"complexfloat":  "float _Complex",
	"complexdouble": "double _Complex",
}

var incomplete = "_cgopackage.Incomplete"

// cname returns the C name to use for C.s.
// The expansions are listed in nameToC and also
// struct_foo becomes "struct foo", and similarly for
// union and enum.
func cname(s string) string {
	if t, ok := nameToC[s]; ok {
		return t
	}

	if strings.HasPrefix(s, "struct_") {