[MacPorts] #38134: ImageMagick: update to latest version

[MacPorts]

#38134: ImageMagick: update to latest version
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  Reporter:  david@…      |      Owner:  ryandesign@…
      Type:  update       |     Status:  assigned
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:  2.1.3
Resolution:               |   Keywords:  haspatch
      Port:  ImageMagick  |
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Comment (by ryandesign@…):

 php-imagick doesn't build against 6.8.3-6 either. Seems that ImageMagick
 changed where the headers are located, so projects like php-imagick that
 hardcode where they look for the ImageMagick header fail:
 http://studio.imagemagick.org/discourse-server/viewtopic.php?f=3&t=22887

 The fix is to ask ImageMagick where the headers are. But 6.8.3-6 has a bug
 where if you ask it where the headers are, it tells you the wrong answer:
 http://www.imagemagick.org/discourse-server/viewtopic.php?f=4&t=22858

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Ticket URL: <https://trac.macports.org/ticket/38134#comment:7>
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