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 | <!ENTITY js68-download-http "&mozilla-http;/firefox/releases/&JS68-version;esr/source/firefox-&JS68-version;esr.source.tar.xz">
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8 | <!ENTITY js68-download-ftp " ">
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9 | <!ENTITY js68-md5sum "0d8361018d3de12c1e38f39fce6ee01b">
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10 | <!ENTITY js68-size "305 MB">
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11 | <!ENTITY js68-buildsize "2.8 GB (30 MB installed)"> <!-- Installed size is 62 MB -->
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12 | <!ENTITY js68-time "7.0 SBU">
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13 | ]>
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14 |
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15 | <sect1 id="js68" xreflabel="js68-&JS68-version;">
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16 | <?dbhtml filename="js68.html"?>
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17 |
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18 | <sect1info>
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19 | <othername>$LastChangedBy$</othername>
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20 | <date>$Date$</date>
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21 | </sect1info>
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22 |
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23 | <title>JS-&JS68-version;</title>
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24 |
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25 | <indexterm zone="js68">
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26 | <primary sortas="a-js68">js68</primary>
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27 | </indexterm>
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28 |
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29 | <sect2 role="package">
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30 | <title>Introduction to JS</title>
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31 |
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32 | <para>
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33 | <application>JS</application> is Mozilla's JavaScript engine
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34 | written in C. JS68 is taken from Firefox.
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35 | </para>
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36 |
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37 | <!-- JS68 is only used by gjs at the moment -->
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38 |
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39 | <!-- We'll need to remember to update js68 anytime there is a firefox
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40 | ESR update. -->
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41 |
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42 | <bridgehead renderas="sect3">Package Information</bridgehead>
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43 | <itemizedlist spacing="compact">
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44 | <listitem>
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45 | <para>
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46 | Download (HTTP): <ulink url="&js68-download-http;"/>
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47 | </para>
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48 | </listitem>
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49 | <listitem>
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50 | <para>
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51 | Download (FTP): <ulink url="&js68-download-ftp;"/>
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52 | </para>
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53 | </listitem>
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54 | <listitem>
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55 | <para>
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56 | Download MD5 sum: &js68-md5sum;
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57 | </para>
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58 | </listitem>
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59 | <listitem>
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60 | <para>
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61 | Download size: &js68-size;
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62 | </para>
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63 | </listitem>
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64 | <listitem>
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65 | <para>
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66 | Estimated disk space required: &js68-buildsize;
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67 | </para>
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68 | </listitem>
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69 | <listitem>
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70 | <para>
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71 | Estimated build time: &js68-time;
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72 | </para>
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73 | </listitem>
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74 | </itemizedlist>
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75 |
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76 | <!--
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77 | <bridgehead renderas="sect3">Additional Downloads</bridgehead>
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78 | <itemizedlist spacing="compact">
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79 | <listitem>
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80 | <para>
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81 | Required patch:
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82 | <ulink url="&patch-root;/js68-&JS68-version;-python_3-1.patch"/>
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83 | </para>
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84 | </listitem>
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85 | </itemizedlist>
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86 | -->
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87 |
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88 | <bridgehead renderas="sect3">JS68 Dependencies</bridgehead>
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89 |
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90 | <bridgehead renderas="sect4">Required</bridgehead>
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91 | <para role="required">
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92 | <xref linkend="autoconf213"/>,
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93 | <xref linkend="icu"/>,
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94 | <xref linkend="python2"/>,
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95 | <xref linkend="which"/>,
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96 | <!--<xref linkend="yasm"/>,--> and
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97 | <xref linkend="zip"/>
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98 | </para>
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99 |
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100 | <bridgehead renderas="sect4">Optional</bridgehead>
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101 | <para role="optional">
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102 | <xref linkend="llvm"/> (with <application>Clang</application>) and
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103 | <xref linkend="doxygen"/>
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104 | </para>
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105 |
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106 | <para condition="html" role="usernotes">
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107 | User Notes: <ulink url="&blfs-wiki;/js68"/>
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108 | </para>
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109 | </sect2>
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110 |
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111 | <sect2 role="installation">
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112 | <title>Installation of JS</title>
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113 |
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114 | <caution>
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115 | <para>
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116 | If you are upgrading JS68 from a previously installed old version,
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117 | save all work and exit your GNOME Session if you have one running.
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118 | Replacing the JS68 binary will cause the GNOME Shell to crash and
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119 | return you to your display manager or TTY. After installing the new
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120 | version, reinstall <xref linkend="gjs"/>. Polkit is unaffected.
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121 | </para>
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122 | </caution>
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123 |
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124 | <note>
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125 | <para>
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126 | Unlike most other packages in BLFS, the instructions below require you
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127 | to untar <filename>firefox-&JS68-version;esr.tar.xz</filename> and
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128 | change into the <filename>firefox-&JS68-version;</filename> folder.
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129 | </para>
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130 | </note>
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131 |
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132 | <!--
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133 | <para>
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134 | First, apply a patch so we can run the shipped build scripts with
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135 | Python 3, instead of the EOL'ed Python 2:
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136 | </para>
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137 |
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138 | <screen><userinput remap="pre">patch -Np1 -i ../js68-&JS68-version;-python_3-1.patch</userinput></screen>
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139 | -->
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140 | <para>
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141 | Install <application>JS</application> by running the following
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142 | commands:
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143 | </para>
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144 |
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145 | <!-- &shell-env;-->
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146 |
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147 | <note>
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148 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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149 | href="../../xincludes/mozshm.xml"/>
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150 |
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151 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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152 | href="../../xincludes/mozconfigure.xml"/>
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153 | </note>
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154 |
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155 |
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156 | <screen><userinput>sed '21,+4d' -i js/moz.configure &&
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157 |
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158 | mkdir obj &&
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159 | cd obj &&
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160 |
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161 | CC=gcc CXX=g++ LLVM_OBJDUMP=/bin/false \
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162 | ../js/src/configure --prefix=/usr \
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163 | --with-intl-api \
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164 | --with-system-zlib \
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165 | --with-system-icu \
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166 | --disable-jemalloc \
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167 | --disable-debug-symbols \
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168 | --enable-readline \
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169 | --enable-unaligned-private-values &&
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170 | make</userinput></screen>
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171 |
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172 | <para>
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173 | This package does not come with a working test suite.
