Using TK with Mac Snow Leopard and Ruby 1.87

I’m going thru the book ‘Learning R.’ and am trying to use TK…
In IRB, I entered the command: require ‘tk’ but it returns: no such
file…
If I go to the shell and enter the command: tclsh it works.
So, I’m guessing I have TK but Ruby can’t find it…
I’m a ‘newbie’ to the Mac and I’ve just gone thru the agony of updating
my Rails, I had to buy a Snow Leopard upgrade [$24.99] to do this…
I’m heading to the new version of the Pickaxe book and have done Rails a
while back on a PC…

So, I’m looking to use Rails but would like to put up a few apps with
TK…and I have to use the Mac…

I’d appreciate any help…

Thank you

On Apr 25, 2011, at 12:34 , patrick lynch wrote:

So, I’m looking to use Rails but would like to put up a few apps with
TK…and I have to use the Mac…

I’d appreciate any help…

Apple doesn’t ship ruby with tk on 10.6 (but did with 10.5). You can
verify that with gem which tk. If you build your own you’ll have it,
but I can’t verify that it works:

713 % rvm 1.9.2
714 % gem which tk
/Users/ryan/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/tk.rb

gem which tk gives the following error: ERROR: Can’t find ruby library
file or shared library tk

…looks like i’m going to have to install tk…bummer

thank you