libclass-c3-perl 0.21-1 (i386 binary) in ubuntu maverick

 Class::C3 is pragma to change Perl 5's standard method resolution order from
 depth-first left-to-right (a.k.a - pre-order) to the more sophisticated
 C3 method resolution order.
 .
 C3 is the name of an algorithm which aims to provide a sane method resolution
 order under multiple inheritence. It was first introduced in the langauge
 Dylan, and then later adopted as the preferred MRO (Method Resolution Order)
 for the new-style classes in Python 2.3. Most recently it has been adopted as
 the 'canonical' MRO for Perl 6 classes, and the default MRO for Parrot objects
 as well.