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<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.3//EN" "http://www.oasis-open.org/docbook/xml/4.3/docbookx.dtd" [
<!ENTITY % general-entities SYSTEM "../general.ent">
%general-entities;
]>
<sect1 id="ch-system-zlib" xreflabel="Zlib" role="wrap">
<title>Zlib-&zlib-version;</title>
<?dbhtml filename="zlib.html"?>
<indexterm zone="ch-system-zlib"><primary sortas="a-Zlib">Zlib</primary></indexterm>
<sect2 role="package"><title/>
<para>The Zlib package contains compression and un-compression routines used by
some programs.</para>
<segmentedlist>
<segtitle>&buildtime;</segtitle>
<segtitle>&diskspace;</segtitle>
<seglistitem><seg>0.1 SBU</seg><seg>1.5 MB</seg></seglistitem>
</segmentedlist>
<segmentedlist>
<segtitle>Zlib installation depends on</segtitle>
<seglistitem><seg>Binutils, Coreutils, GCC, Glibc, Make, Sed</seg></seglistitem>
</segmentedlist>
</sect2>
<sect2 role="installation">
<title>Installation of Zlib</title>
<note><para>Zlib is known to build its shared library incorrectly if CFLAGS is
specified in the environment. If you are using your own CFLAGS variable, be
sure to add the <parameter>-fPIC</parameter> directive to your CFLAGS for the
duration of the below <command>configure</command> command, then remove it
afterwards.</para></note>
<para>Prepare Zlib for compilation:</para>
<screen><userinput>./configure --prefix=/usr --shared --libdir=/lib</userinput></screen>
<para>Compile the package:</para>
<screen><userinput>make</userinput></screen>
<para>To test the results, issue:
<userinput>make check</userinput>.</para>
<para>Install the shared library:</para>
<screen><userinput>make install</userinput></screen>
<para>Now we will remove the old, .so files in /lib and relink them into /usr/lib.</para>
<screen><userinput>rm /lib/libz.so
ln -sf ../../lib/libz.so.&zlib-version; /usr/lib/libz.so</userinput></screen>
<para>Now also build the non-shared (static) library:</para>
<screen><userinput>make clean
./configure --prefix=/usr
make</userinput></screen>
<para>To again test the results, issue:
<userinput>make check</userinput>.</para>
<para>Install the static library:</para>
<screen><userinput>make install</userinput></screen>
<para>And fix the permissions on the static library:</para>
<screen><userinput>chmod 644 /usr/lib/libz.a</userinput></screen>
</sect2>
<sect2 id="contents-zlib" role="content"><title>Contents of Zlib</title>
<segmentedlist>
<segtitle>Installed libraries</segtitle>
<seglistitem><seg>libz[a,so]</seg></seglistitem>
</segmentedlist>
<variablelist><title>Short description</title>
<varlistentry id="libz">
<term><filename class="libraryfile">libz*</filename></term>
<listitem>
<indexterm zone="ch-system-zlib libz"><primary sortas="c-libz*">libz*</primary></indexterm>
<para>contains compression and un-compression
functions used by some programs.</para>
</listitem>
</varlistentry>
</variablelist>
</sect2>
</sect1>
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