From mboxrd@z Thu Jan  1 00:00:00 1970
From: Vincent Legoll <vincent.legoll@gmail.com>
Subject: Re: gcc default args
Date: Mon, 18 Jul 2016 16:28:04 +0200
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To: =?UTF-8?Q?Ludovic_Court=C3=A8s?= <ludo@gnu.org>
Cc: help-guix@gnu.org

>> I searched for a way to set gcc's -march globally, for the whole distro,
>> is this possible with guix ?
>
> It=E2=80=99s possible, but inconvenient: you=E2=80=99d have to modify (gu=
ix build
> gnu-build-system), or to add a GCC wrapper that appends =E2=80=9C-march=
=3Dfoo=E2=80=9D.

OK thanks, I'll try it

> However, because you=E2=80=99d be building things differently, you wouldn=
=E2=80=99t be
> able to use substitutes provided by mirror.hydra.gnu.org.
>
> Likewise, binaries built on your machine may be unusable on other
> machines, if you use -march=3Dnative or similar.

Yes, I know the consequences, I'm not distributing the resulting system.

--=20
Vincent Legoll