1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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2 | <!DOCTYPE appendix 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 |
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8 | <appendix id="appendixd-common" xreflabel="Appendix D">
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9 | <?dbhtml dir="appendixd"?>
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10 | <?dbhtml filename="rationale-common.html"?>
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11 |
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12 | <title>Package Rationale</title>
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13 |
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14 | <para>CLFS includes many packages, a number of which might not necessarily
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15 | be required for a "minimal" system, but still considered very useful. The
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16 | purpose of this page is to list the reasoning for each package's inclusion
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17 | in the book.</para>
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18 |
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19 | <itemizedlist>
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20 |
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21 | <listitem>
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22 | <para>ACL</para>
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23 | <para>The ACL package allows usage and setting of POSIX Access Control
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24 | Lists. It can be used by several other packages in CLFS, such as Coreutils
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25 | and Systemd.</para>
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26 | </listitem>
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27 |
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28 | <listitem>
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29 | <para>Attr</para>
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30 | <para>Attr allows setting and viewing extended attributes of filesystem
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31 | objects. It is required by Systemd.</para>
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32 | </listitem>
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33 |
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34 | <listitem>
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35 | <para>Autoconf</para>
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36 | <para>The Autoconf package contains programs for producing shell scripts
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37 | that can automatically configure source code. This is useful for software
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38 | developers, as well as anyone who wants to install packages that don't
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39 | come with a configure script, such as some of the packages in CBLFS.</para>
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40 | </listitem>
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41 |
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42 | <listitem>
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43 | <para>Automake</para>
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44 | <para>The Automake package contains programs for generating Makefiles
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45 | for use with Autoconf. This can be useful to software developers.</para>
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46 | </listitem>
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47 |
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48 | <listitem>
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49 | <para>Bash</para>
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50 | <para>This package contains the Bourne-Again SHell. A shell is an
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51 | important component of a Linux system, as there must be some way of
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52 | allowing the users to enter commands.</para>
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53 | </listitem>
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54 |
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55 | <listitem>
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56 | <para>Bc</para>
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57 | <para>This package contains a precision calculator. The Linux kernel
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58 | uses Bc to render the timeconst header.</para>
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59 | </listitem>
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60 |
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61 |
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62 | <listitem>
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63 | <para>Binutils</para>
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64 | <para>This package contains programs for handling object files. The
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65 | programs in this package are needed for compiling most of the packages
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66 | in CLFS.</para>
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67 | </listitem>
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68 |
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69 | <listitem>
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70 | <para>Bison</para>
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71 | <para>This package contains programs that are required by several
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72 | packages in CLFS.</para>
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73 | </listitem>
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74 |
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75 | <listitem>
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76 | <para>Bzip2</para>
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77 | <para>The programs in this package are useful for compressing files to
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78 | reduce size. They are also needed to uncompress tarballs for many
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79 | CLFS packages.</para>
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80 | </listitem>
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81 |
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82 | <listitem>
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83 | <para>CLFS-Bootscripts</para>
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84 | <para>This package contains a number of scripts that run at boottime,
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85 | performing essential tasks such as mounting/checking filesystems and
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86 | starting the network interface.</para>
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87 | </listitem>
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88 |
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89 | <listitem>
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90 | <para>Check</para>
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91 | <para>This package contains a test harness for other programs. It is
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92 | used for some packages' test suites.</para>
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93 | </listitem>
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94 |
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95 | <listitem>
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96 | <para>CLooG</para>
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97 | <para>This package is used by GCC to enable its Graphite loop generation
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98 | code.</para>
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99 | </listitem>
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100 |
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101 | <listitem>
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102 | <para>Coreutils</para>
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103 | <para>This package contains many basic command-line file-management
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104 | tools, required for installation of every package in CLFS.</para>
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105 | </listitem>
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106 |
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107 | <listitem>
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108 | <para>D-Bus</para>
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109 | <para>D-Bus is a message bus system, which allows applications to
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110 | communicate to each other. It is used by Systemd.</para>
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111 | </listitem>
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112 |
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113 | <listitem>
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114 | <para>DejaGNU</para>
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115 | <para>This package is needed for the test suites of several packages,
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116 | especially GCC and Binutils.</para>
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117 | </listitem>
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118 |
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119 | <listitem>
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120 | <para>DHCPCD</para>
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121 | <para>This package allows for automatic configuration of network
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122 | interfaces from a DHCP server. It (or some other package providing a
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123 | DHCP client is needed to connect to a DHCP server.</para>
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124 | </listitem>
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125 |
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126 | <listitem>
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127 | <para>Diffutils</para>
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128 | <para>This package contains programs to compare files, and can also
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129 | be used to create patches. It is required by the installation procedures
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130 | of many CLFS packages, and used by many packages' test suites.</para>
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131 | </listitem>
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132 |
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133 | <listitem>
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134 | <para>Eudev</para>
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135 | <para>This is a package that allows for dynamic creation of device nodes.
