[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 mcalhoun@…):

 Just off the top of my head, there would seem to be four options:
 1. Put both the Qts in their own private directories (as mentioned in
 comment:86:ticket:37331)
   *  This is the default behavior (put everything in /usr/local/Qt-5.3.1
 or /usr/local/Trolltech/Qt-4.8.6).
   *  The binaries, cmake files, pkg-config files, and frameworks would be
 harder for scripts to find.
   *  I believe qt4-mac used to do this prior to r72571.
 1. Put one of the Qts in its own private directory for anyone who might
 need it and "bless!'' the other as the "official" supported version by
 putting it in ${prefix}.
 1. Try to figure out a way to get both installed in ${prefix}.
 1. Keep things the way they are and force users to choose.

 Options 1, 2, and 4 would be fairly easy to implement (4 would be the
 easiest).[[BR]]
 Personally, I only need one version, so I have no strong feelings one way
 or the other.[[BR]]
 Does anyone else have any thoughts?

-- 
Ticket URL: <https://trac.macports.org/ticket/44193#comment:2>
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