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Bug#886238: Please introduce official nosystemd build profile

On 2018-01-08 20:36 -0500, Michael Stone wrote:
> On Mon, Jan 08, 2018 at 12:09:09PM -0800, Steve Langasek wrote:
> > Top-posting to just say +1, and that I was going to reply with much the
> > same.
> > 
> > I don't even think the requirement for the bootstrap profiles to not
> > functionally change the packages is necessary, but it's the way the folks
> > working on bootstrappability have chosen to do it, so it's their call.  But
> > that's definitely not a binding precedent on other build profiles that might
> > be implemented.
> How, then, would you tell by looking at the package name+version which kind
> of package you have? 

The package header says what profiles it was built with. The package
name+version doesn't change - that's part of the point. No-one should
be trying to put more than one instance of a package built with
different profiles in one repo at one time because stuff will
break. But a downstream distro could enable a profile and build
everything that way and that should be fine. 

> If you're going to change the name or version string
> anyway, why use some complicated profile system instead of just applying a
> patch? 

It's not really complicated. It's just a mechanism for variant package
builds which is formalised in dpkg and related tools (without changing
the package name/version).

And the reason why you'd use it for something like this is that it
lets you upstream patches (which change dependencies) in a reasonably
clean way.

Clearly a downstream distro can instead maintain patches, but we
encourage upstreaming in general and this mechanism allows that. 

Principal hats:  Linaro, Debian, Wookware, ARM

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