[MacPorts] #51310: ImageMagick: update to 7.x

[MacPorts]

#51310: ImageMagick: update to 7.x
--------------------------+------------------------
  Reporter:  mopihopi     |      Owner:  ryandesign
      Type:  update       |     Status:  assigned
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:
Resolution:               |   Keywords:
      Port:  ImageMagick  |
--------------------------+------------------------

Comment (by josephsacco):

 FWIW...  openCL under MacOS was deprecated in macOS 10.14:

       OpenCL was deprecated in macOS 10.14. To create high-performance
 code on GPUs, use the Metal framework instead.

 -Joseph

-- 
Ticket URL: <https://trac.macports.org/ticket/51310#comment:50>
MacPorts <https://www.macports.org/>
Ports system for macOS