"Token is not a valid binary operator in a preprocessor subexpression" when using UIKitForMac

Question

So I'm trying to compile my iOS project for the mac, and when I try to use

#if !targetEnvironment(UIKitForMac)

I'm getting the error from the title.

I tried setting the build target to iOS 13, but didn't seem to have any effect.

Answer 1

Objective-C

#if !TARGET_OS_MACCATALYST
// Code to exclude from Mac.
#endif

Swift

#if !targetEnvironment(macCatalyst)
// Code to exclude from Mac.
#endif

Sources:

• https://developer.apple.com/documentation/uikit/creating_a_mac_version_of_your_ipad_app?language=objc

• https://developer.apple.com/documentation/xcode/creating_a_mac_version_of_your_ipad_app