mirror of https://github.com/tLDP/LDP
78 lines
2.4 KiB
XML
78 lines
2.4 KiB
XML
<sect1 id="ch06-zlib">
|
|
<title>Installing Zlib-&zlib-version;</title>
|
|
<?dbhtml filename="zlib.html" dir="chapter06"?>
|
|
|
|
<screen>Estimated build time: &zlib-time;
|
|
Estimated required disk space: &zlib-compsize;</screen>
|
|
|
|
&aa-zlib-shortdesc;
|
|
&aa-zlib-dep;
|
|
|
|
<sect2><title> </title><para> </para></sect2>
|
|
|
|
<sect2>
|
|
<title>Installation of Zlib</title>
|
|
|
|
<para>Zlib has a potential buffer overflow in its
|
|
<emphasis>gzprintf()</emphasis> function, that, though difficult to take
|
|
advantage of, should be taken care of by applying this patch:</para>
|
|
|
|
<screen><userinput>patch -Np1 -i ../&zlib-patch;</userinput></screen>
|
|
|
|
<para>Now prepare Zlib for compilation:</para>
|
|
|
|
<screen><userinput>./configure --prefix=/usr --shared</userinput></screen>
|
|
|
|
<para>Note: Zlib is known to build its shared library incorrectly if a CFLAGS
|
|
is specified in the environment. If you are using your own CFLAGS variables,
|
|
ensure you add the <emphasis role="strong">-fPIC</emphasis> directive during
|
|
this stage, and remove it afterwards.</para>
|
|
|
|
<para>Compile the package:</para>
|
|
|
|
<screen><userinput>make</userinput></screen>
|
|
|
|
<para>Install the shared libraries:</para>
|
|
|
|
<screen><userinput>make install</userinput></screen>
|
|
|
|
<para>Now also build the non-shared libraries:</para>
|
|
<screen><userinput>make clean
|
|
./configure --prefix=/usr
|
|
make</userinput></screen>
|
|
|
|
<para>This package has a test suite available which can perform a number of
|
|
checks to ensure it built correctly. Should you choose to run it, the
|
|
following command will do so:</para>
|
|
|
|
<screen><userinput>make test</userinput></screen>
|
|
|
|
<para>And install the package:</para>
|
|
|
|
<screen><userinput>make install</userinput></screen>
|
|
|
|
<para>The shared Zlib library should be installed in the
|
|
<filename>/lib</filename> directory. That way, in the event
|
|
that you must boot without the <filename>/usr</filename>
|
|
directory, vital system programs will still have access to
|
|
the library:</para>
|
|
|
|
<screen><userinput>mv /usr/lib/libz.so.* /lib</userinput></screen>
|
|
|
|
<para>The <filename>/usr/lib/libz.so</filename> symlink is
|
|
linked to a file which no longer exists, because we moved
|
|
it. Create a symbolic link to the new location of the
|
|
library:</para>
|
|
|
|
<screen><userinput>ln -sf ../../lib/libz.so.1 /usr/lib/libz.so</userinput></screen>
|
|
|
|
<para>Zlib does not install its manual page. Issue the
|
|
following command to install this documentation:</para>
|
|
|
|
<screen><userinput>cp zlib.3 /usr/share/man/man3</userinput></screen>
|
|
|
|
</sect2>
|
|
|
|
</sect1>
|
|
|