bzr branch URL
Where URL is http://telecom.inescporto.pt/~gjc/bzr/gnumexp/. It is also mirrored in launchpad (with a 24 hour delay), with the URL http://launchpad.net/products/gnumexp.
./autogen.sh [configure switches]make
You can run make install to install gnumexp system-wide, then run it, but for testing it's easier to run from the source directory; to do so do:
cd src./gnumexp [options]
If you do something cool with gnumexp, the simplest way to produce a patch is with the command bzr diff > /tmp/mypatch.diff. You can then open a bug report and attach the patch to it.