[MacPorts] #63392: doxygen @1.9.2: CMake Error: Unknown argument -EPSTOPDF=/opt/local/bin/epstopdf

[MacPorts]

#63392: doxygen @1.9.2: CMake Error: Unknown argument
-EPSTOPDF=/opt/local/bin/epstopdf
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  Reporter:  mouse07410  |      Owner:  (none)
      Type:  defect      |     Status:  new
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:
Resolution:              |   Keywords:
      Port:  doxygen     |
-------------------------+--------------------

Comment (by ryandesign):

 I tried changing the flag to `-DEPSTOPDF=/opt/local/bin/epstopdf-nope` and
 although it now does not complain about an invalid cmake argument, it also
 does not fail to build and the log does not contain any references to
 epstopdf except for that flag itself. This makes me wonder whether the
 port still needs this flag or the dependency on epstopdf. I suppose the
 next thing to try would be to remove the dependency on the port that
 installs epstopdf, deactivate that port, and try to install doxygen +docs
 again and make sure that still succeeds too (and is not missing anything
 that gets built when epstopdf is present).

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Ticket URL: <https://trac.macports.org/ticket/63392#comment:2>
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