[MacPorts] #51975: qjson @0.8.1_1 Please add +qt5 variant

[MacPorts]

#51975: qjson @0.8.1_1 Please add +qt5 variant
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  Reporter:  macports@…   |      Owner:  macports-tickets@…
      Type:  enhancement  |     Status:  new
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:
Resolution:               |   Keywords:
      Port:  qjson        |
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Comment (by mf2k):

 I am looking at the port(s). We need to be able to tell the build system
 to use qt4 vs. qt5. Do you know the configure flags to switch it?

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Ticket URL: <https://trac.macports.org/ticket/51975#comment:16>
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