Bug#846970: debian-policy: Proposal for a Build-Indep-Architecture: control file field
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On Sun, Dec 04, 2016 at 07:32:29PM +0100, Christoph Biedl wrote:
> Package: debian-policy
> Severity: normal
>
> Following a recent discussion on debian-devel[0], I'd like to
> formalize the (XS-)Build-Indep-Architecture: header mentioned there.
>
> As an initial wording (probably 5.6.30):
>
> This header is useful in the rare case where Architecture: all
> packages cannot be built on all architectures for reasons outside the
> maintainer's control. The value is an architecture wildcard
> identifying a set of Debian machine architectures, see [Architecture
> wildcards, Section 11.1.1], and should describe at least two
> architectures. The default is "any".
>...
> Pros:
>
> * The maintainer can document both successful and failing architectures.
> * Thus downstream folks have a better hint which archs to avoid.
>
> Cons:
> * This creates more complexity in the description and the parser
> * This creates also uncertaincy about the arch not mentioned
There are two additional points why this would be a bad idea:
1. Debian does not currently have non-amd64 binary-all autobuilders
Stating that binary-all packages in the archive are always being
built on amd64 would actually document the current status quo,
assuming source-only uploads.
AFAIR pixfrogger and pixbros that I converted from binary-all to
an explicit list of all 32bit architectures were the last two
binary-all packages in main that could not be built on amd64.
These were pretty rare cases of requiring a 32bit-only package,
and such a rare hack is better than mandating that Debian must
add binary-all autobuilders for every architecture.
2. We were not able to build all binaries in a release
For aboot and palo we are shipping binaries in jessie that cannot be
rebuilt in jessie since the build architecture is not part of jessie.
Cross-compilers are available on amd64, and this is how palo and
openhackware were fixed for stretch.
> Cheers,
> Christoph
>...
cu
Adrian
- --
"Is there not promise of rain?" Ling Tan asked suddenly out
of the darkness. There had been need of rain for many days.
"Only a promise," Lao Er said.
Pearl S. Buck - Dragon Seed
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