libarchive/libarchive — pull request #7 by ckolivas (2012-03-18 03:56:58+00:00)
Title: Basic support for lrzip compression and decompression.

Add basic archive read and write filter support for lrzip using external binary. The library interfaces to liblrzip are licensed GPLv2+ making more comprehensive support not suitable.
Code from Michael Blumenkrantz