Post #1915269

I've been exploring why incremental xcodebuilds take longer than I think they should, and I've been seeing this interesting remark from -driver-show-incremental: remark: Incremental compilation: Fingerprint missing for existing interface of top-level name '==' in ...swiftmodule Thousands of these for different symbols. I can't find anything discussing what this remark means. Does anyone know what this is?