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Date: Wed, 2 May 2001 00:01:13 -0400
From: Christopher Faylor <cgf AT redhat DOT com>
To: cygwin-apps AT cygwin DOT com
Subject: Re: gcc/ansi question
Message-ID: <20010502000113.B26891@redhat.com>
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References: <20010501231814 DOT A26391 AT redhat DOT com> <3AEF8437 DOT DD541895 AT ece DOT gatech DOT edu>
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In-Reply-To: <3AEF8437.DD541895@ece.gatech.edu>; from cwilson@ece.gatech.edu on Tue, May 01, 2001 at 11:51:19PM -0400

On Tue, May 01, 2001 at 11:51:19PM -0400, Charles S. Wilson wrote:
>Christopher Faylor wrote:
>> 
>> It has been pointed out to me that I shouldn't be doing -Dunix when
>> using the -ansi switch with gcc because the compiler should only define
>> things which begin with an underscore.  I can fix this easily.
>> 
>> Does anyone know how MSVC handles the WIN32 definitions?  Is there an
>> equivalent switch for Windows which disables the definition of WIN32?
>> My MSVC installation is currently hosed for some reason so I can't check
>> this myself.
>
>/Usymbol undefines a specific symbol
>/u (lowercase u) turns off every previously defined symbol
>
>"Neither of these options can be used to undefine symbols created with
>the #define directive. Both options turn off the following
>Microsoft-specific macros:"
>
>_CHAR_UNSIGNED
>_CPPRTTI
>_CPPUNWIND
>_DLL
>_M_IX86
>_MSC_VER
>_WIN32
>_MT
>
>Seems kinda wierd to me that -Ufoobar will also cause _WIN32 to become
>undefined, but that's what the docs say.

Is there anything like a strict-ansi option?  Or, doesn't msvc define
anything without an underscore?  I wonder if gcc is just wrong in defining
WIN32 and WINNT.

cgf