title: Adding square SDK as dependency in Swift 4, Xcode 9
body: <p>I am looking for help doing this step in Xcode 9, Swift 4:</p>
  
  <p>Git Submodules
  Checkout the submodule with git submodule add <a href="https://github.com/square/SquarePointOfSaleSDK-iOS.git" rel="nofollow noreferrer">https://github.com/square/SquarePointOfSaleSDK-iOS.git</a>, drag SquarePointOfSaleSDK.xcodeproj to your project, and add SquarePointOfSaleSDK as a build dependency.</p>
  
  <p>I simply have no idea how to do this - and the examples I found have not worked.</p>
  
  <p>Any help would be greatly appreciated as I am dead in the water.</p>
  
  <p>Thanks, Craig</p>