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Subject: Re: emacs-w32 not starting - missing dependency?
To: cygwin AT cygwin DOT com
References: <966a14c2-ee69-7d3d-800e-a4f9f62a3ec9 AT gmail DOT com> <b3b9e712-32d1-59ca-d549-9b461865a6a6 AT cornell DOT edu> <f9f0713e-b151-6716-e5ee-6225716d595e AT cornell DOT edu>
From: Ken Brown <kbrown AT cornell DOT edu>
Message-ID: <dc6c9caf-5227-c64f-8c67-6b3b9c5c85e8@cornell.edu>
Date: Fri, 19 Aug 2016 16:03:56 -0400
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On 8/19/2016 11:22 AM, Ken Brown wrote:
> On 8/19/2016 9:55 AM, Ken Brown wrote:
>> On 8/19/2016 6:27 AM, Peter Hull wrote:
>>> Hi all,
>>>
>>> When I type 'emacs' at the bash prompt, emacs does not start and the
>>> prompt re-appears very quickly as if nothing happened. 'emacs -Q' and
>>> 'emacs --version' do the same, nothing is printed.
>>>
>>> My alternatives are set such that emacs points to emacs-w32. I also have
>>> emacs-nox and that works fine.
>>>
>>> If I run 'strace emacs-w32' I get an error dialog:
>>>
>>> "The procedure entry point WebPDecode could not be located in the
>>> dynamic link library C:\cygwin\bin\cygMagickCore-6.Q16-2.dll."
>>
>>> Is this a known problem? If not I can attach cygcheck.out and the output
>>> from strace if that will help.
>>
>> It's not a known problem.
>
> It is now.  I can reproduce the problem (only on 32-bit Cygwin).  I'll
> look into it.

The problem turns out to be related to the recent update of libgd3. 
Reverting to the previous version fixes it.

Notice that cygMagickCore-6.Q16-2.dll, which occurs in the error dialog 
above, depends on cyggd-3.dll:

$ cygcheck /usr/bin/cygMagickCore-6.Q16-2.dll | grep cyggd-3
       C:\cygwin\bin\cyggd-3.dll

Marco, is it possible that the libgd3 update requires a rebuild of 
ImageMagick?

Ken




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