*** widget.c.orig	Mon Jul 15 00:49:09 1996
--- widget.c	Thu Jul 30 10:32:50 1998
***************
*** 973,978 ****
--- 973,982 ----
  	delw = XmInternAtom(display, "WM_DELETE_WINDOW", False);
  }
  
+ static XtSignalId sigid;
+ void deliverSIGIO() {
+ 	XtNoticeSignal(sigid);
+ }
  
  /*
   * register_callbacks
***************
*** 985,991 ****
   *	Nothing
   */
  void
! register_callbacks(widgets_t *m)
  {
  	int	i;
  
--- 989,995 ----
   *	Nothing
   */
  void
! register_callbacks(widgets_t *m, XtAppContext app)
  {
  	int	i;
  
***************
*** 1126,1131 ****
--- 1130,1144 ----
  		XmNfocusCallback,
  		(XtCallbackProc) mx_focuschg, (XtPointer) m->form
  	);
+ 
+ #if defined(__NetBSD__) || defined(__OpenBSD__)
+ 	/*
+ 	 * Mixer SIGIO change callback
+ 	 */
+ 	sigid = XtAppAddSignal(app,
+ 		(XtSignalCallbackProc) mx_change, (XtPointer) 0
+ 	);
+ #endif
  
  	/*
  	 * Install WM_DELETE_WINDOW handler