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136 | It is a fork of Udev, which is now part of Systemd. It is still
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137 | used for the "Boot" method in the temp-system, as Systemd is not needed
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138 | there.</para>
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139 | </listitem>
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140 |
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141 | <listitem>
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142 | <para>Expect</para>
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143 | <para>This package is needed for the test suites for several packages.</para>
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144 | </listitem>
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145 |
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146 | <listitem>
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147 | <para>E2fsprogs</para>
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148 | <para>The programs in this package are used for the creation and
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149 | maintenance of ext2/3/4 filesystems.</para>
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150 | </listitem>
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151 |
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152 | <listitem>
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153 | <para>File</para>
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154 | <para>This package contains a program that determines the type of
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155 | a given file. It is needed by some CLFS packages.</para>
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156 | </listitem>
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157 |
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158 | <listitem>
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159 | <para>Findutils</para>
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160 | <para>This package contains programs for finding files based on certain
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161 | criteria, and optionally performing commands on them. These programs
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162 | are used by the installation procedures of many CLFS packages.</para>
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163 | </listitem>
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164 |
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165 | <listitem>
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166 | <para>Flex</para>
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167 | <para>This package contains a tool for generating text scanners. It is
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168 | used by multiple packages in CLFS</para>
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169 | </listitem>
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170 |
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171 | <listitem>
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172 | <para>Gawk</para>
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173 | <para>This package contains programs for manipulating text files, using
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174 | the AWK language. It is used by the installation procedures of many
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175 | packages in CLFS.</para>
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176 | </listitem>
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177 |
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178 | <listitem>
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179 | <para>Gcc</para>
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180 | <para>This package contains a C compiler, which is required to compile
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181 | most of the packages in CLFS.</para>
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182 | </listitem>
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183 |
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184 | <listitem>
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185 | <para>GDBM</para>
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186 | <para>This package contains the GNU Database Manager library. Man-DB
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187 | requires either GDBM or Berkeley DB, though it prefers GDBM.</para>
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188 | </listitem>
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189 |
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190 | <listitem>
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191 | <para>Gettext</para>
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192 | <para>A tool that allows programmers to easily implement i18n
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193 | (internationalization) in their programs. It is a required dependency
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194 | for a number of packages</para>
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195 | </listitem>
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196 |
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197 | <listitem>
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198 | <para>Glibc</para>
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199 | <para>Any dynamically-linked C program (nearly every package in CLFS
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200 | has these) needs a C library to compile and run.</para>
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201 | </listitem>
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202 |
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203 | <listitem>
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204 | <para>GMP</para>
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205 | <para>This package is required by GCC.</para>
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206 | </listitem>
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207 |
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208 | <listitem>
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209 | <para>Gperf</para>
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210 | <para>This package is required by Systemd.</para>
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211 | </listitem>
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212 |
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213 | <listitem>
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214 | <para>Grep</para>
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215 | <para>This package contains programs for searching for text in files.
