[gnome-control-center/wip/oholy/warnings-fixes: 2/2] user-accounts: Add casts to suppress gcc warnings

[Robert Ancell <rancell src gnome org>]

commit 70d8427b04448aee087020f2adcad6f49e443d77
Author: Ondrej Holy <oholy redhat com>
Date:   Wed Aug 15 15:11:09 2018 +0200

    user-accounts: Add casts to suppress gcc warnings
    
    "warning: passing argument 1 of ‘gtk_widget_destroy’ from incompatible
    pointer type" is printed from g_clear_pointer, because it is more
    type-safe now. See https://gitlab.gnome.org/GNOME/glib/issues/1425 for
    more info. Add the necessary casts to suppress the warnings.

 panels/user-accounts/um-account-dialog.c | 2 +-
 panels/user-accounts/um-user-panel.c     | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/panels/user-accounts/um-account-dialog.c b/panels/user-accounts/um-account-dialog.c
index 12a14da6d..2b68d74f9 100644
--- a/panels/user-accounts/um-account-dialog.c
+++ b/panels/user-accounts/um-account-dialog.c
@@ -1549,7 +1549,7 @@ um_account_dialog_dispose (GObject *obj)
                 self->enterprise_domain_timeout_id = 0;
         }
 
-        g_clear_pointer (&self->join_dialog, gtk_widget_destroy);
+        g_clear_pointer ((GtkWidget **)&self->join_dialog, gtk_widget_destroy);
 
         G_OBJECT_CLASS (um_account_dialog_parent_class)->dispose (obj);
 }
diff --git a/panels/user-accounts/um-user-panel.c b/panels/user-accounts/um-user-panel.c
index 6ccc9e199..eaa77bdb6 100644
--- a/panels/user-accounts/um-user-panel.c
+++ b/panels/user-accounts/um-user-panel.c
@@ -1485,7 +1485,7 @@ cc_user_panel_dispose (GObject *object)
                 gtk_dialog_response (GTK_DIALOG (self->account_dialog), GTK_RESPONSE_DELETE_EVENT);
                 self->account_dialog = NULL;
         }
-        g_clear_pointer (&self->language_chooser, gtk_widget_destroy);
+        g_clear_pointer ((GtkWidget **)&self->language_chooser, gtk_widget_destroy);
         g_clear_object (&self->permission);
         G_OBJECT_CLASS (cc_user_panel_parent_class)->dispose (object);
 }