[MacPorts] #64683: bind-9.18.0 build fails when bind-9.16.26 is installed

[MacPorts]

#64683: bind-9.18.0 build fails when bind-9.16.26 is installed
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  Reporter:  laughingtiger  |      Owner:  (none)
      Type:  defect         |     Status:  new
  Priority:  Normal         |  Milestone:
 Component:  ports          |    Version:  2.7.1
Resolution:                 |   Keywords:  monterey
      Port:  bind9          |
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Comment (by danielluke):

 Looks like gpl,look, and agpl (https://gitlab.isc.org/isc-
 projects/bind9/-/blob/main/LICENSE). I’ll update the port later today.

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Ticket URL: <https://trac.macports.org/ticket/64683#comment:11>
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