libterm-readline-gnu-perl 1.19-1 (amd64 binary) in ubuntu karmic

 Term::ReadLine::Gnu is an implementation of a Perl interface to the GNU
 Readline Library. This module gives you input line editing, input history
 management, word completion, and other similar facilities. This module gives
 you access to almost all variables and functions documented in the GNU
 ReadLine/History Library. This means you can write your custom editing
 function, your custom completion function, and so on with Perl. You may find
 it useful for prototyping before programming with C.