// addresses, it is kept balanced on average by maintaining a heap ordering
	// on the ticket: s.ticket <= both s.prev.ticket and s.next.ticket.
	// https://en.wikipedia.org/wiki/Treap
	// https://faculty.washington.edu/aragon/pubs/rst89.pdf
	//
	// s.ticket compared with zero in couple of places, therefore set lowest bit.
	// It will not affect treap's quality noticeably.
	s.ticket = cheaprand() | 1
	s.parent = last
	*pt = s

}

// sysStat, if non-nil, populates h from system-dependent fields of fi.
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)

	if err := os.Symlink(dir, abslink); err != nil {
		t.Fatal(err)
	}

	linklink := filepath.Join(td, "linklink")
	if err := os.Symlink("link", linklink); err != nil {
		t.Fatal(err)
	}

	// Per https://pubs.opengroup.org/onlinepubs/9699919799.2013edition/basedefs/V1_chap04.html#tag_04_12:
	// “A pathname that contains at least one non- <slash> character and that ends
	// with one or more trailing <slash> characters shall not be resolved

http://deeplearning.cs.cmu.edu/pdfs/Hochreiter97_lstm.pdf
S. Hochreiter and J. Schmidhuber. 'Long Short-Term Memory'. Neural Computation,
9(8):1735-1780, 1997.
The peephole implementation is based on:
https://research.google.com/pubs/archive/43905.pdf
Hasim Sak, Andrew Senior, and Francoise Beaufays. 'Long short-term memory
recurrent neural network architectures for large scale acoustic modeling.'
INTERSPEECH, 2014.

        def publication = pub('mock', "pub-group", "pub-name", "pub-version", root)
        def publication2 = pub('pub2', "pub-group-child1", "pub-name-child1", "pub-version-child1", child1)
        def publication3 = pub('pub3', "pub-group-child2", "pub-name-child2", "pub-version-child2", child2)
        def publication4 = pub('pub4', "pub-group-child3", "pub-name-child3", "pub-version-child3", child3)

        and:
        def pub1 = publications.publications.find { it.id.group == "test.org" }
        pub1 != null
        pub1.id.name == "test-module"
        pub1.id.version == "1.1"

        and:
        def pub2 = publications.publications.find { it.id.group == "test.groupId" }
        pub2 != null
        pub2.id.name == "test-artifactId"
        pub2.id.version == "1.2"
    }

Sveinn <******@****.***> 1717573873 -0700

Sveinn <******@****.***> 1717573873 -0700

	return envList("PKG_CONFIG", cfg.DefaultPkgConfig)[0]
}

// splitPkgConfigOutput parses the pkg-config output into a slice of flags.
// This implements the shell quoting semantics described in
// https://pubs.opengroup.org/onlinepubs/9699919799/utilities/V3_chap02.html#tag_18_02,
// except that it does not support parameter or arithmetic expansion or command
// substitution and hard-codes the <blank> delimiters instead of reading them

	eventtype := s.u.eventtype()
	switch mode {
	case 'r':
		*eventtype = eventtypeFdRead
		ridx = len(subs)
	case 'w':
		*eventtype = eventtypeFdWrite
		widx = len(subs)
	}

	if len(subs) == disarmed {
		throw("overflow")
	}

	pd.user = uint32(ridx)<<16 | uint32(widx)

	subs = append(subs, s)
	evts = append(evts, event{})

	unlock(&mtx)
}