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216 | These programs are required by many packages in CLFS.</para>
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217 | </listitem>
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218 |
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219 | <listitem>
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220 | <para>Groff</para>
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221 | <para>This package is required by Man-DB.</para>
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222 | </listitem>
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223 |
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224 | <listitem>
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225 | <para>Gzip</para>
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226 | <para>Useful for compressing files to reduce size. It is also needed to
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227 | uncompress tarballs for many CLFS packages</para>
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228 | </listitem>
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229 |
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230 | <listitem>
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231 | <para>Iana-Etc</para>
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232 | <para>This package provides the <filename>/etc/services</filename> and
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233 | <filename>/etc/protocols</filename> files. These files map port names to
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234 | port numbers as well as protocol names to their corresponding numbers.
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235 | These files are essential for many network based programs to work properly.</para>
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236 | </listitem>
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237 |
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238 | <listitem>
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239 | <para>Intltool</para>
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240 | <para>This package is required by Systemd.</para>
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241 | </listitem>
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242 |
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243 | <listitem>
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244 | <para>IProute2</para>
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245 | <para>This package contains programs for administering network
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246 | interfaces.</para>
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247 | </listitem>
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248 |
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249 | <listitem>
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250 | <para>IPutils</para>
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251 | <para>This package contains several basic network-management tools.</para>
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252 | </listitem>
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253 |
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254 | <listitem>
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255 | <para>ISL</para>
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256 | <para>This package is required by CLooG.</para>
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257 | </listitem>
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258 |
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259 | <listitem>
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260 | <para>Kbd</para>
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261 | <para>Contains keytable files and keyboard utilities compatible with the
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262 | Linux kernel. These can be used to change the display font and keyboard
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263 | layout.</para>
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264 | </listitem>
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265 |
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266 | <listitem>
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267 | <para>Kmod</para>
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268 | <para>This package contains programs that assist in loading an unloading
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269 | kernel modules.</para>
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270 | </listitem>
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271 |
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272 | <listitem>
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273 | <para>Less</para>
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274 | <para>A program that lets you view text files one page at a time.
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275 | It is also used by Man-DB for displaying manpages.</para>
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276 | </listitem>
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277 |
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278 | <listitem>
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279 | <para>Libcap</para>
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280 | <para>This package is required by Systemd.</para>
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281 | </listitem>
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282 |
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283 | <listitem>
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284 | <para>Libpipeline</para>
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285 | <para>The Libpipeline package contains a library for manipulating
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286 | pipelines of subprocesses in a flexible and convenient way. It is
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287 | required by the Man-DB package.</para>
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288 | </listitem>
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289 |
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290 | <listitem>
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291 | <para>Libtool</para>
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292 | <para>The Libtool package contains the GNU generic library support
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293 | script. It is used by some CLFS packages.</para>
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294 | </listitem>
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295 |
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296 | <listitem>
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297 | <para>Linux-Headers</para>
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298 | <para>This package consists of santized headers from the Linux Kernel.
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299 | These headers are required for Glibc to compile.</para>
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300 | </listitem>
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301 |
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302 | <listitem>
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303 | <para>Linux Kernel</para>
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304 | <para>The Linux operating system.</para>
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305 | </listitem>
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306 |
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307 | <listitem>
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308 | <para>M4</para>
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309 | <para>This package contains a macro processor. It is required by several
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310 | CLFS packages, including Bison.</para>
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311 | </listitem>
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312 |
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313 | <listitem>
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314 | <para>Make</para>
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315 | <para>This is required for installation of most CLFS packages</para>
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316 | </listitem>
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317 |
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318 | <listitem>
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319 | <para>Man-DB</para>
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320 | <para>This package contains programs for finding and viewing man pages,
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321 | and has superior internationalization capabilities compared to the
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322 | <application>Man</application> package.</para>
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323 | </listitem>
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324 |
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325 | <listitem>
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326 | <para>Man-Pages</para>
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327 | <para>A number of useful manpages, not supplied by other packages</para>
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328 | </listitem>
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329 |
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330 | <listitem>
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331 | <para>MPC</para>
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332 | <para>This package is required by GCC.</para>
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333 | </listitem>
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334 |
