dialog = gtk_dialog_new_with_buttons (_("Converting metadata"),
NULL,
+#if GTK_CHECK_VERSION (2, 90, 8)
+ 0,
+#else
GTK_DIALOG_NO_SEPARATOR,
+#endif
GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
NULL);
action_area = gtk_dialog_get_action_area (GTK_DIALOG (dialog));