[32c8c96] | 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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[7c0b175] | 7 | <!ENTITY js68-download-http "&mozilla-http;/firefox/releases/&JS68-version;esr/source/firefox-&JS68-version;esr.source.tar.xz">
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[7af46e61] | 8 | <!ENTITY js68-download-ftp " ">
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[cfc1f98] | 9 | <!ENTITY js68-md5sum "80ae7816399f20cc61c9b15495b2341d">
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| 10 | <!ENTITY js68-size "299 MB">
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[21b1ead] | 11 | <!ENTITY js68-buildsize "2.8 GB (30 MB installed after removing 31MB static lib)">
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[cfc1f98] | 12 | <!ENTITY js68-time "2.1 SBU (with parallelism = 4)">
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[32c8c96] | 13 | ]>
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| 14 |
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[3bf88d0] | 15 | <sect1 id="js68" xreflabel="js68-&JS68-version;">
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[32c8c96] | 16 | <?dbhtml filename="js68.html"?>
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| 17 |
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| 18 |
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[3bf88d0] | 19 | <title>JS-&JS68-version;</title>
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[32c8c96] | 20 |
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| 21 | <indexterm zone="js68">
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| 22 | <primary sortas="a-js68">js68</primary>
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| 23 | </indexterm>
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| 24 |
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| 25 | <sect2 role="package">
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| 26 | <title>Introduction to JS</title>
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| 27 |
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| 28 | <para>
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| 29 | <application>JS</application> is Mozilla's JavaScript engine
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[7af46e61] | 30 | written in C. JS68 is taken from Firefox.
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[32c8c96] | 31 | </para>
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| 32 |
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[87351a9] | 33 | &lfs10_checked;
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| 34 |
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[32c8c96] | 35 | <bridgehead renderas="sect3">Package Information</bridgehead>
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| 36 | <itemizedlist spacing="compact">
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| 37 | <listitem>
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| 38 | <para>
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| 39 | Download (HTTP): <ulink url="&js68-download-http;"/>
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| 40 | </para>
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| 41 | </listitem>
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| 42 | <listitem>
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| 43 | <para>
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| 44 | Download (FTP): <ulink url="&js68-download-ftp;"/>
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| 45 | </para>
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| 46 | </listitem>
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| 47 | <listitem>
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| 48 | <para>
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[3bf88d0] | 49 | Download MD5 sum: &js68-md5sum;
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[32c8c96] | 50 | </para>
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| 51 | </listitem>
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| 52 | <listitem>
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| 53 | <para>
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[3bf88d0] | 54 | Download size: &js68-size;
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[32c8c96] | 55 | </para>
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| 56 | </listitem>
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| 57 | <listitem>
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| 58 | <para>
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| 59 | Estimated disk space required: &js68-buildsize;
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| 60 | </para>
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| 61 | </listitem>
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| 62 | <listitem>
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| 63 | <para>
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| 64 | Estimated build time: &js68-time;
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| 65 | </para>
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| 66 | </listitem>
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| 67 | </itemizedlist>
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| 68 |
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| 69 | <bridgehead renderas="sect3">JS68 Dependencies</bridgehead>
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| 70 |
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| 71 | <bridgehead renderas="sect4">Required</bridgehead>
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| 72 | <para role="required">
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| 73 | <xref linkend="autoconf213"/>,
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| 74 | <xref linkend="icu"/>,
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[b2b75375] | 75 | <xref linkend="python2"/>, and
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| 76 | <xref linkend="which"/>
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[32c8c96] | 77 | </para>
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| 78 |
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| 79 | <bridgehead renderas="sect4">Optional</bridgehead>
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| 80 | <para role="optional">
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[6c6baa91] | 81 | <xref linkend="llvm"/> (with <application>Clang</application>),
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| 82 | <xref linkend="nasm"/>, and
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| 83 | <xref linkend="doxygen"/> (for documentation)
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[32c8c96] | 84 | </para>
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| 85 |
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| 86 | <para condition="html" role="usernotes">
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| 87 | User Notes: <ulink url="&blfs-wiki;/js68"/>
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| 88 | </para>
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| 89 | </sect2>
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| 90 |
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| 91 | <sect2 role="installation">
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| 92 | <title>Installation of JS</title>
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| 93 |
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| 94 | <caution>
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[d56e7df] | 95 | <para>
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| 96 | If you are upgrading JS68 from a previously installed old version,
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| 97 | save all work and exit your GNOME Session if you have one running.
