[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:
 Keywords:                  |       Port:
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 Could you please check on the 10.7 and 10.8 buildbot builders which
 versions of Xcode and the Xcode command line tools are installed, and
 update them if they're outdated? I'd like them to be at the latest
 versions. For the 10.7 builder that would be Xcode 4.6.3, and for the 10.8
 builder that would be Xcode 5.1.1. After updating Xcode, the corresponding
 Xcode command line tools should be installed. If you're installing Xcode
 via the Mac App Store, the command line tools update may simply be
 suggested in the App Store updates. If you're installing Xcode by manually
 downloading it from the Apple developer web site, then you'll need to
 manually download and install the corresponding command line tools. If you
 need help identifying which version that is, let me know and I'll look it
 up.

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