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 | <!-- for when firefox and js91 use same version
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8 | <!ENTITY ff91-version "&firefox-version;">
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9 | and when they are on different versions - keep this for when
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10 | we have moved to next firefox-esr (ff-91) and JS has not moved
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11 | <!ENTITY ff91-version "&JS91-version;"> -->
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12 |
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13 | <!-- <!ENTITY ff91-version "&firefox-version;">-->
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14 | <!ENTITY js91-download-http "&mozilla-http;/firefox/releases/&JS91-version;esr/source/firefox-&JS91-version;esr.source.tar.xz">
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15 | <!ENTITY js91-download-ftp " ">
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16 | <!ENTITY js91-md5sum "63f84a77e8266256428c77895ecfb481">
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17 | <!ENTITY js91-size "362 MB">
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18 | <!ENTITY js91-buildsize "3.0 GB (38 MB installed after removing 33MB static lib)">
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19 | <!ENTITY js91-time "2.1 SBU (with parallelism=4)">
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20 | ]>
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21 |
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22 | <sect1 id="js91" xreflabel="JS-&JS91-version;">
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23 | <?dbhtml filename="js91.html"?>
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24 |
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25 |
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26 | <title>JS-&JS91-version;</title>
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27 |
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28 | <indexterm zone="js91">
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29 | <primary sortas="a-js91">js91</primary>
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30 | </indexterm>
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31 |
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32 | <sect2 role="package">
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33 | <title>Introduction to JS</title>
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34 |
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35 | <para>
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36 | <application>JS</application> (also referred as
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37 | <application>SpiderMonkey</application>) is Mozilla's JavaScript and
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38 | WebAssembly Engine, written in C++ and Rust.
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39 | In BLFS, the source code of JS is taken from Firefox.
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40 | </para>
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41 |
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42 | <!-- To editors: make sure polkit work with mozjs before
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43 | tagging mozjs. -->
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44 | &lfs112_checked;
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45 |
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46 | <bridgehead renderas="sect3">Package Information</bridgehead>
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47 | <itemizedlist spacing="compact">
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48 | <listitem>
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49 | <para>
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50 | Download (HTTP): <ulink url="&js91-download-http;"/>
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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 (FTP): <ulink url="&js91-download-ftp;"/>
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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 MD5 sum: &js91-md5sum;
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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 | Download size: &js91-size;
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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 disk space required: &js91-buildsize;
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71 | </para>
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72 | </listitem>
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73 | <listitem>
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74 | <para>
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75 | Estimated build time: &js91-time;
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76 | </para>
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77 | </listitem>
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78 | </itemizedlist>
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79 | <!--
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80 | <bridgehead renderas="sect3">Additional Downloads</bridgehead>
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81 | <itemizedlist spacing="compact">
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82 | <listitem>
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83 | <para>
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84 | Required patch:
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85 | <ulink url="&patch-root;/js-&JS91-version;-python_3_10-1.patch"/>
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86 | </para>
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87 | </listitem>
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88 | </itemizedlist>
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89 | -->
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90 | <bridgehead renderas="sect3">JS91 Dependencies</bridgehead>
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91 |
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92 | <bridgehead renderas="sect4">Required</bridgehead>
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93 | <para role="required">
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94 | <xref linkend="icu"/>,
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95 | <xref linkend="rust"/>, and
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96 | <xref linkend="which"/>
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97 | </para>
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98 |
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99 | <bridgehead renderas="sect4">Recommended</bridgehead>
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100 | <para role="recommended">
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101 | <!-- If clang is installed, it will be used instead of gcc.
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102 | gcc does not work for 32-bit system w/o -msse2 -mfpmath=sse:
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103 | https://bugzilla.mozilla.org/show_bug.cgi?id=1729459 -->
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104 | <xref linkend="llvm"/> (with <application>Clang</application>,
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105 | required for 32-bit system without SSE2 capability)
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106 | </para>
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107 |
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108 | <!-- It seems nasm is only used for aarch64-win64. -->
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109 | <!--bridgehead renderas="sect4">Optional</bridgehead>
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110 | <para role="optional">
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111 | <xref linkend="nasm"/>
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112 | </para-->
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113 |
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114 | <para condition="html" role="usernotes">
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115 | User Notes: <ulink url="&blfs-wiki;/js91"/>
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116 | </para>
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117 | </sect2>
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118 |
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119 | <sect2 role="installation">
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120 | <title>Installation of JS</title>
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121 |
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122 | <note>
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123 | <para>
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124 | Unlike most other packages in BLFS, the instructions below require you
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125 | to untar <filename>firefox-&JS91-version;esr.tar.xz</filename> and
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126 | change into the <filename>firefox-&JS91-version;</filename> folder.