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| 98 | Replacing the JS68 binary will cause the GNOME Shell to crash and
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| 99 | return you to your display manager or TTY. After installing the new
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[b0eb7c40] | 100 | version, if GNOME Shell still doesn't work, reinstall
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| 101 | <xref linkend="gjs"/>.
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[d56e7df] | 102 | </para>
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[32c8c96] | 103 | </caution>
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| 104 |
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[7af46e61] | 105 | <note>
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| 106 | <para>
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| 107 | Unlike most other packages in BLFS, the instructions below require you
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[65106bd] | 108 | to untar <filename>firefox-&JS68-version;esr.tar.xz</filename> and
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| 109 | change into the <filename>firefox-&JS68-version;</filename> folder.
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[7af46e61] | 110 | </para>
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[4eef56d] | 111 |
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| 112 | <para>
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| 113 | Extracting the tarball
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| 114 | will reset the permissions of the current directory to 0755 if you
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| 115 | have permission to do that. If you do this in a directory where
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| 116 | the sticky bit is set, such
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| 117 | as <filename class="directory">/tmp</filename> it will end with error
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| 118 | messages:
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| 119 | </para>
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| 120 |
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| 121 | <literallayout>tar: .: Cannot utime: Operation not permitted
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| 122 | tar: .: Cannot change mode to rwxr-xr-t: Operation not permitted
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| 123 | tar: Exiting with failure status due to previous errors
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| 124 | </literallayout>
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| 125 |
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| 126 | <para>
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| 127 | This does finish with non-zero status, but it does
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| 128 | <emphasis>NOT</emphasis> mean there is a real problem.
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| 129 | Do not untar as the <systemitem class="username">root</systemitem> user
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| 130 | in a directory where the sticky bit is set - that will unset it.
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| 131 | </para>
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| 132 |
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[7af46e61] | 133 | </note>
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| 134 |
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[32c8c96] | 135 | <para>
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| 136 | Install <application>JS</application> by running the following
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| 137 | commands:
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| 138 | </para>
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| 139 |
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[5b0a978e] | 140 | <note>
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| 141 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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| 142 | href="../../xincludes/mozshm.xml"/>
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| 143 |
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| 144 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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| 145 | href="../../xincludes/mozconfigure.xml"/>
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| 146 | </note>
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| 147 |
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[32c8c96] | 148 |
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| 149 | <screen><userinput>sed '21,+4d' -i js/moz.configure &&
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| 150 |
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[7af46e61] | 151 | mkdir obj &&
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| 152 | cd obj &&
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[32c8c96] | 153 |
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| 154 | CC=gcc CXX=g++ LLVM_OBJDUMP=/bin/false \
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| 155 | ../js/src/configure --prefix=/usr \
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| 156 | --with-intl-api \
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| 157 | --with-system-zlib \
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| 158 | --with-system-icu \
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| 159 | --disable-jemalloc \
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| 160 | --disable-debug-symbols \
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| 161 | --enable-readline \
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[5ab87cfa] | 162 | --enable-unaligned-private-values &&
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[32c8c96] | 163 | make</userinput></screen>
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| 164 |
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| 165 | <para>
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| 166 | This package does not come with a working test suite.
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| 167 | </para>
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| 168 |
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| 169 | <para>
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| 170 | Now, as the <systemitem class="username">root</systemitem> user:
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| 171 | </para>
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| 172 |
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[5ab87cfa] | 173 | <screen role="root"><userinput>make install &&
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| 174 | rm -v /usr/lib/libjs_static.ajs</userinput></screen>
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[32c8c96] | 175 |
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| 176 | </sect2>
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| 177 |
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| 178 | <sect2 role="commands">
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| 179 | <title>Command Explanations</title>
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| 180 |
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| 181 | <para>
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[c8e3444] | 182 | <command>sed '21,+4d' js/moz.configure</command>: Firefox building
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| 183 | system searches for <command>rustc</command> and
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| 184 | <command>cargo</command>.
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| 185 | Since we are building the standalone JS engine instead of the entire
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| 186 | browser, they are not actually used.
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| 187 | Remove the reference to them so we can
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[32c8c96] | 188 | build JS68 without <xref role="nodep" linkend="rust"/> installed.
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| 189 | </para>
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| 190 |
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| 191 | <para>
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| 192 | <envar>CC=gcc CXX=g++</envar>: Upstream now prefers
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| 193 | <application>clang</application>, override it like other Mozilla
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| 194 | packages in BLFS book.
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| 195 | </para>
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| 196 |
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| 197 | <para>
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[6c6baa91] | 198 | <envar>LLVM_OBJDUMP=/bin/false</envar>: The firefox build system
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[c8e3444] | 199 | searches for <command>llvm-objdump</command>.
