| 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 |  | 
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| 8 | <sect1 id="ch-system-glibc" role="wrap"> | 
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| 9 | <?dbhtml filename="glibc.html"?> | 
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| 10 |  | 
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| 11 | <title>Glibc-&glibc-version;</title> | 
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| 12 |  | 
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| 13 | <indexterm zone="ch-system-glibc"> | 
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| 14 | <primary sortas="a-Glibc">Glibc</primary> | 
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| 15 | </indexterm> | 
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| 16 |  | 
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| 17 | <sect2 role="package"> | 
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| 18 | <title/> | 
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| 19 |  | 
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| 20 | <para>The Glibc package contains the main C library. This library provides | 
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| 21 | the basic routines for allocating memory, searching directories, opening and | 
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| 22 | closing files, reading and writing files, string handling, pattern matching, | 
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| 23 | arithmetic, and so on.</para> | 
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| 24 |  | 
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| 25 | </sect2> | 
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| 26 |  | 
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| 27 | <sect2 role="installation"> | 
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| 28 | <title>Installation of Glibc</title> | 
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| 29 |  | 
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| 30 | <note os="z"> | 
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| 31 | <para>Some packages outside of CLFS suggest installing GNU libiconv in | 
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| 32 | order to translate data from one encoding to another. The project's | 
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| 33 | home page (<ulink url="http://www.gnu.org/software/libiconv/"/>) says | 
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| 34 | <quote>This library provides an <function>iconv()</function> | 
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| 35 | implementation, for use on systems which don't have one, or whose | 
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| 36 | implementation cannot convert from/to Unicode.</quote> Glibc provides | 
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| 37 | an <function>iconv()</function> implementation and can convert from/to | 
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| 38 | Unicode, therefore libiconv is not required on a CLFS system.</para> | 
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| 39 | </note> | 
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| 40 |  | 
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| 41 | <para os="l1">At the end of the installation, the build system will run | 
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| 42 | a sanity test to make sure everything installed properly. This script | 
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| 43 | performs its tests by attempting to compile test programs against certain | 
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| 44 | libraries. However it does not specify the path to | 
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| 45 | <filename class="libraryfile">ld.so</filename>, and our toolchain | 
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| 46 | is still configured to use the one in | 
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| 47 | <filename class="directory">/tools</filename>. The following set of | 
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| 48 | commands will force the script to use the complete path of the new | 
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| 49 | <filename class="libraryfile">ld.so</filename> that was just installed:</para> | 
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| 50 |  | 
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| 51 | <screen os="l2"><userinput>LINKER=$(readelf -l /tools/bin/bash | sed -n 's@.*interpret.*/tools\(.*\)]$@\1@p') | 
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| 52 | sed -i "s|libs -o|libs -L/usr/lib -Wl,-dynamic-linker=${LINKER} -o|" \ | 
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| 53 | scripts/test-installation.pl | 
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| 54 | unset LINKER</userinput></screen> | 
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| 55 |  | 
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| 56 | <para os="b">The Glibc build system is self-contained and will install | 
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| 57 | perfectly, even though the compiler specs file and linker are still | 
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| 58 | pointing at <filename class="directory">/tools</filename>. The specs | 
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| 59 | and linker cannot be adjusted before the Glibc install because the | 
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| 60 | Glibc Autoconf tests would give false results and defeat the goal | 
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| 61 | of achieving a clean build.</para> | 
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| 62 |  | 
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| 63 | <para os="e">The Glibc documentation recommends building Glibc outside of     the source directory in a dedicated build directory:</para> | 
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| 64 |  | 
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| 65 | <screen os="f"><userinput>mkdir -v ../glibc-build | 
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| 66 | cd ../glibc-build</userinput></screen> | 
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| 67 |  | 
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| 68 | <para os="g">Prepare Glibc for compilation:</para> | 
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| 69 |  | 
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| 70 | <screen os="h"><userinput>../glibc-&glibc-version;/configure \ | 
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| 71 | --prefix=/usr \ | 
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| 72 | --disable-profile \ | 
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| 73 | --enable-kernel=&glibc-kernel-version; \ | 
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| 74 | --libexecdir=/usr/lib/glibc \ | 
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| 75 | --enable-obsolete-rpc</userinput></screen> | 
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| 76 |  | 
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| 77 | <variablelist os="i"> | 
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| 78 | <title>The meaning of the new configure option:</title> | 
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| 79 |  | 
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| 80 | <varlistentry> | 
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| 81 | <term><parameter>--libexecdir=/usr/lib/glibc</parameter></term> | 
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| 82 | <listitem> | 
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| 83 | <para>This changes the location for hard links to the | 
