[MacPorts] #61945: fldigi port fails to rebuild

[MacPorts]

#61945: fldigi port fails to rebuild
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  Reporter:  mouse07410  |      Owner:  ra1nb0w
      Type:  defect      |     Status:  assigned
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:
Resolution:              |   Keywords:
      Port:  fldigi      |
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Comment (by ra1nb0w):

 This confirm that there is some other problem and it is not fldigi related
 since the syntax is correct. Unfortunately, I don't have any macOS 10.15
 to try out.

 Do you have custom environment variables or custom configurations on
 /opt/local/etc/macports?

 Can you try {{{cc -std=c++11 -Wall -fsyntax-only src/dialogs/guide.cxx}}}
 from the sources?

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Ticket URL: <https://trac.macports.org/ticket/61945#comment:7>
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