From mboxrd@z Thu Jan  1 00:00:00 1970
From: Ricardo Wurmus <rekado@elephly.net>
Subject: Re: ./pre-inst-env guix build dangerous inside an environment?
Date: Tue, 10 Sep 2019 16:37:03 +0200
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To: Wiktor =?utf-8?Q?=C5=BBelazny?= <wz@freeshell.de>
Cc: help-guix@gnu.org


Hi Wiktor,

> While developing my first package definition to be contributed to GNU
> Guix, I followed 14.1 (=E2=80=9EBuilding from Git=E2=80=9D) and 14.2 (=E2=
=80=9ERunning
> Guix Before It Is Installed=E2=80=9D) of the manual.
>
> 14.1 suggests using a Guix environment via `guix environment guix`. I
> thought it would be even better to do `guix environment --pure guix`,
> and thus obtain some higher level of isolation.

How did you configure Guix?  This sounds like perhaps you ran
=E2=80=9C./configure=E2=80=9D without =E2=80=9C--localstatedir=3D/var=E2=80=
=9D, so that Guix would be
using a different location for its database and thus consider existing
stuff in /gnu to be invalid.

This is not a problem with using an environment.  The problem is with
using a Guix that is misconfigured so that it considers /gnu to be
=E2=80=9Cpolluted=E2=80=9D and cleans it up according to the fresh database=
 that is
found at the default localstatedir (which is not /var).

--
Ricardo