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bug#31023: --verbosity=4 breaks build?

From: Ludovic Courtès
Subject: bug#31023: --verbosity=4 breaks build?
Date: Mon, 02 Apr 2018 23:48:03 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/25.3 (gnu/linux)

Hello Martin,

As a foreword, note that ‘--verbosity’ is almost useless, even to Guix
developers.  I think we should hide it under a weird name, maybe

Martin Castillo <address@hidden> skribis:

> I found this while trying to test offloading.
> The both attached logs are the results of
> guix build grep --no-substitutes -M 1 --verbosity=3 2>buildsuc
> guix build grep --no-substitutes -M 1 --verbosity=4 2>builderr
> # I aborted the first after a few seconds

I don’t see anything fishy in ‘builderr’.  What makes you think it

> The command was executed on guixsd with guix
> Using -M 0 it tells me to increase -M or enabled distributed builds,
> even though guix offload test succeds. The offload machine is a
> raspberry pi. Is guix able to crosscompile when offloading on other
> architectures?

Your Raspberry will handle the build if and only if you’re requesting an
armhf-linux build.  That is, if your machine is an x86_64 box, you’ll
want to type:

  guix build grep -s armhf-linux

in which case the build will go to the Raspberry.

Note that this is *not* cross-compilation.  It’s simply native
compilation offloaded to a separate machine.

For cross-compilation, see ‘--target’:



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