--- libaitsched/inc/aitsched.h	2012/08/02 12:19:29	1.11.2.8
+++ libaitsched/inc/aitsched.h	2012/08/02 12:32:07	1.11.2.9
@@ -3,7 +3,7 @@
 *  by Michael Pounov <misho@openbsd-bg.org>
 *
 * $Author: misho $
-* $Id: aitsched.h,v 1.11.2.8 2012/08/02 12:19:29 misho Exp $
+* $Id: aitsched.h,v 1.11.2.9 2012/08/02 12:32:07 misho Exp $
 *
 **************************************************************************
 The ELWIX and AITNET software is distributed under the following
@@ -53,7 +53,7 @@ SUCH DAMAGE.
 #include <sys/uio.h>
 #include <stdint.h>
 #include <pthread.h>
-#ifdef EVFILT_AIO
+#if defined(EVFILT_AIO) && defined(SIGEV_KEVENT)
 #include <aio.h>
 #endif
 
@@ -406,7 +406,7 @@ sched_task_t *schedSignal(sched_root_task_t * __restri
 #define schedSignalSelf(x)	schedSignal(TASK_ROOT((x)), TASK_FUNC((x)), TASK_ARG((x)), \
 		TASK_VAL((x)), TASK_DATA((x)), TASK_DATLEN((x)))
 
-#ifdef EVFILT_AIO
+#if defined(EVFILT_AIO) && defined(SIGEV_KEVENT)
 /*
  * schedAIO() - Add AIO task to scheduler queue
  *