--- libaitsched/src/aitsched.c	2012/05/31 21:48:01	1.9.2.3
+++ libaitsched/src/aitsched.c	2012/05/31 21:51:29	1.9.2.4
@@ -3,7 +3,7 @@
 *  by Michael Pounov <misho@openbsd-bg.org>
 *
 * $Author: misho $
-* $Id: aitsched.c,v 1.9.2.3 2012/05/31 21:48:01 misho Exp $
+* $Id: aitsched.c,v 1.9.2.4 2012/05/31 21:51:29 misho Exp $
 *
 **************************************************************************
 The ELWIX and AITNET software is distributed under the following
@@ -104,8 +104,10 @@ schedRegisterHooks(sched_root_task_t * __restrict root
 	root->root_hooks.hook_add.alarm = sched_hook_alarm;
 	root->root_hooks.hook_add.node = sched_hook_node;
 	root->root_hooks.hook_add.proc = sched_hook_proc;
-	root->root_hooks.hook_add.user = sched_hook_user;
 	root->root_hooks.hook_add.signal = sched_hook_signal;
+#ifdef EVFILT_USER
+	root->root_hooks.hook_add.user = sched_hook_user;
+#endif
 
 	root->root_hooks.hook_exec.cancel = sched_hook_cancel;
 	root->root_hooks.hook_exec.fetch = sched_hook_fetch;