[MacPorts] #54535: New port: polyclipping

[MacPorts]

#54535: New port: polyclipping
---------------------------+-------------------
  Reporter:  sikmir        |      Owner:
      Type:  submission    |     Status:  new
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:  2.4.1
Resolution:                |   Keywords:
      Port:  polyclipping  |
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Comment (by raimue):

 Thank you for your submission. Here are a few improvements that should be
 applied before adding this to the ports tree:

 * Use `master_sites sourceforge` to include all known mirrors (equivalent
 to `sourceforge:polyclipping` as the port name is the same as the
 project).
 * For the Boost Software License 1.0, please use `license Boost-1`.

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Ticket URL: <https://trac.macports.org/ticket/54535#comment:1>
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