[MacPorts] #56669: ldns 1.7.0 ./configure fails to find the SDK on MacOS X <= 10.6

[MacPorts]

#56669: ldns 1.7.0 ./configure fails to find the SDK on MacOS X <= 10.6
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  Reporter:  grumpybozo  |      Owner:  (none)
      Type:  defect      |     Status:  closed
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:  2.5.2
Resolution:  fixed       |   Keywords:  haspatch upstream update
      Port:  ldns        |
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Comment (by jmroot):

 Replying to [comment:4 yan12125]:
 > further issues in building on 10.6 is fixed with
 [162736257bd7e94b2d2d72d60c527ed9196aa0ba/macports-ports].

 That failure was actually on 10.11, but yeah, that's doing what I said in
 comment:1.

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Ticket URL: <https://trac.macports.org/ticket/56669#comment:5>
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