ProdNG package generation: method

• We use the Debian source with modifications to Debian/rules to recompile with fewer options and/or exclude sub-packages we don't need.

• Package build creates a full ProdNG image on the fly using the latest packages you specified (ProdNG image + build packages), installs the source and just the dependencies you specified.

• It's fast (<1mn for build environment to be ready)

• You can for instance build without having libncurses visible to the build, even though it is otherwise in the image.

• Image build is of course fully hermetic: You can build 32bit Ubuntu dapper on 64bit lucid or precise, or even Red Hat.