[MacPorts] #38577: install of tmux fails

[MacPorts]

#38577: install of tmux fails
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 Reporter:  david.w.watson@…  |      Owner:  macports-tickets@…
     Type:  defect            |     Status:  new
 Priority:  Normal            |  Milestone:
Component:  ports             |    Version:  2.1.3
 Keywords:                    |       Port:  tmux
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 Cannot find event.h

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Ticket URL: <https://trac.macports.org/ticket/38577>
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