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Message-Id:	<199906072205.RAA03796@mercury.xraylith.wisc.edu>
To:	JSONCRAIG AT aol DOT com
cc:	cygwin AT sourceware DOT cygnus DOT com
Subject:	Re: COM problem
In-Reply-To:	Your message of "Mon, 07 Jun 1999 18:26:54 EDT."
	<69153b1e DOT 248da12e AT aol DOT com>
Date:	Mon, 07 Jun 1999 17:05:41 -0500
From:	Mumit Khan <khan AT xraylith DOT wisc DOT EDU>

JSONCRAIG AT aol DOT com writes:
> I am trying to compile a COM program and I get the following message when I 
> am compiling:
> 
> "In file included from 
> C:\\EGCS\\BIN\\..\\lib\\gcc-lib\\i386-mingw32\\egcs-2.91.66\\..\\..\\..\\..\\
> i
> 386-mingw32\\include\\objbase.h:49, from JasCmpnt.cpp:2:  
> C:\\EGCS\\BIN\\..\\lib\\gcc-lib\\i386-mingw32\\egcs-2.91.66\\..\\..\\..\\..\\
> i
> 386-mingw32\\include\\unknwn.h:23: warning: `comobject' attribute directive 
> ignore
> d"
> 
> which is then repeated multiple times...the program then links and it appears
>  
> to work fine but I'm not sure if it is working fine.  Is there a rememdy and 
> if so what?
> 
> I am using the Mingw32 egcs-1.1.2 release, with w32api-0.1.5 by Anders 
> Norlander installed.  Thanks in advance for the help.
> 

The comobject patch is not integrated in egcs-1.1.2, but I'm hoping it'll
be in the next release (gcc-2.95). Jason Merrill, co-maintainer of the
C++ front-end, has checked in some of the comobject patches, so most of
the needed stuff is already there.

There will still be problems however. To use the comobject, you'll need
to specify -fvtable-thunks, and that means all the libraries linked against
it will also need to be compiled with -fvtable-thunks.

I haven't had any time recently to work on egcs/cygwin/mingw etc, but I'll
start taking a look hopefully next week when my schedule becomes a bit
more managable.

Regards,
Mumit


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