libsort-key-perl 1.33-1build5 (armhf binary) in ubuntu artful

 Sort::Key claims to be the fastest way to sort anything in Perl. It
 provides a set of functions to sort lists of values by some calculated
 key value. Multikey sorting functionality is also provided via the
 companion modules Sort::Key::Multi, Sort::Key::Maker and
 Sort::Key::Register.