bug#49640: closed ([PATCH core-updates] gnu: ghostscript: Improve reproducibility of PDF document generation)

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Your message dated Mon, 19 Jul 2021 15:23:57 +0000
with message-id <878s22cooi.fsf@kitej>
and subject line Re: bug#49640: [PATCH core-updates] gnu: ghostscript: Improve 
reproducibility of PDF document generation
has caused the debbugs.gnu.org bug report #49640,
regarding [PATCH core-updates] gnu: ghostscript: Improve reproducibility of PDF 
document generation
to be marked as done.

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49640: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=49640
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--- Begin Message --- Subject: [PATCH core-updates] gnu: ghostscript: Improve reproducibility of PDF document generation Date: Mon, 19 Jul 2021 11:45:07 +0000

Hi,

When trying to solve a reproducibility issue when generating the
PDF documentation of the txr software (see [1]), Paul Patience noticed
that ghostscript writes a creation date in the PDF even when the
GS_GENERATE_UUIDS environment variable is set to "0".

The attached patch updates 'ghostscript-no-header-creationdate.patch' to
fix this issue.

Given the amount of rebuilds caused by modifying ghostscript, this
should go to core-updates, but is core-updates in freeze state already,
or can I push this patch right now?

Note: Even with this patch, there are still some cases where PDF
generation by ghostscript is not reproducible (for reasons not related
to creation date), like groff-doc.

[1]: https://bugs.gnu.org/49517

0001-gnu-ghostscript-Improve-reproducibility-of-PDF-docum.patch
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> Subject: 
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> Re: bug#49640: [PATCH core-updates] gnu: ghostscript: Improve reproducibility of PDF document generation
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> Date: 
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> Mon, 19 Jul 2021 15:23:57 +0000
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> Ludovic Courtès <ludo@gnu.org> skribis:
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> > LGTM, you can push to ‘core-updates’.
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> Done in db5962c68099f835350c24c8a3f889b9fa1f8a8e.
> Thanks for the review.
>
> > Was this submitted upstream?
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> No, in [1] upstream indicates explicitly that they don't want to
> implement reproducible builds.
>
> [1] https://bugs.ghostscript.com/show_bug.cgi?id=698208
>
>
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