Edit: the problems in this review seem to have been addressed as of version 0.12. I'm leaving the review text here for the time being.
* STALE REVIEW FOLLOWS
This module offers an interface to Facebook's new Zstandard compression library based on the new asymmetric numeral compression algorithms of Jarek Duda. It incorporates the Zstandard libraries into the module, which means that you don't have to download any third-party libraries to install this. It should be a great contribution, but I have to say I'm frustrated by this module.
The author went on to release another version to CPAN after the bug reports.
While I think this module could be a big contribution to CPAN, I'm not really sure why the module owner won't fix trivial bugs like that, but leaves the module in a state of disarray.
All of the Windows compilations report errors too: