[MacPorts] #50709: port:opencv+qt4 uses Qt5 if both Qt4 and Qt5 are installed

[MacPorts]

#50709: port:opencv+qt4 uses Qt5 if both Qt4 and Qt5 are installed
-------------------------+--------------------------------
 Reporter:  rjvbertin@…  |      Owner:  macports-tickets@…
     Type:  defect       |     Status:  new
 Priority:  Normal       |  Milestone:
Component:  ports        |    Version:  2.3.4
 Keywords:               |       Port:  opencv
-------------------------+--------------------------------
 The venom is all in the title: installing port:opencv with a Qt4 gui isn't
 possible currently if Qt5 is installed.
 I have encountered this kind of situation in other ports: a CMake file
 somewhere simply prefers Qt5 over Qt4 if the former version is available.
 The +qt4 variant thus requires a patch to that CMake file, to force it to
 consider only Qt4.

-- 
Ticket URL: <https://trac.macports.org/ticket/50709>
MacPorts <https://www.macports.org/>
Ports system for OS X