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From:	"Robert Collins" <robert DOT collins AT itdomain DOT com DOT au>
To:	"'Sven Sandberg'" <svsa1977 AT student DOT uu DOT se>, <cygwin AT cygwin DOT com>
Subject:	RE: direct.h + pthreads
Date:	Wed, 29 May 2002 08:45:20 +1000
Message-ID:	<000201c20699$58cf51a0$0200a8c0@lifelesswks>
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X-OriginalArrivalTime:	28 May 2002 22:45:18.0068 (UTC) FILETIME=[5716F340:01C20699]

> -----Original Message-----
> From: cygwin-owner AT cygwin DOT com 
> [mailto:cygwin-owner AT cygwin DOT com] On Behalf Of Sven Sandberg
> Sent: Wednesday, 29 May 2002 8:43 AM
> To: cygwin AT cygwin DOT com
> Subject: Re: direct.h + pthreads
> 
> 
> egor duda wrote:
> > You're trying to mix two unmixable things. I'll try to explain what
> > -mno-cygwin flag does and hope it will help you answer all those
> > questions yourself.
> 
> Thank you for explaining, that makes sense.
> 
> > One shouldn't mix headers and libraries for different platforms
> 
> You can actually mix dlls and programs compiled with MinGW32, Borland
> C++ Builder, and MSVC freely if you do it correctly. Is it strictly
> impossible to mix these with Cygwin, or just tricky? Is it possible if
> I'm allowed to modify headers?

You can only mix DLL's that follow the same rules for:
Structure alignment
C runtime
Exception handling

And do not contain C++. 

Libpthread.a is a cygwin1.dll alias. This means that you are trying to
break the C++ rule, the C runtime rule, the exception handling rule and
the Structure alignment rule all at once.

Rob


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