// for more detail.
	tags = append(tags, context.GOOS, context.GOARCH)
	sort.Strings(tags)

	for _, tag := range tags {
		if ctags[tag] {
			key += "," + tag
			ctags[tag] = false
		}
	}
	return key
}

type listImports struct {
	stdPackages []string                     // names, omitting "unsafe", internal, and vendored packages

pkg debug/dwarf, const TagInlinedSubroutine Tag
pkg debug/dwarf, const TagInterfaceType Tag
pkg debug/dwarf, const TagLabel Tag
pkg debug/dwarf, const TagLexDwarfBlock Tag
pkg debug/dwarf, const TagMember Tag
pkg debug/dwarf, const TagModule Tag
pkg debug/dwarf, const TagMutableType Tag
pkg debug/dwarf, const TagNamelist Tag
pkg debug/dwarf, const TagNamelistItem Tag
pkg debug/dwarf, const TagNamespace Tag

var sysStat func(fi fs.FileInfo, h *Header, doNameLookups bool) error

const (
	// Mode constants from the USTAR spec:
	// See http://pubs.opengroup.org/onlinepubs/9699919799/utilities/pax.html#tag_20_92_13_06
	c_ISUID = 04000 // Set uid
	c_ISGID = 02000 // Set gid
	c_ISVTX = 01000 // Save text (sticky bit)

	// Common Unix mode constants; these are not defined in any common tar standard.

	{"TrimRight", "abba", "ab", ""},
	{"TrimLeft", "abba", "a", "bba"},
	{"TrimLeft", "abba", "b", "abba"},
	{"TrimRight", "abba", "a", "abb"},
	{"TrimRight", "abba", "b", "abba"},
	{"Trim", "<tag>", "<>", "tag"},
	{"Trim", "* listitem", " *", "listitem"},
	{"Trim", `"quote"`, `"`, "quote"},
	{"Trim", "\u2C6F\u2C6F\u0250\u0250\u2C6F\u2C6F", "\u2C6F", "\u0250\u0250"},
	{"Trim", "\x80test\xff", "\xff", "test"},

pkg syscall (windows-386), const FSCTL_GET_REPARSE_POINT = 589992
pkg syscall (windows-386), const FSCTL_GET_REPARSE_POINT ideal-int
pkg syscall (windows-386), const IO_REPARSE_TAG_SYMLINK = 2684354572
pkg syscall (windows-386), const IO_REPARSE_TAG_SYMLINK ideal-int
pkg syscall (windows-386), const MAXIMUM_REPARSE_DATA_BUFFER_SIZE = 16384
pkg syscall (windows-386), const MAXIMUM_REPARSE_DATA_BUFFER_SIZE ideal-int

pkg debug/dwarf, const TagAtomicType Tag
pkg debug/dwarf, const TagCallSite = 72
pkg debug/dwarf, const TagCallSite Tag
pkg debug/dwarf, const TagCallSiteParameter = 73
pkg debug/dwarf, const TagCallSiteParameter Tag
pkg debug/dwarf, const TagCoarrayType = 68
pkg debug/dwarf, const TagCoarrayType Tag
pkg debug/dwarf, const TagDynamicType = 70
pkg debug/dwarf, const TagDynamicType Tag
pkg debug/dwarf, const TagGenericSubrange = 69

but are otherwise ignored.
</p>

<pre>
struct {
	x, y float64 ""  // an empty tag string is like an absent tag
	name string  "any string is permitted as a tag"
	_    [4]byte "ceci n'est pas un champ de structure"
}

// A struct corresponding to a TimeStamp protocol buffer.
// The tag strings define the protocol buffer field numbers;
// they follow the convention outlined by the reflect package.
struct {

pkg go/build/constraint, type SyntaxError struct, Err string
pkg go/build/constraint, type SyntaxError struct, Offset int
pkg go/build/constraint, type TagExpr struct
pkg go/build/constraint, type TagExpr struct, Tag string
pkg html/template, func ParseFS(fs.FS, ...string) (*Template, error)
pkg html/template, method (*Template) ParseFS(fs.FS, ...string) (*Template, error)
pkg io, func NopCloser(Reader) ReadCloser

pkg syscall (netbsd-386), const RTAX_IFA = 5
pkg syscall (netbsd-386), const RTAX_IFP = 4
pkg syscall (netbsd-386), const RTAX_MAX = 9
pkg syscall (netbsd-386), const RTAX_NETMASK = 2
pkg syscall (netbsd-386), const RTAX_TAG = 8
pkg syscall (netbsd-386), const RTA_AUTHOR = 64
pkg syscall (netbsd-386), const RTA_BRD = 128
pkg syscall (netbsd-386), const RTA_DST = 1
pkg syscall (netbsd-386), const RTA_GATEWAY = 2

pkg syscall (netbsd-386), const RTAX_IFP ideal-int
pkg syscall (netbsd-386), const RTAX_MAX ideal-int
pkg syscall (netbsd-386), const RTAX_NETMASK ideal-int
pkg syscall (netbsd-386), const RTAX_TAG ideal-int
pkg syscall (netbsd-386), const RTA_AUTHOR ideal-int
pkg syscall (netbsd-386), const RTA_BRD ideal-int
pkg syscall (netbsd-386), const RTA_DST ideal-int
pkg syscall (netbsd-386), const RTA_GATEWAY ideal-int