libreadline6-dev 6.0-2ubuntu2 (i386 binary) in ubuntu karmic

 The GNU readline library aids in the consistency of user interface
 across discrete programs that need to provide a command line
 interface.
 .
 The GNU history library provides a consistent user interface for
 recalling lines of previously typed input.
 .
 This package contains development files and the readline documentation
 in info format.