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Date: Tue, 23 Jun 2020 15:03:15 +0200
From: Markus Hoenicka <markus.hoenicka@mhoenicka.de>
To: cygwin@cygwin.com
Subject: Re: ImageMagick maybe broken by libgs9 upgrade
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On 2020-06-23 14:15, Ken Brown via Cygwin was heard to say:
> On 6/23/2020 7:27 AM, Ken Brown via Cygwin wrote:
>> On 6/22/2020 9:37 PM, Emily via Cygwin wrote:
>>> I use ImageMagick to convert and crop shipping labels from PDFs 
>>> generated by Ebay.  On 6/8, this command worked:
>>> 
>>> $ convert -density 300 -crop 1500x1200 label.pdf label.png
>>> Aborted (core dumped)
>>> 
>>> 
>>> The command still runs on PDFs that were not generated by Ebay, but I 
>>> get the same error on old Ebay PDF files (from 6/8 and earlier) that 
>>> previously converted and cropped without problems.
>>> 
>>> 
>>> This is in my /var/log/setup.log:
>>> 
>>> 2020/06/09 19:52:15   29 install libgs9                9.52-2
>>> 2020/06/09 19:52:15   30   erase libgs9                9.27-2
>>> 
>>> 
>>> Cropping in a separate step after converting to PNG still works:
>>> 
>>> $ convert -density 300 label.pdf temp.png
>>> $ convert -crop 1500x1200 temp.png label.png
>>> 
>>> 
>>> But in case other ImageMagick functionality is also broken, this 
>>> isn't a permanent solution.  I tried to downgrade libgs9, but 9.27 is 
>>> no longer an option in setup, even after I added another mirror.
>> 
>> Please provide a sample label.pdf for which you're seeing this 
>> behavior.
> 
> You could also try adding the '-verbose' option to your command line
> to see if that gives a clue.
> 
> Ken

Hi,

I don't know whether this helps to track down the problem, but here goes 
anyway: I see the same crash with .ps and .eps files (unsurprisingly, as 
these and .pdf are processed by libgs). The same conversions work with 
"gm convert" from the GraphicsMagick package. gm is not linked against 
libgs, but seems to invoke the gs executable instead. This does not 
crash, although it is linked against the very same libgs.

regards,
Markus

-- 
Markus Hoenicka
http://www.mhoenicka.de
AQ score 38
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