{
        struct commit_list *work = NULL;
 
-       insert_by_date(want, &work);
+       commit_list_insert_by_date(want, &work);
        while (work) {
                struct commit_list *list = work->next;
                struct commit *commit = work->item;
                for (list = commit->parents; list; list = list->next) {
                        struct commit *parent = list->item;
                        if (!(parent->object.flags & REACHABLE))
-                               insert_by_date(parent, &work);
+                               commit_list_insert_by_date(parent, &work);
                }
        }
        want->object.flags |= REACHABLE;