From: ludo@gnu.org (Ludovic Courtès)
To: David Craven <david@craven.ch>
Cc: guix-devel@gnu.org
Subject: Re: [PATCH 07/17] gnu: linux-libre: Use make-linux-libre.
Date: Sun, 11 Sep 2016 23:07:50 +0200 [thread overview]
Message-ID: <87a8fei1qx.fsf@gnu.org> (raw)
In-Reply-To: <20160909123426.18499-7-david@craven.ch> (David Craven's message of "Fri, 9 Sep 2016 14:34:16 +0200")
David Craven <david@craven.ch> skribis:
> * gnu/packages/linux.scm (linux-libre, linux-libre-4.4,
> linux-libre-4.1): Use make-linux-libre.
> (make-linux-libre): New variable.
[...]
> +(define-public linux-libre
> + (let* ((version "4.7.2")
> + (conf (kernel-config
> + (or (%current-target-system)
> + (%current-system))
> + #:variant (version-major+minor version))))
I just realized that this won’t do what we want.
The expression (or (%current-target-system) (%current-system)) is
evaluated at the top-level—i.e., when (gnu packages linux) is loaded.
At that time, (%current-system) holds its default value and
(%current-target-system) is #f. IOW, even if you do:
guix build -s foo linux-libre
or:
guix build --target=bar linux-libre
you always end up with the x86_64-linux kernel config (if you’re on
x86_64-linux).
Conversely, when we write:
(package
;; …
(inputs `(("conf" ,(kernel-config
(or (%current-target-system) …))))))
things work as expected because the ‘inputs’ field is “thunked”
(lazy-evaluated) specifically for this purpose.
A solution would be to pass a procedure instead of a config:
(define* (make-linux-libre version hash
#:key
(configuration-file #f)
(defconfig "defconfig"))
(package
(name "linux-libre")
(version version)
(source (origin
(method url-fetch)
(uri (linux-libre-urls version))
(sha256 (base32 hash))
(patches (origin-patches %boot-logo-patch))))
(build-system gnu-build-system)
(supported-systems '("x86_64-linux" "i686-linux"))
(inputs
`(("bc" ,bc)
;; …
;; Call ‘configuration-file’ and pass it the right system type.
,@(if configuration-file
`(("kconfig" ,(configuration-file
(or (%current-target-system) …))))
'())))
(define variant1
(make-linux-libre v h
#:configuration-file (lambda (system)
…)))
Makes sense?
HTH!
Ludo’.
next prev parent reply other threads:[~2016-09-11 21:08 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-08 22:45 Linux kernel David Craven
2016-09-09 1:36 ` Leo Famulari
2016-09-09 12:34 ` [PATCH 01/17] gnu: module-init-tools: Prevent line wrapping David Craven
2016-09-09 12:34 ` [PATCH 02/17] gnu: linux-libre: Use modify-phases David Craven
2016-09-09 12:34 ` [PATCH 03/17] gnu: linux-libre: Use system->architecture David Craven
2016-09-09 12:34 ` [PATCH 04/17] gnu: linux-libre: Apply %boot-logo patch in origin David Craven
2016-09-11 20:57 ` Ludovic Courtès
2016-09-09 12:34 ` [PATCH 05/17] gnu: linux-libre: Move kernel configuration to configure phase David Craven
2016-09-11 20:57 ` Ludovic Courtès
2016-09-09 12:34 ` [PATCH 06/17] gnu: linux-libre: Add support for cross-compilation David Craven
2016-09-11 20:58 ` Ludovic Courtès
2016-09-09 12:34 ` [PATCH 07/17] gnu: linux-libre: Use make-linux-libre David Craven
2016-09-11 21:07 ` Ludovic Courtès [this message]
2016-09-09 12:34 ` [PATCH 08/17] gnu: make-linux-libre: Add additional-configuration parameter David Craven
2016-09-11 21:13 ` Ludovic Courtès
2016-09-09 12:34 ` [PATCH 09/17] gnu: dtc: Remove patch-paths phase David Craven
2016-09-11 21:14 ` Ludovic Courtès
2016-09-09 12:34 ` [PATCH 10/17] gnu: Add u-boot-beagle-bone-black David Craven
2016-09-11 21:16 ` Ludovic Courtès
2016-09-09 12:34 ` [PATCH 11/17] gnu: Add make-linux-libre-source David Craven
2016-09-11 21:21 ` Ludovic Courtès
2016-09-11 21:23 ` Ludovic Courtès
2016-09-09 12:34 ` [PATCH 12/17] gnu: make-linux-libre: Add extra-version parameter David Craven
2016-09-11 21:32 ` Ludovic Courtès
2016-09-09 12:34 ` [PATCH 13/17] gnu: make-linux-libre: Add zImage to output David Craven
2016-09-11 21:24 ` Ludovic Courtès
2016-09-12 6:59 ` Danny Milosavljevic
2016-09-12 7:46 ` David Craven
2016-09-09 12:34 ` [PATCH 14/17] gnu: linux-libre: Use kmod David Craven
2016-09-11 21:25 ` Ludovic Courtès
2016-09-09 12:34 ` [PATCH 15/17] gnu: make-linux-libre: Add supported-systems parameter David Craven
2016-09-11 21:28 ` Ludovic Courtès
2016-09-09 12:34 ` [PATCH 16/17] gnu: Add linux-libre-multi-v7 David Craven
2016-09-09 14:31 ` Vincent Legoll
2016-09-11 21:30 ` Ludovic Courtès
2016-09-09 12:34 ` [PATCH 17/17] gnu: Add linux-libre-beagle-bone-black David Craven
2016-09-11 21:33 ` Ludovic Courtès
2016-09-09 22:26 ` Linux kernel Ludovic Courtès
2016-09-09 22:48 ` David Craven
2016-09-10 12:57 ` Ludovic Courtès
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