Debian Bug report logs - #881664
please make the build reproducible (cpu)

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Message #5 received at submit@bugs.debian.org (full text, mbox, reply):

From: Danny Lee <dl2863@nyu.edu>

To: submit@bugs.debian.org, Justin Cappos <jcappos@nyu.edu>, rajeshkumar@nyu.edu

Subject: please make the build reproducible (cpu)

Date: Mon, 13 Nov 2017 17:32:57 -0500

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Source: chessx
Version: 1.4.6-1 unstable
Severity: wishlist
Tags: patch
User: reproducible-builds@lists.alioth.debian.org
Usertags: cpu
X-Debbugs-Co: reproducible-bugs@lists.alioth.debian.org

Hi,

While working on the "reproducible builds" effort, we have noticed that
this package could not be built reproducibly.

Simply allocating the same number of cores to build the program resolves
this issue.

DEB_BUILD_OPTIONS="buildinfo=+all parallel=[same number of cores]"

Cheers,
Danny

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Message #10 received at 881664@bugs.debian.org (full text, mbox, reply):

From: Danny Lee <dl2863@nyu.edu>

To: 881664@bugs.debian.org

Subject: Reproducible-build

Date: Tue, 14 Nov 2017 19:53:01 -0500

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Hi,

This is the simple correction. It was later found that chessx package takes
the hostname into the account when it gets built which makes the program
not reproducible not different number of cores. At the moment, the culprit
is the autoreconf where it uses the hostname in the configuration but it is
still in the investigation.

Cheers,
Danny

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Message #15 received at 881664@bugs.debian.org (full text, mbox, reply):

From: "Bernhard M. Wiedemann" <debianbmw2017@lsmod.de>

To: 881664@bugs.debian.org

Subject: QT RCC

Date: Wed, 22 Nov 2017 14:20:49 +0100

in my testing
/usr/bin/chessx has diffs like
- 23a810 015fe3c5 de190000 00000000 00000000  ._..............
+ 23a810 0167f7b5 50870000 00000000 00000000  .g..P...........

coming from QT5's rcc tool tracked in
https://bugreports.qt.io/browse/QTBUG-62511
with an upstream patch merged in
https://codereview.qt-project.org/202999
but needing further work on the packaging side to set their var to $SOURCE_DATE_EPOCH.

also, I cannot find any configure* file or hostname call in chessx-1.4.6.tgz

Message #20 received at 881664-done@bugs.debian.org (full text, mbox, reply):

From: Vagrant Cascadian <vagrant@reproducible-builds.org>

To: Danny Lee <dl2863@nyu.edu>, 881664-done@bugs.debian.org, Justin Cappos <jcappos@nyu.edu>, rajeshkumar@nyu.edu

Subject: Re: Bug#881664: please make the build reproducible (cpu)

Date: Thu, 01 Dec 2022 09:27:35 -0800

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This appears to no longer be an issue in unstable, bookworm or bullseye
since 2020-06-26, probably due to toolchain changes in bullseye, as the
upstream did not change:

  https://tests.reproducible-builds.org/debian/history/chessx.html

There were two unreproducible builds in January of 2022 on i386 and
armhf ... though they seem to be outliers.

I was unable to reproduce the issue locally with reprotest, which does
vary the number of CPUs. tests.reproducible-builds.org does vary the
hostname in all builds, so that issue does not appear to be an issue
either.

live well,
  vagrant

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