}
	return readGNUSparseMap0x1(hdr.PAXRecords)
}

// mergePAX merges paxHdrs into hdr for all relevant fields of Header.
func mergePAX(hdr *Header, paxHdrs map[string]string) (err error) {
	for k, v := range paxHdrs {
		if v == "" {
			continue // Keep the original USTAR value
		}
		var id64 int64
		switch k {
		case paxPath:
			hdr.Name = v
		case paxLinkpath:
			hdr.Linkname = v
		case paxUname:

	litWidth int                           // width in bits of literal codes
	err      error

	// The first 1<<litWidth codes are literal codes.
	// The next two codes mean clear and EOF.
	// Other valid codes are in the range [lo, hi] where lo := clear + 2,
	// with the upper bound incrementing on each code seen.
	//
	// overflow is the code at which hi overflows the code width. It always
	// equals 1 << width.
	//