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Bug#614807: debian-policy: Please document autobuilder-imposed build-dependency alternative restrictions



Hi,

Roger Leigh <rleigh@debian.org> (23/02/2011):
> From: Roger Leigh <rleigh@debian.org>
> Date: Wed, 23 Feb 2011 15:14:56 +0000
> Subject: [PATCH] Document restrictions on alternative build dependencies
> 
> The Debian autobuilders only make use of the first alternative
> in a set of alternatives, in order to guarantee consistent,
> reproducible builds.  This does not include architecture
> restrictions, because architecture reduction takes place before
> alternative removal.  Alternatives are therefore allowed, and
> hence useful for backports and other distributions, but are not
> used by default.
> ---
>  policy.sgml |   22 ++++++++++++++++++++++
>  1 files changed, 22 insertions(+), 0 deletions(-)

thanks, I like the idea. (Adding Steve to Cc since he'll probably want
to chime in.)

Tiny question: you say it eases backports. But then backports get
autobuilt on debian buildds, so will likely use the same set of
packages as say unstable, if build-depends aren't changed specifically
for the backports. So I'm not exactly sure it actually eases anything.

KiBi.

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