[MacPorts] #57577: qt4-mac : set the graphicssystem via qtconfig

[MacPorts]

#57577: qt4-mac : set the graphicssystem via qtconfig
--------------------------+-----------------------
  Reporter:  RJVB         |      Owner:  michaelld
      Type:  enhancement  |     Status:  assigned
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:
Resolution:               |   Keywords:  haspatch
      Port:  qt4-mac      |
--------------------------+-----------------------

Comment (by RJVB):

 Replying to [comment:12 jjstickel]:

 > I forgot to cc myself to this ticket, and so I just saw this now.

 That should happen automatically when you comment?!

 > I can submit the PR once we are happy with this approach. I already
 modified the Portfile in the manner Michael suggests in comment:9.

 I was going to find a moment to do this but if you're up for it I'll
 gladly leave the honours to you :)

-- 
Ticket URL: <https://trac.macports.org/ticket/57577#comment:13>
MacPorts <https://www.macports.org/>
Ports system for macOS