source: chapter06/config-ldso.xml@ 55a3935

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Last change on this file since 55a3935 was c15f4a7, checked in by Gerard Beekmans <gerard@…>, 22 years ago

removed /lib and /usr/lib from ld.so.conf, updated explanation of the file's usage

git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@1662 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

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1<sect2>
2<title>Configuring Dynamic Loader</title>
3
4<para>By default, the dynamic loader
5(<filename>/lib/ld-linux.so.2</filename>) searches through <filename
6class="directory">/lib</filename> and <filename
7class="directory">/usr/lib</filename> for dynamic libraries that are needed
8by programs when you run them. However, if there are libraries in
9directories other than <filename class="directory">/lib</filename> and
10<filename class="directory">/usr/lib</filename>, you need to add them to
11the <filename>/etc/ld.so.conf</filename> file in order for the dynamic
12loader to find them. One directory that is very common to contain
13additional libraries is <filename
14class="directory">/usr/local/lib</filename> so we add that directory to the
15dynamic loader's search path.</para>
16
17<para>Create a new file <filename>/etc/ld.so.conf</filename> by running the
18following:</para>
19
20<para><screen><userinput>cat &gt; /etc/ld.so.conf &lt;&lt; "EOF"</userinput>
21# Begin /etc/ld.so.conf
22
23/usr/local/lib
24
25# End /etc/ld.so.conf
26<userinput>EOF</userinput></screen></para>
27
28<para>Although it's not necessary to add the
29<filename class="directory">/lib</filename> and
30<filename class="directory">/usr/lib</filename> directories it doesn't
31hurt. This way it can be seen right away what's being searched and a you
32don't have to remember the default search paths if you don't want to.</para>
33
34</sect2>
35
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