It's included in the base R distribution, I believe.
> From: Kurt Sys
> Hi all,
> I have a package depending on the tcltk-package. However, I see that
> this package has been disappeared... Is there a reason why package
> 'tcltk' is not available anymore? Or is it replaced by another one?
> Remail@example.com mailing list
> PLEASE do read the posting guide!
This archive was generated by hypermail 2.1.8 : Fri 03 Mar 2006 - 03:33:19 EST