>Which packages do I need to install to build the package from the 
git
>tree.  My base installation of Trinity is: tde-tdebase 3.5.13_sru-
2.
>I may need to install developmental builds of the dependencies, 
for my
>distribution (Arch Linux, if it matters.

There are several Archers subscribed to this list. Calvin and David 
come to mind. The Archers have a specific web page posted at the 
Arch web site for building Trinity.

The first place to collect build information is the Trinity wiki:

http://www.trinitydesktop.org/wiki/bin/view/Developers/HowToBuild

As mentioned previously, the best approach is to build TQt3 and not 
Qt3 and then build the remaining package set against TQt3.

Note that all packages can be built to /opt/trinity except one: 
tqtinterface. That package needs to be built to install to /usr. I 
don't know when that will be fixed and changed. Generally, most of 
us build to /opt/trinity rather than /usr to avoid conflicts with 
KDE4, which is provided in most distros. A primary reason is 
although we have renamed many files, many remain with the same name 
as those used in KDE4.

Check the wiki for the suggested build order (section 7).

There are two branches from which to build: 3.5.13.x and the 
development branch, targeted as R14. I build exclusively from the 
R14 branch and use those packages daily as my production system. 
Very stable. Yes, there are bugs, irritants, and build issues, but 
I have work-arounds for almost all problems. In other words, don't 
be afraid to build from and use the R14 branch. :)

Darrell