//go:build !with_dhcp package include import ( "context" "github.com/sagernet/sing-box/adapter" C "github.com/sagernet/sing-box/constant" "github.com/sagernet/sing-box/dns" "github.com/sagernet/sing-box/log" "github.com/sagernet/sing-box/option" E "github.com/sagernet/sing/common/exceptions" ) func registerDHCPTransport(registry *dns.TransportRegistry) { dns.RegisterTransport[option.DHCPDNSServerOptions](registry, C.DNSTypeDHCP, func(ctx context.Context, logger log.ContextLogger, tag string, options option.DHCPDNSServerOptions) (adapter.DNSTransport, error) { return nil, E.New(`DHCP is not included in this build, rebuild with -tags with_dhcp`) }) }