[OE-core] [PATCH 0/2] Yocto Compatible 2.0 support code

[Patrick Ohly]

On Thu, 2017-06-08 at 15:33 +0100, Richard Purdie wrote:
> Patrick for example mentioned IMAGE_FEATURES. This one is fraught with
> problems since:
> 
> a) Its a recipe level setting so using it in a base configuration
> context would end badly

We cannot even rely on DISTRO_FEATURES in the middle of the base
configuration construction; basically conditional includes in the base
configuration are not reliable at all.

> b) Users change this in a variety of places some of which would be
> bitten by the immediate expansion problem even just in recipe context

I agree. The same had already occurred to me, with a slightly different
failure mode:

c) base image recipe does the conditional include based on
   IMAGE_FEATURES, bbappend is used to change IMAGE_FEATURES => include
   done based on something other than the final IMAGE_FEATURES

-- 
Best Regards, Patrick Ohly

The content of this message is my personal opinion only and although
I am an employee of Intel, the statements I make here in no way
represent Intel's position on the issue, nor am I authorized to speak
on behalf of Intel on this matter.