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| 84 | <command>getconf</command> utility from their default of <filename | 
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| 85 | class="directory">/usr/libexec</filename> to <filename | 
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| 86 | class="directory">/usr/lib/glibc</filename>.</para> | 
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| 87 | </listitem> | 
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| 88 | </varlistentry> | 
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| 89 | </variablelist> | 
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| 90 |  | 
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| 91 | <para os="j">Compile the package:</para> | 
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| 92 |  | 
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| 93 | <screen os="k"><userinput>make</userinput></screen> | 
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| 94 |  | 
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| 95 | <important os="l"> | 
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| 96 | <para>Due to Glibc's critical role in a properly functioning system, | 
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| 97 | the CLFS developers strongly recommend running the testsuite.</para> | 
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| 98 | </important> | 
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| 99 |  | 
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| 100 | <para os="m">Use the following commands to run the test suite and output | 
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| 101 | any test failures:</para> | 
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| 102 |  | 
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| 103 | <!-- items n,o,p no longer the master, use x86_64 which has no failures --> | 
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| 104 |  | 
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| 105 | <screen os="n"><userinput remap="test">make check</userinput></screen> | 
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| 106 |  | 
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| 107 | <para os="o">The Glibc test suite is highly dependent on certain functions of | 
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| 108 | the host system, in particular the kernel. The <emphasis>posix/annexc</emphasis> and | 
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| 109 | <emphasis>conform/run-conformtest</emphasis> tests normally fail | 
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| 110 | and you should see <literal>Error 1 (ignored)</literal> in the output. Apart | 
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| 111 | from this, the Glibc test suite is always expected to pass. However, in certain | 
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| 112 | circumstances, some failures are unavoidable. If a test fails because of a missing | 
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| 113 | program (or missing symbolic link), or a segfault, you will see an error code | 
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| 114 | greater than 127 and the details will be in the log. More commonly, tests will | 
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| 115 | fail with <literal>Error 2</literal> - for these, the contents of the corresponding | 
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| 116 | <filename>.out</filename> file, e.g. <filename>posix/annexc.out</filename> may be | 
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| 117 | informative. Here is a list of the most common issues:</para> | 
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| 118 |  | 
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| 119 | <itemizedlist os="p"> | 
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| 120 | <listitem> | 
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| 121 | <para>The <emphasis>nptl/tst-clock2</emphasis>, | 
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| 122 | <emphasis>nptl/tst-attr3</emphasis>, | 
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| 123 | <emphasis>tst/tst-cputimer1</emphasis>, and | 
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| 124 | <emphasis>rt/tst-cpuclock2</emphasis> | 
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| 125 | tests have been known to fail.  The | 
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| 126 | reason is not completely understood, but indications are that minor | 
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| 127 | timing issues can trigger these failures.</para> | 
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| 128 | </listitem> | 
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| 129 | <listitem> | 
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| 130 | <para>The <emphasis>math</emphasis> tests sometimes fail. | 
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| 131 | Certain optimization settings are known to be a | 
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| 132 | factor here.</para> | 
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| 133 | </listitem> | 
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| 134 | <listitem> | 
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| 135 | <para>If you have mounted the CLFS partition with the | 
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| 136 | <parameter>noatime</parameter> option, the <emphasis>atime</emphasis> test | 
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| 137 | will fail. As mentioned in <xref linkend="ch-partitioning-mounting"/>, | 
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| 138 | do not use the <parameter>noatime</parameter> option while building | 
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| 139 | CLFS.</para> | 
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| 140 | </listitem> | 
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| 141 | <listitem> | 
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| 142 | <para>When running on older and slower hardware, some tests | 
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| 143 | can fail because of test timeouts being exceeded. | 
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| 144 | Modifying the make check command to set a TIMEOUTFACTOR is reported to | 
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| 145 | help eliminate these errors (e.g. <command>TIMEOUTFACTOR=16 | 
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| 146 | make -k check</command>).</para> | 
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| 147 | </listitem> | 
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| 148 | <listitem> | 
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| 149 | <para>posix/tst-getaddrinfo4 will always fail due to not having a network | 
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| 150 | connection when the test is run.</para> | 
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| 151 | </listitem> | 
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| 152 | </itemizedlist> | 
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| 153 |  | 
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| 154 | <para os="q">Though it is a harmless message, the install stage of Glibc will | 
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| 155 | complain about the absence of <filename>/etc/ld.so.conf</filename>. | 
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| 156 | Prevent this warning with:</para> | 
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| 157 |  | 
