[MacPorts] #53994: highlight @3.36 fails to build with libc++

[MacPorts]

#53994: highlight @3.36 fails to build with libc++
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  Reporter:  1-61803    |      Owner:
      Type:  defect     |     Status:  new
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:
Resolution:             |   Keywords:
      Port:  highlight  |
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Comment (by ryandesign):

 Yes, this is another case of a build system that does not understand that
 it needs to use CXXFLAGS at link time as well when linking C++ code. The
 workaround posted in #53719 should be sufficient until the port or the
 build system is fixed.

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Ticket URL: <https://trac.macports.org/ticket/53994#comment:1>
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