libarchive/libarchive — pull request #49 by rosslagerwall (2013-09-16 06:44:46+00:00)
Title: Show third party library versions in version string

Add a utility function, archive_version_details, to return a string
containing the libarchive version as well as the versions of third party
libraries such as zlib, bz2lib and liblzma. Use this function for
bsdtar --version and bsdcpio --version.

http://code.google.com/p/libarchive/issues/detail?id=118