[BZ #5010]

2007-10-06  Ulrich Drepper  <drepper@redhat.com>
	[BZ #5010]
	* sunrpc/svc.c (struct svc_callout): Add sc_mapped element.
	(svc_register): Initialize sc_mapped.  Set to TRUE if call to
	map service succeeded.
	(svc_is_mapped): New function.
	(svc_unregister): Use it before trying to unmap service.