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Reproducible Builds: Weekly report #56

Published: May 22, 2016.

What happened in the Reproducible Builds effort between May 15th and May 21st 2016:

Media coverage

Blog posts from our GSoC and Outreachy contributors:

Documentation update

Ximin Luo clarified instructions on how to set SOURCE_DATE_EPOCH.

Toolchain fixes

  • Joao Eriberto Mota Filho uploaded txt2man/1.5.6-4, which honours SOURCE_DATE_EPOCH to generate reproducible manpages (#790801 by Reiner Herrmann).
  • Dmitry Shachnev uploaded sphinx/1.4.1-1 to experimental with improved support for SOURCE_DATE_EPOCH (#820895 by Alexis Bienvenüe).
  • Emmanuel Bourg submitted a patch against debhelper to use a fixed username while building ant packages.

Other upstream fixes

  • Doxygen merged a patch by Ximin Luo, which uses UTC as timezone for embedded timestamps.
  • CMake applied a patch by Reiner Herrmann in their next branch, which sorts file lists obtained with file(GLOB).
  • GNU tar 1.29 with support for --clamp-mtime has been released upstream, closing #816072, which was the blocker for #759886 “dpkg-dev: please make mtimes of packaged files deterministic” which we now hope will be closed soon.

Packages fixed

The following 18 packages have become reproducible due to changes in their build dependencies: abiword angband apt-listbugs asn1c bacula-doc bittornado cdbackup fenix gap-autpgrp gerbv jboss-logging-tools invokebinder modplugtools objenesis pmw r-cran-rniftilib x-loader zsnes

The following packages have become reproducible after being fixed:

Some uploads have fixed some reproducibility issues, but not all of them:

  • bzr/2.7.0-6 by Jelmer Vernooij.
  • libsdl2/2.0.4+dfsg2-1 by Manuel A. Fernandez Montecelo.
  • pvm/3.4.5-13 by James Clarke.
  • refpolicy/2:2.20140421-11 by Laurent Bigonville.
  • subvertpy/0.9.3-4 by Jelmer Vernooij.

Patches submitted that have not made their way to the archive yet:

  • #824413 against binutils by Chris Lamb: filter build user and date from test log case-insensitively
  • #824452 against python-certbot by Chris Lamb: prevent PID from being embedded into documentation (forwarded upstream)
  • #824453 against gtk-gnutella by Chris Lamb: use SOURCE_DATE_EPOCH for deterministic timestamp (merged upstream)
  • #824454 against python-latexcodec by Chris Lamb: fix for parsing the changelog date
  • #824472 against torch3 by Alexis Bienvenüe: sort object files while linking
  • #824501 against cclive by Alexis Bienvenüe: use SOURCE_DATE_EPOCH as embedded build date
  • #824567 against tkdesk by Alexis Bienvenüe: sort order of files which are parsed by mkindex script
  • #824592 against twitter-bootstrap by Alexis Bienvenüe: use shell-independent printing
  • #824639 against openblas by Alexis Bienvenüe: sort object files while linking
  • #824653 against elkcode by Alexis Bienvenüe: sort list of files locale-independently
  • #824668 against gmt by Alexis Bienvenüe: use SOURCE_DATE_EPOCH for embedded timestamp (similar patch by Bas Couwenberg already applied and forwarded upstream)
  • #824808 against gdal by Alexis Bienvenüe: sort object files while linking
  • #824951 against libtomcrypt by Reiner Herrmann: use SOURCE_DATE_EPOCH for timestamp embedded into metadata

Reproducibility-related bugs filed:

  • #824420 against python-phply by ceridwen: file is not included when building with DEB_BUILD_OPTIONS="nocheck"
  • #824572 against dpkg-dev by XImin Luo: request to export SOURCE_DATE_EPOCH in /usr/share/dpkg/*.mk.

Package reviews

51 reviews have been added, 19 have been updated and 15 have been removed in this week.

22 FTBFS bugs have been reported by Chris Lamb, Santiago Vila, Niko Tyni and Daniel Schepler.


  • During the discussion on debian-devel about PIE, an archive rebuild was suggested by Bálint Réczey, and Holger Levsen suggested to coordinate this with a required archive rebuild for reproducible builds.
  • Ximin Luo improved misc.git/reports (=the tools to help writing the weekly statistics for this blog) quite a bit, h01ger contributed a little too.

This week’s edition was written by Reiner Herrmann and Holger Levsen and reviewed by a bunch of Reproducible builds folks on IRC.

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