Using IWidgets with Tkx

[Kevin J. Woolley]

Hello folks,

I'm trying to use IWidgets with Tkx in Perl, but the following:
use Tkx;
Tkx::package_require("Iwidgets");

Fails, saying that the package can't be found.

I've tried setting $tcl_pkgPath and $auto_path, both in the Tkx 
namespace and in the main namespace to no effect.

I have ActivePerl 5.8.8.820 and ActiveTcl 8.4.14 installed.  What do I 
need to do to make this work?

Thank you,

kjw