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Date:      Wed, 02 Aug 2006 09:42:09 -0400
From:      Chuck Swiger <cswiger@mac.com>
To:        Lorin Lund <wbs@infowest.com>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: gcc: cpp pre-defined variables
Message-ID:  <44D0ABB1.9070307@mac.com>
In-Reply-To: <44D06735.40603@infowest.com>
References:  <ef10de9a0608011723y770687f7me0b4cacd176fe4d1@mail.gmail.com> <44D06735.40603@infowest.com>

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Lorin Lund wrote:
> How can I find all the variables that are pre-defined in the pre-processor.
> 
> Do these come from a configuration file? Or are the compiled in to cpp when
> it is ported to a platform?

Something like:

	touch test.h; cpp -dM test.h

...will show you all of the predefined macros.  These are compiled into the 
compiler when the toolchain is built.

-- 
-Chuck



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