From: Ricardo Wurmus <rekado@elephly.net>
To: 宋文武 <iyzsong@gmail.com>
Cc: guix-devel@gnu.org
Subject: Re: [PATCH 2/2] gnu: zita-convolver: Drop the '-march=native' optimization.
Date: Wed, 06 Jan 2016 22:13:55 +0100 [thread overview]
Message-ID: <874meq5s30.fsf@elephly.net> (raw)
In-Reply-To: <1452095330-14147-1-git-send-email-iyzsong@gmail.com>
> + (snippet
> + ;; Don't optimize for a specific processor architecture.
> + '(substitute* "libs/Makefile"
> + (("^CXXFLAGS \\+= -march=native") "")))
> + (modules '((guix build utils)))
Is this to avoid that packages are optimised for the CPU of the build
slave? If so, could we instead pass different optimisation flags for
different architectures? For a convolver I’d prefer to have *some*
optimisation, even if it’s just the greatest common divisor.
~~ Ricardo
next prev parent reply other threads:[~2016-01-06 21:14 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-06 15:48 [PATCH 2/2] gnu: zita-convolver: Drop the '-march=native' optimization 宋文武
2016-01-06 21:13 ` Ricardo Wurmus [this message]
2016-01-07 3:58 ` 宋文武
2016-01-07 8:37 ` Ricardo Wurmus
2016-01-07 13:20 ` Ludovic Courtès
2016-01-07 14:53 ` 宋文武
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