[MacPorts] #58923: clang-8.0 @8.0.0_1 does not build on mavericks

[MacPorts]

#58923: clang-8.0 @8.0.0_1 does not build on mavericks
------------------------+--------------------
  Reporter:  tehcog     |      Owner:  (none)
      Type:  defect     |     Status:  new
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:  2.5.4
Resolution:             |   Keywords:
      Port:  clang-8.0  |
------------------------+--------------------
Changes (by tehcog):

 * Attachment "clang8_main.log" added.

 main.log

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Ticket URL: <https://trac.macports.org/ticket/58923>
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