On Fri, Jul 3, 2009 at 3:33 PM, Andrei Thorp<garoth@xxxxxxxxx> wrote: > > Another possible issue is the question of whether this sort of > compression works as well for the deltas system in pacman. This only depends on the following trivial patch to xdelta3 (add xz support) : http://code.google.com/p/xdelta/issues/detail?id=87 deltas are useless if the compression used is not recognized (and thus without uncompress / recompress done automatically).