+/* Work-around for https://bugzilla.gnome.org/show_bug.cgi?id=627724 */
+
+static GPtrArray *ensured_classes = NULL;
+
+static void
+ensure_type (GType gtype)
+{
+ g_ptr_array_add (ensured_classes, g_type_class_ref (gtype));
+}
+
+static void
+released_required_types (void)
+{
+ g_ptr_array_foreach (ensured_classes, (GFunc) g_type_class_unref, NULL);
+ g_ptr_array_unref (ensured_classes);
+ ensured_classes = NULL;
+}
+
+static void
+ensure_required_types (void)
+{
+ g_assert (ensured_classes == NULL);
+ ensured_classes = g_ptr_array_new ();
+ ensure_type (G_TYPE_SIMPLE_ASYNC_RESULT);
+ ensure_type (G_TYPE_MEMORY_INPUT_STREAM);
+}
+/* ---------------------------------------------------------------------------------------------------- */
+