Minor compilation issue

[Russ Allbery]

the wharf rat <wrat at jump.net> writes:

> Undefining  DO_NNRP_GETHOSTBYADDR results in an undefined call 
> to Address2Name at nnrpd.c:442

Applied.  Thanks.

-- 
Russ Allbery (rra at stanford.edu)             <http://www.eyrie.org/~eagle/>