[MacPorts] #60453: build failure wxMaxima

[MacPorts]

#60453: build failure wxMaxima
-------------------------+--------------------------
  Reporter:  dyne2meter  |      Owner:  MSoegtropIMC
      Type:  defect      |     Status:  assigned
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:  2.6.2
Resolution:              |   Keywords:
      Port:  wxMaxima    |
-------------------------+--------------------------

Comment (by michaellass):

 ryandesign, correct. I configured gcc9 as default for gcc and this seems
 to include the c++ symlink (not only g++).

 As far as I can see, there was an attempt made to use the cmake portgroup
 but it failed: https://github.com/macports/macports-
 ports/pull/6920#discussion_r420677626

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Ticket URL: <https://trac.macports.org/ticket/60453#comment:12>
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