/CMake 3.15


Set to the Swift language version number. If not set, the oldest legacy version known to be available in the host Xcode version is assumed:

  • Swift 4.0 for Xcode 10.2 and above.
  • Swift 3.0 for Xcode 8.3 and above.
  • Swift 2.3 for Xcode 8.2 and below.

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