[MacPorts] #69653: mkvtoolnix-legacy: support Qt4 where Qt5 unavailable

[MacPorts]

#69653: mkvtoolnix-legacy: support Qt4 where Qt5 unavailable
--------------------------------+-----------------------------------------
  Reporter:  barracuda156       |      Owner:  (none)
      Type:  defect             |     Status:  new
  Priority:  Normal             |  Milestone:
 Component:  ports              |    Version:  2.9.2
Resolution:                     |   Keywords:  snowleopard, leopard, tiger
      Port:  mkvtoolnix-legacy  |
--------------------------------+-----------------------------------------

Comment (by i0ntempest):

 Supporting older qt5 versions requires older versions (like the current
 mkvtoolnix port), which I am planning to do later. But I don't think this
 port ever supported qt4.

-- 
Ticket URL: <https://trac.macports.org/ticket/69653#comment:1>
MacPorts <https://www.macports.org/>
Ports system for macOS