lfs-book/chapter07/bzip2.xml

<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
  <!ENTITY % general-entities SYSTEM "../general.ent">
  %general-entities;
]>

<sect1 id="ch-tools-bzip2" role="wrap">
  <?dbhtml filename="bzip2.html"?>

  <sect1info condition="script">
    <productname>bzip2</productname>
    <productnumber>&bzip2-version;</productnumber>
    <address>&bzip2-url;</address>
  </sect1info>

  <title>Bzip2-&bzip2-version;</title>

  <indexterm zone="ch-tools-bzip2">
    <primary sortas="a-Bzip2">Bzip2</primary>
    <secondary>tools</secondary>
  </indexterm>

  <sect2 role="package">
    <title/>

    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
    href="../chapter06/bzip2.xml"
    xpointer="xpointer(/sect1/sect2[1]/para[1])"/>

    <segmentedlist>
      <segtitle>&buildtime;</segtitle>
      <segtitle>&diskspace;</segtitle>

      <seglistitem>
        <seg>&bzip2-ch5-sbu;</seg>
        <seg>&bzip2-ch5-du;</seg>
      </seglistitem>
    </segmentedlist>

  </sect2>

  <sect2 role="installation">
    <title>Installation of Bzip2</title>

    <para>Apply a patch that will install the documentation for this
    package:</para>

<screen><userinput remap="pre">patch -Np1 -i ../&bzip2-docs-patch;</userinput></screen>

    <para>The following command ensures installation of symbolic links are
    relative:</para>

<screen><userinput remap="pre">sed -i 's@\(ln -s -f \)$(PREFIX)/bin/@\1@' Makefile</userinput></screen>

    <para>Ensure the man pages are installed into the correct location:</para>

<screen><userinput remap="pre">sed -i "s@(PREFIX)/man@(PREFIX)/share/man@g" Makefile</userinput></screen>

    <para>The Bzip2 package does not contain a <command>configure</command>
    script. There are two <filename>Makefile</filename>, one for the shared
    library, and the other for the static library. Since we need both, We
    do the compilation in two stages. First the shared library:</para>

<screen><userinput remap="make">make CC=$LFS_TGT-gcc -f Makefile-libbz2_so
make clean</userinput></screen>

    <variablelist>
      <title>The meaning of the make parameter:</title>

      <varlistentry>
        <term><parameter>-f Makefile-libbz2_so</parameter></term>
        <listitem>
          <para>This will cause Bzip2 to be built using a different
          <filename>Makefile</filename> file, in this case the
          <filename>Makefile-libbz2_so</filename> file, which creates a dynamic
          <filename class="libraryfile">libbz2.so</filename> library and links
          the Bzip2 utilities against it.</para>
        </listitem>
      </varlistentry>

    </variablelist>

    <para>Compile and test the package with:</para>

<screen><userinput remap="make">make CC=$LFS_TGT-gcc AR=$LFS_TGT-ar RANLIB=$LFS_TGT-ranlib</userinput></screen>

    <para>Install the package:</para>

<screen><userinput remap="install">make PREFIX=$LFS/usr install</userinput></screen>

    <para>Install the shared <command>bzip2</command> binary into the
    <filename class="directory">/bin</filename> directory, make some necessary
    symbolic links, and clean up:</para>

<screen><userinput remap="install">cp -v bzip2-shared $LFS/bin/bzip2
cp -av libbz2.so* $LFS/lib
ln -sv ../../lib/libbz2.so.1.0 $LFS/usr/lib/libbz2.so
rm -v $LFS/usr/bin/{bunzip2,bzcat,bzip2}
ln -sv bzip2 $LFS/bin/bunzip2
ln -sv bzip2 $LFS/bin/bzcat</userinput></screen>

  </sect2>

  <sect2 role="content">
    <title/>
    <para>Details on this package are located in
    <xref linkend="contents-bzip2" role="."/></para>

  </sect2>

</sect1>