From mboxrd@z Thu Jan  1 00:00:00 1970
From: ludo@gnu.org (Ludovic =?utf-8?Q?Court=C3=A8s?=)
Subject: Initial cross-compilation support
Date: Wed, 27 Feb 2013 21:05:54 +0100
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Hello!

Commit 827d289 of the =E2=80=98core-updates=E2=80=99 branch adds cross-base=
.scm, which
builds a cross tool chain.

So if you type =E2=80=98guix build gcc-cross-mips64el-linux-gnu=E2=80=99, y=
ou get a
cross-compiler (+ libc, binutils) for that platform.  The compiler is
slightly modified by this patch:

  http://git.savannah.gnu.org/cgit/guix.git/tree/gnu/packages/patches/gcc-c=
ross-environment-variables.patch?h=3Dcore-updates&id=3D827d28914a16ef2d10eb=
dad4695efdb02ace07fb

The end goal is to be able to run:

  guix build --target=3Dmips64el-linux-gnu coreutils

and get a cross-built Coreutils.

What remains to be done is to implement =E2=80=98package-cross-derivation=
=E2=80=99 in
(guix packages), and to adjust build-system/gnu to support cross builds.

If someone volunteers, that=E2=80=99s always appreciated ;-), otherwise I=
=E2=80=99ll
check what I can do later on.

Ludo=E2=80=99.