From mboxrd@z Thu Jan  1 00:00:00 1970
From: ludo@gnu.org (Ludovic =?utf-8?Q?Court=C3=A8s?=)
Subject: Re: 01/01: gnu: ccl: Include x86-headers and remove missing "contrib"
	folder.
Date: Thu, 22 Nov 2018 10:18:29 +0100
Message-ID: <87r2fdcvx6.fsf@gnu.org>
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	<87sgzvy73u.fsf@gnu.org> <875zwrmvoi.fsf@ambrevar.xyz>
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In-Reply-To: <875zwrmvoi.fsf@ambrevar.xyz> (Pierre Neidhardt's message of
	"Tue, 20 Nov 2018 19:49:01 +0100")
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To: Pierre Neidhardt <mail@ambrevar.xyz>
Cc: guix-devel@gnu.org

Hello,

Pierre Neidhardt <mail@ambrevar.xyz> skribis:

> Oops!  Sorry for that.

No problem.  :-)

> What would be the most lispy way to return nothing from the match?
> I'm thinking of splicing the resulting lists, but that sounds a bit overk=
ill:
>
> (let ((dirs '("lib" "library" "examples" "tools" "objc-bridge"
>               ,@(match (%current-system)
>                  ("x86_64-linux"
>                   '("x86-headers64"))
>                  ("i686-linux"
>                   '("x86-headers"))
>                  (_ '())))))
>
> Thoughts?

LGTM.  Make sure =E2=80=98guix build=E2=80=99 and =E2=80=98guix lint=E2=80=
=99 are happy too.  :-)

Thanks,
Ludo=E2=80=99.