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Date: Wed, 18 Feb 2009 17:17:38 +0000
From: Dave Korn <dave DOT korn DOT cygwin AT googlemail DOT com>
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To: cygwin AT cygwin DOT com
Subject: Re: libpng headaches!
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Larry Hall (Cygwin) wrote:
> David Karlgren wrote:
>> Hello dear Cygwin users, I hope I'm posting this to the right list. If
>> not, then I sincerely apologize!
>>
>> I'm programming a game using SDL and I compile with gcc under Cygwin
>> and link with the mingw libraries. 
> 
> So you're really using MinGW then.  The MinGW list would be the appropriate
> place to look for help with this problem.
> 

  And the problem is presumably caused by trying to use the Cygwin version of
libpng-devel, which will have references to functions supplied by the Cygwin
DLL, when linking against MinGW runtime libs, which don't supply the same set
of functions.

  The problem with "-lz" could probably be fixed by using the mingw-zlib
package, but David will need to find a proper MinGW build of libpng (or roll
his own).

    cheers,
      DaveK


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