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From: ludo@gnu.org (Ludovic Courtès)
To: Federico Beffa <beffa@ieee.org>
Cc: Guix-devel <guix-devel@gnu.org>
Subject: Re: reproducibility
Date: Sun, 10 Jan 2016 21:49:27 +0100	[thread overview]
Message-ID: <874mel2m94.fsf@gnu.org> (raw)
In-Reply-To: <CAKrPhPP+j6jfmLFk5WuHxa6q=fRO++KHkeOZ4kC-Mnw8ZxNcSA@mail.gmail.com> (Federico Beffa's message of "Sat, 9 Jan 2016 11:53:27 +0100")

Federico Beffa <beffa@ieee.org> skribis:

> I've noticed that a derivation is a function of the order of the
> inputs. As an example, the following two input orders give rise to two
> distinct derivations:
>
> A)
>
>     (inputs
>      `(("texlive" ,texlive)
>        ("texinfo" ,texinfo)
>        ("m4" ,m4)
>        ("libx11" ,libx11))
>
> B)
>     (inputs
>      `(("texinfo" ,texinfo)
>        ("texlive" ,texlive)
>        ("m4" ,m4)
>        ("libx11" ,libx11))
>
> Is this intentional?

Yes.  There are several places where order matters, most importantly
search paths, and these are computed from the input lists.

Ludo’.

  reply	other threads:[~2016-01-10 20:49 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-01-09 10:53 reproducibility Federico Beffa
2016-01-10 20:49 ` Ludovic Courtès [this message]
2016-01-12 20:11   ` reproducibility Federico Beffa
2016-01-12 21:37     ` reproducibility Ludovic Courtès
2016-01-13  8:13       ` reproducibility Federico Beffa
2016-01-13  9:15         ` reproducibility Efraim Flashner
2016-01-13 19:51           ` reproducibility Federico Beffa
2016-01-13 13:56         ` reproducibility Ludovic Courtès
2016-01-13 19:53           ` reproducibility Federico Beffa

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