1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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3 | "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
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4 | <!ENTITY % general-entities SYSTEM "../../general.ent">
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5 | %general-entities;
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6 |
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7 | <!-- Also update the download, md5, size entities in libxml2py2.xml -->
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8 | <!ENTITY libxml2-download-http "http://xmlsoft.org/sources/libxml2-&libxml2-version;.tar.gz">
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9 | <!ENTITY libxml2-download-ftp "ftp://xmlsoft.org/libxml2/libxml2-&libxml2-version;.tar.gz">
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10 | <!ENTITY libxml2-md5sum "b786e353e2aa1b872d70d5d1ca0c740d">
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11 | <!ENTITY libxml2-size "5.2 MB">
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12 | <!ENTITY libxml2-buildsize "83 MB (add 15 MB for tests)">
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13 | <!ENTITY libxml2-time "0.2 SBU (add 0.3 SBU for tests)">
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14 | <!ENTITY testsuite-version "20130923">
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15 | ]>
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16 |
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17 | <sect1 id="libxml2" xreflabel="libxml2-&libxml2-version;">
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18 | <?dbhtml filename="libxml2.html"?>
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19 |
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20 | <sect1info>
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21 | <othername>$LastChangedBy$</othername>
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22 | <date>$Date$</date>
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23 | </sect1info>
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24 |
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25 | <title>libxml2-&libxml2-version;</title>
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26 |
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27 | <indexterm zone="libxml2">
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28 | <primary sortas="a-libxml2">libxml2</primary>
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29 | </indexterm>
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30 |
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31 | <sect2 role="package">
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32 | <title>Introduction to libxml2</title>
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33 |
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34 | <para>
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35 | The <application>libxml2</application> package contains libraries
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36 | and utilities used for parsing XML files.
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37 | </para>
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38 |
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39 | &lfs82_checked;
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40 |
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41 | <bridgehead renderas="sect3">Package Information</bridgehead>
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42 | <itemizedlist spacing="compact">
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43 | <listitem>
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44 | <para>
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45 | Download (HTTP): <ulink url="&libxml2-download-http;"/>
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46 | </para>
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47 | </listitem>
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48 | <listitem>
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49 | <para>
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50 | Download (FTP): <ulink url="&libxml2-download-ftp;"/>
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51 | </para>
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52 | </listitem>
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53 | <listitem>
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54 | <para>
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55 | Download MD5 sum: &libxml2-md5sum;
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56 | </para>
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57 | </listitem>
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58 | <listitem>
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59 | <para>
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60 | Download size: &libxml2-size;
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61 | </para>
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62 | </listitem>
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63 | <listitem>
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64 | <para>
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65 | Estimated disk space required: &libxml2-buildsize;
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66 | </para>
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67 | </listitem>
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68 | <listitem>
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69 | <para>
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70 | Estimated build time: &libxml2-time;
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71 | </para>
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72 | </listitem>
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73 | </itemizedlist>
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74 |
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75 | <bridgehead renderas="sect3">Additional Downloads</bridgehead>
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76 | <itemizedlist spacing="compact">
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77 | <listitem>
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78 | <para>
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79 | Optional Testsuite:
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80 | <ulink url="http://www.w3.org/XML/Test/xmlts&testsuite-version;.tar.gz"/> - This
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81 | enables <command>make check</command> to do complete testing.
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82 | </para>
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83 | </listitem>
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84 |
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85 | <listitem>
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86 | <para>
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87 | Recommended patch to prevent a segfault in itstool when using Python3:
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88 | <ulink url="&patch-root;/libxml2-&libxml2-version;-python3_hack-1.patch"/>
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89 | </para>
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90 | </listitem>
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91 | </itemizedlist>
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92 |
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93 | <bridgehead renderas="sect3">libxml2 Dependencies</bridgehead>
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94 |
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95 | <bridgehead renderas="sect4">Optional</bridgehead>
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96 | <para role="optional">
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97 | <xref linkend="python2"/> <!--or <xref linkend="python3"/> (to build and
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98 | install a <application>Python</application> library module, additionally
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99 | it is required to run the full suite of tests)-->
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100 | <!-- As discovered by Bruce, itstool needs this module. -->
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101 | </para>
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102 |
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103 | <note>
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104 | <para>
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105 | Some packages which utilize <application>libxml2</application> (such as
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106 | <application>GNOME Doc Utils</application>) need the
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107 | <application>Python3</application> module installed to function properly
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108 | and some packages will not build properly if the
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109 | <application>Python3</application> module is not available.
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110 | </para>
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111 |
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112 | <para>
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113 | The old <application>Python2</application> module can be built after
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114 | <filename class="libraryfile">libxml2.so</filename> has been installed,
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115 | see <xref linkend="libxml2py2"/>.
