Edit Xcode xcconfig file and Cocoapods

I want to edit the xcconfig file, but unfortunately Xcode only allows 1 xcconfig file per configuration, and that is Pods.xcconfig because I'm using Cocoapods

So how can I edit the xcconfig without hurting Cocoapods

I can think of several ways

1. Make Xcode use multiple xcconfig files
2. Use my own xcconfig file that includes Pods.xcconfig file

So how to deal with this ?

Here is a issue in CocoaPods Tracker. A workaround is described here: #1736.

As kylef (owner of CocoaPods repo) mentioned:

Manual Workaround: Use pod install --no-integrate then add #include "Pods/Pods-GCE.xcconfig" from your custom xcconfig files.

I don't think there is a clear solution to automatically fix it, but maybe it would be nice if cocoa pods detected this and told the user. Took me a while to figure out what happened after I did pod install and the projects xcconfig files wasn't being included.