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SubjectRe: [PATCH -next 2/2] kbuild: fix for updated LZ4 tool with the new streaming format
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Borislav, All,

On Tuesday 16 July 2013 11:38:20 Borislav Petkov wrote:
> On Tue, Jul 16, 2013 at 11:32:39AM +0200, Yann E. MORIN wrote:
> > That does not work in two cases:
> > - older distros that do not have the tool packaged
>
> This point is moot - distro kernels are built by the distro people.

It's not about building distro kernels. It's about building the current
kernel on a distro, for example for cross-compilation.

> > - automatic test-harness that run thousands of randconfig a day
> randconfigs are not guaranteed to build successfully.

Well, mostly agreed. However, there was a request (in this thread) that
using such new tools that are not yet widely available in distros, does
not break randconfig.

This is a *new* requirement.

> > The idea is to be always have a .config that is buildable with the
> > current toolset of the system, especially for esoteric and/or recent
> > tools that are not packaged and/or installed by default by the
> > distros.
> How are you going to tell the user running make <something>config to
> install the missing tools?

As discussed with Florian in this thread, either one of:
- a warning at check time
- a comment in Kconfig

which both are easy enough to achieve. As I said earlier in this thread,
I've been using a similar scheme in crosstool-NG (which uses Kconfig as
its configuration infrastructure), and it has been proven effective
over the past feew years.

Regards,
Yann E. MORIN.

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