GNU bug report logs - #48661
reproducibility: build date in modus-themes.info

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Package: emacs;

Reported by: Glenn Morris <rgm <at> gnu.org>

Date: Tue, 25 May 2021 21:51:02 UTC

Severity: minor

Found in version 28.0.50

Done: Protesilaos Stavrou <info <at> protesilaos.com>

Bug is archived. No further changes may be made.

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From: Kévin Le Gouguec <kevin.legouguec <at> gmail.com>
To: Glenn Morris <rgm <at> gnu.org>
Cc: info <at> protesilaos.com, 48661 <at> debbugs.gnu.org
Subject: bug#48661: reproducibility: build date in modus-themes.info
Date: Wed, 26 May 2021 12:22:22 +0200

Glenn Morris <rgm <at> gnu.org> writes:

>    This manual was built on {{{export-date}}}.
>
> This makes the generated info file non-reproducible (different every build).
> Please consider removing this information.

Question from the peanut gallery: are timestamp information really
verboten in reproducible builds?  I was led to believe that the
SOURCE_DATE_EPOCH mechanism was introduced to allow programs to keep
embedding this information, while giving packagers the means to assert
reproducibility.

https://reproducible-builds.org/docs/source-date-epoch/

I am not well-versed on the subject of reproducible builds, so I
apologize if I am misunderstanding the state of things; also, since I
don't think the Emacs build system uses the SOURCE_DATE_EPOCH mechanism,
I realize that this idea might be out of scope for this bug report…
This bug report was last modified 3 years and 362 days ago.

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