Re: kbuild: shorthand ym2y, ym2m etc

[Christoph Hellwig]

> We have in several cases the need to transpose a i'm' to 'y' in the Kbuild
> files.
> One example is the following snippet from sound/Makefile:
> ifeq ($(CONFIG_SND),y)
>   obj-y += last.o
> endif
> 
> Alternative syntax could be:
> obj-$(call y2y,CONFIG_SND) += last.o

This should go away with either syntax, and I don't think yours is much
cleaner..

> ifeq ($(CONFIG_FB),y)
>   obj-$(CONFIG_PPC)                 += macmodes.o
> endif
> 
> Altetnative syntax:
> obj-$(call yx2x,CONFIG_FB,CONFIG_PPC) += mcmodes.o

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

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