[gimp/wip/Jehan/classy-GIMP: 19/30] libgimpwidgets: fix a warning.

[Jehan <jehanp src gnome org>]

commit 189b0e5443f7331e0116a870dd734cd42570e752
Author: Jehan <jehan girinstud io>
Date:   Wed Aug 14 07:57:31 2019 +0200

    libgimpwidgets: fix a warning.

 libgimpwidgets/gimpdialog.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/libgimpwidgets/gimpdialog.c b/libgimpwidgets/gimpdialog.c
index 53f973cfe3..10090ff6c5 100644
--- a/libgimpwidgets/gimpdialog.c
+++ b/libgimpwidgets/gimpdialog.c
@@ -696,7 +696,7 @@ gimp_dialog_set_alternative_button_order_from_array (GimpDialog *dialog,
    * just hide the warnings for now...
    */
   G_GNUC_BEGIN_IGNORE_DEPRECATIONS;
-  gtk_dialog_set_alternative_button_order_from_array (dialog, n_buttons, order);
+  gtk_dialog_set_alternative_button_order_from_array (GTK_DIALOG (dialog), n_buttons, order);
   G_GNUC_END_IGNORE_DEPRECATIONS;
 }