$ perl -v

This is perl, v5.6.2 built for i686-linux
# should be 5.8.x for you
[snip]

$ perl -MSocket -e 'print $Socket::VERSION, $/';
1.72
$ perl -MEnmac::Transaction  -e 'print $Socket::VERSION, $/';
Can't locate Enmac/Transaction.pm in @INC (@INC contains: /usr/local/lib/perl5/5.6.2/i686-linux /usr/local/lib/perl5/5.6.2 /usr/local/lib/perl5/site_perl/5.6.2/i686-linux /usr/local/lib/perl5/site_perl/5.6.2 /usr/local/lib/perl5/site_perl .).
BEGIN failed--compilation aborted.
$