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- XCODE_EMIT_EFFECTIVE_PLATFORM_NAME
- ----------------------------------
- .. versionadded:: 3.8
- Control emission of ``EFFECTIVE_PLATFORM_NAME`` by the :generator:`Xcode`
- generator.
- It is required for building the same target with multiple SDKs. A
- common use case is the parallel use of ``iphoneos`` and
- ``iphonesimulator`` SDKs.
- Three different states possible that control when the :generator:`Xcode`
- generator emits the ``EFFECTIVE_PLATFORM_NAME`` variable:
- - If set to ``ON`` it will always be emitted
- - If set to ``OFF`` it will never be emitted
- - If unset (the default) it will only be emitted when the project was
- configured for an embedded Xcode SDK like iOS, tvOS, watchOS or any
- of the simulators.
- .. note::
- When this behavior is enable for generated Xcode projects, the
- ``EFFECTIVE_PLATFORM_NAME`` variable will leak into
- :manual:`Generator expressions <cmake-generator-expressions(7)>`
- like ``TARGET_FILE`` and will render those mostly unusable.
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