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174 | </para>
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175 |
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176 | <para>
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177 | Now, as the <systemitem class="username">root</systemitem> user:
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178 | </para>
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179 |
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180 | <screen role="root"><userinput>make install &&
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181 | rm -v /usr/lib/libjs_static.ajs</userinput></screen>
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182 |
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183 | </sect2>
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184 |
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185 | <sect2 role="commands">
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186 | <title>Command Explanations</title>
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187 |
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188 | <para>
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189 | <command>sed '21,+4d' js/moz.configure</command>: The building system
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190 | searches for <command>rustc</command> and <command>cargo</command> but
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191 | doesn't actually use them. Remove the reference to them so we can
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192 | build JS68 without <xref role="nodep" linkend="rust"/> installed.
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193 | </para>
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194 |
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195 | <para>
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196 | <envar>CC=gcc CXX=g++</envar>: Upstream now prefers
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197 | <application>clang</application>, override it like other Mozilla
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198 | packages in BLFS book.
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199 | </para>
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200 |
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201 | <para>
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202 | <envar>LLVM_OBJDUMP=/bin/false</envar>: The building system searches
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203 | for <command>llvm-objdump</command> but doesn't actually use it.
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204 | Override it so we can build JS68 without
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205 | <xref role="nodep" linkend="llvm"/> installed.
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206 | </para>
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207 |
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208 | <para>
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209 | <parameter>--with-*</parameter>: These parameters allow the build system
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210 | to use system versions of the above libriares. These are required for
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211 | stability.
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212 | </para>
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213 |
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214 | <para>
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215 | <parameter>--enable-readline</parameter>: This switch enables Readline
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216 | support in the JS shell.
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217 | </para>
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218 |
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219 | <para>
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220 | <parameter>--disable-jemalloc</parameter>: This switch disables the
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221 | internal memory allocator used in JS68. jemalloc causes a conflict with glibc.
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222 | </para>
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223 |
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224 | <para>
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225 | <parameter>--disable-debug-symbols</parameter>: Don't generate debug
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226 | symbols since they are very large and most users won't need it. Remove
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227 | it if you want to debug JS68.
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228 | </para>
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229 |
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230 | <para>
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231 | <parameter>--enable-unaligned-private-values</parameter>: This switch
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232 | allows the code using JS68 not to align all pointers in the same way
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233 | JS68 does. <xref linkend="gjs"/> requires JS68 to be built with this
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234 | switch.
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235 | </para>
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236 |
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237 | <para>
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238 | <command>rm -v /usr/lib/libjs_static.ajs</command>: Remove a large
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239 | static library which is not used by any BLFS package.
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240 | </para>
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241 |
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242 | </sect2>
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243 |
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244 | <sect2 role="content">
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245 | <title>Contents</title>
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246 |
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247 | <segmentedlist>
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248 | <segtitle>Installed Programs</segtitle>
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249 | <segtitle>Installed Libraries</segtitle>
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250 | <segtitle>Installed Directories</segtitle>
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251 |
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252 | <seglistitem>
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253 | <seg>
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254 | js68 and js68-config
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255 | </seg>
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256 | <seg>
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257 | libmozjs-68.so and libjs_static.ajs <!-- The AJS file doesn't
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258 | conflict with the one from js52 like originally thought -->
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259 | </seg>
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260 | <seg>
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261 | /usr/include/mozjs-68
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262 | </seg>
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263 | </seglistitem>
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264 | </segmentedlist>
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265 |
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266 | <variablelist>
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267 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
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268 | <?dbfo list-presentation="list"?>
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269 | <?dbhtml list-presentation="table"?>
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270 |
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271 | <varlistentry id="js6-js68">
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272 | <term><command>js68</command></term>
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273 | <listitem>
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274 | <para>
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275 | provides a command line interface to the
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276 | <application>JavaScript</application> engine.
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277 | </para>
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278 | <indexterm zone="js68 js68">
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279 | <primary sortas="b-js68">js68</primary>
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280 | </indexterm>
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281 | </listitem>
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282 | </varlistentry>
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283 |
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284 | <varlistentry id="js68-config">
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285 | <term><command>js68-config</command></term>
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286 | <listitem>
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287 | <para>
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288 | is used to find the JS compiler and linker flags.
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289 | </para>
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290 | <indexterm zone="js68 js68-config">
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291 | <primary sortas="b-js68-config">js68-config</primary>
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292 | </indexterm>
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293 | </listitem>
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294 | </varlistentry>
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295 |
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296 | <varlistentry id="libmozjs-68">
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297 | <term><filename class="libraryfile">libmozjs-68.so</filename></term>
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298 | <listitem>
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299 | <para>
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300 | contains the Mozilla JavaScript API functions.
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301 | </para>
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302 | <indexterm zone="js68 libmozjs-68">
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303 | <primary sortas="c-libmozjs68">libmozjs-68.so</primary>
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304 | </indexterm>
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305 | </listitem>
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306 | </varlistentry>
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307 | </variablelist>
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308 | </sect2>
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309 | </sect1>
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