GNU bug report logs - #26022
32-bit to 64-bit cross-builds

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Efraim Flashner <efraim <at> flashner.co.il>
To: bug-guix <at> gnu.org
Subject: 32-bit to 64-bit cross-builds
Date: Wed, 8 Mar 2017 11:46:03 +0200

[Message part 1 (text/plain, inline)]

Currently in build-aux/hydra we have i686->x86_64 cross-builds disabled,
but this is not the only one we should eliminate. Currently on
core-updates we have armhf->mips64el attempts and also armhf and i686->
aarch64 attemps, all of which fail as expected.

I propose we add two sub-lists of %supported-architectures, 32-bit and
64-bit; we can use them in package difinitions to eliminate 32-bit
architectures from building 64-bit only packages, and use them in
build-aux/hydra to prevent 32-bit -> 64-bit cross-builds.

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Efraim Flashner   <efraim <at> flashner.co.il>   אפרים פלשנר
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Message #10 received at 26022-done <at> debbugs.gnu.org (full text, mbox):

From: ludo <at> gnu.org (Ludovic Courtès)
To: Efraim Flashner <efraim <at> flashner.co.il>
Cc: 26022-done <at> debbugs.gnu.org
Subject: Re: bug#26022: 32-bit to 64-bit cross-builds
Date: Thu, 09 Mar 2017 16:29:53 +0100

Efraim Flashner <efraim <at> flashner.co.il> skribis:

> Currently in build-aux/hydra we have i686->x86_64 cross-builds disabled,
> but this is not the only one we should eliminate. Currently on
> core-updates we have armhf->mips64el attempts and also armhf and i686->
> aarch64 attemps, all of which fail as expected.
>
> I propose we add two sub-lists of %supported-architectures, 32-bit and
> 64-bit; we can use them in package difinitions to eliminate 32-bit
> architectures from building 64-bit only packages, and use them in
> build-aux/hydra to prevent 32-bit -> 64-bit cross-builds.

I believe this if fixed in 9ec2a4d3fec44f08a55df9f5f3d1a04b83e7fcf6, not
by specifying a list of valid cross-builds, but by fixing the logic in
the ‘from-32-to-64?’ procedure.

Thanks,
Ludo’.

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