[MacPorts] #44193: qt: allow side by side installation of qt4-mac and qt5-mac

[MacPorts]

#44193: qt: allow side by side installation of qt4-mac and qt5-mac
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  Reporter:  mojca@…           |      Owner:  mcalhoun@…
      Type:  enhancement       |     Status:  new
  Priority:  Normal            |  Milestone:
 Component:  ports             |    Version:
Resolution:                    |   Keywords:
      Port:  qt4-mac, qt5-mac  |
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Comment (by michaelld@…):

 Slowly making progress on updating qt4-mac dependent ports to work when
 qt4-mac is installed other than ${prefix}. Most require just a rev-bump,
 but some are stubborn, mostly because phonon is assumed to be part of Qt4
 but in MP it is not & the ports are not doing the right thing (by
 assuming, instead of checking via pkgconfig or whatever). When a rev-bump
 is not enough, I'll directly push updates to the port (if nomaintainer) or
 create a ticket (if owned at all, whether openmaintainer or not). This
 process will take a few days, so I expect to do "the big commit" sometime
 next week (July 6-10). Your patience is appreciated.

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Ticket URL: <https://trac.macports.org/ticket/44193#comment:42>
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