AFAIK, a 5.10 ppd for Tk is not available for OSX (just like XML::LibXML not being available, but separate issue)--could be wrong, but as you say this is not going to fix my problem, and neither, I suspect, will Win32::Anything because of the platforms I need to support (leaving aside all the mess having conditional evals for other platforms would introduce, if similar features exist), but thanks for the thought.