[MacPorts] #40297: py-robotframework-ride: fix the wxWidgets variants and explicit supported_archs

[MacPorts]

#40297: py-robotframework-ride: fix the wxWidgets variants and explicit
supported_archs
-------------------------------------+-------------------
  Reporter:  mojca@…                 |      Owner:  jwa@…
      Type:  defect                  |     Status:  new
  Priority:  Normal                  |  Milestone:
 Component:  ports                   |    Version:
Resolution:                          |   Keywords:
      Port:  py-robotframework-ride  |
-------------------------------------+-------------------

Comment (by mojca@…):

 So - can my latest patch (`py-robotframework-ride.Portfile.diff`) be
 applied and we close the ticket? That is: if you want the ability to
 occasionally test wxWidgets 3.0.

 If you don't need that and are happy with unconditionally using wxGTK 2.8,
 please just close this ticket with `wontfix`.

 Now the port at least works and it compiles without errors on 10.6 (which
 was the main reason why I opened this port in the first place).

-- 
Ticket URL: <https://trac.macports.org/ticket/40297#comment:7>
MacPorts <http://www.macports.org/>
Ports system for OS X