[MacPorts] #45736: Gecode port update to gecode 4.3.1 and qt5-mac dependency

[MacPorts]

#45736: Gecode port update to gecode 4.3.1 and qt5-mac dependency
----------------------------+-----------------------
  Reporter:  l.digaspero@…  |      Owner:  brandon@…
      Type:  update         |     Status:  new
  Priority:  Normal         |  Milestone:
 Component:  ports          |    Version:  2.3.2
Resolution:                 |   Keywords:  haspatch
      Port:  gecode         |
----------------------------+-----------------------

Comment (by l.digaspero@…):

 I added the Portfile diff that supports both qt4 and qt5 (obviously in
 conflict) and the qt variant for retro-compatibility.

-- 
Ticket URL: <https://trac.macports.org/ticket/45736#comment:4>
MacPorts <https://www.macports.org/>
Ports system for OS X