How to install tkpiechart as a Tcl package:

First, you must install stooop version 4.1 or above as a package (do
not forget to also install the included switched class package). If
you do not have the stooop extension yet, get it from the following
location:

  http://jfontain.free.fr/

Once the stooop package is working and installed, you are ready to
install tkpiechart as a package. Choose a directory where the package
should be installed (for example /usr/lib/tkpiechart (the default),
but you may choose another: look at the pkg_mkIndex manual page for
more information (well look at it any case :-)).

Now type (from the tkpiechart installation directory):

$ mkdir /usr/lib/tkpiechart
$ instapkg.tcl /usr/lib/tkpiechart

To test if it works:

$ cd ..
$ wish tkpiechart-6.x/demo

should display the tkpiechart demonstration applet.

If you want to use tkpiechart as a package in your application, invoke
the following 2 instructions before you create any pie:

package require stooop 4.1
namespace import stooop::*
package require switched 2.2
package require tkpiechart 6.3
