[MacPorts] #66390: qore @1.12.3 - configure phase cannot find c++ header "slist"

[MacPorts]

#66390: qore @1.12.3 - configure phase cannot find c++ header "slist"
------------------------+-----------------------
  Reporter:  snowflake  |      Owner:  davidnich
      Type:  defect     |     Status:  assigned
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:  2.8.99
Resolution:             |   Keywords:
      Port:  qore       |
------------------------+-----------------------
Changes (by snowflake):

 * Attachment "debug-2022-12-05.log" added.

 log generated with port -ds

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Ticket URL: <https://trac.macports.org/ticket/66390>
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