$ perl5.10.0 -v

This is perl, v5.10.0 built for i686-linux-thread-multi
(with 3 registered patches, see perl -V for more detail)

Copyright 1987-2007, Larry Wall

Binary build 1002 [283697] provided by ActiveState http://www.ActiveState.com
Built Jan 10 2008 07:35:18
...