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

[MacPorts]

#51310: ImageMagick: update to 7.x
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  Reporter:  mopihopi     |      Owner:  ryandesign
      Type:  update       |     Status:  assigned
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:
Resolution:               |   Keywords:
      Port:  ImageMagick  |
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Comment (by joostdekeijzer):

 Hi all,

 After updating macports I was busy with updating my PR and I found the
 following issue:

 ImageMagick creates a shellscript `MagickWand-config` (in my PR it's in
 `/opt/local/lib/ImageMagick-7/bin/MagickWand-config`). This script is used
 in eg. the php80-imagick  build code to find the ImageMagick libraries.

 Problem is that (somehow?) the `PKG_CONFIG_PATH` environment variable is
 not available in/for this script. Thus the compiler won't find the
 ImageMagick libraries.

 This issue also exists when I try to compile outside Macports.

 For now, I guess this means that ImageMagick expects and only allows its
 libraries to reside in their default locations.

 So it will be useless to try and support both versions of ImageMagick in
 separate locations (for now?).

 That said: I would **really** like to be able to easily use ImageMagick 7.
 Can't we just update the current ImageMagick port to v7? Please?

-- 
Ticket URL: <https://trac.macports.org/ticket/51310#comment:57>
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