band-aid: deprecated-declarations related to gtk

Don't hesitate to revert this one but only if there's a patch to fix it.

Change-Id: Ib15352e1a94d0542120f6710acfe19887494ed51
Reviewed-on: https://gerrit.libreoffice.org/61142
Tested-by: Jenkins
Reviewed-by: Julien Nabet <serval2412@yahoo.fr>

libreofficekit/qa/gtktiledviewer/gtv-application-window.cxx

@@ -135,9 +135,17 @@ static void initWindow(GtvApplicationWindow* window)
 {
     GtvApplicationWindowPrivate* priv = getPrivate(window);
 
+#ifdef __GNUC__
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
+#endif
     GList *focusChain = nullptr;
     focusChain = g_list_append( focusChain, window->lokdocview );
+
     gtk_container_set_focus_chain ( GTK_CONTAINER (priv->container), focusChain );
+#ifdef __GNUC__
+#pragma GCC diagnostic pop
+#endif
 
     // TODO: Implement progressbar in statusbar
     LibreOfficeKitDocument* pDocument = lok_doc_view_get_document(LOK_DOC_VIEW(window->lokdocview));

vcl/unx/gtk/gloactiongroup.cxx

@@ -327,8 +327,14 @@ g_lo_action_group_class_init (GLOActionGroupClass *klass)
     GObjectClass *object_class = G_OBJECT_CLASS (klass);
 
     object_class->finalize = g_lo_action_group_finalize;
-
+#ifdef __GNUC__
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
+#endif
     g_type_class_add_private (klass, sizeof (GLOActionGroupPrivate));
+#ifdef __GNUC__
+#pragma GCC diagnostic pop
+#endif
 }
 
 static void