When attempting to archive a macOS project that includes AppAuth-macOS a generic xcarchive is generated rather than a macOS App Archive. This is because SKIP_INSTALL isn't set on AppAuth-macOS.

Specifically it's necessary to add SKIP_INSTALL = YES; to these build configurations:

AppAuth-macOS ~ Debug (340DAE551D58216A00EC285B)
AppAuth-macOS ~ Release (340DAE561D58216A00EC285B)

Here is the link to the issue raised in google-api-objetivec-client-for-rest project related to this: google/google-api-objectivec-client-for-rest#124

Should I issue a PR?