src/Pure/ROOT

     "Concurrent/mailbox.ML"
     "Concurrent/par_exn.ML"
     "Concurrent/par_list.ML"
     "Concurrent/par_list_sequential.ML"
     "Concurrent/random.ML"
-    "Concurrent/simple_thread.ML"
     "Concurrent/single_assignment.ML"
     "Concurrent/single_assignment_sequential.ML"
+    "Concurrent/standard_thread.ML"
     "Concurrent/synchronized.ML"
     "Concurrent/synchronized_sequential.ML"
     "Concurrent/task_queue.ML"
     "Concurrent/time_limit.ML"
     "General/alist.ML"