//go:build !with_gvisor package openvpn import E "github.com/sagernet/sing/common/exceptions" func newStackDevice(options DeviceOptions) (Device, error) { return nil, E.New("system:false requires the with_gvisor build tag") } func newSystemStackDevice(options DeviceOptions) (Device, error) { return nil, E.New("system stack requires the with_gvisor build tag") }