[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 jmroot):

 Replying to [comment:12 mouse07410]:
 > Also, if it's a legitimate dependency - how about either upgrading it
 to, e.g., clang-13, or making it __accept__ whatever Macports clang is
 installed if it's 9.0 or newer?

 The opencv3 port doesn't make the decision of which specific compiler to
 use, it just asks for C++11 and openmp 4.0 support and base chooses a
 compiler that meets those requirements.

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Ticket URL: <https://trac.macports.org/ticket/64353#comment:14>
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