Notes from playing with catalyst
Disclaimer: these haven't been reviewed by any catalyst devs, who are currently quite busy working on the 2006.0 release.

Bug 141388
Command line (all 1 line):
tarsync -s 1 -o sjl /usr/portage/distfiles/endeavour-2.4.6.tar.bz2 /var/tmp/portage/endeavour-2.4.6/work/hum
source tarball
packed-up destination dir