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116 | </para>
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117 | </note>
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118 |
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119 | <bridgehead renderas="sect4">Optional</bridgehead>
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120 | <para role="optional">
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121 | <xref linkend="icu"/> and
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122 | <xref linkend="valgrind"/> (may be used in the tests)
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123 | </para>
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124 |
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125 | <para condition="html" role="usernotes">
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126 | User Notes: <ulink url="&blfs-wiki;/libxml2"/>
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127 | </para>
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128 | </sect2>
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129 |
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130 | <sect2 role="installation">
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131 | <title>Installation of libxml2</title>
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132 |
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133 | <para>
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134 | First apply a patch, which prevents segfaults in the Python module, when
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135 | built by <xref linkend="python3"/>:
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136 | </para>
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137 |
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138 | <screen><userinput>patch -Np1 -i ../libxml2-&libxml2-version;-python3_hack-1.patch</userinput></screen>
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139 |
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140 | <para>
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141 | To ensure that the <application>Python</application> module can be
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142 | built by <xref linkend="python3"/>, run:
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143 | </para>
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144 |
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145 | <screen><userinput>sed -i '/_PyVerify_fd/,+1d' python/types.c</userinput></screen>
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146 |
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147 | <para>
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148 | Install <application>libxml2</application> by running the following
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149 | commands:
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150 | </para>
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151 |
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152 | <screen><userinput>./configure --prefix=/usr \
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153 | --disable-static \
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154 | --with-history \
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155 | --with-python=/usr/bin/python3 &&
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156 | make</userinput></screen>
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157 |
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158 | <para>If you downloaded the testsuite, issue the following command:</para>
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159 |
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160 | <screen><userinput>tar xf ../xmlts&testsuite-version;.tar.gz</userinput></screen>
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161 |
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162 | <para>
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163 | To test the results, issue: <command>make check > check.log</command>.
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164 | A summary of the results can be obtained with <command>grep -E
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165 | '^Total|expected' check.log</command>. If <xref linkend="valgrind"/> is
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166 | installed and you want to check memory leaks, replace
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167 | <command>check</command> with <command>check-valgrind</command>.
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168 | </para>
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169 |
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170 | <note>
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171 | <para>
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172 | The tests use <ulink url="http://localhost/">http://localhost/</ulink>
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173 | to test parsing of external entities. If the machine where you run the
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174 | tests serves as a web site, the tests may hang, depending on the
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175 | content of the file served. It is therefore recommended to shut down
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176 | the server during the tests, as the <systemitem
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177 | class="username">root</systemitem> user:
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178 | </para>
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179 |
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180 | <screen role="nodump" revision="sysv"><userinput>/etc/init.d/httpd stop</userinput></screen>
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181 | <screen role="nodump" revision="systemd"><userinput>systemctl stop httpd.service</userinput></screen>
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182 |
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183 | </note>
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184 | <para>
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185 | Now, as the <systemitem class="username">root</systemitem> user:
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186 | </para>
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187 |
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188 | <screen role="root"><userinput>make install</userinput></screen>
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189 | </sect2>
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190 |
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191 | <sect2 role="commands">
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192 | <title>Command Explanations</title>
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193 |
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194 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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195 | href="../../xincludes/static-libraries.xml"/>
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196 |
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197 | <para>
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198 | <parameter>sed -i '/_PyVerify_fd/,+1d' python/types.c</parameter>: This
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199 | fixes the <application>Python3</application> code to build with
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200 | <application>gcc-7</application>.
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201 | </para>
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202 |
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203 | <para>
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204 | <parameter>--with-history</parameter>: This switch enables
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205 | <application>Readline</application> support when running
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206 | <command>xmlcatalog</command> or <command>xmllint</command> in shell mode.
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207 | </para>
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208 |
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209 | <para>
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210 | <parameter>--with-python=/usr/bin/python3</parameter>: Allows to build
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211 | the libxml2 module with Python3 instead of Python2.
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212 | </para>
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213 |
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214 | <para>
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215 | <option>--with-icu</option>: Add this switch if you have built
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216 | <xref linkend="icu"/>, for better unicode support.
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217 | </para>
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218 |
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219 | <para>
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220 | <option>--with-threads</option>: Add this switch to enable multithread
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221 | support.
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222 | </para>
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223 |
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224 | </sect2>
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225 |
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226 | <sect2 role="content">
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227 | <title>Contents</title>
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228 |
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229 | <segmentedlist>
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230 | <segtitle>Installed Programs</segtitle>
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231 | <segtitle>Installed Libraries</segtitle>
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232 | <segtitle>Installed Directories</segtitle>
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233 |
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234 | <seglistitem>
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235 | <seg>
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236 | xml2-config, xmlcatalog, xmllint and the
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237 | drv_libxml2.py and libxml2.py <application>Python3</application>
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238 | modules.
