Debhelper addon to track package versions used to build a package This script is designed to be run at build-time, and registers in a file the list of packages declared as build-time dependencies, as well as build-essential packages, together with their versions, as installed in the build machine. This will hopefully help to track packages (auto-)built with package versions which are known to be buggy, and, more generally, to find out whether a package needs to be rebuilt because of a significant change in a package it has a build-time dependency on.