[MacPorts] #40768: saga: use the wxWidgets PortGroup

[MacPorts]

#40768: saga: use the wxWidgets PortGroup
--------------------------+----------------------
  Reporter:  mojca@…      |      Owner:  vince@…
      Type:  enhancement  |     Status:  new
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:
Resolution:               |   Keywords:  haspatch
      Port:  saga         |
--------------------------+----------------------

Comment (by mojca@…):

 Disclaimer: I didn't test the software in any way. Please first make sure
 first that my modifications actually work.

-- 
Ticket URL: <https://trac.macports.org/ticket/40768#comment:1>
MacPorts <http://www.macports.org/>
Ports system for OS X