[MacPorts] #47299: Update Xcode on buildbot builders

[MacPorts]

#47299: Update Xcode on buildbot builders
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  Reporter:  ryandesign@…    |      Owner:  admin@…
      Type:  enhancement     |     Status:  new
  Priority:  Normal          |  Milestone:
 Component:  server/hosting  |    Version:
Resolution:                  |   Keywords:
      Port:                  |
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Comment (by ryandesign@…):

 Henry, can you check the output of "`clang -v`" on the 10.8 buildbot
 builder? According to XcodeVersionInfo#OSX10.8 we want it to be "`Apple
 LLVM version 5.1 (clang-503.0.40) (based on LLVM 3.4svn)`". If it's less,
 install the Xcode command line tools. To do so, open Xcode.app, go to the
 Preferences window, to the Downloads tab, and there should be an option to
 install or update the command line tools. If not, from the
 [https://developer.apple.com/downloads/index.action Apple Developer
 downloads page] (ADC login required), you can download and install
 "Command Line Tools (OS X Mountain Lion) - April 2014".

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Ticket URL: <https://trac.macports.org/ticket/47299#comment:3>
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