extern char *iou_program_name;
extern void iou_set_program_name ();
extern void iou_abort ();
extern void iou_abort_handler_bind ();
extern void iou_warning ();
extern void iou_error ();
extern void iou_fatal_error ();
extern void iou_call_warning ();
extern void iou_call_error ();
extern void iou_stat ();
extern void iou_unlink ();
extern int iou_open ();
extern void iou_close ();
extern long iou_lseek ();
extern int iou_read ();
extern void iou_write ();
extern char *iou_malloc ();
extern char *iou_realloc ();
#define iou_free free
extern void iou_free ();