title: Why would Xcode not use the build configuration settings from my xcconfig file?
body: <p>EDIT: I figured one could have this problem with any build configuration setting, not just <code>OTHER_LDFLAGS</code> and I've changed the title accordingly and removed irrelevant details from the question.</p>
  
  <p>I have a simple Xcode project MyApp. MyApp.xcconfig is set as the configuration file for Debug builds. It has one line:</p>
  
  <pre><code>OTHER_LDFLAGS = -force_load /foo/bar
  </code></pre>
  
  <p>Though it knows MyApp.xcconfig sets <code>OTHER_LDFLAGS</code> Xcode doesn't want to use that setting. A blank space, instead of the value in MyApp.xcconfig, is highlighted in green in the build settings (see the bottom rows labelled "Other Linker Flags"):</p>
  
  <p><a href="https://i.stack.imgur.com/rHGq2.png" rel="noreferrer"><img src="https://i.stack.imgur.com/rHGq2.png" alt="enter image description here"></a></p>
  
  <p>Why is this the case? From what I've read, it seems like the resolved setting should be the one from the .xcconfig file. Is there a way to make it so? </p>
  
  <p>I've also found that other settings in the xcconfig do resolve. But not <code>OTHER_LDFLAGS</code>.</p>