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| 158 | <screen os="r"><userinput>touch /etc/ld.so.conf</userinput></screen> | 
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| 159 |  | 
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| 160 | <para os="s">Install the package, and remove unneeded files from | 
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| 161 | <filename class="directory">/usr/include/rpcsvc</filename>:</para> | 
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| 162 |  | 
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| 163 | <screen os="t"><userinput>make install && | 
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| 164 | rm -v /usr/include/rpcsvc/*.x</userinput></screen> | 
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| 165 |  | 
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| 166 | <para os="u">Install the configuration file and runtime directory for | 
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| 167 | <command>nscd</command>:</para> | 
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| 168 |  | 
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| 169 | <screen os="v"><userinput>cp -v ../glibc-&glibc-version;/nscd/nscd.conf /etc/nscd.conf | 
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| 170 | mkdir -pv /var/cache/nscd</userinput></screen> | 
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| 171 |  | 
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| 172 | <para os="w">Install the systemd support files for <command>nscd</command>:</para> | 
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| 173 |  | 
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| 174 | <screen os="x"><userinput>install -v -Dm644 ../glibc-&glibc-version;/nscd/nscd.tmpfiles /usr/lib/tmpfiles.d/nscd.conf | 
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| 175 | install -v -Dm644 ../glibc-&glibc-version;/nscd/nscd.service /lib/systemd/system/nscd.service</userinput></screen> | 
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| 176 |  | 
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| 177 | </sect2> | 
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| 178 |  | 
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| 179 | <sect2 id="i18n-glibc" role="configuration"> | 
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| 180 | <title>Internationalization</title> | 
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| 181 |  | 
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| 182 | <para>The locales that can make the system respond in a different | 
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| 183 | language were not installed by the above command. Install them | 
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| 184 | with:</para> | 
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| 185 |  | 
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| 186 | <screen><userinput>make localedata/install-locales</userinput></screen> | 
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| 187 |  | 
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| 188 | <para>To save time, an alternative to running the previous command (which | 
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| 189 | generates and installs every locale listed in the | 
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| 190 | <filename>glibc-&glibc-version;/localedata/SUPPORTED</filename> file) is | 
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| 191 | to install only those locales that are wanted and needed. This can be | 
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| 192 | achieved by using the <command>localedef</command> command. Information on | 
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| 193 | this command is located in the <filename>INSTALL</filename> file in the | 
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| 194 | Glibc source. However, there are a number of locales that are essential in | 
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| 195 | order for the tests of future packages to pass, in particular, the | 
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| 196 | <emphasis>libstdc++</emphasis> tests from GCC. The following instructions, | 
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| 197 | instead of the <parameter>install-locales</parameter> target used above, | 
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| 198 | will install the minimum set of locales necessary for the tests to run | 
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| 199 | successfully:</para> | 
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| 200 |  | 
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| 201 | <screen role="nodump"><userinput>mkdir -pv /usr/lib/locale | 
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| 202 | localedef -i cs_CZ -f UTF-8 cs_CZ.UTF-8 | 
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| 203 | localedef -i de_DE -f ISO-8859-1 de_DE | 
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| 204 | localedef -i de_DE@euro -f ISO-8859-15 de_DE@euro | 
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| 205 | localedef -i en_HK -f ISO-8859-1 en_HK | 
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| 206 | localedef -i en_PH -f ISO-8859-1 en_PH | 
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| 207 | localedef -i en_US -f ISO-8859-1 en_US | 
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| 208 | localedef -i es_MX -f ISO-8859-1 es_MX | 
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| 209 | localedef -i fa_IR -f UTF-8 fa_IR | 
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| 210 | localedef -i fr_FR -f ISO-8859-1 fr_FR | 
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| 211 | localedef -i fr_FR@euro -f ISO-8859-15 fr_FR@euro | 
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| 212 | localedef -i it_IT -f ISO-8859-1 it_IT | 
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| 213 | localedef -i ja_JP -f EUC-JP ja_JP</userinput></screen> | 
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| 214 |  | 
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| 215 | <para>Some locales installed by the <command>make | 
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| 216 | localedata/install-locales</command> command above are not properly | 
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| 217 | supported by some applications that are in CLFS and CBLFS. Because | 
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| 218 | of the various problems that arise due to application programmers making | 
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| 219 | assumptions that break in such locales, CLFS should not be used in locales | 
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| 220 | that utilize multibyte character sets (including UTF-8) or right-to-left | 
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| 221 | writing order.  Numerous unofficial and unstable patches are required to | 
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| 222 | fix these problems, and it has been decided by the CLFS developers not to | 
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| 223 | support such complex locales at this time. This applies to the ja_JP and | 
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| 224 | fa_IR locales as well—they have been installed only for GCC and | 
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| 225 | Gettext tests to pass, and the <command>watch</command> program (part of | 
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| 226 | the Procps-ng package) does not work properly in them. Various attempts to | 
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| 227 | circumvent these restrictions are documented in internationalization-related | 
