[gimp] app: fix a few compilation warnings

[Ell <ell src gnome org>]

commit aab9f0ee10f624007284face201091ba78290689
Author: Ell <ell_se yahoo com>
Date:   Wed Sep 4 19:03:47 2019 +0300

    app: fix a few compilation warnings

 app/actions/window-commands.c  | 2 ++
 app/widgets/gimptoggleaction.c | 2 +-
 2 files changed, 3 insertions(+), 1 deletion(-)
---
diff --git a/app/actions/window-commands.c b/app/actions/window-commands.c
index 5ed1c0f0c0..fc02293173 100644
--- a/app/actions/window-commands.c
+++ b/app/actions/window-commands.c
@@ -139,7 +139,9 @@ window_move_to_screen_cmd_callback (GimpAction *action,
                                     gpointer    data)
 {
   GtkWidget *widget;
+#if 0
   GdkScreen *screen;
+#endif
   return_if_no_widget (widget, data);
 
 #if 0
diff --git a/app/widgets/gimptoggleaction.c b/app/widgets/gimptoggleaction.c
index a196ad8cca..b1112e500b 100644
--- a/app/widgets/gimptoggleaction.c
+++ b/app/widgets/gimptoggleaction.c
@@ -74,7 +74,7 @@ gimp_toggle_action_connect_proxy (GtkAction *action,
 static void
 gimp_toggle_action_toggled (GtkToggleAction *action)
 {
-  gboolean value = gimp_toggle_action_get_active (action);
+  gboolean value = gimp_toggle_action_get_active (GIMP_TOGGLE_ACTION (action));
 
   gimp_action_emit_change_state (GIMP_ACTION (action),
                                  g_variant_new_boolean (value));