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Re: Native Win32 compiling... strange error

This one will go away if you define _M_IX86 on the command line. This is a MS-specific pre-defined macro in a set that identifies the target platform.

-- Matthew Brown

----- Original Message ----- 
From: "Joe Kraska" <>
To: <>
Sent: Tuesday, January 18, 2000 3:26 PM
Subject: Native Win32 compiling... strange error

> Hi. Well, I read the fact and searched the archives the best I knew 
> how. Here's what I'm trying to do:
> Using the b20 standard release, I am attempting to compile a native 
> windows application with gcc. The include files I am using are 
> the ones in Microsoft's own SDK, and I am expecting to link 
> with the libs there as well. I am, in fact, attempting to compile 
> the "Brouhahah" example from (chapter 13?) _Inside Direct X_.
> Here is, literally, what happens:
> jkraska% gnumake --unix 
> mkdir -p ./WIN98 
> gcc -c -mno-cygwin -mwindows -g -I/g/sdk/Include -DNT brouhaha.C -o 
> WIN98/brouhaha.o 
> In file included from \g\sdk\Include\windef.h:166, 
> from \g\sdk\Include\windows.h:171, 
> from brouhaha.h:6, 
> from brouhaha.C:1: 
> \g\sdk\Include\winnt.h:705: #error Must define a target architecture. 
> make: *** [WIN98/brouhaha.o] Error 1
> Some clarification: "brouhaha.h" is the first file included by 
> "brouhaha.C". "windows.h" is the first file included by "brouhaha.h". 
> I'm unclear why what happens next happens. Obviously "winnt.h" is 
> being included and a preprocessor #if/else combination is not happy. 
> I am compiling under Windows 98, so I'm unclear why "winnt.h" is 
> being included, but I am assuming right now that it's normal and 
> somehow related to portability. But the failure to find a define 
> is not normal, so am I doing something wrong???
> Does anyone know?
> It appears that winnt.h expects a #define to have been
> #defined. It's a bit irregular that I should be expected to do
> this myself, however, so I'm worried that I'm not invoking
> the compiler correctly.
> Joe Kraska 
> San Diego 
> CA
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