GNU bug report logs - #51198
[PATCH] gnu: Add b2sum.

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Message #59 received at 51198-done <at> debbugs.gnu.org (full text, mbox):

From: Leo Famulari <leo <at> famulari.name>
To: Nicolò Balzarotti <anothersms <at> gmail.com>
Cc: 51198-done <at> debbugs.gnu.org
Subject: Re: [bug#51198] [PATCH] gnu: Add b2sum.
Date: Fri, 18 Mar 2022 13:12:42 -0400

On Wed, Oct 27, 2021 at 12:26:01AM +0200, Nicolò Balzarotti wrote:
> Leo Famulari <leo <at> famulari.name> writes:
> 
> > * gnu/packages/crypto.scm (b2sum): New variable.
> 
> Hi, I guix pulled and wanted to try this, but I get
> 
> >> b2sum --help
> > Illegal instruction
> 
> (I'm on an old X200 thinkpad).  Might it be that build is not
> deterministic (and we should disable some optimization)?

I just pushed commit 386adb6df0e00e7170df0cdfaf0e04c38d0f3e11, which
removes the "march=native" compiler flag, so that the package should
work generically.

https://git.savannah.gnu.org/cgit/guix.git/commit/?id=386adb6df0e00e7170df0cdfaf0e04c38d0f3e11

This commit also enables the 'tunable?' property of the package, so that
one can use this program with the highest performance in a way that is
tailored to their hardware.

Just add the --tune command-line option to any Guix command that
provides this package and it should do the right thing.

Thanks Nicolò for reporting the problem and thanks to Ludovic for
developing the solution.

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