perl如何使用SNMP？

perl如何使用SNMP？
我在Linux里面安装SNMP-4.2.0,老出错：[root@test20 SNMP-4.2.0]# perl Makefile.PL
Where are the ucd-snmp include files? [/usr/local/include]
Where is the ucd-snmp library installed? [/usr/lib]
WARNING: MAN3PODS takes a hash reference not a string/number.
Please inform the author.
Checking if your kit is complete...
Looks good
Note (probably harmless): No library found for -lsnmp
Can't use string ("SNMP") as a HASH ref while "strict refs" in use at /usr/local/lib/perl5/5.8.6/ExtUtils/MM_Unix.pm line 503.
问题出在哪里，对linux没有什么研究，所以不太懂。