GAR building.

First I have been able to use GAR with the Debian Chroot on a Red Hat 9 
intall.
This statement is tentative as it is still building and the iso have not 
been as of yet.

I have some questions about modifying the GAR build process.

1) What controls how the build process works or rather i notice that early 
on that GCC is build and then it rebuilds it self. I was looking at the make 
files and make file includes and didnt find where that process is started 
first.

2) How do add or remove source packages to the GAR build process. Actually I 
would like to remove XFree and perl python and create a text only system? I 
have noticed that Make makes in each subdirectory is this all there is to 
theprocess?

3) How do prevent the downloading of sources or use sources that are already 
downloaded?

jim