else
 #endif
+#if defined(GDK_WINDOWING_MIR) && defined(CLUTTER_WINDOWING_MIR)
+  if (clutter_check_windowing_backend (CLUTTER_WINDOWING_MIR) &&
+      GDK_IS_MIR_DISPLAY (display))
+    {
+      clutter_mir_set_connection (gdk_mir_display_get_mir_connection (display));
+    }
+  else
+#endif
     g_error ("*** Unsupported backend.");
 
   /* We disable clutter accessibility support in order to not