> For more explanation, see this fragment of a thread from the
 > Autoconf mailing-list archives.  The first of these links points
 > to the question, the second to the reply; the rest of the thread
 > can be safely ignored :-)
 > http://mail.gnu.org/archive/html/autoconf/2003-03/msg00154.html
 > http://mail.gnu.org/archive/html/autoconf/2003-03/msg00156.html
 > 
 > The second of these messages also suggests an approach that the
 > Amanda folks could use to suppress this scary-sounding warning,
 > which is why I've CCed this to the amanda-hackers list...

Thanks for passing this along.  I've applied something resembling the
fix at those URLs. (while I was there I dealt with a manifestation of
the same problem for NetBSD for sys/mount.h).

-Todd