fmt.Fprintf(&b, "#line %d \"not-declared\"\n"+
			"void __cgo_f_%d_1(void) { __typeof__(%s) *__cgo_undefined__1; }\n"+
			"#line %d \"not-type\"\n"+
			"void __cgo_f_%d_2(void) { %s *__cgo_undefined__2; }\n"+
			"#line %d \"not-int-const\"\n"+
			"void __cgo_f_%d_3(void) { enum { __cgo_undefined__3 = (%s)*1 }; }\n"+
			"#line %d \"not-num-const\"\n"+
			"void __cgo_f_%d_4(void) { static const double __cgo_undefined__4 = (%s); }\n"+

	<preamble>
	__typeof__(t1) *__cgo__1;
	__typeof__(v2) *__cgo__2;
	__typeof__(v3) *__cgo__3;
	__typeof__(i4) *__cgo__4;
	enum { __cgo_enum__4 = i4 };
	__typeof__(i5) *__cgo__5;
	enum { __cgo_enum__5 = i5 };
	__typeof__(u6) *__cgo__6;
	enum { __cgo_enum__6 = u6 };
	__typeof__(f7) *__cgo__7;
	__typeof__(f8) *__cgo__8;
	__typeof__(s9) *__cgo__9;
	__typeof__(s10) *__cgo__10;