[MacPorts] #59224: gcc8 @8.3.0_4: confused by __OSX_AVAILABLE_STARTING

[MacPorts]

#59224: gcc8 @8.3.0_4: confused by __OSX_AVAILABLE_STARTING
--------------------------+----------------------
  Reporter:  MaddTheSane  |      Owner:  (none)
      Type:  defect       |     Status:  new
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:  2.6.1
Resolution:               |   Keywords:  catalina
      Port:  gcc8         |
--------------------------+----------------------

Comment (by kencu):

 see the comments on <https://github.com/macports/macports-
 ports/commit/368383b4263282656853b68965c3db455333c5bd>

 somebody will need to backport that fix into gcc8 -- feeling energetic?

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Ticket URL: <https://trac.macports.org/ticket/59224#comment:2>
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