Alien:: Modules sometimes try to pull down the library from their source if they can't be detected on the machine.

Currently that's a problem as the author is looking for the build to be in sourceforge, which is no fun.

If you have cpanm installed, you can do the following:

• cpanm --look Alien::WxWidgets
• grep -RE 'sourceforge' *

Try replacing the sourceforge URL with the GitHub Releases instead?

I haven't tried this particular package, but in general that's how I remember things working. Talk to us on IRC if you can't get any further along. The people in that channel are very knowledgable.