[MacPorts] #65740: webkit2-gtk 2.28.2_2 < 2.28.2_3 fails to build (upgrade) on Mavericks

[MacPorts]

#65740: webkit2-gtk 2.28.2_2 < 2.28.2_3 fails to build (upgrade) on Mavericks
--------------------------+--------------------
  Reporter:  tehcog       |      Owner:  (none)
      Type:  defect       |     Status:  new
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:  2.7.2
Resolution:               |   Keywords:
      Port:  webkit2-gtk  |
--------------------------+--------------------

Comment (by kencu):

 yeah, newer clangs error with this.

 fixed in legacysupport:

 https://github.com/macports/macports-legacy-
 support/blob/03a02c1fb64e1ca254cb7c563ec367b12bd7fb18/include/TargetConditionals.h#L24

 so just usecthat perhaps

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Ticket URL: <https://trac.macports.org/ticket/65740#comment:1>
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