[MacPorts] #69346: bind9 @9.18.21: Outdated configure compile options

[MacPorts]

#69346: bind9 @9.18.21: Outdated configure compile options
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  Reporter:  wfburton     |      Owner:  danielluke
      Type:  enhancement  |     Status:  assigned
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:  2.9.1
Resolution:               |   Keywords:
      Port:  bind9        |
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Comment (by danielluke):

 oh, also I merged barracuda156's PR (I thought I did it yesterday, but I
 guess I didn't).

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Ticket URL: <https://trac.macports.org/ticket/69346#comment:7>
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