//go:build !with_dhcp package include import ( "github.com/sagernet/sing-dns" E "github.com/sagernet/sing/common/exceptions" ) func init() { dns.RegisterTransport([]string{"dhcp"}, func(options dns.TransportOptions) (dns.Transport, error) { return nil, E.New(`DHCP is not included in this build, rebuild with -tags with_dhcp`) }) }