[MacPorts] #64353: opencv3 has undocumented dependencies

[MacPorts]

#64353: opencv3 has undocumented dependencies
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  Reporter:  mouse07410  |      Owner:  mascguy
      Type:  defect      |     Status:  assigned
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:
Resolution:              |   Keywords:
      Port:  opencv3     |
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Comment (by mouse07410):

 > Are you questioning why MacPorts is choosing to build this port with
 Clang 9...?

 Basically, yes.

 There are few ports (AFAIK) that require Macports-provided Clang (e.g., I
 might want opencv3 or whatever, but have and use only Xcode Clang).

 If a port does have a reason to insist on Macports Clang - first, it
 should be listed as a build dependency, and second - it should be updated
 to the current (or closer to current) version of Macports Clang. 9.0
 **is** old at this point.

-- 
Ticket URL: <https://trac.macports.org/ticket/64353#comment:4>
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