On Tue, 6 Oct 2009, ERSEK Laszlo wrote:

> Proposal:
>
> * Usage: user prepends "--bzip2-filter=lbzip2" to her TAR_OPTIONS.
>
> * On Debian, the tar source could be patched, so that "bzip2_filter"
>  defaults to "/etc/alternatives/bzip2-filter", which would be a symlink to
>  /bin/bzip2 per default. Packages like "lbzip2" and "pbzip2" would add
>  alternatives.

* User sets specific options for her choice of bzip2-filter by setting
appropriate environment variables. For example,

export LBZIP2_WORKER_THREADS=2
export LBZIP2_PRINT_STATS=1

Thanks,
lacos