There are a couple build errors in OpenCombine module for file Sources/OpenCombine/Helpers/Locking.swift, namely:

1. Cannot find type __UnfairLock.
2. Cannot find type __UnfairRecursiveLock.

Also there is a build error in Sources/OpenCombine/CombineIdentifier.swift

1. Cannot find __nextCombineIdentifier()

I think this is mainly due to the package definition itself or a conditional compilation flag that has not been updated for the new platform. Both of these build error cases appear to be caused by a failure to import the COpenCombineHelpers module.

I tried to compile the OpenCombine module on Xcode 15.4, Swift 5.9 and with the 'Any visionOS' device target destination.