[yocto] bbappend a "required" bb file

[Allen Curtis]

> 
> 
> On Fri, Sep 25, 2015 at 10:15 AM, Allen Curtis <allen.curtis at curtisembedded.com> wrote:
>> I am working with a BSP that has multiple image recipes.
>> 
>> foo-hwbringup-image.bb
>> foo-qt5demo-image.bb
>> 
>> foo-qt5demo-image.bb contains "require foo-hwbringup-image.bb"
>> 
>> However if I create foo-hwbringup-image.bbappend, it gets ignored.
>> 
>> What are the rules with appending included recipes?
>> 
>> bbappends do not append arbitrary files, only recipes (and in this case, the inclusion treats them as an arbitrary file). They do not apply to anything included or required, only the recipe itself. So you'll need to bbappend every recipe that includes foo-hwbringup-image.bb in this case.
> 
> This is unfortunate since foo-hwbringup-image.bb is also a valid recipe. It just doesn't contain the graphics support.
> 
> Is there a better way to add your custom components to "core-image" I guess…..
> 
> You could always define custom features for use in IMAGE_FEATURES and add them to your images via EXTRA_IMAGE_FEATURES in local.conf, or bbappend one of the core images.

How is bbappend a core image different from bbappend foo-hwbringup-image?

If you follow the original post one more generation, foo-hwbringup-image.bb "inherit core-image"



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