This tells me you didn't look at bootstrap.sh to figure out whats happening there :)
You should really look at the file its a simple shell script...
Quite right, I haven't...yet! :-[
Do I need to fetch freeswitch-contrib.git and if so, where do I place it - the main FS tree or somewhere separate? If I place it in the core tree does bootstrap.sh picks up the additions in that tree and adjusts the make process to account for these additions? Also, would that affect what is included/not included/enabled/not enabled in modules.conf? Thanks!
I've looked at the contrib tree and it seems to consists of a couple of directories containing various pieces of code, but rarely a description of what this directory/module is all about, so I think I'll pass on this for the time being.