Swift 6.1 Macro Check

[codefiesta]

Description

Provides fix for developers using Xcode 16.3 and Swift 6.1 compilers. After looking at the Swift Package Index Build Results it appears the @available check isn't sufficent.

Fix and Testing

You'll need to download Xcode 16.3 and use xcrun from the command line (You won't be able to run the old Xcode version on Tahoe). Run the following command

env DEVELOPER_DIR=/PATH_TO_DOWNLOAD/Xcode_16.3.app xcrun swift build --arch arm64

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules