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content-class:	urn:content-classes:message
Subject:	RE: [ANNOUNCEMENT]: Important change to symbolic link functionality
MIME-Version:	1.0
Date:	Thu, 22 Feb 2001 17:19:43 +1100
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Message-ID:	<EA18B9FA0FE4194AA2B4CDB91F73C0EF02E1F5@itdomain002.itdomain.net.au>
Thread-Topic:	[ANNOUNCEMENT]: Important change to symbolic link functionality
Thread-Index:	AcCclqCw1tpCnjw/R5CjTvR4Ssq/vwAAFgAA
From:	"Robert Collins" <robert DOT collins AT itdomain DOT com DOT au>
To:	<cygwin AT cygwin DOT com>
X-MIME-Autoconverted:	from quoted-printable to 8bit by delorie.com id BAA32724

There's nothing wrong with it. In fact I expect that Chris et al. will
change the filename in accordance with the dll naming conventions
painfully hammered out here about 6 months ago.

The issue being that windows doesn't support symlinked .dll's, so the
filename cannot change like it does on unix.

The results were (from memory):
Change the library major version number on ABI changes.
Change the library minor version number on internal changes/header files
changes with the same ABI.
The library name is library<major version>.

So when the cygwin ABI changes in a non backwards compatible way, I
expect that the library will become version 2.x.x, and the filename
cygwin2.dll


Rob




> -----Original Message-----
> From: Warren Young [mailto:warren AT etr-usa DOT com]
> Sent: Thursday, February 22, 2001 5:19 PM
> To: cygwin AT cygwin DOT com
> Subject: Re: [ANNOUNCEMENT]: Important change to symbolic link
> functionality
> 
> 
> Christopher Faylor wrote:
> > 
> > There is no "binary compatibility change".  Cygwin still 
> recognizes the
> > old symlinks.  It just doesn't create them.
> 
> I know, but this message reminded me of the issue.  It seems 
> to me that
> the DLL filename should change every time the ABI changes.  
> What's wrong
> with that proposal?
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