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| 228 | hints.</para> | 
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| 229 |  | 
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| 230 | </sect2> | 
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| 231 |  | 
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| 232 | <sect2 id="conf-glibc" role="configuration"> | 
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| 233 | <title>Configuring Glibc</title> | 
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| 234 |  | 
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| 235 | <indexterm zone="conf-glibc"> | 
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| 236 | <primary sortas="e-/etc/nsswitch.conf">/etc/nsswitch.conf</primary> | 
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| 237 | </indexterm> | 
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| 238 |  | 
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| 239 | <indexterm zone="conf-glibc"> | 
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| 240 | <primary sortas="e-/etc/localtime">/etc/localtime</primary> | 
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| 241 | </indexterm> | 
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| 242 |  | 
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| 243 | <para>The <filename>/etc/nsswitch.conf</filename> file needs to be created | 
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| 244 | because, although Glibc provides defaults when this file is missing or | 
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| 245 | corrupt, the Glibc defaults do not work well in a networked environment. | 
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| 246 | The time zone also needs to be configured.</para> | 
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| 247 |  | 
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| 248 | <para>Create a new file <filename>/etc/nsswitch.conf</filename> by running | 
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| 249 | the following:</para> | 
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| 250 |  | 
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| 251 | <screen><userinput>cat > /etc/nsswitch.conf << "EOF" | 
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| 252 | <literal># Begin /etc/nsswitch.conf | 
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| 253 |  | 
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| 254 | passwd: files | 
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| 255 | group: files | 
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| 256 | shadow: files | 
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| 257 |  | 
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| 258 | hosts: files dns | 
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| 259 | networks: files | 
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| 260 |  | 
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| 261 | protocols: files | 
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| 262 | services: files | 
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| 263 | ethers: files | 
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| 264 | rpc: files | 
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| 265 |  | 
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| 266 | # End /etc/nsswitch.conf</literal> | 
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| 267 | EOF</userinput></screen> | 
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| 268 |  | 
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| 269 | <para>Install timezone data:</para> | 
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| 270 | <screen><userinput>tar -xf ../tzdata&tzdata-version;.tar.gz | 
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| 271 |  | 
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| 272 | ZONEINFO=/usr/share/zoneinfo | 
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| 273 | mkdir -pv $ZONEINFO/{posix,right} | 
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| 274 |  | 
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| 275 | for tz in etcetera southamerica northamerica europe africa antarctica \ | 
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| 276 | asia australasia backward pacificnew systemv; do | 
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| 277 | zic -L /dev/null   -d $ZONEINFO       -y "sh yearistype.sh" ${tz} | 
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| 278 | zic -L /dev/null   -d $ZONEINFO/posix -y "sh yearistype.sh" ${tz} | 
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| 279 | zic -L leapseconds -d $ZONEINFO/right -y "sh yearistype.sh" ${tz} | 
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| 280 | done | 
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| 281 |  | 
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| 282 | cp -v zone.tab zone1970.tab iso3166.tab $ZONEINFO | 
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| 283 | zic -d $ZONEINFO -p America/New_York | 
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| 284 | unset ZONEINFO</userinput></screen> | 
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| 285 |  | 
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| 286 | <variablelist> | 
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| 287 | <title>The meaning of the zic commands:</title> | 
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| 288 |  | 
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| 289 | <varlistentry> | 
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| 290 | <term><parameter>zic -L /dev/null ...</parameter></term> | 
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| 291 | <listitem> | 
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| 292 | <para>This creates posix timezones, without any leap seconds.  It is | 
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| 293 | conventional to put these in both | 
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| 294 | <filename class="directory">zoneinfo</filename> and | 
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| 295 | <filename class="directory">zoneinfo/posix</filename>. It is | 
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| 296 | necessary to put the POSIX timezones in | 
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| 297 | <filename class="directory">zoneinfo</filename>, otherwise various | 
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| 298 | test-suites will report errors. On an embedded system, where space is | 
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| 299 | tight and you do not intend to ever update the timezones, you could save | 
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| 300 | 1.9MB by not using the <filename class="directory">posix</filename> | 
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| 301 | directory, but some applications or test-suites might give less good | 
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| 302 | results</para> | 
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| 303 | </listitem> | 
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| 304 | </varlistentry> | 
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| 305 | <varlistentry> | 
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| 306 | <term><parameter>zic -L leapseconds ...</parameter></term> | 
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| 307 | <listitem> | 
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| 308 | <para>This creates right timezones, including leap seconds. On an | 
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| 309 | embedded system, where space is tight and you do not intend to | 
