This is the XZ Embedded decompression library from
http://tukaani.org/xz/embedded.html.

Upstream code can be viewed at
  http://git.tukaani.org/xz-embedded.git

and cloned by
  git clone http://git.tukaani.org/xz-embedded.git

The in-tree copy is updated by running
  sh update.sh
from within the modules/xz-embedded directory.

Current version: [e75f4eb79165213a02d567940d344f5c2ff1be03].