[MacPorts] #69173: port fails to upgrade to 2.9.0

[MacPorts]

#69173: port fails to upgrade to 2.9.0
------------------------------+--------------------
  Reporter:  mouse07410       |      Owner:  (none)
      Type:  defect           |     Status:  new
  Priority:  Normal           |  Milestone:
 Component:  ports            |    Version:  2.9.0
Resolution:                   |   Keywords:
      Port:  Macports itself  |
------------------------------+--------------------

Comment (by kencu):

 please post error from config.log

 {{{
 See `config.log' for more details
 }}}

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Ticket URL: <https://trac.macports.org/ticket/69173#comment:1>
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