[OE-core] inheirt multi bbclass using variable

[Khem Raj]

On Sun, Dec 11, 2011 at 4:13 PM, McClintock Matthew-B29882
<B29882 at freescale.com> wrote:
>
> To clarify, my case was more like this:
>
> IMAGE_EXTRA_CLASSES = "${SOME_CFG_VAR}"
> inherit some_class.bbclass ${IMAGE_EXTRA_CLASSES}

I think you are expecting C like behavour where variables/macros are
expanded before keywords