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127 | </para>
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128 |
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129 | <para>
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130 | Extracting the tarball
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131 | will reset the permissions of the current directory to 0755 if you
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132 | have permission to do that. If you do this in a directory where
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133 | the sticky bit is set, such
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134 | as <filename class="directory">/tmp</filename> it will end with error
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135 | messages:
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136 | </para>
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137 |
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138 | <literallayout>tar: .: Cannot utime: Operation not permitted
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139 | tar: .: Cannot change mode to rwxr-xr-t: Operation not permitted
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140 | tar: Exiting with failure status due to previous errors
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141 | </literallayout>
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142 |
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143 | <para>
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144 | This does finish with non-zero status, but it does
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145 | <emphasis>NOT</emphasis> mean there is a real problem.
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146 | Do not untar as the <systemitem class="username">root</systemitem> user
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147 | in a directory where the sticky bit is set - that will unset it.
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148 | </para>
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149 |
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150 | </note>
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151 | <!-- not needed when using clang. Upstream bug at
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152 | https://bugzilla.mozilla.org/show_bug.cgi?id=1729459
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153 |
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154 | <para>
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155 | If building on a 32 bit machine, the following sed works around an issue
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156 | with an incompatible <quote>double</quote> type in one header file:
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157 | </para>
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158 |
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159 | <screen><userinput>case "$(uname -m)" in
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160 | i?86) sed -e '/typedef[ ]*double/s/double/long double/' \
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161 | -i modules/fdlibm/src/math_private.h ;;
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162 | esac</userinput></screen>
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163 | -->
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164 | <para>
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165 | Install <application>JS</application> by running the following
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166 | commands:
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167 | </para>
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168 |
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169 | <note>
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170 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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171 | href="../../xincludes/mozshm.xml"/>
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172 |
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173 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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174 | href="../../xincludes/mozconfigure.xml"/>
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175 |
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176 | <para>
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177 | Compiling the C++ code respects $MAKEFLAGS and defaults to 'j1',
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178 | the rust code will use all processors.
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179 | </para>
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180 | </note>
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181 |
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182 | <para>
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183 | First remove an obsolete flag in python code, that has been removed
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184 | in python-3.11:
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185 | </para>
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186 |
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187 | <screen><userinput>grep -rl \"rU\" | xargs sed -i 's/"rU"/"r"/'</userinput></screen>
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188 |
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189 | <para>
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190 | Then run:
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191 | </para>
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192 |
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193 | <screen><userinput>mkdir obj &&
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194 | cd obj &&
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195 |
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196 | sh ../js/src/configure.in --prefix=/usr \
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197 | --with-intl-api \
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198 | --with-system-zlib \
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199 | --with-system-icu \
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200 | --disable-jemalloc \
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201 | --disable-debug-symbols \
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202 | --enable-readline &&
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203 | make</userinput></screen>
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204 |
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205 | <para>
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206 | To run the JS test suite, issue:
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207 | <command>make -C js/src check-jstests
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208 | JSTESTS_EXTRA_ARGS="--timeout 300 --wpt=disabled"</command>.
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209 | It's recommended to redirect the output into a log.
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210 | <!-- recheck when ICU gets upgraded -->
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211 | Because we are building with system ICU, more than one hundred tests
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212 | (out of a total of more than 40,000) are known to fail.
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213 | </para>
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214 | <para>
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215 | To run the JIT test suite, issue:
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216 | <command>make -C js/src check-jit-test
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217 | JITTEST_EXTRA_ARGS="--timeout 300"</command>.
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218 | </para>
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219 |
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220 | <caution>
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221 | <para>
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222 | An issue in the installation process causes any running program which
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223 | links to JS91 shared library (for example, GNOME Shell) to crash if
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224 | JS91 is upgraded or reinstalled. To work around this issue, remove
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225 | the old version of the JS91 shared library before installation:
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226 | </para>
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227 |
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228 | <screen role="root"><userinput>rm -fv /usr/lib/libmozjs-91.so</userinput></screen>
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229 | </caution>
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230 |
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231 | <para>
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232 | Now, as the <systemitem class="username">root</systemitem> user:
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233 | </para>
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234 |
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235 | <screen role="root"><userinput>make install &&
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236 | rm -v /usr/lib/libjs_static.ajs &&
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237 | sed -i '/@NSPR_CFLAGS@/d' /usr/bin/js91-config</userinput></screen>
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238 |
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239 | </sect2>
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240 |
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241 | <!-- Several gjs-1.65.90 tests fail with js91. Not sure why.
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242 | OTOH an "otherwise" GNOME-3.36 environment works fine. -->
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243 |
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244 | <sect2 role="commands">
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245 | <title>Command Explanations</title>
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246 |
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247 | <para>
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248 | <command>sh ../js/src/configure.in</command>:
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249 | <filename>configure.in</filename> is actually a shell script, but
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250 | the executable bit is not set in its permission mode so it's needed
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251 | to explicitly run it with <command>sh</command>.
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252 | </para>
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253 |
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254 | <para>
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255 | <parameter>--with-intl-api</parameter>: This enables the
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256 | internationalization functions required by
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257 | <application>Gjs</application>.
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258 | </para>
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259 |
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260 | <para>
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261 | <parameter>--with-system-*</parameter>: These parameters allow the build system
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262 | to use system versions of the above libraries. These are required for
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263 | stability.
