[PATCH] D30136: [compiler-rt][builtins][WIP] Add _IsOSVersionAtLeast, to be used by ObjC's @available

[Erik Pilkington via Phabricator via llvm-commits]

erik.pilkington added a comment.

@arphaman: AFAIK Gestalt() is only present on macOS (https://developer.apple.com/reference/coreservices/1471624-gestalt?language=objc), so for iOS and the like we'll need to fall back to parsing the SystemVersion.plist file. Is there any reason to prefer special casing macOS to use Gestalt?


https://reviews.llvm.org/D30136