[MacPorts] #57911: libcxx @5.0.1_4: cc1plus: error: unrecognized command line option "-Wsign-conversion"

[MacPorts]

#57911: libcxx @5.0.1_4: cc1plus: error: unrecognized command line option "-Wsign-
conversion"
-------------------------+----------------------
  Reporter:  ryandesign  |      Owner:  jeremyhu
      Type:  defect      |     Status:  assigned
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:
Resolution:              |   Keywords:  leopard
      Port:  libcxx      |
-------------------------+----------------------
Changes (by ryandesign):

 * Attachment "main.log" added.


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Ticket URL: <https://trac.macports.org/ticket/57911>
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