[gtk] testsuite: Disable some tests for older glib

[Benjamin Otte <otte src gnome org>]

commit 545c5f18b27bea1fd5ed5a4536a6c261f5fc1748
Author: Benjamin Otte <otte redhat com>
Date:   Mon Sep 17 04:29:40 2018 +0200

    testsuite: Disable some tests for older glib

 testsuite/gtk/sortlistmodel.c | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/testsuite/gtk/sortlistmodel.c b/testsuite/gtk/sortlistmodel.c
index d2cb9fe7c3..31a6711f04 100644
--- a/testsuite/gtk/sortlistmodel.c
+++ b/testsuite/gtk/sortlistmodel.c
@@ -394,8 +394,10 @@ main (int argc, char *argv[])
   g_test_add_func ("/sortlistmodel/create", test_create);
   g_test_add_func ("/sortlistmodel/set-model", test_set_model);
   g_test_add_func ("/sortlistmodel/set-sort-func", test_set_sort_func);
+#if GLIB_CHECK_VERSION (2, 58, 0) /* g_list_store_splice() is broken before 2.58 */
   g_test_add_func ("/sortlistmodel/add_items", test_add_items);
   g_test_add_func ("/sortlistmodel/remove_items", test_remove_items);
+#endif
 
   return g_test_run ();
 }