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| 310 | ever update the timezones, or care about the correct time, you could | 
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| 311 | save 1.9MB by omitting the <filename class="directory">right</filename> | 
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| 312 | directory.</para> | 
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| 313 | </listitem> | 
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| 314 | </varlistentry> | 
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| 315 | <varlistentry> | 
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| 316 | <term><parameter>zic ... -p ...</parameter></term> | 
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| 317 | <listitem> | 
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| 318 | <para>This creates the <filename>posixrules</filename> file. We use | 
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| 319 | New York because POSIX requires the daylight savings time rules | 
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| 320 | to be in accordance with US rules.</para> | 
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| 321 | </listitem> | 
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| 322 | </varlistentry> | 
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| 323 | </variablelist> | 
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| 324 |  | 
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| 325 | <para>To determine the local time zone, run the following script:</para> | 
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| 326 |  | 
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| 327 | <screen role="nodump"><userinput>tzselect</userinput></screen> | 
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| 328 |  | 
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| 329 | <para>After answering a few questions about the location, the script will | 
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| 330 | output the name of the time zone (e.g., <emphasis>EST5EDT</emphasis> or | 
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| 331 | <emphasis>Canada/Eastern</emphasis>). Then create the | 
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| 332 | <filename>/etc/localtime</filename> file by running:</para> | 
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| 333 |  | 
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| 334 | <screen><userinput>cp -v /usr/share/zoneinfo/<replaceable>[xxx]</replaceable> \ | 
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| 335 | /etc/localtime</userinput></screen> | 
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| 336 |  | 
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| 337 | <para>Replace <replaceable>[xxx]</replaceable> with the name of the time zone | 
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| 338 | that <command>tzselect</command> provided (e.g., Canada/Eastern).</para> | 
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| 339 |  | 
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| 340 | </sect2> | 
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| 341 |  | 
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| 342 | <sect2 id="conf-ld" role="configuration"> | 
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| 343 | <title>Configuring The Dynamic Loader</title> | 
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| 344 |  | 
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| 345 | <indexterm zone="conf-ld"> | 
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| 346 | <primary sortas="e-/etc/ld.so.conf">/etc/ld.so.conf</primary> | 
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| 347 | </indexterm> | 
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| 348 |  | 
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| 349 | <para os="ld-a">By default, the dynamic loader (<filename | 
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| 350 | class="libraryfile">/lib/ld-linux.so.2</filename>) searches through | 
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| 351 | <filename class="directory">/lib</filename> and <filename | 
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| 352 | class="directory">/usr/lib</filename> for dynamic libraries that are | 
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| 353 | needed by programs as they are run. However, if there are libraries in | 
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| 354 | directories other than <filename class="directory">/lib</filename> and | 
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| 355 | <filename class="directory">/usr/lib</filename>, these need to be | 
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| 356 | added to the <filename>/etc/ld.so.conf</filename> file in order | 
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| 357 | for the dynamic loader to find them. Two directories that are commonly | 
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| 358 | known to contain additional libraries are <filename | 
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| 359 | class="directory">/usr/local/lib</filename> and <filename | 
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| 360 | class="directory">/opt/lib</filename>, so add those directories to the | 
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| 361 | dynamic loader's search path.</para> | 
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| 362 |  | 
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| 363 | <para os="ld-b">Create a new file <filename>/etc/ld.so.conf</filename> by running the | 
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| 364 | following:</para> | 
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| 365 |  | 
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| 366 | <screen os="ld-c"><userinput>cat > /etc/ld.so.conf << "EOF" | 
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| 367 | <literal># Begin /etc/ld.so.conf | 
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| 368 |  | 
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| 369 | /usr/local/lib | 
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| 370 | /opt/lib | 
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| 371 |  | 
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| 372 | # End /etc/ld.so.conf</literal> | 
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| 373 | EOF</userinput></screen> | 
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| 374 |  | 
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| 375 | </sect2> | 
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| 376 |  | 
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| 377 | <sect2 id="contents-glibc" role="content"> | 
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| 378 | <title>Contents of Glibc</title> | 
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| 379 |  | 
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| 380 | <segmentedlist> | 
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| 381 | <segtitle>Installed programs</segtitle> | 
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| 382 | <segtitle>Installed libraries</segtitle> | 
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| 383 | <segtitle>Installed directories</segtitle> | 
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| 384 |  | 
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| 385 | <seglistitem> | 
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| 386 | <seg>catchsegv, gencat, getconf, getent, iconv, iconvconfig, ldconfig, | 
|---|
| 387 | ldd, lddlibc4, locale, localedef, makedb, mtrace, nscd, | 
|---|
| 388 | pcprofiledump, pldd, rpcgen, sln, sotruss, sprof, tzselect, xtrace, | 
|---|
| 389 | zdump, zic</seg> | 
