Checking patch sysdeps/mach/hurd/fcntl.c...
error: while searching for:
	  result = -1;
	else
	  {
	    /* Give the ports each a user ref for the new descriptor.  */
	    __mach_port_mod_refs (__mach_task_self (), port,
				  MACH_PORT_RIGHT_SEND, 1);
	    if (ctty != MACH_PORT_NULL)
	      __mach_port_mod_refs (__mach_task_self (), ctty,
				    MACH_PORT_RIGHT_SEND, 1);

	    /* Install the ports and flags in the new descriptor.  */
	    if (ctty != MACH_PORT_NULL)
	      _hurd_port_set (&new->ctty, ctty);
	    new->flags = flags;
	    _hurd_port_locked_set (&new->port, port); /* Unlocks NEW.  */
	  }

	HURD_CRITICAL_END;

error: patch failed: sysdeps/mach/hurd/fcntl.c:83
error: sysdeps/mach/hurd/fcntl.c: patch does not apply