[MacPorts] #47025: poppler: add Qt5 subport and optional test support.

[MacPorts]

#47025: poppler: add Qt5 subport and optional test support.
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  Reporter:  rjvbertin@…  |      Owner:  devans@…
      Type:  enhancement  |     Status:  assigned
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:
Resolution:               |   Keywords:  haspatch
      Port:  poppler      |
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Comment (by rjvbertin@…):

 This should bring back my Qt5 subport.

 Rick, could you indicated where the Qt5 headers are installed that aren't
 found? Maybe we can introduce some glue so that things build also with the
 current port:qt5-mac?

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Ticket URL: <https://trac.macports.org/ticket/47025#comment:20>
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