[OE-core] ALLOW_EMPTY versus ALLOW_EMPTY_${PN}? a couple clarifications

[Richard Purdie]

On Fri, 2012-07-06 at 09:10 -0400, Robert P. J. Day wrote:
>   just trying to clarify the gory details of the ALLOW_EMPTY setting.
> first, across several .bb files, there is a mixture of these two:
> 
> ALLOW_EMPTY = "1"
> ALLOW_EMPTY_${PN} = "1"
> 
>   what's the difference?  what does the first one represent if you're
> not specific?  does that cover *all* generated packages?

FWIW, a package name should generally be specified. I've just sent a
patch to OE-Core updating the various references.

Cheers,

Richard