const err = new Error("not implemented");
		err.code = "ENOSYS";
		return err;
	};

	if (!globalThis.fs) {
		let outputBuf = "";
		globalThis.fs = {
			constants: { O_WRONLY: -1, O_RDWR: -1, O_CREAT: -1, O_TRUNC: -1, O_APPEND: -1, O_EXCL: -1 }, // unused
			writeSync(fd, buf) {
				outputBuf += decoder.decode(buf);
				const nl = outputBuf.lastIndexOf("\n");
				if (nl != -1) {

is okay, because cmd/link also processes the cgo_import_static directive and
knows that _cgo_gcc_Cfunc_sin is expected to be supplied by a host
object file, so cmd/link does not treat the missing symbol as an error when
creating go.o. Indeed, the definition for _cgo_gcc_Cfunc_sin will be
provided to the host linker by foo2.cgo.o, which in turn will need the

		t.Fatal(err)
	}
	_, err = io.ReadAll(r)
	if err != io.ErrUnexpectedEOF {
		t.Errorf("File[0] error = %v; want io.ErrUnexpectedEOF", err)
	}
	r.Close()
}

// Verify we do not treat non-zip64 archives as zip64
func TestIssue12449(t *testing.T) {
	data := []byte{
		0x50, 0x4b, 0x03, 0x04, 0x14, 0x00, 0x08, 0x00,
		0x00, 0x00, 0x6b, 0xb4, 0xba, 0x46, 0x00, 0x00,

pkg syscall (netbsd-arm64-cgo), const O_APPEND = 8
pkg syscall (netbsd-arm64-cgo), const O_ASYNC = 64
pkg syscall (netbsd-arm64-cgo), const O_CLOEXEC = 4194304
pkg syscall (netbsd-arm64-cgo), const O_CREAT = 512
pkg syscall (netbsd-arm64-cgo), const OCRNL = 16
pkg syscall (netbsd-arm64-cgo), const OCRNL ideal-int
pkg syscall (netbsd-arm64-cgo), const O_DIRECT = 524288
pkg syscall (netbsd-arm64-cgo), const O_DIRECT ideal-int

		case r == '_':
			return false
		}
		return true
	}
	// Letters and digits are not separators
	if unicode.IsLetter(r) || unicode.IsDigit(r) {
		return false
	}
	// Otherwise, all we can do for now is treat spaces as separators.
	return unicode.IsSpace(r)
}

// Title treats s as UTF-8-encoded bytes and returns a copy with all Unicode letters that begin
// words mapped to their title case.
//

pkg syscall (darwin-386), const O_APPEND = 8
pkg syscall (darwin-386), const O_ASYNC = 64
pkg syscall (darwin-386), const O_CLOEXEC = 16777216
pkg syscall (darwin-386), const O_CREAT = 512
pkg syscall (darwin-386), const O_DIRECTORY = 1048576
pkg syscall (darwin-386), const O_DSYNC = 4194304
pkg syscall (darwin-386), const O_EVTONLY = 32768
pkg syscall (darwin-386), const O_EXCL = 2048

pkg syscall (linux-arm-cgo), const SYS_CLONE ideal-int
pkg syscall (linux-arm-cgo), const SYS_CLOSE ideal-int
pkg syscall (linux-arm-cgo), const SYS_CONNECT ideal-int
pkg syscall (linux-arm-cgo), const SYS_CREAT ideal-int
pkg syscall (linux-arm-cgo), const SYS_DELETE_MODULE ideal-int
pkg syscall (linux-arm-cgo), const SYS_DUP ideal-int
pkg syscall (linux-arm-cgo), const SYS_DUP2 ideal-int

func (f *formatter) formatString(b []byte, s string) {
	if len(s) > len(b) {
		f.err = ErrFieldTooLong
	}
	copy(b, s)
	if len(s) < len(b) {
		b[len(s)] = 0
	}

	// Some buggy readers treat regular files with a trailing slash
	// in the V7 path field as a directory even though the full path
	// recorded elsewhere (e.g., via PAX record) contains no trailing slash.
	if len(s) > len(b) && b[len(b)-1] == '/' {

	override := make(map[string]string)

	// Allow source file to specify override mappings.
	// For example, the socket data structures refer
	// to in_addr and in_addr6 structs but we want to be
	// able to treat them as byte arrays, so the godefs
	// inputs in package syscall say
	//
	//	// +godefs map struct_in_addr [4]byte
	//	// +godefs map struct_in_addr6 [16]byte
	//
	for _, g := range f.Comments {

		tf := fmt.Sprintf("/proc/%s/status", f.Name())
		d, err := os.ReadFile(tf)
		if err != nil {
			// There are a surprising number of ways this
			// can error out on linux.  We've seen all of
			// the following, so treat any error here as
			// equivalent to the "process is gone":
			//    os.IsNotExist(err),
			//    "... : no such process",
			//    "... : bad file descriptor.
			continue
		}
		lines := strings.Split(string(d), "\n")