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Re: 01/03: gnu: Add QD.
From: |
Ludovic Courtès |
Subject: |
Re: 01/03: gnu: Add QD. |
Date: |
Mon, 05 Feb 2018 12:04:19 +0100 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/25.3 (gnu/linux) |
Eric Bavier <address@hidden> skribis:
> On Sat, 03 Feb 2018 22:55:56 -0500
> Mark H Weaver <address@hidden> wrote:
>
>> Hi Eric,
>>
>> address@hidden (Eric Bavier) writes:
>> > bavier pushed a commit to branch master
>> > in repository guix.
>> >
>> > commit cbc084e1a7c25d1c8944bcb20a989f795acdb096
>> > Author: Eric Bavier <address@hidden>
>> > Date: Wed Jan 31 13:55:37 2018 -0600
>> >
>> > gnu: Add QD.
>> [...]
>> > +(define-public qd
>> > + (package
>> > + (name "qd")
>> > + (version "2.3.18")
>> > + (source (origin
>> > + (method url-fetch)
>> > + (uri (string-append
>> > "http://crd.lbl.gov/~dhbailey/mpdist/qd-"
>> > + version ".tar.gz"))
>> > + (sha256
>> > + (base32
>> > + "0vkihcj9fyv2cycq8515713gbs3yskhmivy8bznvx72i6ddnn2c1"))))
>> > + (build-system gnu-build-system)
>> > + (native-inputs
>> > + `(("gfortran" ,gfortran)))
>> > + (arguments
>> > + `(#:configure-flags `("--disable-enable_fma" ;weird :/
>>
>> "weird :/" is not a very useful comment.
>
> Sorry. I thought it was obvious it was in reference to the
> "disable-enable" bit.
>
>> Can you change it to explain
>> why you added this flag? It seems unfortunate to disable fused
>> multiply-add for this kind of library.
>
> The library does not support runtime ISA detection. I thought FMAs are
> something we don't support in our baseline x86-64 builds?
Indeed.
Ludo'.