[MacPorts] #54766: Does port:clang*'s libstdcxx have to be default?

[MacPorts]

#54766: Does port:clang*'s libstdcxx have to be default?
----------------------------------+---------------------------------
  Reporter:  RJVB                 |      Owner:  MarcusCalhoun-Lopez
      Type:  defect               |     Status:  assigned
  Priority:  Normal               |  Milestone:
 Component:  ports                |    Version:
Resolution:                       |   Keywords:
      Port:  clang-4.0 clang-5.0  |
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Comment (by MarcusCalhoun-Lopez):

 In [changeset:"95ca160cf4f77eb4fbf7f8092e65eb5c3ebd21f3/macports-ports"
 95ca160cf4f77eb4fbf7f8092e65eb5c3ebd21f3/macports-ports]:
 {{{
 #!ConfigurableCommitTicketReference repository="macports-ports"
 revision="95ca160cf4f77eb4fbf7f8092e65eb5c3ebd21f3"
 llvm-3.9 and llvm-4.0: use xcrun to spawn tools

 See https://trac.macports.org/ticket/54766#comment:12
 See https://github.com/macports/macports-
 ports/commit/be6401d19706f7317979dfbd680592cee5f7cf9d
 }}}

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Ticket URL: <https://trac.macports.org/ticket/54766#comment:25>
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