mirror of
https://github.com/Zeckmathederg/glfs.git
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296 lines
9.4 KiB
XML
296 lines
9.4 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
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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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<!-- Also update the download, md5, size entities in libxml2py2.xml -->
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<!ENTITY libxml2-download-http "https://download.gnome.org/sources/libxml2/2.12/libxml2-&libxml2-version;.tar.xz">
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<!-- <!ENTITY libxml2-download-http "http://xmlsoft.org/sources/libxml2-&libxml2-version;.tar.xz">-->
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<!ENTITY libxml2-download-ftp " ">
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<!ENTITY libxml2-md5sum "329138464b69422815c11e62acbc10dd">
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<!ENTITY libxml2-size "2.5 MB">
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<!ENTITY libxml2-buildsize "103 MB (with tests)">
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<!ENTITY libxml2-time "0.4 SBU (Using parallelism=4; with tests)">
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<!ENTITY testsuite-version "20130923">
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]>
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<sect1 id="libxml2" xreflabel="libxml2-&libxml2-version;">
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<?dbhtml filename="libxml2.html"?>
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<title>libxml2-&libxml2-version;</title>
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<indexterm zone="libxml2">
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<primary sortas="a-libxml2">libxml2</primary>
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</indexterm>
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<sect2 role="package">
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<title>Introduction to libxml2</title>
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<para>
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The <application>libxml2</application> package contains libraries
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and utilities used for parsing XML files.
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</para>
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&lfs120_checked;
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<bridgehead renderas="sect3">Package Information</bridgehead>
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<itemizedlist spacing="compact">
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<listitem>
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<para>
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Download (HTTP): <ulink url="&libxml2-download-http;"/>
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</para>
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</listitem>
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<listitem>
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<para>
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Download (FTP): <ulink url="&libxml2-download-ftp;"/>
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</para>
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</listitem>
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<listitem>
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<para>
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Download MD5 sum: &libxml2-md5sum;
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</para>
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</listitem>
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<listitem>
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<para>
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Download size: &libxml2-size;
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</para>
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</listitem>
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<listitem>
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<para>
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Estimated disk space required: &libxml2-buildsize;
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</para>
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</listitem>
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<listitem>
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<para>
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Estimated build time: &libxml2-time;
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</para>
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</listitem>
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</itemizedlist>
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<bridgehead renderas="sect3">Additional Downloads</bridgehead>
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<itemizedlist spacing="compact">
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<listitem>
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<para>
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Optional Test Suite:
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<ulink url="https://www.w3.org/XML/Test/xmlts&testsuite-version;.tar.gz"/> - This
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enables <command>make check</command> to do complete testing.
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</para>
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</listitem>
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</itemizedlist>
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<bridgehead renderas="sect3">libxml2 Dependencies</bridgehead>
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<bridgehead renderas="sect4">Recommended</bridgehead>
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<para role="recommended">
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<xref linkend="icu"/>
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</para>
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<bridgehead renderas="sect4">Optional</bridgehead>
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<para role="optional">
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<xref linkend="valgrind"/> (may be used in the tests)
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</para>
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</sect2>
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<sect2 role="installation">
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<title>Installation of libxml2</title>
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<para>
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Install <application>libxml2</application> by running the following
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commands:
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</para>
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<screen><userinput>./configure --prefix=/usr \
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--sysconfdir=/etc \
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--disable-static \
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--with-history \
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--with-icu \
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PYTHON=/usr/bin/python3 \
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--docdir=/usr/share/doc/libxml2-&libxml2-version; &&
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make</userinput></screen>
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<para>
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If you downloaded the test suite, issue the following command:
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</para>
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<screen><userinput>tar xf ../xmlts&testsuite-version;.tar.gz</userinput></screen>
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<para>
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To test the results, issue: <command>make check > check.log</command>.
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This command will print several lines of error messages like
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<quote><computeroutput>Failed to parse
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xstc/...</computeroutput></quote> because some test files are missing
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and these messages can be safely ignored.
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A summary of the results can be obtained with <command>grep -E
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'^Total|expected|Ran' check.log</command>. If <xref linkend="valgrind"/> is
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installed and you want to check for memory leaks, replace
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<command>check</command> with <command>check-valgrind</command>.
