I'm making a library that uses the variants variable of AVAsset. That's less important; the significant part is that it has an Xcode 13+ requirement. This library may be used by apps running Xcode 12. Is there a compiler flag that can run code only if on a certain version of Xcode?
Something like how you would do this for a Swift version:
#if swift(>=5.0)
// code
#else
// code
#endif
I'd want to do
#if xcode(>=13.0)
// use variants
#endif
From what I know, there’s no way of directly checking the Xcode version. However, Xcode 13 supports iOS 15, Xcode 12 doesn’t. You can use that as a workaround to check if Xcode version is 13 or higher.
#if __IPHONE_OS_VERSION_MAX_ALLOWED >= 150000 // iOS 15 or greater
// Xcode 12 will not see this code.
#else
// Xcode 12 and lower will see this
#endif
I found that #if compiler(>=5.5) works here. Note, this is different than if swift(>=5.5), which will not necessarily work depending on the swift version you have set in your project.
Xcode 12.5 : Swift version 5.4.2
Xcode 12.3 : Swift version 5.3.2
Xcode 12.2 : Swift version 5.3.1
Xcode 11.6 : Swift version 5.2.4
Xcode 11.5 : Swift version 5.2.4
Xcode 11.4 : Swift version 5.2
Xcode 11.3 : Swift version 5.1.3
Xcode 11.2.1 : Swift version 5.1.2
Xcode 11.1 : Swift version 5.1
And then here's how to check:
#if compiler(>=5) //4.2, 3.0, 2.0 replace whatever swift version you wants to check
print("Hello Swift 5")
#endif
All the best 😊