[MacPorts] #47994: gnuplot +qt5: build failure

[MacPorts]

#47994: gnuplot +qt5: build failure
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  Reporter:  jinxiaoyong@…  |      Owner:  mojca@…
      Type:  defect         |     Status:  new
  Priority:  Normal         |  Milestone:
 Component:  ports          |    Version:
Resolution:                 |   Keywords:
      Port:  gnuplot        |
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Comment (by mojca@…):

 OK, so basically this seems to be a problem with existing `qt4-mac`
 installation (which is a problem you don't have because you likely don't
 have `qt4-mac` installed).

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Ticket URL: <https://trac.macports.org/ticket/47994#comment:4>
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