Conditionally compile based on iOS version? (previewCGImageRepresentation broke)

Using Swift
2

Since both the SDK version and the compiler version are tied to an Xcode release, you can use the #if compiler directive as a stand-in for the SDK version:

import AVFoundation

extension AVCapturePhoto {
  func stupidOSChangePreviewCGImageRepresentation() -> CGImage? {
    #if compiler(>=5.5)
      // iOS 15+ SDK, macOS 12+ SDK
      return self.previewCGImageRepresentation()
    #else
      return self.previewCGImageRepresentation()?.takeUnretainedValue()
    #endif
  }
}
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