[MacPorts] #65903: pg python: check for files installed to ${python.prefix}, and fail build if any present

[MacPorts]

#65903: pg python: check for files installed to ${python.prefix}, and fail build if
any present
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  Reporter:  mascguy  |      Owner:  mascguy
      Type:  defect   |     Status:  assigned
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:  2.7.2
Resolution:           |   Keywords:  portgroup
      Port:           |
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Comment (by jmroot):

 I don't think this is really worth checking for. The mtree checks in base
 already detect if you're installing files completely outside the usual
 places. Ideally maintainers notice if ports are installing things in
 slightly weird places and fix it, but if nobody notices, it's likely not a
 problem. When someone does notice, like you did with these two ports, you
 fix it.

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Ticket URL: <https://trac.macports.org/ticket/65903#comment:9>
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