Even though you haven't made any changes to the Pods in your project, Xcode can still re-compile you libraries, even when it should not need to do this. For a few small libraries this can be a small irritant, in a large project this can be time-consuming and annoying.

One solution for this is to not give Xcode the chance to re-compile code. CocoaPods Binary will pre-compile your Pods during pod install, and then add the binary assets (e.g. .framework files) into the generated Xcode projects instead of the source code.

CocoaPods Binary works by adding a pre-install phase which:

• Pulls out pods which you specify to be pre-compiled
• Compiles those pods
• Switches the Podspecs which used to refer to source code, to refer to the new compiled frameworks

To specify which Pods you want to convert, edit your Podfile by appending :binary => true to your pod definitions.

  plugin 'cocoapods-binary'
  use_frameworks!

  target "HP" do
-      pod "ExpectoPatronum"
+      pod "ExpectoPatronum", :binary => true
  end

Then run bundle exec pod install.

To find out more, check out leavez/cocoapods-binary.