[MacPorts] #62742: opencv4, pyX-opencv4 : Fails to build if opencv port is installed

[MacPorts]

#62742: opencv4, pyX-opencv4 : Fails to build if opencv port is installed
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  Reporter:  cjones051073          |      Owner:  stromnov
      Type:  defect                |     Status:  assigned
  Priority:  Normal                |  Milestone:
 Component:  ports                 |    Version:
Resolution:                        |   Keywords:
      Port:  opencv4 py38-opencv4  |
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Comment (by mascguy):

 Of note, most folks never encounter this, as a binary install doesn't have
 this problem. So unless folks either a) install `opencv4` with variants
 enabled, forcing a source build; or b) happen to update their ports before
 the latest binary is built (perhaps your case?), this isn't a wide-spread
 issue.

 If you don't need any variants, you can simply reinstall `opencv4`
 manually, and a binary will be pulled. (It looks like binaries have been
 built for everything but Big Sur ARM. So as along as you're not running on
 an M1 Mac, that'll work.)

 That being said, if you want to update `openimageio`, I'd appreciate it!

-- 
Ticket URL: <https://trac.macports.org/ticket/62742#comment:6>
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