[MacPorts] #65314: doxygen-devel @1.9.4: build fails for 10.7 through 10.12: undefined vtable symbols

[MacPorts]

#65314: doxygen-devel @1.9.4: build fails for 10.7 through 10.12: undefined vtable
symbols
----------------------------+-----------------------
  Reporter:  ryandesign     |      Owner:  michaelld
      Type:  defect         |     Status:  reopened
  Priority:  Normal         |  Milestone:
 Component:  ports          |    Version:  2.7.2
Resolution:                 |   Keywords:
      Port:  doxygen-devel  |
----------------------------+-----------------------

Comment (by michaelld):

 The error is so strange, and it's even stranger that it builds with some
 Clang but not others ... really not sure what's going on there!

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Ticket URL: <https://trac.macports.org/ticket/65314#comment:20>
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