Add the private struct in class_init

diff --git a/gtk/gtktreestore.c b/gtk/gtktreestore.c
index d2f69aa8c77987916c6300078e98e434656af12e..fd0b3fff64b6525e8cabd9147e7c96c7c97a0a20 100644 (file)
--- a/gtk/gtktreestore.c
+++ b/gtk/gtktreestore.c
@@ -222,6 +222,8 @@ gtk_tree_store_class_init (GtkTreeStoreClass *class)
   object_class = (GObjectClass *) class;
 
   object_class->finalize = gtk_tree_store_finalize;
+
+  g_type_class_add_private (class, sizeof (GtkTreeStorePrivate));
 }
 
 static void