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335 | <listitem>
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336 | <para>MPFR</para>
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337 | <para>This package is required by GCC.</para>
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338 | </listitem>
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339 |
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340 | <listitem>
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341 | <para>Ncurses</para>
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342 | <para>Needed by several packages in CLFS, such as Vim, Bash, and Less</para>
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343 | </listitem>
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344 |
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345 | <listitem>
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346 | <para>Patch</para>
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347 | <para>Used for applying patches in several CLFS packages</para>
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348 | </listitem>
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349 |
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350 | <listitem>
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351 | <para>Perl</para>
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352 | <para>The Perl package contains the Practical Extraction and Report
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353 | Language. It is required by several CLFS packages.</para>
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354 | </listitem>
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355 |
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356 | <listitem>
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357 | <para>Pkg-config-lite</para>
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358 | <para>Several packages in CLFS, and many others outside of CLFS,
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359 | use <command>pkg-config</command> to locate dependencies.</para>
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360 | </listitem>
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361 |
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362 | <listitem>
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363 | <para>Procps-ng</para>
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364 | <para>Provides a number of small, useful utilities that give information
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365 | about the <filename class="directory">/proc</filename> filesystem.</para>
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366 | </listitem>
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367 |
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368 | <listitem>
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369 | <para>Psmisc</para>
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370 | <para>Provides more utilties that give information about the
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371 | <filename class="directory">/proc</filename> filesystem.</para>
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372 | </listitem>
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373 |
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374 | <listitem>
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375 | <para>Readline</para>
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376 | <para>The Readline library provides a set of functions for use by
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377 | applications that allow users to edit command lines as they are typed
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378 | in. This is essential for input in programs like <command>bash</command>
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379 | to work properly.</para>
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380 | </listitem>
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381 |
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382 | <listitem>
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383 | <para>Sed</para>
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384 | <para>This package contains a stream editor. It is used in the
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385 | installation procedures of most CLFS packages.</para>
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386 | </listitem>
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387 |
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388 | <listitem>
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389 | <para>Shadow</para>
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390 | <para>This package contains programs that assist in the administration
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391 | of users and groups, and passwords.</para>
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392 | </listitem>
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393 |
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394 | <listitem>
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395 | <para>Systemd</para>
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396 | <para>Systemd provides the init daemon for the system, as well as Udev,
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397 | which dynamically creates device nodes.</para>
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398 | </listitem>
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399 |
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400 | <listitem>
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401 | <para>Tar</para>
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402 | <para>Required to unpack the tar archives in which all CLFS packages
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403 | are distributed</para>
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404 | </listitem>
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405 |
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406 | <listitem>
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407 | <para>Tcl</para>
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408 | <para>Needed for the test suites of several packages</para>
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409 | </listitem>
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410 |
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411 | <listitem>
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412 | <para>Texinfo</para>
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413 | <para>This package contains programs for viewing, installing and
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414 | converting info pages. It is used in the installation procedures
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415 | of many CLFS packages.</para>
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416 | </listitem>
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417 |
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418 | <listitem>
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419 | <para>Util-linux</para>
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420 | <para>The Util-linux package contains miscellaneous utility programs.
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421 | Among them are utilities for handling file systems, consoles,
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422 | partitions, and messages. It also includes libraries that are required
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423 | by E2fsprogs.</para>
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424 | </listitem>
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425 |
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426 | <listitem>
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427 | <para>Vim</para>
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428 | <para>The Vim package contains a text editor. Users may substitute Nano,
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429 | Joe, Emacs, or whatever other editor they prefer.</para>
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430 | </listitem>
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431 |
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432 | <listitem>
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433 | <para>XML::Parser</para>
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434 | <para>This Perl module is required by Intltool.</para>
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435 | </listitem>
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436 |
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437 | <listitem>
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438 | <para>XZ Utils</para>
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439 | <para>Useful for compressing files to reduce size. Also needed to
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440 | uncompress tarballs for many CLFS packages</para>
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441 | </listitem>
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442 |
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443 | <listitem>
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444 | <para>Zlib</para>
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445 | <para>The Zlib package contains compression and decompression routines
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446 | used by some programs.</para>
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447 | </listitem>
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448 |
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449 | </itemizedlist>
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450 |
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451 | </appendix>
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