Building packages from git: several questions

A few days ago we discussed rebuilding libarts from the Trinity sources. Yet I would like clarification about all of the packages in the dependencies and libraries branch. Which are required, which are recommended, and what is an appropriate build order? Dependencies: Build order presumed to be as listed (please correct!): tqt3 or qt3 (is there a reason to build the latter rather than the former?) tqtinterface (required) arts (required) dbus-1-tqt (required?) dbus-tqt (required?) tqca-tls (required?) libart-lgpl (required?/recommended?) avahi-tqt (recommended?) python-tqt (recommended?) sip4-tqt (recommended?) tqscintilla (recommended?) Libraries: Build order: as needed for various packages. kipi-plugins (recommended? which packages?) libkdcraw (recommended? which packages?) libkexiv2 (recommended? which packages?) libkipi (recommended? which packages?) libksquirrel (recommended? which packages?) libtqt-perl (recommended? which packages?) mlt (recommended? which packages?) mlt++ (recommended? which packages?) pytdeextensions (required?/recommended? which packages?) python-trinity (required?/recommended? which packages?) Second, are python-tqt, pytdeextensions, and python-trinity direct replacements for PyQt3 and PyKDE3? That is, do we stop building PyQt3 and PyKDE3? Third, SIP is available on many/most distros. What is sip4-tqt just an add-on layer? When is that package required? Fourth, seems libart is an oddball package. All of the others are installed but for most distros, libart from Trinity is an update/upgrade package process rather than an install. Lastly, what is the deal with third-party/libreoffice? I'll update the wiki as necessary once I'm no longer confused. :) Thanks! Darrell