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Message-ID: | <3AEF8437.DD541895@ece.gatech.edu> |
Date: | Tue, 01 May 2001 23:51:19 -0400 |
From: | "Charles S. Wilson" <cwilson AT ece DOT gatech DOT edu> |
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To: | cygwin-apps AT cygwin DOT com |
Subject: | Re: gcc/ansi question |
References: | <20010501231814 DOT A26391 AT redhat DOT com> |
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. --Chuck
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