As of version 0.02 Lingua::Lid is thread-safe if compiled with a recent version of lid (3.0.0 or higher).

This allows you to safely call Lingua::Lid's language and charset identification functions, like lid_ffile and lid_fstr, simultaneously within your application by making use of Perl's ''threads'' module. As thread support in Perl is a compile time option, you will need a thread-enabled version of Perl as shipped by most modern Linux distributions like Debian Lenny or Ubuntu Lucid - or ActiveState's version for Windows.