Mac Catalyst build fails in RxSwift 6.10.1: “Unable to find module dependency: RxCocoaRuntime”

[arshiacont]

After updating to RxSwift 6.10.1 (SwiftPM), my Mac Catalyst build fails with:
Unable to find module dependency: 'RxCocoaRuntime'
Downgrading to 6.9.1 fixes the issue.

Steps to Reproduce

• In Xcode, add RxSwift via Swift Package Manager.
• Build a Mac Catalyst target that uses RxCocoa.
• Build fails with “Unable to find module dependency: RxCocoaRuntime”.
• Expected Behavior: Mac Catalyst build succeeds (as it does on 6.9.1).

Actual Behavior

Build fails with: Unable to find module dependency: 'RxCocoaRuntime'

Regression

✅ 6.9.1 works
❌ 6.10.1 fails (Swift 5.9 manifest)

Suspected Cause (hypothesis)

In the Swift 5.9 manifest (Package swift-5.9.swift), RxCocoa’s dependency on RxCocoaRuntime is conditional on .iOS/.macOS/.tvOS/.watchOS(/.visionOS) but doesn’t include .macCatalyst. That might cause RxCocoa to import a module that isn’t built for Catalyst. Adding .macCatalyst to the condition might resolve it.

[c128128]

same

Looks like this #2691 is the fix