I've tried pulling in https://github.com/tmeshkova/xulrunner-package and running ./build -t fremantle. It looks as though it should be pulling in the other repos from tmeshkova repo as well.

1. can't pull https git clone. even with devkit, and symlink in /usr/share/curl. Worked with git://
2. requires a sb target called FREMANTLE_ARMEL_GCC472. I have this installed as part of FREMANTLE_THUMB target. I cheated by symlinking target directory for now, just to see how far it would go.
3. fremantle build target calls a routine to check for sb2. I don't have this setup.

freemangordon, you posted gcc info whilst i was typing