[gtk/wip/chergert/gdk-macos-for-master: 3/4] lpr: fix cast warning

[Christian Hergert <chergert src gnome org>]

commit ee47ddf5fdd9fb77a8a721ebe12d352d85c3bc9e
Author: Christian Hergert <chergert redhat com>
Date:   Wed Nov 18 20:06:38 2020 -0800

    lpr: fix cast warning

 modules/printbackends/gtkprintbackendlpr.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/modules/printbackends/gtkprintbackendlpr.c b/modules/printbackends/gtkprintbackendlpr.c
index 2d50971bfc..17ed4fbf3f 100644
--- a/modules/printbackends/gtkprintbackendlpr.c
+++ b/modules/printbackends/gtkprintbackendlpr.c
@@ -405,7 +405,7 @@ lpr_printer_get_options (GtkPrinter           *printer,
 
   option = gtk_printer_option_new ("gtk-n-up", _("Pages Per Sheet"), GTK_PRINTER_OPTION_TYPE_PICKONE);
   gtk_printer_option_choices_from_array (option, G_N_ELEMENTS (n_up),
-                                        n_up, n_up);
+                                         (char **)n_up, (char **)n_up);
   gtk_printer_option_set (option, "1");
   gtk_printer_option_set_add (set, option);
   g_object_unref (option);