Re: kbuild: shorthand ym2y, ym2m etc

[Sam Ravnborg]

On Sun, Jan 30, 2005 at 07:52:30PM +0000, Christoph Hellwig wrote:
> 
> obj-$(CONFIG_FB)$(CONFIG_PPC)		+= macmodes.o
> 
> would be a lot more obvious, but I'm not sure how to handle
> it for the case where one of them evaluates to m

The real problem is when say CONFIG_FB are empty. Then kbuild will see:
obj-$(CONFIG_PPC) which I doubt was what you wanted.

This can be fixed by changing Kconfig to evaluate all known symbols to
either y,m,n - in contradiction to today where symbols that evaluate
to n is left empty.

	Sam
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