[MacPorts] #56534: py-protobuf, py-protobuf3: builds extension in destroot phase

[MacPorts]

#56534: py-protobuf, py-protobuf3: builds extension in destroot phase
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  Reporter:  ryandesign                |      Owner:  tobypeterson
      Type:  defect                    |     Status:  closed
  Priority:  Normal                    |  Milestone:
 Component:  ports                     |    Version:
Resolution:  fixed                     |   Keywords:
      Port:  py-protobuf py-protobuf3  |
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Comment (by tobypeterson):

 Now also passing `--cpp_implementation` during build. It's still needed
 during other phases to ensure that the built C++ extension is actually
 installed/tested.

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Ticket URL: <https://trac.macports.org/ticket/56534#comment:8>
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