[MacPorts] #50218: Error: Failed to install doxygen

[MacPorts]

#50218: Error: Failed to install doxygen
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  Reporter:  justin@…  |      Owner:  css@…
      Type:  defect    |     Status:  new
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:  2.3.4
Resolution:            |   Keywords:
      Port:  doxygen   |
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Comment (by oscar@…):

 I believe I have the same error, but I do have the Command Line Tools
 installed. Attached my error log.

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Ticket URL: <https://trac.macports.org/ticket/50218#comment:6>
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