[MacPorts] #51619: qt5.depends_component procedure

[MacPorts]

#51619: qt5.depends_component procedure
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  Reporter:  RJVB          |      Owner:  mkae
      Type:  enhancement   |     Status:  assigned
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:
Resolution:                |   Keywords:
      Port:  qt5, qt5-kde  |
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Comment (by mojca):

 One warning. If ports can declare dependency on different versions of Qt
 (Qt 5.5 or 5.6 or dev or KDE or whatever ...) then the PortGroup needs to
 provide a way to automatically generate variants as well, otherwise there
 will be troubles with ABI compatilibility when users decide to switch to a
 different version of Qt.

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Ticket URL: <https://trac.macports.org/ticket/51619#comment:10>
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