Bugzilla – Attachment #346335: The patch that fixes the problem for bug #585137
*/
toplevel = gtk_widget_get_toplevel (widget);
if (GTK_WIDGET_TOPLEVEL (toplevel) && !GTK_WIDGET_REALIZED (toplevel))
if (gtk_widget_is_toplevel (toplevel) && !GTK_WIDGET_REALIZED (toplevel))
{
GTK_GL_NOTE (MISC,
g_message (" - Install colormap to the top-level window."));