Question about the OPTIONS system

[Miguel Mendez]

Hi,

I want to OPTIONS-ize some of my ports. However, I haven't seen anywhere
how to set exclusive OPTIONS. For example, the user may choose WITH_A or
WITH_B, but not both. Is there a way to accomplish that without checking
inside the Makefile?

TIA,
-- 
	Miguel Mendez <flynn at energyhq.es.eu.org>
	http://www.energyhq.es.eu.org
	PGP Key: 0xDC8514F1

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