[MacPorts] #52326: gmp @6.1.1: error: C++ compiler not available, see config.log for details

[MacPorts]

#52326: gmp @6.1.1: error: C++ compiler not available, see config.log for details
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  Reporter:  alexmartin715@…  |      Owner:  mcalhoun@…
      Type:  defect           |     Status:  new
  Priority:  Normal           |  Milestone:
 Component:  ports            |    Version:  2.3.4
Resolution:                   |   Keywords:  sierra
      Port:  gmp              |
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Comment (by shiqiu.iub@…):

 Replying to [comment:1 ryandesign@…]:
 > gmp built successfully on our Sierra buildbot worker, which suggests a
 problem on your machine. Are you certain you installed both Xcode 8 and
 the Xcode 8 version of the command line tools?

 gmp built manually and passd all tests, but complained when installing via
 macports on my machine.  I have Xcode 8 and the correct command line tool
 installed.

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Ticket URL: <https://trac.macports.org/ticket/52326#comment:4>
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