[MacPorts] #60453: build failure wxMaxima

[MacPorts]

#60453: build failure wxMaxima
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  Reporter:  dyne2meter  |      Owner:  MSoegtropIMC
      Type:  defect      |     Status:  assigned
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:  2.6.2
Resolution:              |   Keywords:
      Port:  wxMaxima    |
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Comment (by bal-agates):

 I just encountered the same problem on macOS 10.13.6.  My Xcode is 10.1.
 The fixed reported by willic3

 {{{
 sudo port select --set gcc none
 }}}

 worked for me.  Previously I had gcc = mp-gcc9.

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Ticket URL: <https://trac.macports.org/ticket/60453#comment:19>
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