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</para>
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<note>
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<para>
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The tests use <ulink url="http://localhost/">http://localhost/</ulink>
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to test parsing of external entities. If the machine where you run the
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tests serves as a web site, the tests may hang, depending on the
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content of the file served. It is therefore recommended to shut down
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the server during the tests, as the <systemitem
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class="username">root</systemitem> user:
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</para>
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<screen role="nodump" revision="sysv"><userinput>/etc/init.d/httpd stop</userinput></screen>
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<screen role="nodump" revision="systemd"><userinput>systemctl stop httpd.service</userinput></screen>
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</note>
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<para>
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Now, as the <systemitem class="username">root</systemitem> user:
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</para>
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<screen role="root"><userinput>make install</userinput></screen>
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<para>
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Finally, prevent some packages from unnecessarily linking to ICU using
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the following commands as the &root; user:
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</para>
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<screen role="root"><userinput>rm -vf /usr/lib/libxml2.la &&
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sed '/libs=/s/xml2.*/xml2"/' -i /usr/bin/xml2-config</userinput></screen>
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</sect2>
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<sect2 role="commands">
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<title>Command Explanations</title>
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<xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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href="../../xincludes/static-libraries.xml"/>
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<para>
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<parameter>--with-history</parameter>: This switch enables
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<application>Readline</application> support when running
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<command>xmlcatalog</command> or <command>xmllint</command> in shell mode.
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</para>
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<para>
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<parameter>--with-icu</parameter>: This switch enables support for
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<application>ICU</application>, which provides additional Unicode support.
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This is needed for some packages in BLFS, such as for QtWebEngine.
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</para>
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<para>
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<parameter>PYTHON=/usr/bin/python3</parameter>: Allows building
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the libxml2 module with Python3 instead of Python2.
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</para>
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<!--
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<para>
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<option>- -with-icu</option>: Add this switch if you have built
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<xref linkend="icu"/>, for better unicode support.
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</para>
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<note>
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<para>
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If the <option>- -with-icu</option> switch is used, the BLFS editors
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recommend removing unneeded references to the ICU libraries. This
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will prevent many packages that use libxml2 from unnecessarily linking
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to the ICU libraries. This, in turn, will prevent the need for
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rebuilding many packages when upgrading ICU to a new major version.
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After installing libxml2, as the &root; user, issue:
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</para>
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<screen role="nodump"><userinput>rm -vf /usr/lib/libxml2.la &&
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sed '/libs=/s/xml2.*/xml2"/' -i /usr/bin/xml2-config</userinput></screen>
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</note>
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-->
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</sect2>
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<sect2 role="content">
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<title>Contents</title>
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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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<segtitle>Installed Directories</segtitle>
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<seglistitem>
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<seg>
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xml2-config,
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xmlcatalog, and
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xmllint
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</seg>
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<seg>
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libxml2.so
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</seg>
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<seg>
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/usr/include/libxml2,
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/usr/lib/cmake/libxml2,
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/usr/share/doc/libxml2-&libxml2-version;, and
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/usr/share/gtk-doc/html/libxml2
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</seg>
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</seglistitem>
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</segmentedlist>
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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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<varlistentry id="xml2-config">
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<term><command>xml2-config</command></term>
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<listitem>
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<para>
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determines the compile and linker flags that should be used to
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compile and link programs that use
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<filename class="libraryfile">libxml2</filename>
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</para>
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<indexterm zone="libxml2 xml2-config">
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<primary sortas="b-xml2-config">xml2-config</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="xmlcatalog">
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<term><command>xmlcatalog</command></term>
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<listitem>
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<para>
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is used to monitor and manipulate XML and SGML catalogs
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</para>
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<indexterm zone="libxml2 xmlcatalog">
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<primary sortas="b-xmlcatalog">xmlcatalog</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="xmllint">
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<term><command>xmllint</command></term>
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<listitem>
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<para>
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parses XML files and outputs reports (based upon options) to detect
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errors in XML coding
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</para>
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<indexterm zone="libxml2 xmllint">
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<primary sortas="b-xmllint">xmllint</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="libxml2-lib">
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<term><filename class="libraryfile">libxml2.so</filename></term>
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<listitem>
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<para>
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provides functions for programs to parse files that use the XML
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format
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</para>
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<indexterm zone="libxml2 libxml2-lib">
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<primary sortas="c-libxml2">libxml2.so</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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</variablelist>
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</sect2>
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</sect1>
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