[MacPorts] #38743: atlas build error

[MacPorts]

#38743: atlas build error
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  Reporter:  matthew.bothwell@…  |      Owner:  vince@…
      Type:  defect              |     Status:  new
  Priority:  Normal              |  Milestone:
 Component:  ports               |    Version:  2.1.3
Resolution:                      |   Keywords:
      Port:  atlas               |
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Comment (by ryandesign@…):

 This was not a clean attempt, please
 [http://guide.macports.org/chunked/project.html#project.tickets.prerequisites
 clean and try again].

 Please also indicate what version of Xcode you have, and ensure that your
 command line tools are up to date (open Xcode, go to Preferences, then to
 Downloads).

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Ticket URL: <https://trac.macports.org/ticket/38743#comment:2>
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