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239 | </seg>
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240 | <seg>
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241 | libxml2.so and optionally, the libxml2mod.so
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242 | <application>Python3</application> module
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243 | </seg>
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244 | <seg>
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245 | /usr/include/libxml2,
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246 | /usr/lib/cmake/libxml2,
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247 | /usr/share/doc/libxml2-&libxml2-version;,
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248 | /usr/share/doc/libxml2-python-&libxml2-version;, and
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249 | /usr/share/gtk-doc/html/libxml2
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250 | </seg>
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251 | </seglistitem>
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252 | </segmentedlist>
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253 |
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254 | <variablelist>
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255 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
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256 | <?dbfo list-presentation="list"?>
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257 | <?dbhtml list-presentation="table"?>
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258 |
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259 | <varlistentry id="xml2-config">
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260 | <term><command>xml2-config</command></term>
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261 | <listitem>
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262 | <para>
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263 | determines the compile and linker flags that should be used to
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264 | compile and link programs that use
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265 | <filename class='libraryfile'>libxml2</filename>.
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266 | </para>
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267 | <indexterm zone="libxml2 xml2-config">
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268 | <primary sortas="b-xml2-config">xml2-config</primary>
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269 | </indexterm>
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270 | </listitem>
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271 | </varlistentry>
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272 |
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273 | <varlistentry id="xmlcatalog">
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274 | <term><command>xmlcatalog</command></term>
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275 | <listitem>
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276 | <para>
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277 | is used to monitor and manipulate XML and SGML catalogs.
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278 | </para>
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279 | <indexterm zone="libxml2 xmlcatalog">
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280 | <primary sortas="b-xmlcatalog">xmlcatalog</primary>
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281 | </indexterm>
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282 | </listitem>
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283 | </varlistentry>
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284 |
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285 | <varlistentry id="xmllint">
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286 | <term><command>xmllint</command></term>
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287 | <listitem>
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288 | <para>
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289 | parses XML files and outputs reports (based upon options) to detect
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290 | errors in XML coding.
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291 | </para>
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292 | <indexterm zone="libxml2 xmllint">
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293 | <primary sortas="b-xmllint">xmllint</primary>
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294 | </indexterm>
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295 | </listitem>
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296 | </varlistentry>
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297 |
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298 | <varlistentry id="drv_libxml2.py3">
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299 | <term><command>drv_libxml2.py</command></term>
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300 | <listitem>
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301 | <para>
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302 | is a SAX <application>Python3</application> driver for libxml2.
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303 | </para>
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304 | <indexterm zone="libxml2 drv_libxml2.py3">
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305 | <primary sortas="b-drv_libxml2.py3">drv_libxml2.py for Python3</primary>
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306 | </indexterm>
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307 | </listitem>
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308 | </varlistentry>
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309 |
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310 | <varlistentry id="libxml2.py3">
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311 | <term><command>libxml2.py</command></term>
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312 | <listitem>
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313 | <para>
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314 | is the <application>Python3</application> binding for libxml2.
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315 | </para>
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316 | <indexterm zone="libxml2 libxml2.py3">
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317 | <primary sortas="b-libxml2.py3">libxml2.py for Python3</primary>
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318 | </indexterm>
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319 | </listitem>
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320 | </varlistentry>
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321 |
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322 | <varlistentry id="libxml2-lib">
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323 | <term><filename class="libraryfile">libxml2.so</filename></term>
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324 | <listitem>
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325 | <para>
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326 | provides functions for programs to parse files that use the XML
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327 | format.
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328 | </para>
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329 | <indexterm zone="libxml2 libxml2-lib">
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330 | <primary sortas="c-libxml2">libxml2.so</primary>
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331 | </indexterm>
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332 | </listitem>
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333 | </varlistentry>
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334 |
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335 | <varlistentry id="libxml2mod3">
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336 | <term><filename class="libraryfile">libxml2mod.so</filename></term>
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337 | <listitem>
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338 | <para>
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339 | is the interface for <application>Python3</application>
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340 | to use <filename class="libraryfile">libxml2.so</filename>.
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341 | </para>
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342 | <indexterm zone="libxml2 libxml2mod3">
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343 | <primary sortas="c-libxml2mod">libxml2mod.so</primary>
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344 | </indexterm>
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345 | </listitem>
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346 | </varlistentry>
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347 |
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348 | </variablelist>
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349 |
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350 | </sect2>
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351 |
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352 | </sect1>
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