[MacPorts] #52258: cmake upgrade to 3.6.2_0 fails

[MacPorts]

#52258: cmake upgrade to 3.6.2_0 fails
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  Reporter:  dersh@…  |      Owner:  michaelld@…
      Type:  defect   |     Status:  new
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:  2.3.4
Resolution:           |   Keywords:
      Port:  cmake    |
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Comment (by larryv@…):

 Replying to [comment:8 michaelld@…]:
 > The basic issue is that we need to set the SDK properly by the host
 > OS. In your case here, the build is trying to use the 10.12 SDK while
 > you're running on 10.11. That's asking for problems. I'm not sure what
 > the correct solution is off the top of my head.

 This excerpt from the
 [http://adcdownload.apple.com/Developer_Tools/Xcode_8.1_beta/Release_Notes_for_Xcode_8.1_beta.pdf
 Xcode 8.1 beta release notes] may be of interest:

     There is no Command Line Tools (OS X 10.11) for Xcode 8 package. Xcode
 8 contains SDKs that are incompatible with earlier toolchains. Developers
 who want to make use of the Xcode 8 SDKs from the command line must choose
 the SDK with `xcode-select`. Developers on OS X El Capitan who have
 installed versions of the Command Line Tools (OS X 10.11) for Xcode 8 Beta
 should install Command Line Tools (OS X 10.11) for Xcode 7.3.1. (28234439)

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Ticket URL: <https://trac.macports.org/ticket/52258#comment:11>
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