|---|
| 390 | <seg>ld.so, libBrokenLocale.[a,so], libSegFault.so, libanl.[a,so], | 
|---|
| 391 | libc.[a,so], libc_nonshared.a, libcidn.[a,so], libcrypt.[a,so], | 
|---|
| 392 | libdl.[a,so], libg.a, libieee.a, libm.[a,so], libmcheck.a, | 
|---|
| 393 | libmemusage.so, libnsl.a, libnss_compat.so, libnss_dns.so, | 
|---|
| 394 | libnss_files.so, libnss_hesiod.so, libnss_nis.so, libnss_nisplus.so, | 
|---|
| 395 | libpcprofile.so, libpthread.[a,so], libpthread_nonshared.a, | 
|---|
| 396 | libresolv.[a,so], librpcsvc.a, librt.[a,so], libthread_db.so, | 
|---|
| 397 | libutil.[a,so]</seg> | 
|---|
| 398 | <seg>/usr/include/arpa, /usr/include/bits, /usr/include/gnu, | 
|---|
| 399 | /usr/include/net, /usr/include/netash, /usr/include/netatalk, | 
|---|
| 400 | /usr/include/netax25, /usr/include/neteconet, /usr/include/netinet, | 
|---|
| 401 | /usr/include/netipx, /usr/include/netiucv, /usr/include/netpacket, | 
|---|
| 402 | /usr/include/netrom, /usr/include/netrose, /usr/include/nfs, | 
|---|
| 403 | /usr/include/protocols, /usr/include/rpc, /usr/include/rpcsvc, | 
|---|
| 404 | /usr/include/scsi, /usr/include/sys, /usr/lib/audit, /usr/lib/gconv, | 
|---|
| 405 | /usr/lib/glibc, /usr/lib/locale, /usr/share/i18n, /usr/share/zoneinfo, | 
|---|
| 406 | /var/cache/ldconfig, /var/cache/nscd</seg> | 
|---|
| 407 | </seglistitem> | 
|---|
| 408 | </segmentedlist> | 
|---|
| 409 |  | 
|---|
| 410 | <variablelist> | 
|---|
| 411 | <bridgehead renderas="sect3">Short Descriptions</bridgehead> | 
|---|
| 412 | <?dbfo list-presentation="list"?> | 
|---|
| 413 | <?dbhtml list-presentation="table"?> | 
|---|
| 414 |  | 
|---|
| 415 | <varlistentry id="catchsegv"> | 
|---|
| 416 | <term><command>catchsegv</command></term> | 
|---|
| 417 | <listitem> | 
|---|
| 418 | <para>Can be used to create a stack trace when a program | 
|---|
| 419 | terminates with a segmentation fault</para> | 
|---|
| 420 | <indexterm zone="ch-system-glibc catchsegv"> | 
|---|
| 421 | <primary sortas="b-catchsegv">catchsegv</primary> | 
|---|
| 422 | </indexterm> | 
|---|
| 423 | </listitem> | 
|---|
| 424 | </varlistentry> | 
|---|
| 425 |  | 
|---|
| 426 | <varlistentry id="gencat"> | 
|---|
| 427 | <term><command>gencat</command></term> | 
|---|
| 428 | <listitem> | 
|---|
| 429 | <para>Generates message catalogues</para> | 
|---|
| 430 | <indexterm zone="ch-system-glibc gencat"> | 
|---|
| 431 | <primary sortas="b-gencat">gencat</primary> | 
|---|
| 432 | </indexterm> | 
|---|
| 433 | </listitem> | 
|---|
| 434 | </varlistentry> | 
|---|
| 435 |  | 
|---|
| 436 | <varlistentry id="getconf"> | 
|---|
| 437 | <term><command>getconf</command></term> | 
|---|
| 438 | <listitem> | 
|---|
| 439 | <para>Displays the system configuration values for file system specific | 
|---|
| 440 | variables</para> | 
|---|
| 441 | <indexterm zone="ch-system-glibc getconf"> | 
|---|
| 442 | <primary sortas="b-getconf">getconf</primary> | 
|---|
| 443 | </indexterm> | 
|---|
| 444 | </listitem> | 
|---|
| 445 | </varlistentry> | 
|---|
| 446 |  | 
|---|
| 447 | <varlistentry id="getent"> | 
|---|
| 448 | <term><command>getent</command></term> | 
|---|
| 449 | <listitem> | 
|---|
| 450 | <para>Gets entries from an administrative database</para> | 
|---|
| 451 | <indexterm zone="ch-system-glibc getent"> | 
|---|
| 452 | <primary sortas="b-getent">getent</primary> | 
|---|
| 453 | </indexterm> | 
|---|
| 454 | </listitem> | 
|---|
| 455 | </varlistentry> | 
|---|
| 456 |  | 
|---|
| 457 | <varlistentry id="iconv"> | 
|---|
| 458 | <term><command>iconv</command></term> | 
|---|
| 459 | <listitem> | 
|---|
| 460 | <para>Performs character set conversion</para> | 
|---|
| 461 | <indexterm zone="ch-system-glibc iconv"> | 
|---|
| 462 | <primary sortas="b-iconv">iconv</primary> | 
|---|
| 463 | </indexterm> | 
|---|
| 464 | </listitem> | 
|---|
| 465 | </varlistentry> | 
|---|
| 466 |  | 
|---|
| 467 | <varlistentry id="iconvconfig"> | 
|---|
| 468 | <term><command>iconvconfig</command></term> | 
|---|
| 469 | <listitem> | 
|---|
| 470 | <para>Creates fastloading <command>iconv</command> module configuration | 
|---|
| 471 | files</para> | 
|---|
| 472 | <indexterm zone="ch-system-glibc iconvconfig"> | 
|---|
| 473 | <primary sortas="b-iconvconfig">iconvconfig</primary> | 
|---|
| 474 | </indexterm> | 
|---|
| 475 | </listitem> | 
|---|
| 476 | </varlistentry> | 
|---|
| 477 |  | 
|---|
| 478 | <varlistentry id="ldconfig"> | 
|---|
| 479 | <term><command>ldconfig</command></term> | 
|---|
| 480 | <listitem> | 
|---|
| 481 | <para>Configures the dynamic linker runtime bindings</para> | 
|---|
| 482 | <indexterm zone="ch-system-glibc ldconfig"> | 
|---|
| 483 | <primary sortas="b-ldconfig">ldconfig</primary> | 
|---|
| 484 | </indexterm> | 
|---|
| 485 | </listitem> | 
|---|
| 486 | </varlistentry> | 
|---|
| 487 |  | 
|---|
| 488 | <varlistentry id="ldd"> | 
|---|
| 489 | <term><command>ldd</command></term> | 
|---|
| 490 | <listitem> | 
|---|
| 491 | <para>Reports which shared libraries are required | 
|---|
| 492 | by each given program or shared library</para> | 
|---|
| 493 | <indexterm zone="ch-system-glibc ldd"> | 
|---|
| 494 | <primary sortas="b-ldd">ldd</primary> | 
|---|
| 495 | </indexterm> | 
|---|
| 496 | </listitem> | 
|---|
| 497 | </varlistentry> | 
|---|
| 498 |  | 
|---|
| 499 | <varlistentry id="lddlibc4"> | 
|---|
| 500 | <term><command>lddlibc4</command></term> | 
|---|
| 501 | <listitem> | 
|---|
| 502 | <para>Assists <command>ldd</command> with object files</para> | 
|---|
| 503 | <indexterm zone="ch-system-glibc lddlibc4"> | 
|---|
| 504 | <primary sortas="b-lddlibc4">lddlibc4</primary> | 
|---|
| 505 | </indexterm> | 
|---|
| 506 | </listitem> | 
|---|
| 507 | </varlistentry> | 
|---|
| 508 |  | 
|---|
| 509 | <varlistentry id="locale"> | 
|---|
| 510 | <term><command>locale</command></term> | 
|---|
| 511 | <listitem> | 
|---|
| 512 | <para>Tells the compiler to enable or disable the use of POSIX locales | 
|---|
| 513 | for built-in operations</para> | 
|---|
| 514 | <indexterm zone="ch-system-glibc locale"> | 
|---|
| 515 | <primary sortas="b-locale">locale</primary> | 
|---|
| 516 | </indexterm> | 
|---|
| 517 | </listitem> | 
|---|
| 518 | </varlistentry> | 
|---|
| 519 |  | 
|---|
| 520 | <varlistentry id="localedef"> | 
|---|
| 521 | <term><command>localedef</command></term> | 
|---|
| 522 | <listitem> | 
|---|
| 523 | <para>Compiles locale specifications</para> | 
|---|
| 524 | <indexterm zone="ch-system-glibc localedef"> | 
|---|
| 525 | <primary sortas="b-localedef">localedef</primary> | 
|---|
| 526 | </indexterm> | 
|---|
| 527 | </listitem> | 
|---|
| 528 | </varlistentry> | 
|---|
| 529 |  | 
|---|
| 530 | <varlistentry id="makedb"> | 
|---|
| 531 | <term><command>makedb</command></term> | 
|---|
| 532 | <listitem> | 
|---|
| 533 | <para>Creates a simple database from textual input</para> | 
|---|
| 534 | <indexterm zone="ch-system-glibc makedb"> | 
|---|
| 535 | <primary sortas="b-makedb">makedb</primary> | 
|---|
| 536 | </indexterm> | 
|---|
| 537 | </listitem> | 
|---|
| 538 | </varlistentry> | 
|---|
| 539 |  | 
|---|
| 540 | <varlistentry id="mtrace"> | 
|---|
| 541 | <term><command>mtrace</command></term> | 
|---|
| 542 | <listitem> | 
|---|
| 543 | <para>Reads and interprets a memory trace file and | 
|---|
| 544 | displays a summary in human-readable format</para> | 
|---|
| 545 | <indexterm zone="ch-system-glibc mtrace"> | 
|---|
| 546 | <primary sortas="b-mtrace">mtrace</primary> | 
|---|
| 547 | </indexterm> | 
|---|
| 548 | </listitem> | 
|---|
| 549 | </varlistentry> | 
|---|
| 550 |  | 
|---|
| 551 | <varlistentry id="nscd"> | 
|---|
| 552 | <term><command>nscd</command></term> | 
|---|
| 553 | <listitem> | 
|---|
| 554 | <para>A daemon that provides a cache for the most common name | 
|---|
| 555 | service requests</para> | 
