From mboxrd@z Thu Jan  1 00:00:00 1970
From: ludo@gnu.org (Ludovic =?utf-8?Q?Court=C3=A8s?=)
Subject: Re: How to force rebuilding a pacakge?
Date: Thu, 02 Jun 2016 23:12:11 +0200
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References: <57502D46.3020607@crazy-compilers.com>
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In-Reply-To: <57502D46.3020607@crazy-compilers.com> (Hartmut Goebel's message
	of "Thu, 2 Jun 2016 14:57:42 +0200")
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To: Hartmut Goebel <h.goebel@crazy-compilers.com>
Cc: help-guix@gnu.org

Hi!

Hartmut Goebel <h.goebel@crazy-compilers.com> skribis:

> - guix build --check =E2=80=A6 does not provide a meaningful build log

Note that, when grafts are applicable to a package, =E2=80=98guix build
the-package=E2=80=99 builds the derivation that grafts the package, not the
derivation that builds the original package.

Similarly, =E2=80=98guix build --check the-package=E2=80=99 rebuilds the de=
rivation that
grafts the package, not the derivation that builds the original package.

Instead, you may want to use =E2=80=98guix build --check --no-grafts
the-package=E2=80=99 to actually rebuild the original package.

Likewise for the build log of the original package: =E2=80=98guix build
--log-file --no-grafts the-package=E2=80=99.

HTH,
Ludo=E2=80=99.