I have been playing with a file from the perl FAQ,
http://www.perl.com/CPAN-local/doc/FMTEYEWTK/IPC/udp.html
and while it runs fine on one machine (same version of perl) it 
produces this error on others. I can't find any modules that I am 
missing.

Any suggestions?

firestorm% ./hyb2
Useless use of gethostbyname in void context 
at /usr/local/lib/perl5/Sys/Hostname.pm line 42.
 localhost             0 Fri Sep 19 09:12:32 1997

firestorm% uname -a
NetBSD firestorm.fundy.ca 1.2G NetBSD 1.2G (FIRESTORM) #4: Mon Sep  8
19:31:43 A DT 1997    

perl -v

This is perl, version 5.003 with EMBED
        built under netbsd at Mar 17 1997 11:57:57
        + suidperl security patch

Copyright 1987-1996, Larry Wall