From: Hidetoshi NAGAI <nagai@...>
Date: 2012-07-11T16:34:34+09:00
Subject: Re: how to create a CText Tk widget ?

From: "Fred L." <lists@ruby-forum.com>
Subject: how to create a CText Tk widget ?
Date: Tue, 10 Jul 2012 05:30:16 +0900
Message-ID: <094f1bdd58cd8b82f14ecdc227b7ea66@ruby-forum.com>

> and here is the error I got :
> 
> C:/Ruby193/lib/ruby/1.9.1/tk/package.rb:86:in `rescue in require':
> TkPackage can't find package ctext (RuntimeError)
>   from C:/Ruby193/lib/ruby/1.9.1/tk/package.rb:83:in `require'
>   from C:/Ruby193/lib/ruby/1.9.1/tkextlib/tcllib/ctext.rb:14:in `<top
> (required)>'
>   from
> C:/Ruby193/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in
> `require'
>   from
> C:/Ruby193/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in
> `require'
>   from tk_test7.rbw:2:in `<main>'
> 
> forgot to mention, I'm on WindowsXP with the last version of
> RubyInstaller (with Tk included) and devkit..

Probably, you don't have tcllib extension package for your 
Tcl/Tk libraries which used by Ruby/Tk.
You'll be able to get the status list of extension packages by
"ruby <your-ruby-lib-path>/tkextlib/pkg_checker.rb".
(e.g."ruby C:/Ruby193/lib/ruby/1.9.1/tkextlib/pkg_checker.rb")

One of the easy ways to get tcllib/tklib package is 
"download ActiveTcl-8.4 package".
Extension packages included ActiveTcl-8.4 are available for 8.5.
To add the packages to Ruby/Tk, please copy them to the library path of
Ruby/Tk or add the path of packages to Tk::AUTO_PATH.
For example, when the path of tcllib/tklib is 
"/opt/ActiveTcl-8.4/lib/{tcllib1.9,tklib0.4}",
do 
"Tk::AUTO_PATH.list <<= '/opt/ActiveTcl-8.4/lib/tcllib1.9';
 Tk::AUTO_PATH.list <<= '/opt/ActiveTcl-8.4/lib/tklib0.4'"
or
"Tk::AUTO_PATH.list <<= '/opt/ActiveTcl-8.4/lib".

If you want to use the setting permanently, 
please add the setting to "<your-ruby-lib-path>/tkextlib/setup.rb"
or "<your-ruby-lib-path>/tkextlib/tcllib/setup.rb".
-- 
Hidetoshi NAGAI (nagai@ai.kyutech.ac.jp)
Department of Artificial Intelligence, Kyushu Institute of Technology