|---|
| 556 | <indexterm zone="ch-system-glibc nscd"> | 
|---|
| 557 | <primary sortas="b-nscd">nscd</primary> | 
|---|
| 558 | </indexterm> | 
|---|
| 559 | </listitem> | 
|---|
| 560 | </varlistentry> | 
|---|
| 561 |  | 
|---|
| 562 | <varlistentry id="pcprofiledump"> | 
|---|
| 563 | <term><command>pcprofiledump</command></term> | 
|---|
| 564 | <listitem> | 
|---|
| 565 | <para>Dumps information generated by PC profiling</para> | 
|---|
| 566 | <indexterm zone="ch-system-glibc pcprofiledump"> | 
|---|
| 567 | <primary sortas="b-pcprofiledump">pcprofiledump</primary> | 
|---|
| 568 | </indexterm> | 
|---|
| 569 | </listitem> | 
|---|
| 570 | </varlistentry> | 
|---|
| 571 |  | 
|---|
| 572 | <varlistentry id="pldd"> | 
|---|
| 573 | <term><command>pldd</command></term> | 
|---|
| 574 | <listitem> | 
|---|
| 575 | <para>Lists dynamic shared objects used by running processes</para> | 
|---|
| 576 | <indexterm zone="ch-system-glibc pldd"> | 
|---|
| 577 | <primary sortas="b-pldd">pldd</primary> | 
|---|
| 578 | </indexterm> | 
|---|
| 579 | </listitem> | 
|---|
| 580 | </varlistentry> | 
|---|
| 581 |  | 
|---|
| 582 | <varlistentry id="rpcgen"> | 
|---|
| 583 | <term><command>rpcgen</command></term> | 
|---|
| 584 | <listitem> | 
|---|
| 585 | <para>Generates C code to implement the Remote Procecure Call (RPC) | 
|---|
| 586 | protocol</para> | 
|---|
| 587 | <indexterm zone="ch-system-glibc rpcgen"> | 
|---|
| 588 | <primary sortas="b-rpcgen">rpcgen</primary> | 
|---|
| 589 | </indexterm> | 
|---|
| 590 | </listitem> | 
|---|
| 591 | </varlistentry> | 
|---|
| 592 |  | 
|---|
| 593 | <varlistentry id="sln"> | 
|---|
| 594 | <term><command>sln</command></term> | 
|---|
| 595 | <listitem> | 
|---|
| 596 | <para>A statically linked program that creates symbolic links</para> | 
|---|
| 597 | <indexterm zone="ch-system-glibc sln"> | 
|---|
| 598 | <primary sortas="b-sln">sln</primary> | 
|---|
| 599 | </indexterm> | 
|---|
| 600 | </listitem> | 
|---|
| 601 | </varlistentry> | 
|---|
| 602 |  | 
|---|
| 603 | <varlistentry id="sotruss"> | 
|---|
| 604 | <term><command>sotruss</command></term> | 
|---|
| 605 | <listitem> | 
|---|
| 606 | <para>Traces shared library procedure calls of a specified command</para> | 
|---|
| 607 | <indexterm zone="ch-system-glibc sotruss"> | 
|---|
| 608 | <primary sortas="b-sotruss">sotruss</primary> | 
|---|
| 609 | </indexterm> | 
|---|
| 610 | </listitem> | 
|---|
| 611 | </varlistentry> | 
|---|
| 612 |  | 
|---|
| 613 | <varlistentry id="sprof"> | 
|---|
| 614 | <term><command>sprof</command></term> | 
|---|
| 615 | <listitem> | 
|---|
| 616 | <para>Reads and displays shared object profiling data</para> | 
|---|
| 617 | <indexterm zone="ch-system-glibc sprof"> | 
|---|
| 618 | <primary sortas="b-sprof">sprof</primary> | 
|---|
| 619 | </indexterm> | 
|---|
| 620 | </listitem> | 
|---|
| 621 | </varlistentry> | 
|---|
| 622 |  | 
|---|
| 623 | <varlistentry id="tzselect"> | 
|---|
| 624 | <term><command>tzselect</command></term> | 
|---|
| 625 | <listitem> | 
|---|
| 626 | <para>Asks the user about the location of the | 
|---|
| 627 | system and reports the corresponding time zone description</para> | 
|---|
| 628 | <indexterm zone="ch-system-glibc tzselect"> | 
|---|
| 629 | <primary sortas="b-tzselect">tzselect</primary> | 
|---|
| 630 | </indexterm> | 
|---|
| 631 | </listitem> | 
|---|
| 632 | </varlistentry> | 
|---|
| 633 |  | 
|---|
| 634 | <varlistentry id="xtrace"> | 
|---|
| 635 | <term><command>xtrace</command></term> | 
|---|
| 636 | <listitem> | 
|---|
| 637 | <para>Traces the execution of a program by | 
|---|
| 638 | printing the currently executed function</para> | 
|---|
| 639 | <indexterm zone="ch-system-glibc xtrace"> | 
|---|
| 640 | <primary sortas="b-xtrace">xtrace</primary> | 
|---|
| 641 | </indexterm> | 
|---|
| 642 | </listitem> | 
|---|
| 643 | </varlistentry> | 
|---|
| 644 |  | 
|---|
| 645 | <varlistentry id="zdump"> | 
|---|
| 646 | <term><command>zdump</command></term> | 
|---|
| 647 | <listitem> | 
|---|
| 648 | <para>The time zone dumper</para> | 
|---|
| 649 | <indexterm zone="ch-system-glibc zdump"> | 
|---|
| 650 | <primary sortas="b-zdump">zdump</primary> | 
|---|
| 651 | </indexterm> | 
|---|
| 652 | </listitem> | 
|---|
| 653 | </varlistentry> | 
|---|
| 654 |  | 
|---|
| 655 | <varlistentry id="zic"> | 
|---|
| 656 | <term><command>zic</command></term> | 
|---|
| 657 | <listitem> | 
|---|
| 658 | <para>The time zone compiler</para> | 
|---|
| 659 | <indexterm zone="ch-system-glibc zic"> | 
|---|
| 660 | <primary sortas="b-zic">zic</primary> | 
|---|
| 661 | </indexterm> | 
|---|
| 662 | </listitem> | 
|---|
| 663 | </varlistentry> | 
|---|
| 664 |  | 
|---|
| 665 | <varlistentry id="ld.so"> | 
|---|
| 666 | <term><filename class="libraryfile">ld.so</filename></term> | 
|---|
| 667 | <listitem> | 
|---|
| 668 | <para>The helper program for shared library executables</para> | 
|---|
| 669 | <indexterm zone="ch-system-glibc ld.so"> | 
|---|
| 670 | <primary sortas="c-ld.so">ld.so</primary> | 
|---|
| 671 | </indexterm> | 
|---|
| 672 | </listitem> | 
|---|
| 673 | </varlistentry> | 
|---|
| 674 |  | 
|---|
| 675 | <varlistentry id="libBrokenLocale"> | 
|---|
| 676 | <term><filename class="libraryfile">libBrokenLocale</filename></term> | 
|---|
| 677 | <listitem> | 
|---|
| 678 | <para>Used by programs, such as Mozilla, to solve broken locales</para> | 
|---|
| 679 | <indexterm zone="ch-system-glibc libBrokenLocale"> | 
|---|
| 680 | <primary sortas="c-libBrokenLocale">libBrokenLocale</primary> | 
|---|
| 681 | </indexterm> | 
|---|
| 682 | </listitem> | 
|---|
| 683 | </varlistentry> | 
|---|
| 684 |  | 
|---|
| 685 | <varlistentry id="libSegFault"> | 
|---|
| 686 | <term><filename class="libraryfile">libSegFault</filename></term> | 
|---|
| 687 | <listitem> | 
|---|
| 688 | <para>The segmentation fault signal handler</para> | 
|---|
| 689 | <indexterm zone="ch-system-glibc libSegFault"> | 
|---|
| 690 | <primary sortas="c-libSegFault">libSegFault</primary> | 
|---|
| 691 | </indexterm> | 
|---|
| 692 | </listitem> | 
|---|
| 693 | </varlistentry> | 
|---|
| 694 |  | 
|---|
| 695 | <varlistentry id="libanl"> | 
|---|
| 696 | <term><filename class="libraryfile">libanl</filename></term> | 
|---|
| 697 | <listitem> | 
|---|
| 698 | <para>An asynchronous name lookup library</para> | 
|---|
| 699 | <indexterm zone="ch-system-glibc libanl"> | 
|---|
| 700 | <primary sortas="c-libanl">libanl</primary> | 
|---|
| 701 | </indexterm> | 
|---|
| 702 | </listitem> | 
|---|
| 703 | </varlistentry> | 
|---|
| 704 |  | 
|---|
| 705 | <varlistentry id="libc"> | 
|---|
| 706 | <term><filename class="libraryfile">libc</filename></term> | 
|---|
| 707 | <listitem> | 
|---|
| 708 | <para>The main C library</para> | 
|---|
| 709 | <indexterm zone="ch-system-glibc libc"> | 
|---|
| 710 | <primary sortas="c-libc">libc</primary> | 
|---|
| 711 | </indexterm> | 
|---|
| 712 | </listitem> | 
|---|
| 713 | </varlistentry> | 
|---|
| 714 |  | 
|---|
| 715 | <varlistentry id="libcidn"> | 
|---|
| 716 | <term><filename class="libraryfile">libcidn</filename></term> | 
|---|
| 717 | <listitem> | 
|---|
| 718 | <para>Used internally by Glibc for handling internationalized domain | 
|---|
| 719 | names in the <function>getaddrinfo()</function> function</para> | 
|---|
| 720 | <indexterm zone="ch-system-glibc libcidn"> | 
|---|
| 721 | <primary sortas="c-libcidn">libcidn</primary> | 
|---|
| 722 | </indexterm> | 
|---|
| 723 | </listitem> | 
|---|
| 724 | </varlistentry> | 
|---|
| 725 |  | 
|---|
| 726 | <varlistentry id="libcrypt"> | 
|---|
| 727 | <term><filename class="libraryfile">libcrypt</filename></term> | 
|---|
| 728 | <listitem> | 
|---|
| 729 | <para>The cryptography library</para> | 
|---|
| 730 | <indexterm zone="ch-system-glibc libcrypt"> | 
|---|
