[Buildroot] Design issue with the out-of-tree support
Thomas Petazzoni
thomas.petazzoni at free-electrons.com
Mon May 27 19:12:00 UTC 2013
Dear Arnout Vandecappelle,
On Mon, 27 May 2013 18:50:54 +0200, Arnout Vandecappelle wrote:
> I haven't read the thread in detail or thought about it very carefully,
> but some time ago I already thought that this would be better.
>
> It is not necessarily limited to autoreconf. For example, the way that
> xenomai patches the linux sources fits in this as well (xenomai could add
> to LINUX_POST_AUTORECONF_HOOKS).
>
> So I would propose to add another step to the generic infrastructure. I
> would call it the PREPARE step, and make it a full step with CMDS and HOOKS.
Indeed. For now, it's only has a CMDS and no HOOKS, but it could be
added later on.
> The question is whether the OVERRIDE_SRCDIR infrastructure should apply
> this step or not. Conceptually, it shouldn't, but that means that users
> of OVERRIDE_SRCDIR for packages that need an autoreconf would need to do
> the autoreconf manually. Which is probably for the best anyway, but which
> is a change compared to current behaviour.
For now, I consider doing the prepare step even on OVERRIDE_SRCDIR
package, even if that means that we are modifying the source directory.
> BTW the libtool fixup should probably be done in this prepare step as
> well. But again, I haven't thought this through in detail.
This is already done:
http://git.free-electrons.com/users/thomas-petazzoni/buildroot/commit/?h=out-of-tree-v3&id=5cf6166d713a43cdf83cdf794502eb77be36d43f
Thanks for the feedback!
Thomas
--
Thomas Petazzoni, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com
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