The GNU Readline library provides a set of functions for use by
applications that allow users to edit command lines as they are typed
in.  Both Emacs and vi editing modes are available.  The Readline
library includes additional functions to maintain a list of previously
entered command lines, to recall and perhaps edit those lines, and
perform csh-like history expansion on previous commands. 

Patches reside in readline-6.2-patches. 
