*** sys/systm.h.orig	Wed Jun 28 07:13:59 1995
--- sys/systm.h	Tue Jul 18 02:02:29 1995
***************
*** 153,158 ****
--- 153,164 ----
  int	hzto __P((struct timeval *tv));
  void	timeout __P((void (*func)(void *), void *arg, int ticks));
  void	untimeout __P((void (*func)(void *), void *arg));
+ #ifdef CALLWHEEL
+ #include <sys/callout.h>
+ struct callout_handle
+ 	setcallout __P((void (*ftn)(void *), void *arg, int ticks));
+ void	unsetcallout __P((struct callout_handle handle));
+ #endif /* CALLWHEEL */
  void	realitexpire __P((void *));
  
  struct clockframe;