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Re: what defines do I look for?

On Tuesday, March 12, 2002, at 09:53 AM, Benjamin Reed wrote:
Peter O'Gorman [email@hidden] wrote: 
Define _DARWIN_ somewhere in the Makefile, or stick with _APPLE_...

Look at the output of
cc -v -E /dev/null

to see what defines you have to play with. 

Ahh, that helps, thanks.

Looking at them, perhaps it's better to do:

#if (defined(__APPLE__) && defined(__MACH__))

Making broad generalizations about what is included in an Apple-developed, Mach-based, system is probably not what you want.

You should stick to the specifics. In other words, if you are trying to deal with non-existence of say, poll(2), on the system, then ifdef specifically for that. Try not to paint such a broad brush, as the specifics will change (but __APPLE__ and __MACH__ will not).

--Jim
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References: 
 >Re: what defines do I look for? (From: Benjamin Reed <email@hidden>)



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