From mboxrd@z Thu Jan  1 00:00:00 1970
From: Mark H Weaver <mhw@netris.org>
Subject: Re: [PATCH] Attempt to fix OpenBLAS on MIPS.
Date: Tue, 21 Jul 2015 11:15:10 -0400
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In-Reply-To: <idjmvyr2cty.fsf@bimsb-sys02.mdc-berlin.net> (Ricardo Wurmus's
	message of "Mon, 20 Jul 2015 15:11:37 +0200")
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To: Ricardo Wurmus <ricardo.wurmus@mdc-berlin.de>
Cc: guix-devel <guix-devel@gnu.org>

Ricardo Wurmus <ricardo.wurmus@mdc-berlin.de> writes:

> Attached is a patch that *might* fix the build of OpenBLAS on MIPS.
>
> The LOONGSON3A and LOONGSON3B targets both enable the use of special
> extended instructions which may not be available on other MIPS CPUs.
> This patch forces the SICORTEX target to be used, which should limit the
> code to only standard MIPS instructions.
>
> I don=E2=80=99t know if this would actually work and I note that SICORTEX=
 is
> listed as a =E2=80=9Cmips=E2=80=9D target, rather than =E2=80=9Cmips64=E2=
=80=9D, so maybe this is doomed
> to fail.  I would appreciate it if someone with a MIPS machine could
> test this patch.

With this patch, openblas builds successfully on mips64el, although I
cannot say whether it works, since there are no tests.

Is there a (preferably not huge) package that uses openblas and has a
test suite that I could try?

      Mark