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Date:	Wed, 5 Jul 2000 19:46:51 -0400
From:	Chris Faylor <cgf AT cygnus DOT com>
To:	cygwin-developers AT sourceware DOT cygnus DOT com
Subject:	Re: _impure_ptr uninitialized in DLLs?
Message-ID:	<20000705194651.A16474@cygnus.com>
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References:	<779F20BCCE5AD31186A50008C75D9979171740 AT silldn_mail1 DOT sanwaint DOT com> <20000705140542 DOT A7151 AT cygnus DOT com>
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In-Reply-To:	<20000705140542.A7151@cygnus.com>; from cgf@cygnus.com on Wed, Jul 05, 2000 at 02:05:42PM -0400

On Wed, Jul 05, 2000 at 02:05:42PM -0400, Chris Faylor wrote:
>On Wed, Jul 05, 2000 at 12:50:29PM +0100, Fifer, Eric wrote:
>>Starting with the Jul-01 snapshot, something changed with the handling
>>of _impure_ptr so that within a newly compiled DLL its value is NULL.
>>Previously compiled DLLs continue to work.  Presumably this is related
>>to the restructuring of user_data.
>>
>>I'll try to hunt down the problem, but thought I should report it in
>>the meantime.
>
>I see the problem.  I don't know how to solve it yet but I'm
>working on it.
>
>I'm glad that you found this.  If we'd released a version of the Cygwin
>DLL with this problem there would have been hell-to-pay.

I've checked in a fix for this.  It was pretty tricky.  Let's see if I
actually got it right.

cgf

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