GNU bug report logs

#73613 texlive packages such as texlive-luatex are not reproducible

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From: Maxim Cournoyer <maxim.cournoyer@gmail.com>
To: Nicolas Goaziou <mail@nicolasgoaziou.fr>
Subject: Re: bug#73613: texlive-luatex is not reproducible
In-Reply-To: <87r08b6ub6.fsf@nicolasgoaziou.fr> (Nicolas Goaziou's message of
 "Sun, 20 Oct 2024 10:40:45 +0200")
References: <87wmipfkfu.fsf@gmail.com> <87r08b6ub6.fsf@nicolasgoaziou.fr>
Date: Sun, 15 Dec 2024 00:06:04 +0900
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Hi Nicolas,

Nicolas Goaziou <mail@nicolasgoaziou.fr> writes:

> Hello,
>
> Maxim Cournoyer <maxim.cournoyer@gmail.com> writes:
>
>> This was discovered building texlive-luatex twice (--rounds=2 -K);
>> diffoscope shows that:
>>
>
> [...]
>
>> These are apparently time stamps as well as UUIDs.  Debian [0, 1] and
>> NixOS [1] have patched some of them using faketime and substitute [0].
>>
>> We should follow suite.
>>
>> [0]  https://salsa.debian.org/live-team/live-build/-/blob/master/examples/hooks/reproducible/2006-reproducible-texlive-binaries-fmt-files.hook.chroot
>> [1]  https://github.com/NixOS/nixpkgs/pull/227873
>
> This is difficult to follow, because Debian and NixOS do not seem to
> apply the same fixes. For example, the former wraps "faketime" around
> "tex -ini tex.ini" call whereas the latter wraps it around
> "fmtutil-sys --all" call.
>
> By the way, how do you call "faketime" from (guix build-system texlive)?
> It is not possible to use (gnu packages check) module from there, isn't
> it?

You'd have to add it to the implicit inputs defined for the build
system.

> Note that Guix never runs "mtxrun --generate", so I don't think UUIDs
> are a problem in our case.

OK.  I'm afraid don't have more insights than what I had shared already
:-).

-- 
Thanks,
Maxim

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