--- libaitsched/src/aitsched.c	2013/08/15 17:58:31	1.18.6.1
+++ libaitsched/src/aitsched.c	2013/08/15 19:10:48	1.19
@@ -3,7 +3,7 @@
 *  by Michael Pounov <misho@openbsd-bg.org>
 *
 * $Author: misho $
-* $Id: aitsched.c,v 1.18.6.1 2013/08/15 17:58:31 misho Exp $
+* $Id: aitsched.c,v 1.19 2013/08/15 19:10:48 misho Exp $
 *
 **************************************************************************
 The ELWIX and AITNET software is distributed under the following
@@ -102,7 +102,9 @@ schedRegisterHooks(sched_root_task_t * __restrict root
 	root->root_hooks.hook_add.read = sched_hook_read;
 	root->root_hooks.hook_add.write = sched_hook_write;
 	root->root_hooks.hook_add.alarm = sched_hook_alarm;
+#if defined(HAVE_TIMER_CREATE) && defined(HAVE_TIMER_SETTIME)
 	root->root_hooks.hook_add.rtc = sched_hook_rtc;
+#endif
 	root->root_hooks.hook_add.node = sched_hook_node;
 	root->root_hooks.hook_add.proc = sched_hook_proc;
 	root->root_hooks.hook_add.signal = sched_hook_signal;