source: general/genlib/genlib.xml@ 1ea79a1

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Last change on this file since 1ea79a1 was 1ea79a1, checked in by Bruce Dubbs <bdubbs@…>, 17 years ago

Typos and punctuation

git-svn-id: svn://svn.linuxfromscratch.org/BLFS/trunk/BOOK@2236 af4574ff-66df-0310-9fd7-8a98e5e911e0

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1<chapter id="general-genlib">
2<?dbhtml filename="genlib.html"?>
3<title>General Libraries</title>
4
5<para>Libraries contain code which is often required by more than
6one program. This has the advantage that each program doesn't need to
7duplicate code (and risk introducing bugs), it just has to call
8functions from the libraries installed on the system. The most obvious
9example of a set of libraries is <application>glibc</application> which is
10installed during the <acronym>LFS</acronym> book. This contains all of
11the <application>C</application> library functions which programs use.</para>
12
13<para>There are two types of libraries: static and shared. Shared libraries
14(usually <filename>libXXX.so</filename>) are loaded into memory from the shared
15copy at runtime (hence the name). Static libraries (<filename>libXXX.a
16</filename>) are actually linked into the program executable file itself, thus
17making the program file larger. Quite often, you will find both static and
18shared copies of the same library on your system.</para>
19
20<para>Generally, you only need to install libraries when you are
21installing software that needs the functionality they supply. In
22the <acronym>BLFS</acronym> book, each package is presented with a list of (known)
23dependencies. Thus, you can figure out which libraries you need to have
24before installing that program. If you are installing something without
25using <acronym>BLFS</acronym> instructions, usually the <filename>README</filename>
26or <filename>INSTALL</filename> file will contain details of the
27program's requirements.</para>
28
29<para>There are certain libraries which nearly <emphasis>everyone</emphasis>
30will need at some point. In this chapter we list these and some others and
31explain why you may want to install them.</para>
32
33&openssl;
34&pcre;
35&popt;
36&slang;
37&fam;
38&libxml;
39&libxml2;
40&libxslt;
41&readline;
42&gmp;
43&gdbm;
44&GLib;
45&GLib2;
46&expat;
47&libesmtp;
48&aspell;
49&ispell;
50&guile;
51&slib;
52&gwrap;
53&LZO;
54&libpcap;
55&libusb;
56</chapter>
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