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Message-ID:	<51630442.4080805@cwilson.fastmail.fm>
Date:	Mon, 08 Apr 2013 13:54:10 -0400
From:	Charles Wilson <cygwin AT cwilson DOT fastmail DOT fm>
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To:	cygwin AT cygwin DOT com
Subject:	Re: Bug in ddk headers when used from cygwin
References:	<51625CAE DOT 2030703 AT cwilson DOT fastmail DOT fm> <20130408074801 DOT GA10199 AT calimero DOT vinschen DOT de>
In-Reply-To:	<20130408074801.GA10199@calimero.vinschen.de>

On 4/8/2013 3:48 AM, Corinna Vinschen wrote:
> On Apr  8 01:59, Charles Wilson wrote:
>> Any suggestions for a fix?
>
> Yes.  Do not use the ddk headers with Cygwin.  Not only that intrin.h is
> really missing(*), the ddk headers in mingw-w64 are not fit for usage in
> user space code.  For that reason the latest Cygwin code does not use
> these headers either.
>
> There are two user space headers exposing ntdll stuff, winternl.h and
> ntdef.h.  They partially contradict each other so they can't be used in
> parallel.  Usage of winternl.h is preferred.  Wintern.h isn't exactly
> set in stone upstream, so additions and fixes are welcome.
> And, as a side note, <ddk/ntstatus.h> from mingw32 became just
> <ntstatus.h> in mingw-w64.

OK, I'll try to figure out what getVolInfo was using from ddk, and see 
if I can replicate the functionality with pure w32api non-ddk stuff. 
I'll also have to ask the original developer what she was thinking, 
relying on ddk internals... :-)

But doesn't this mean that the cygwin's w32api package should exclude 
all of the ddk headers; it's not simply a case that you "shouldn't" use 
ddk/*.h, but that you actually cannot, because compilation will fail.

--
Chuck



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