GNU bug report logs - #51801
No warning when attempting to build unsupported system with --system

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Maxim Cournoyer <maxim.cournoyer <at> gmail.com>
Subject: bug#51801: closed (Re: bug#51801: No warning when attempting to
 build unsupported system with --system)
Date: Fri, 18 Feb 2022 13:19:01 +0000

[Message part 1 (text/plain, inline)]

Your bug report

#51801: No warning when attempting to build unsupported system with --system

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 51801 <at> debbugs.gnu.org.

-- 
51801: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=51801
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

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From: Ludovic Courtès <ludo <at> gnu.org>
To: Maxim Cournoyer <maxim.cournoyer <at> gmail.com>
Cc: 51801-done <at> debbugs.gnu.org
Subject: Re: bug#51801: No warning when attempting to build unsupported
 system with --system
Date: Fri, 18 Feb 2022 14:18:02 +0100

Ludovic Courtès <ludo <at> gnu.org> skribis:

> Maxim Cournoyer <maxim.cournoyer <at> gmail.com> skribis:
>
>> I was surprised that:
>>
>> guix build fpc --system=armhf-linux
>>
>> would send me in a dead end without any word of caution, given that
>> armhf-linux is *not* listed in the supported-systems field.
>>
>> We should at least warn near the beginning of the build, and remind of
>> that fact at the end of the build in case of failure.
>
> I came up with the patches below.
>
> The first part forbids unsupported packages altogether in user-facing
> commands: ‘guix install’, ‘guix shell’, etc.  Until now, they’d just
> start building things that were bound to fail.
>
> The second part adds a mere warning for ‘guix build’ (it does not repeat
> it at the end, though).

I went ahead and pushed them:

  0ca26437cb guix build: Warn when attempting to build an unsupported package.
  5a57313918 profiles: 'profile-derivation' rejects unsupported packages.
  0572737a62 packages: 'package-transitive-supported-systems' ignores '%current-target-system'.

Ludo’.

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From: Maxim Cournoyer <maxim.cournoyer <at> gmail.com>
To: bug-guix <bug-guix <at> gnu.org>
Subject: No warning when attempting to build unsupported system with --system
Date: Fri, 12 Nov 2021 21:51:45 -0500

Hello Guix,

I was surprised that:

--8<---------------cut here---------------start------------->8---
guix build fpc --system=armhf-linux
--8<---------------cut here---------------end--------------->8---

would send me in a dead end without any word of caution, given that
armhf-linux is *not* listed in the supported-systems field.

We should at least warn near the beginning of the build, and remind of
that fact at the end of the build in case of failure.

Thanks,

Maxim

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