GNU bug report logs - #36477
Add Guix System cross-compilation support

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From: Ludovic Courtès <ludo <at> gnu.org>
To: Mathieu Othacehe <m.othacehe <at> gmail.com>
Cc: mbakke <at> fastmail.com, 36477 <at> debbugs.gnu.org
Subject: [bug#36477] [PATCH v3 23/48] gnu: make-linux-libre: Fix cross-compilation.
Date: Wed, 04 Sep 2019 14:52:03 +0200

Mathieu Othacehe <m.othacehe <at> gmail.com> skribis:

> * gnu/packages/linux.scm (make-linux-libre)[arguments]: Unset CROSS_CPATH to
> make sure that cross-libc is not found. Otherwise, some of its header would
> conflict with the one from linux (stdint.h and linux/types.h).
> ---
>  gnu/packages/linux.scm | 3 +++
>  1 file changed, 3 insertions(+)
>
> diff --git a/gnu/packages/linux.scm b/gnu/packages/linux.scm
> index afa860830b..9c1ba6d5b9 100644
> --- a/gnu/packages/linux.scm
> +++ b/gnu/packages/linux.scm
> @@ -665,6 +665,9 @@ for ARCH and optionally VARIANT, or #f if there is no such configuration."
>           (replace 'configure
>             (lambda* (#:key inputs native-inputs target #:allow-other-keys)
>               ;; Avoid introducing timestamps
> +             ,@(if (%current-target-system)
> +                   '((unsetenv "CROSS_CPATH"))
> +                   '())
>               (setenv "KCONFIG_NOTIMESTAMP" "1")

Could you move the comment about timestamps right above
KCONFIG_NOTIMESTAMP, and turn the explanation about CROSS_CPATH that you
put in the commit log into a comment above CROSS_CPATH?

OK with these changes, thanks!

Ludo’.

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