GNU bug report logs - #62917
‘guix shell -CH’ should be able to contain both GCC and Clang

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: John Kehayias <john.kehayias <at> protonmail.com>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#62917: closed (‘guix shell
 -CH’ should be able to contain both GCC and Clang)
Date: Sun, 15 Dec 2024 06:05:01 +0000

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Your message dated Sun, 15 Dec 2024 06:04:15 +0000
with message-id <874j355vot.fsf <at> protonmail.com>
and subject line Re: [bug#62917] [bug#73799] [PATCH] Fix 'guix shell: error: symlink: File exists: "/bin/cc"'
has caused the debbugs.gnu.org bug report #62917,
regarding ‘guix shell -CH’ should be able to contain both GCC and Clang
to be marked as done.

(If you believe you have received this mail in error, please contact
help-debbugs <at> gnu.org.)


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62917: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=62917
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From: zamfofex <zamfofex <at> twdb.moe>
To: "bug-guix <at> gnu.org" <bug-guix <at> gnu.org>
Subject: ‘guix shell -CH’ should be able to contain both GCC and Clang
Date: Mon, 17 Apr 2023 21:14:15 -0300 (BRT)

When I add ‘gcc-toolchain’, it seems to try to create a ‘/bin/cc’ symlink to GCC, but the Clang package also has a ‘cc’ executable, so it fails.

- - - - - - - - -
% guix shell -CF clang-toolchain gcc-toolchain
guix shell: error: symlink: File exists: "/bin/cc"
- - - - - - - - -

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From: John Kehayias <john.kehayias <at> protonmail.com>
To: 62917-done <at> debbugs.gnu.org
Cc: Ludovic Courtès <ludo <at> gnu.org>,
 Marco Fortina <marco_fortina <at> hotmail.it>,
 Maxim Cournoyer <maxim.cournoyer <at> gmail.com>
Subject: Re: [bug#62917] [bug#73799] [PATCH] Fix 'guix shell: error: symlink:
 File exists: "/bin/cc"'
Date: Sun, 15 Dec 2024 06:04:15 +0000

On Sun, Dec 15, 2024 at 01:36 PM, Maxim Cournoyer wrote:

> Hi Marco,
>
> Marco Fortina <marco_fortina <at> hotmail.it> writes:
>
>> This patch closes issue when running "guix shell --container --emulate-fhs clang-toolchain gcc-toolchain" or "guix shell --container --emulate-fhs clang-toolchain gcc-toolchain":
>>
>>
>> diff --git a/guix/scripts/environment.scm b/guix/scripts/environment.scm
>> index a219b2ac89..37f11395f9 100644
>> --- a/guix/scripts/environment.scm
>> +++ b/guix/scripts/environment.scm
>> @@ -464,7 +464,8 @@ (define (setup-fhs profile)
>>    ;; /bin since that already has the sh symlink and the other (optional) FHS
>>    ;; bin directories will link to /bin.
>>    (let ((gcc-path (string-append profile "/bin/gcc")))
>> -    (if (file-exists? gcc-path)
>> +    (if (and (file-exists? gcc-path)
>> +             (not (file-exists? "/bin/cc")))
>>          (symlink gcc-path "/bin/cc")))
>>
>>    ;; Guix's ldconfig doesn't search in FHS default locations, so provide a
>
> I see Ludovic pushed a variant of the above fix with
> 23ab6fc29f28b0fa9ad94bf2ceed135ee3fdea34, and attributed your discovery
> of the problem.
>
> Good.  Thanks for the report and patch!

Thanks for the followup, closing this.

John

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