With the changed build-root setup and a non-failing package you can check
if unwanted changes were introduced by the last build using the attached
script which takes a directory as argument and tries to 'cleverly' compare
old and new logs.
No reference for libzio
Richard Guenther <rguenther(a)suse.de>
Novell / SUSE Labs
SUSE LINUX Products GmbH - Nuernberg - AG Nuernberg - HRB 16746 - GF: Markus Rex