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264 | </para>
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265 |
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266 | <para>
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267 | <parameter>--enable-readline</parameter>: This switch enables Readline
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268 | support in the JS shell.
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269 | </para>
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270 |
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271 | <para>
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272 | <parameter>--disable-jemalloc</parameter>: This switch disables the
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273 | internal memory allocator used in JS91. jemalloc is only intended for
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274 | the Firefox browser environment. For other applications using JS91,
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275 | if JS91 uses jemalloc, the application may crash as items allocated
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276 | in jemalloc allocator are freed on system (glibc) allocator.
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277 | </para>
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278 |
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279 | <para>
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280 | <parameter>--disable-debug-symbols</parameter>: Don't generate debug
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281 | symbols since they are very large and most users won't need it. Remove
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282 | it if you want to debug JS91.
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283 | </para>
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284 |
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285 | <para>
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286 | <command>rm -v /usr/lib/libjs_static.ajs</command>: Remove a large
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287 | static library which is not used by any BLFS package.
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288 | </para>
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289 |
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290 | <para>
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291 | <command>sed -i '/@NSPR_CFLAGS@/d' /usr/bin/js91-config</command>:
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292 | Prevent <command>js91-config</command> from using buggy CFLAGS.
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293 | </para>
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294 |
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295 | <para>
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296 | <option><envar>CC=gcc CXX=g++</envar></option>: BLFS used to
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297 | prefer to use gcc and g++ instead of upstream's defaults of the
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298 | <application>clang</application> programs. With the release of
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299 | gcc-12 the build takes longer with gcc and g++, primarily because
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300 | of extra warnings, and is bigger. Pass these environment variables
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301 | to the configure script if you wish to continue to use gcc, g++
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302 | (by exporting them and unset them after the installation, or simply
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303 | prepending them before the
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304 | <command>sh ../js/src/configure.in</command> command). If you are
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305 | building on a 32-bit system, also see below.
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306 | </para>
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307 |
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308 | <para>
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309 | <option><envar>CXXFLAGS="-msse2 -mfpmath=sse"</envar></option>:
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310 | Use SSE2 instead of 387 for double-precision floating-point
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311 | operations. It's needed by GCC to satisfy the expectations of
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312 | upstream (Mozilla) developers with floating-point arithmetic.
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313 | Use it if you are building this package on a 32-bit system with
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314 | GCC (if Clang is not installed or GCC is explicitly specified).
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315 | Note that this will cause JS to crash on a processor without SSE2
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316 | capability. If you are running the system on such an old processor,
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317 | Clang is strictly needed. This setting is not needed on 64-bit
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318 | systems because all 64-bit x86 processors support SSE2 and the 64-bit
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319 | compilers (both Clang and GCC) use SSE2 by default.
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320 | </para>
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321 | </sect2>
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322 |
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323 | <sect2 role="content">
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324 | <title>Contents</title>
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325 |
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326 | <segmentedlist>
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327 | <segtitle>Installed Programs</segtitle>
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328 | <segtitle>Installed Libraries</segtitle>
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329 | <segtitle>Installed Directories</segtitle>
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330 |
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331 | <seglistitem>
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332 | <seg>
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333 | js91 and js91-config
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334 | </seg>
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335 | <seg>
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336 | libmozjs-91.so
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337 | </seg>
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338 | <seg>
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339 | /usr/include/mozjs-91
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340 | </seg>
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341 | </seglistitem>
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342 | </segmentedlist>
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343 |
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344 | <variablelist>
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345 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
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346 | <?dbfo list-presentation="list"?>
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347 | <?dbhtml list-presentation="table"?>
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348 |
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349 | <varlistentry id="js91-js91">
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350 | <term><command>js91</command></term>
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351 | <listitem>
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352 | <para>
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353 | provides a command line interface to the
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354 | <application>JavaScript</application> engine
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355 | </para>
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356 | <indexterm zone="js91 js91">
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357 | <primary sortas="b-js91">js91</primary>
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358 | </indexterm>
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359 | </listitem>
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360 | </varlistentry>
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361 |
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362 | <varlistentry id="js91-config">
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363 | <term><command>js91-config</command></term>
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364 | <listitem>
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365 | <para>
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366 | is used to find the JS compiler and linker flags
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367 | </para>
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368 | <indexterm zone="js91 js91-config">
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369 | <primary sortas="b-js91-config">js91-config</primary>
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370 | </indexterm>
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371 | </listitem>
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372 | </varlistentry>
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373 |
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374 | <varlistentry id="libmozjs-91">
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375 | <term><filename class="libraryfile">libmozjs-91.so</filename></term>
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376 | <listitem>
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377 | <para>
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378 | contains the Mozilla JavaScript API functions
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379 | </para>
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380 | <indexterm zone="js91 libmozjs-91">
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381 | <primary sortas="c-libmozjs91">libmozjs-91.so</primary>
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382 | </indexterm>
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383 | </listitem>
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384 | </varlistentry>
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385 | </variablelist>
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386 | </sect2>
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387 |
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388 | </sect1>
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