Re: [docs] more docs curiosity: "inherit_defer" in the BB manual

[Richard Purdie <richard.purdie@linuxfoundation.org>]

On Wed, 2025-07-09 at 09:31 -0400, Robert P. J. Day via
lists.yoctoproject.org wrote:
> 
> here:
> 
> https://docs.yoctoproject.org/bitbake/2.12/bitbake-user-manual/bitbake-user-manual-metadata.html#inherit-defer-directive
> 
> that section strongly suggests that the sole reason to use
> "inherit_defer" is that you want to inherit some class, but you're
> not
> sure which class *yet*, so you use a variable that will, at some
> point, be set before parsing is complete. or possibly it will involve
> a programmatic condition.
> 
>   so what is the purpose of using "inherit_defer" on a fixed bbclass
> name such as this?
> 
> https://git.openembedded.org/openembedded-core/tree/meta/recipes-devtools/qemu/qemu-native.inc#n3
> 
> what is the rationale of inherit_defer'ing a fixed class name? or is
> there more to this that i'm missing?

native has to be last. That means it has to be deferred.

I think bitbake now happens to handle this magically after more recent
changes, just to complicate the story.

Cheers,

Richard