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| 200 | Since we are building the standalone JS engine instead of the entire
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| 201 | browser, they are not actually used.
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[32c8c96] | 202 | Override it so we can build JS68 without
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| 203 | <xref role="nodep" linkend="llvm"/> installed.
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| 204 | </para>
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| 205 |
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| 206 | <para>
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| 207 | <parameter>--with-*</parameter>: These parameters allow the build system
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[21b1ead] | 208 | to use system versions of the above libraries. These are required for
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[32c8c96] | 209 | stability.
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| 210 | </para>
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| 211 |
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| 212 | <para>
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| 213 | <parameter>--enable-readline</parameter>: This switch enables Readline
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| 214 | support in the JS shell.
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| 215 | </para>
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| 216 |
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| 217 | <para>
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| 218 | <parameter>--disable-jemalloc</parameter>: This switch disables the
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| 219 | internal memory allocator used in JS68. jemalloc causes a conflict with glibc.
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| 220 | </para>
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| 221 |
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| 222 | <para>
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| 223 | <parameter>--disable-debug-symbols</parameter>: Don't generate debug
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| 224 | symbols since they are very large and most users won't need it. Remove
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| 225 | it if you want to debug JS68.
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| 226 | </para>
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| 227 |
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| 228 | <para>
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| 229 | <parameter>--enable-unaligned-private-values</parameter>: This switch
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| 230 | allows the code using JS68 not to align all pointers in the same way
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| 231 | JS68 does. <xref linkend="gjs"/> requires JS68 to be built with this
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| 232 | switch.
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| 233 | </para>
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| 234 |
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[5ab87cfa] | 235 | <para>
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| 236 | <command>rm -v /usr/lib/libjs_static.ajs</command>: Remove a large
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| 237 | static library which is not used by any BLFS package.
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| 238 | </para>
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| 239 |
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[32c8c96] | 240 | </sect2>
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| 241 |
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| 242 | <sect2 role="content">
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| 243 | <title>Contents</title>
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| 244 |
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| 245 | <segmentedlist>
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| 246 | <segtitle>Installed Programs</segtitle>
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| 247 | <segtitle>Installed Libraries</segtitle>
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| 248 | <segtitle>Installed Directories</segtitle>
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| 249 |
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| 250 | <seglistitem>
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| 251 | <seg>
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| 252 | js68 and js68-config
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| 253 | </seg>
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| 254 | <seg>
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[21b1ead] | 255 | libmozjs-68.so
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[32c8c96] | 256 | </seg>
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| 257 | <seg>
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| 258 | /usr/include/mozjs-68
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| 259 | </seg>
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| 260 | </seglistitem>
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| 261 | </segmentedlist>
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| 262 |
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| 263 | <variablelist>
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| 264 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
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| 265 | <?dbfo list-presentation="list"?>
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| 266 | <?dbhtml list-presentation="table"?>
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| 267 |
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| 268 | <varlistentry id="js6-js68">
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| 269 | <term><command>js68</command></term>
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| 270 | <listitem>
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| 271 | <para>
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| 272 | provides a command line interface to the
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| 273 | <application>JavaScript</application> engine.
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| 274 | </para>
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| 275 | <indexterm zone="js68 js68">
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| 276 | <primary sortas="b-js68">js68</primary>
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| 277 | </indexterm>
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| 278 | </listitem>
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| 279 | </varlistentry>
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| 280 |
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| 281 | <varlistentry id="js68-config">
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| 282 | <term><command>js68-config</command></term>
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| 283 | <listitem>
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| 284 | <para>
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| 285 | is used to find the JS compiler and linker flags.
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| 286 | </para>
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| 287 | <indexterm zone="js68 js68-config">
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| 288 | <primary sortas="b-js68-config">js68-config</primary>
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| 289 | </indexterm>
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| 290 | </listitem>
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| 291 | </varlistentry>
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| 292 |
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| 293 | <varlistentry id="libmozjs-68">
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| 294 | <term><filename class="libraryfile">libmozjs-68.so</filename></term>
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| 295 | <listitem>
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| 296 | <para>
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| 297 | contains the Mozilla JavaScript API functions.
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| 298 | </para>
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| 299 | <indexterm zone="js68 libmozjs-68">
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| 300 | <primary sortas="c-libmozjs68">libmozjs-68.so</primary>
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| 301 | </indexterm>
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| 302 | </listitem>
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| 303 | </varlistentry>
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| 304 | </variablelist>
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| 305 | </sect2>
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| 306 | </sect1>
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