Can't add Xcode 8 bridging header
<p>I am trying to integrate an obj-c library  - specifically Worldpay. I have added the lib and created a bridging header file. However within Xcode 8 I cannot see where to link the reference to it in the build settings. Other answers point to <code>Objective-C Bridging Header</code> or <code>Swift Compiler</code> but when I search within build settings I do not see it. </p>

<p>I have done this before in previous versions of Xcode.</p>

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