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Message-ID:	<39918E3A.469B1230@ece.gatech.edu>
Date:	Wed, 09 Aug 2000 13:00:42 -0400
From:	Charles Wilson <cwilson AT ece DOT gatech DOT edu>
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To:	GRENON Richard <Richard DOT Grenon AT onera DOT fr>
CC:	cygwin AT sourceware DOT cygnus DOT com
Subject:	Re: Problems with Libtiff, Libpng
References:	<39911A7A DOT D5611ABA AT onera DOT fr> <39916B03 DOT E4EED9AC AT ece DOT gatech DOT edu> <39917A45 DOT 7F09F1F6 AT onera DOT fr>

GRENON Richard wrote:

> In the OpenDX case, no custom libpng.dll was included in the package so
> it should use the Cygwin 'official' one. Could it be a problem for other
> applications if I keep libpng-1.0.6 with my recent Cygwin 1.1.4 update
> instead of latest libpng-1.0.8 ? Until now, I did only home work with
> some simple fortran codes, OpenDX and an old personal Unix X11 graphic
> code. Everything seems to work well (except some Win98 crashes with X11)
> and as I am not on a network and don't need any Cygwin advanced feature
> I would like to maintain this installation "as is" for a long time.

I see no problem with that. *So far*, no other packages have been
released that depend on libpng -- so it shouldn't really matter WHAT
version you have.  The changes from -1.0.6 to -1.0.8 were:

1) revert a change that had caused a compatibility problem
   --> doesn't apply because you have no apps (other than OpenDX) that
depend on libpng

2) fix a bunch of problems w.r.t. assembly language acceleration
   --> doesn't apply because neither my 1.0.6 libpng package nor my
1.0.8 package included any of the assembly stuff.

3) Other minor fixes.

So, if what you have is working, stay with it. For now.

--Chuck

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