GNU bug report logs - #21803
Guitarix builds non-deterministically

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: ludo <at> gnu.org (Ludovic Courtès)
Subject: bug#21803: closed (Re: bug#21803: Guitarix builds non-deterministically)
Date: Fri, 11 Sep 2020 16:49:02 +0000

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Your bug report

#21803: Guitarix builds non-deterministically

which was filed against the guix package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 21803 <at> debbugs.gnu.org.

-- 
21803: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=21803
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

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From: Maxim Cournoyer <maxim.cournoyer <at> gmail.com>
To: zimoun <zimon.toutoune <at> gmail.com>
Cc: Ludovic Courtès <ludo <at> gnu.org>, 21803-done <at> debbugs.gnu.org
Subject: Re: bug#21803: Guitarix builds non-deterministically
Date: Fri, 11 Sep 2020 12:48:55 -0400

Hello,

[...]

> Guitarix has been updated to 0.41.0 by commit
> bf592ef506e1db0340dc11faa0514fe80793e6d6.
>
> I have tried "guix build guitarix --no-grafts --check -K" at least 10
> times without noticing an unreproducible behaviour.
>
> Could someone confirm this and then close this almost 5 years old bug?

Confirmed!

>> It would be nice to see why this happens, and whether this affects all
>> Waf-based packages.
>
> I propose to open another bug report to track the waf-based packages issues.

This sounds reasonable, given this is 5 years old and perhaps not
relevant anymore.

Closing, thank you!

Maxim

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From: ludo <at> gnu.org (Ludovic Courtès)
To: bug-guix <at> gnu.org
Subject: Guitarix builds non-deterministically
Date: Sun, 01 Nov 2015 11:30:39 +0100

Guitarix 0.33.0, as of Guix commit 3c3e697, builds
non-deterministically:

--8<---------------cut here---------------start------------->8---
$ ./pre-inst-env guix challenge guitarix
updating list of substitutes from 'http://hydra.gnu.org'... 100.0%
/gnu/store/6ksnwcqn92z2nf6qw5js7njnfqlifgpb-guitarix-0.33.0 contents differ:
  local hash: 1rh7qxmylsbsaah59h7sclqqxcz0lwsixlc0krkzwhx8gfhlyam6
  http://hydra.gnu.org/nar/6ksnwcqn92z2nf6qw5js7njnfqlifgpb-guitarix-0.33.0: 1cq4k1wdqibwraqk0wkjj6n5hgs9v9zcvwr2wfgxvgxnf5l1rfhf
$ wget -q -O - http://hydra.gnu.org/nar/6ksnwcqn92z2nf6qw5js7njnfqlifgpb-guitarix-0.33.0 | bunzip2 | guix archive -x t
$ LC_ALL=C diff -r /gnu/store/6ksnwcqn92z2nf6qw5js7njnfqlifgpb-guitarix-0.33.0 t
$ LC_ALL=C diff -r --no-dereference /gnu/store/6ksnwcqn92z2nf6qw5js7njnfqlifgpb-guitarix-0.33.0 t
File /gnu/store/6ksnwcqn92z2nf6qw5js7njnfqlifgpb-guitarix-0.33.0/lib/libgxw.so is a symbolic link while file t/lib/libgxw.so is a regular file
--8<---------------cut here---------------end--------------->8---

It appears to create libgxw.so either as a symlink or as a regular file
in a non-deterministic fashion.

It would be nice to see why this happens, and whether this affects all
Waf-based packages.

Ludo’.

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