diff -r 000000000000 -r 6474c204b198 widget/gtk/compat/gdk/gdkvisual.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/widget/gtk/compat/gdk/gdkvisual.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,17 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef GDKVISUAL_WRAPPER_H
+#define GDKVISUAL_WRAPPER_H
+
+#define gdk_visual_get_depth gdk_visual_get_depth_
+#include_next <gdk/gdkvisual.h>
+#undef gdk_visual_get_depth
+
+static inline gint
+gdk_visual_get_depth(GdkVisual *visual)
+{
+  return visual->depth;
+}
+#endif /* GDKVISUAL_WRAPPER_H */