This is needed in order to build our network extension on tvOS. First step for #8282
Signed-off-by: Andrea Gottardo <andrea@tailscale.com>
Co-authored-by: Andrea Gottardo <andrea@tailscale.com>
It's used to control various opt-in functionality for the macOS and iOS
apps, and was lost in the migration to gocross.
Updates tailscale/tailscale#7769
Signed-off-by: Mihai Parparita <mihai@tailscale.com>
Xcode changed how/what data it exports to build steps at some point
recently, so our old way of figuring out the minimum support version
for clang stopped working.
Updates tailscale/corp#4095
Signed-off-by: David Anderson <danderson@tailscale.com>
