Source: swi-prolog Version: 9.2.9+dfsg-1.1 Severity: wishlist Tags: upstream User: [email protected] Usertags: fileordering
Dear Maintainer, According to the Debian package rebuild infrastructure at reproduce.debian.net, the swi-prolog-doc and swi-prolog-test packages do not currently build reproducibly. In both cases, nondeterministic builds of a documentation index, 'manindex.db', contribute to this. Recent versions of the diffoscope comparison tool are able to identify that the only difference is in the ordering of entries within the index. I _think_ that those entries are built by walking the filesystem, so I've added a 'fileordering' usertag to this bugreport. Determinism might be achievable by adding a sorting step in the man_index.pl script. I think that the code that builds the index is around here in the source: https://sources.debian.org/src/swi-prolog/9.2.9+dfsg-1.1/packages/pldoc/man_index.pl?hl=146#L140-L158 ...however, my Prolog-fu is insufficient to write a patch to add deterministic sorting of the indexed entries. Thanks, James
