[yocto] Check IMAGE_FEATURES content in recipe

[Marcelo E. Magallon]

On Thu, May 10, 2018 at 10:22:34AM +0100, Burton, Ross wrote:

>$ bitbake image-foo image-bar
>
>image-foo and image-bar both contain recipe-flob.  recipe-flob will be
>built *once* to generate the packages, and those packages used to build
>both images.  If image-foo is read-only and image-bar is read/write, the
>*same packages* will be reused.  recipe-flob has no idea that foo is
>read-only and bar is read/write because the IMAGE_FEATURES assignments are
>specific to those image recipes.

When dealing with a somewhat similar problem, what I've done is 
that my-recipe.bb generates two packages (my-package-a, 
my-package-b) and the images select which of the two packages 
they want to use.

Marcelo