See https://wiki.debian.org/ReproducibleBuilds/Howto https://wiki.debian.org/ReproducibleBuilds/Howto You would probably need to pass in an "-frandom-seed" opt

See https://wiki.debian.org/ReproducibleBuilds/Howto https://wiki.debian.org/ReproducibleBuilds/Howto You would probably need to pass in an "-frandom-seed" option and make sure your environment is the same, but I would imagine you can get that to give you a deterministic output fairly easily. Most of the difficulty comes in the packaging, where you need to make sure that files enter the archive with the same timestamps/permissions, and in the same order.