[52d29f7] | 1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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[ff769b8c] | 2 | <!DOCTYPE chapter PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN"
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| 3 | "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd" [
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[52d29f7] | 4 | <!ENTITY % general-entities SYSTEM "../../general.ent">
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| 5 | %general-entities;
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[8e75f8b9] | 6 | ]>
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[52d29f7] | 7 |
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[f45b1953] | 8 | <chapter id="general-genlib">
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[03735e97] | 9 | <?dbhtml filename="genlib.html"?>
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[8e75f8b9] | 10 |
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[03735e97] | 11 | <title>General Libraries</title>
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[8e75f8b9] | 12 |
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[03735e97] | 13 | <para>Libraries contain code which is often required by more than
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| 14 | one program. This has the advantage that each program doesn't need to
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| 15 | duplicate code (and risk introducing bugs), it just has to call
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| 16 | functions from the libraries installed on the system. The most obvious
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[74390482] | 17 | example of a set of libraries is <application>Glibc</application> which is
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| 18 | installed during the LFS book. This contains all of the
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[03735e97] | 19 | <application>C</application> library functions which programs use.</para>
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[8e75f8b9] | 20 |
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[74390482] | 21 | <para>There are two types of libraries: static and shared. Shared libraries
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[03735e97] | 22 | (usually <filename>libXXX.so</filename>) are loaded into memory from the shared
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| 23 | copy at runtime (hence the name). Static libraries (<filename>libXXX.a
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[74390482] | 24 | </filename>) are actually linked into the program executable file itself, thus
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| 25 | making the program file larger. Quite often, you will find both static and
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[03735e97] | 26 | shared copies of the same library on your system.</para>
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[8e75f8b9] | 27 |
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[03735e97] | 28 | <para>Generally, you only need to install libraries when you are
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| 29 | installing software that needs the functionality they supply. In
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[74390482] | 30 | the BLFS book, each package is presented with a list of
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| 31 | (known) dependencies. Thus, you can figure out which libraries you need to
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| 32 | have before installing that program. If you are installing something without
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| 33 | using BLFS instructions, usually the <filename>README</filename> or
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| 34 | <filename>INSTALL</filename> file will contain
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[03735e97] | 35 | details of the program's requirements.</para>
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[8e75f8b9] | 36 |
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| 37 | <para>There are certain libraries which nearly <emphasis>everyone</emphasis>
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[74390482] | 38 | will need at some point. In this chapter we list these and some others and
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[03735e97] | 39 | explain why you may want to install them.</para>
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[8e75f8b9] | 40 |
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[03735e97] | 41 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="pcre.xml"/>
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| 42 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="popt.xml"/>
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| 43 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="slang.xml"/>
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[b7ea972] | 44 | <!-- <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="fam.xml"/> -->
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| 45 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="gamin.xml"/>
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[03735e97] | 46 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="libxml.xml"/>
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| 47 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="libxml2.xml"/>
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| 48 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="libxslt.xml"/>
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| 49 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="gmp.xml"/>
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| 50 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="gdbm.xml"/>
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| 51 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="glib.xml"/>
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| 52 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="glib2.xml"/>
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| 53 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="libidl.xml"/>
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| 54 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="libcroco.xml"/>
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| 55 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="libgsf.xml"/>
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| 56 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="libglade.xml"/>
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| 57 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="expat.xml"/>
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| 58 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="libesmtp.xml"/>
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| 59 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="aspell.xml"/>
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| 60 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="ispell.xml"/>
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| 61 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="slib.xml"/>
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| 62 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="gwrap.xml"/>
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| 63 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="lzo.xml"/>
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| 64 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="libusb.xml"/>
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[52d29f7] | 65 |
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[f45b1953] | 66 | </chapter>
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