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From: ludo@gnu.org (Ludovic Courtès)
To: Vincent Legoll <vincent.legoll@gmail.com>
Cc: help-guix@gnu.org
Subject: Re: gcc default args
Date: Mon, 18 Jul 2016 14:08:22 +0200	[thread overview]
Message-ID: <878twzrvwp.fsf@gnu.org> (raw)
In-Reply-To: <CAEwRq=o6eJg3y_Kr85O2awmvbiPA624Ap6GP6HAgvrYPduOSwQ@mail.gmail.com> (Vincent Legoll's message of "Mon, 18 Jul 2016 09:14:46 +0200")

Hi,

Vincent Legoll <vincent.legoll@gmail.com> skribis:

> I searched for a way to set gcc's -march globally, for the whole distro,
> is this possible with guix ?

It’s possible, but inconvenient: you’d have to modify (guix build
gnu-build-system), or to add a GCC wrapper that appends “-march=foo”.

However, because you’d be building things differently, you wouldn’t 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=native or similar.

Ludo’.

  reply	other threads:[~2016-07-18 12:08 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-07-18  7:14 gcc default args Vincent Legoll
2016-07-18 12:08 ` Ludovic Courtès [this message]
2016-07-18 14:28   ` Vincent Legoll

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