//go:build !with_dhcp package include import ( "context" "github.com/sagernet/sing-dns" E "github.com/sagernet/sing/common/exceptions" "github.com/sagernet/sing/common/logger" N "github.com/sagernet/sing/common/network" ) func init() { dns.RegisterTransport([]string{"dhcp"}, func(ctx context.Context, logger logger.ContextLogger, dialer N.Dialer, link string) (dns.Transport, error) { return nil, E.New(`DHCP is not included in this build, rebuild with -tags with_dhcp`) }) }