# XCODE_EMIT_EFFECTIVE_PLATFORM_NAME

Control emission of `EFFECTIVE_PLATFORM_NAME` by the `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 `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 `Generator expressions` like `TARGET_FILE` and will render those mostly unusable.