[MacPorts] #49109: port modifications required by making qt4-mac co-installable with Qt5

[MacPorts]

#49109: port modifications required by making qt4-mac co-installable with Qt5
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 Reporter:  rjvbertin@…  |      Owner:  macports-tickets@…
     Type:  enhancement  |     Status:  new
 Priority:  Normal       |  Milestone:
Component:  ports        |    Version:
 Keywords:  haspatch     |       Port:
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 As a companion to ticket #44193, here's an initial list of ports I had to
 change in order to get them to build with a `qt4-mac` port that no longer
 installed in the "traditional", "exclusive" locations. These changes are
 mostly replacing hardcoded locations with variables provided by the
 PortGroup.

 I suggest we use the attachment description entry widget to comment on
 specifics.

 That said, I'll start off by pointing out that `port:goldendict` installs
 the app bundle into /Applications/MacPorts instead of into
 /Applications/MacPorts/Qt4 (and also manages to ignore global settings set
 through qtconfig but that's an independent issue).

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Ticket URL: <https://trac.macports.org/ticket/49109>
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