Index: /trunk/source/lisp-kernel/thread_manager.c
===================================================================
--- /trunk/source/lisp-kernel/thread_manager.c	(revision 13433)
+++ /trunk/source/lisp-kernel/thread_manager.c	(revision 13434)
@@ -1895,5 +1895,5 @@
   UNLOCK(lisp_global(TCR_AREA_LOCK),current);
   pthread_attr_destroy(&attr);
-  return (returned_thread != NULL);
+  return (returned_thread != (pthread_t)0);
 }
 #endif