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Subject: Re: gcc macros
To: freebsd-questions@freebsd.org
References: <565A73C6.4090306@hiwaay.net> <565AD143.8040301@FreeBSD.org>
From: "William A. Mahaffey III" <wam@hiwaay.net>
Message-ID: <565B1248.80509@hiwaay.net>
Date: Sun, 29 Nov 2015 09:02:42 -0553.75
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On 11/29/15 04:26, Matthew Seaman wrote:
> On 29/11/2015 03:39, William A. Mahaffey III wrote:
>> I use the Intel compiler suite (icc & ifort) to maintain some inhouse
>> code under Linux. The man pages for icc clearly list all macros defined
>> &/or used by icc in one neat section. I have yet to locate such a
>> listing for macros under gcc's under FreeBSD 9.3R (gcc48, gcc49 & gcc5).
>> Is there such a listing documented somewhere, & if so where ? TIA & have
>> a good one ....
> Try:
>
>    cc -dM -E - < /dev/null
>
> which will print all of the pre-processor definitions used by the
> compiler.   You can add other flags like eg.  --std=c89 if you like.
>
> 	Cheers,
>
> 	Matthew


*Booooyah*, worked like a champ, *thanks* :-) !!!!


-- 

	William A. Mahaffey III

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