+#if GTK_CHECK_VERSION(2,12,0)
+ // gdk_screen_get_rgba_colormap was added in 2.8, but this code is for
+ // compositing which requires 2.12
+ else if (gtk_check_version(2,12,0) == NULL &&
+ m_cmap == gdk_screen_get_rgba_colormap(gdk_colormap_get_screen(m_cmap)))