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+<?xml version="1.0" encoding="ISO-8859-1"?>
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+<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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+ "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
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+ <!ENTITY % general-entities SYSTEM "../general.ent">
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+ %general-entities;
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+]>
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+
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+<sect1 id="ch-system-dbus" role="wrap">
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+ <?dbhtml filename="dbus.html"?>
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+
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+ <sect1info condition="script">
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+ <productname>dbus</productname>
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+ <productnumber>&dbus-version;</productnumber>
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+ <address>&dbus-url;</address>
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+ </sect1info>
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+
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+ <title>D-Bus-&dbus-version;</title>
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+
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+ <indexterm zone="ch-system-dbus">
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+ <primary sortas="a-dbus">D-Bus</primary>
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+ </indexterm>
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+
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+ <sect2 role="package">
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+ <title/>
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+
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+ <para>D-Bus is a message bus system, a simple way for applications to talk
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+ to one another. D-Bus supplies both a system daemon (for events such as
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+ “new hardware device added” or “printer queue changed”) and a
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+ per-user-login-session daemon (for general IPC needs among user
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+ applications). Also, the message bus is built on top of a general one-to-one
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+ message passing framework, which can be used by any two applications to
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+ communicate directly (without going through the message bus daemon).</para>
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+
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+ <segmentedlist>
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+ <segtitle>&buildtime;</segtitle>
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+ <segtitle>&diskspace;</segtitle>
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+
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+ <seglistitem>
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+ <seg>&dbus-ch6-sbu;</seg>
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+ <seg>&dbus-ch6-du;</seg>
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+ </seglistitem>
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+ </segmentedlist>
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+
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+ </sect2>
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+
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+ <sect2 role="installation">
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+ <title>Installation of D-Bus</title>
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+
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+ <para>The D-Bus system daemon (the message bus) needs to run as a non-priveleged user, so create a suitable group and user:</para>
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+
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+<screen><userinput remap="pre">groupadd -g 18 messagebus
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+useradd -c "D-Bus Message Daemon User" -d /var/run/dbus \
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+ -u 18 -g messagebus -s /bin/false messagebus</userinput></screen>
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+
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+ <para>Prepare D-Bus for compilation:</para>
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+
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+<screen><userinput remap="configure">./configure --prefix=/usr \
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+ --sysconfdir=/etc \
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+ --localstatedir=/var \
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+ --docdir=/usr/share/doc/dbus-&dbus-version; \
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+ --libexecdir=/usr/lib/dbus-1.0 \
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+ --with-console-auth-dir=/run/console/ \
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+ --without-systemdsystemunitdir \
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+ --disable-systemd</userinput></screen>
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+
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+ <variablelist>
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+ <title>The meaning of the configure options:</title>
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+
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+ <varlistentry>
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+ <term><parameter>--with-console-auth-dir=/run/console</parameter></term>
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+ <listitem>
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+ <para>This specifies the location of the ConsoleKit auth
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+ directory.</para>
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+ </listitem>
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+ </varlistentry>
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+
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+ <varlistentry>
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+ <term><parameter>--without-systemdsystemunitdir</parameter></term>
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+ <listitem>
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+ <para>This prevents installation of Systemd unit files as Systemd
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+ has not been installed yet (due to a circular dependency; Systemd
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+ requires D-Bus, but D-Bus can also use Systemd functionality).</para>
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+ </listitem>
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+ </varlistentry>
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+
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+ <varlistentry>
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+ <term><parameter>--disable-systemd</parameter></term>
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+ <listitem>
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+ <para>This disables Systemd support in D-Bus, again due to the
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+ circular dependency between D-Bus and Systemd.</para>
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+ </listitem>
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+ </varlistentry>
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+
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+ </variablelist>
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+
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+ <para>Compile the package:</para>
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+
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+<screen><userinput remap="make">make</userinput></screen>
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+
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+ <para>This package does come with a testsuite, but it requires several
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+ packages that are not included in LFS.</para>
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+
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+ <para>Install the package:</para>
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+
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+<screen><userinput remap="install">make install</userinput></screen>
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+
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+ </sect2>
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+
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+ <sect2 id="contents-dbus" role="content">
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+ <title>Contents of D-Bus</title>
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+
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+ <segmentedlist>
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+ <segtitle>Installed programs</segtitle>
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+ <segtitle>Installed libraries</segtitle>
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+
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+ <seglistitem>
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+ <seg>dbus-cleanup-sockets, dbus-daemon, dbus-monitor, dbus-send,
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+ dbus-uuidgen</seg>
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+ <seg>libdbus-1.{so,a}</seg>
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+ </seglistitem>
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+ </segmentedlist>
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+
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+ <variablelist>
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+ <bridgehead renderas="sect3">Short Descriptions</bridgehead>
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+ <?dbfo list-presentation="list"?>
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+ <?dbhtml list-presentation="table"?>
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+
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+ <varlistentry id="dbus-cleanup-sockets">
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+ <term><command>dbus-cleanup-sockets</command></term>
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+ <listitem>
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+ <para>Used to clean up leftover sockets in a directory.</para>
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+ <indexterm zone="ch-system-dbus dbus-cleanup-sockets">
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+ <primary sortas="b-dbus-cleanup-sockets">dbus-cleanup-sockets</primary>
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+ </indexterm>
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+ </listitem>
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+ </varlistentry>
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+
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+ <varlistentry id="dbus-daemon">
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+ <term><command>dbus-daemon</command></term>
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+ <listitem>
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+ <para>The D-Bus message bus daemon.</para>
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+ <indexterm zone="ch-system-dbus dbus-daemon">
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+ <primary sortas="b-dbus-daemon">dbus-daemon</primary>
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+ </indexterm>
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+ </listitem>
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+ </varlistentry>
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+
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+ <varlistentry id="dbus-monitor">
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+ <term><command>dbus-monitor</command></term>
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+ <listitem>
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+ <para>Monitors messages passing through a D-Bus message bus.</para>
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+ <indexterm zone="ch-system-dbus dbus-monitor">
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+ <primary sortas="b-dbus-monitor">dbus-monitor</primary>
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+ </indexterm>
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+ </listitem>
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+ </varlistentry>
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+
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+ <varlistentry id="dbus-send">
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+ <term><command>dbus-send</command></term>
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+ <listitem>
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+ <para>Sends a message to a D-Bus message bus.</para>
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+ <indexterm zone="ch-system-dbus dbus-send">
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+ <primary sortas="b-dbus-send">dbus-send</primary>
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+ </indexterm>
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+ </listitem>
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+ </varlistentry>
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+
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+ <varlistentry id="dbus-uuidgen">
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+ <term><command>dbus-uuidgen</command></term>
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+ <listitem>
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+ <para>Generates a universally unique ID.</para>
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+ <indexterm zone="ch-system-dbus dbus-uuidgen">
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+ <primary sortas="b-dbus-uuidgen">dbus-uuidgen</primary>
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+ </indexterm>
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+ </listitem>
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+ </varlistentry>
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+
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+ <varlistentry id="libdbus">
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+ <term><filename class="libraryfile">libdbus.{so,a}</filename></term>
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+ <listitem>
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+ <para>Contains API functions used to communicate with the D-Bus
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+ message bus.</para>
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+ <indexterm zone="ch-system-dbus libdbus">
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+ <primary sortas="c-libdbus">libdbus</primary>
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+ </indexterm>
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+ </listitem>
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+ </varlistentry>
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+
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+ </variablelist>
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+
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+ </sect2>
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+
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+</sect1>
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Matthew Burgess