[MacPorts] #53384: Jasper 2.0.10 fails to build on macOS Sierra

[MacPorts]

#53384: Jasper 2.0.10 fails to build on macOS Sierra
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  Reporter:  wojtekcz  |      Owner:  jmroot
      Type:  defect    |     Status:  assigned
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:
Resolution:            |   Keywords:
      Port:  jasper    |
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Comment (by jmroot):

 Yes, MacPorts requires the command line tools, and no, they are not
 installed automatically. You can install them by running this in the
 Terminal:
 {{{
 xcode-select --install
 }}}

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Ticket URL: <https://trac.macports.org/ticket/53384#comment:9>
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