[MacPorts] #49881: doxygen 1.8.9.1 build error with flex 2.6.0

[MacPorts]

#49881: doxygen 1.8.9.1 build error with flex 2.6.0
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  Reporter:  sxcurry@…  |      Owner:  css@…
      Type:  defect     |     Status:  new
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:  2.3.4
Resolution:             |   Keywords:  haspatch
      Port:  doxygen    |
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Comment (by m.rick@…):

 Replying to [comment:7 don@…]:
 > sorry to sound like a noob here - but could you point me in the right
 direction to instructions on how to use the patch files to upgrade doxygen
 to 1.8.10?
 >
 > Much appreciated.
 Does like described here.
 http://nerdwin15.com/2013/12/fixing-mod_jk-macport-on-osx-mavericks/

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Ticket URL: <https://trac.macports.org/ticket/49881#comment:20>
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