| 731 | <primary sortas="c-libcrypt">libcrypt</primary> | 
|---|
| 732 | </indexterm> | 
|---|
| 733 | </listitem> | 
|---|
| 734 | </varlistentry> | 
|---|
| 735 |  | 
|---|
| 736 | <varlistentry id="libdl"> | 
|---|
| 737 | <term><filename class="libraryfile">libdl</filename></term> | 
|---|
| 738 | <listitem> | 
|---|
| 739 | <para>The dynamic linking interface library</para> | 
|---|
| 740 | <indexterm zone="ch-system-glibc libdl"> | 
|---|
| 741 | <primary sortas="c-libdl">libdl</primary> | 
|---|
| 742 | </indexterm> | 
|---|
| 743 | </listitem> | 
|---|
| 744 | </varlistentry> | 
|---|
| 745 |  | 
|---|
| 746 | <varlistentry id="libg"> | 
|---|
| 747 | <term><filename class="libraryfile">libg</filename></term> | 
|---|
| 748 | <listitem> | 
|---|
| 749 | <para>A runtime library for <command>g++</command></para> | 
|---|
| 750 | <indexterm zone="ch-system-glibc libg"> | 
|---|
| 751 | <primary sortas="c-libg">libg</primary> | 
|---|
| 752 | </indexterm> | 
|---|
| 753 | </listitem> | 
|---|
| 754 | </varlistentry> | 
|---|
| 755 |  | 
|---|
| 756 | <varlistentry id="libieee"> | 
|---|
| 757 | <term><filename class="libraryfile">libieee</filename></term> | 
|---|
| 758 | <listitem> | 
|---|
| 759 | <para>The Institute of Electrical and Electronic Engineers (IEEE) | 
|---|
| 760 | floating point library</para> | 
|---|
| 761 | <indexterm zone="ch-system-glibc libieee"> | 
|---|
| 762 | <primary sortas="c-libieee">libieee</primary> | 
|---|
| 763 | </indexterm> | 
|---|
| 764 | </listitem> | 
|---|
| 765 | </varlistentry> | 
|---|
| 766 |  | 
|---|
| 767 | <varlistentry id="libm"> | 
|---|
| 768 | <term><filename class="libraryfile">libm</filename></term> | 
|---|
| 769 | <listitem> | 
|---|
| 770 | <para>The mathematical library</para> | 
|---|
| 771 | <indexterm zone="ch-system-glibc libm"> | 
|---|
| 772 | <primary sortas="c-libm">libm</primary> | 
|---|
| 773 | </indexterm> | 
|---|
| 774 | </listitem> | 
|---|
| 775 | </varlistentry> | 
|---|
| 776 |  | 
|---|
| 777 | <varlistentry id="libmcheck"> | 
|---|
| 778 | <term><filename class="libraryfile">libmcheck</filename></term> | 
|---|
| 779 | <listitem> | 
|---|
| 780 | <para>Contains code run at boot</para> | 
|---|
| 781 | <indexterm zone="ch-system-glibc libmcheck"> | 
|---|
| 782 | <primary sortas="c-libmcheck">libmcheck</primary> | 
|---|
| 783 | </indexterm> | 
|---|
| 784 | </listitem> | 
|---|
| 785 | </varlistentry> | 
|---|
| 786 |  | 
|---|
| 787 | <varlistentry id="libmemusage"> | 
|---|
| 788 | <term><filename class="libraryfile">libmemusage</filename></term> | 
|---|
| 789 | <listitem> | 
|---|
| 790 | <para>Used by <command>memusage</command> (included in Glibc, but | 
|---|
| 791 | not built in a base CLFS system as it has additional dependencies) | 
|---|
| 792 | to help collect information about the memory usage of a program</para> | 
|---|
| 793 | <indexterm zone="ch-system-glibc libmemusage"> | 
|---|
| 794 | <primary sortas="c-libmemusage">libmemusage</primary> | 
|---|
| 795 | </indexterm> | 
|---|
| 796 | </listitem> | 
|---|
| 797 | </varlistentry> | 
|---|
| 798 |  | 
|---|
| 799 | <varlistentry id="libnsl"> | 
|---|
| 800 | <term><filename class="libraryfile">libnsl</filename></term> | 
|---|
| 801 | <listitem> | 
|---|
| 802 | <para>The network services library</para> | 
|---|
| 803 | <indexterm zone="ch-system-glibc libnsl"> | 
|---|
| 804 | <primary sortas="c-libnsl">libnsl</primary> | 
|---|
| 805 | </indexterm> | 
|---|
| 806 | </listitem> | 
|---|
| 807 | </varlistentry> | 
|---|
| 808 |  | 
|---|
| 809 | <varlistentry id="libnss"> | 
|---|
| 810 | <term><filename class="libraryfile">libnss</filename></term> | 
|---|
| 811 | <listitem> | 
|---|
| 812 | <para>The Name Service Switch libraries, containing functions for | 
|---|
| 813 | resolving host names, user names, group names, aliases, services, | 
|---|
| 814 | protocols, etc.</para> | 
|---|
| 815 | <indexterm zone="ch-system-glibc libnss"> | 
|---|
| 816 | <primary sortas="c-libnss">libnss</primary> | 
|---|
| 817 | </indexterm> | 
|---|
| 818 | </listitem> | 
|---|
| 819 | </varlistentry> | 
|---|
| 820 |  | 
|---|
| 821 | <varlistentry id="libpcprofile"> | 
|---|
| 822 | <term><filename class="libraryfile">libpcprofile</filename></term> | 
|---|
| 823 | <listitem> | 
|---|
| 824 | <para>Contains profiling functions used to track the amount of CPU | 
|---|
| 825 | time spent in specific source code lines</para> | 
|---|
| 826 | <indexterm zone="ch-system-glibc libpcprofile"> | 
|---|
| 827 | <primary sortas="c-libpcprofile">libpcprofile</primary> | 
|---|
| 828 | </indexterm> | 
|---|
| 829 | </listitem> | 
|---|
| 830 | </varlistentry> | 
|---|
| 831 |  | 
|---|
| 832 | <varlistentry id="libpthread"> | 
|---|
| 833 | <term><filename class="libraryfile">libpthread</filename></term> | 
|---|
| 834 | <listitem> | 
|---|
| 835 | <para>The POSIX threads library</para> | 
|---|
| 836 | <indexterm zone="ch-system-glibc libpthread"> | 
|---|
| 837 | <primary sortas="c-libpthread">libpthread</primary> | 
|---|
| 838 | </indexterm> | 
|---|
| 839 | </listitem> | 
|---|
| 840 | </varlistentry> | 
|---|
| 841 |  | 
|---|
| 842 | <varlistentry id="libresolv"> | 
|---|
| 843 | <term><filename class="libraryfile">libresolv</filename></term> | 
|---|
| 844 | <listitem> | 
|---|
| 845 | <para>Contains functions for creating, sending, and interpreting | 
|---|
| 846 | packets to the Internet domain name servers</para> | 
|---|
| 847 | <indexterm zone="ch-system-glibc libresolv"> | 
|---|
| 848 | <primary sortas="c-libresolv">libresolv</primary> | 
|---|
| 849 | </indexterm> | 
|---|
| 850 | </listitem> | 
|---|
| 851 | </varlistentry> | 
|---|
| 852 |  | 
|---|
| 853 | <varlistentry id="librpcsvc"> | 
|---|
| 854 | <term><filename class="libraryfile">librpcsvc</filename></term> | 
|---|
| 855 | <listitem> | 
|---|
| 856 | <para>Contains functions providing miscellaneous RPC services</para> | 
|---|
| 857 | <indexterm zone="ch-system-glibc librpcsvc"> | 
|---|
| 858 | <primary sortas="c-librpcsvc">librpcsvc</primary> | 
|---|
| 859 | </indexterm> | 
|---|
| 860 | </listitem> | 
|---|
| 861 | </varlistentry> | 
|---|
| 862 |  | 
|---|
| 863 | <varlistentry id="librt"> | 
|---|
| 864 | <term><filename class="libraryfile">librt</filename></term> | 
|---|
| 865 | <listitem> | 
|---|
| 866 | <para>Contains functions providing most of the interfaces specified by | 
|---|
| 867 | the POSIX.1b Realtime Extension</para> | 
|---|
| 868 | <indexterm zone="ch-system-glibc librt"> | 
|---|
| 869 | <primary sortas="c-librt">librt</primary> | 
|---|
| 870 | </indexterm> | 
|---|
| 871 | </listitem> | 
|---|
| 872 | </varlistentry> | 
|---|
| 873 |  | 
|---|
| 874 | <varlistentry id="libthread_db"> | 
|---|
| 875 | <term><filename class="libraryfile">libthread_db</filename></term> | 
|---|
| 876 | <listitem> | 
|---|
| 877 | <para>Contains functions useful for | 
|---|
| 878 | building debuggers for multi-threaded programs</para> | 
|---|
| 879 | <indexterm zone="ch-system-glibc libthread_db"> | 
|---|
| 880 | <primary sortas="c-libthread_db">libthread_db</primary> | 
|---|
| 881 | </indexterm> | 
|---|
| 882 | </listitem> | 
|---|
| 883 | </varlistentry> | 
|---|
| 884 |  | 
|---|
| 885 | <varlistentry id="libutil"> | 
|---|
| 886 | <term><filename class="libraryfile">libutil</filename></term> | 
|---|
| 887 | <listitem> | 
|---|
| 888 | <para>Contains code for <quote>standard</quote> functions used in | 
|---|
| 889 | many different Unix utilities</para> | 
|---|
| 890 | <indexterm zone="ch-system-glibc libutil"> | 
|---|
| 891 | <primary sortas="c-libutil">libutil</primary> | 
|---|
| 892 | </indexterm> | 
|---|
| 893 | </listitem> | 
|---|
| 894 | </varlistentry> | 
|---|
| 895 |  | 
|---|
| 896 | </variablelist> | 
|---|
| 897 |  | 
|---|
| 898 | </sect2> | 
|---|
| 899 |  | 
|---|
| 900 | </sect1> | 
|---|