This package contains [incr Tcl] version 3.0.1.  [incr Tcl] is an
object oriented extension to Tcl. The [incr Tcl] language is also known as
``itcl''.

A companion to [incr Tcl] called [incr Tk] builds a ``mega-widget''
framework into Tk. The [incr Tk] extension is also known as
``itk'' and is available in x11-toolkits.

WWW: https://sourceforge.net/projects/incrtcl/