lfs-book/chapter06/libffi.xml

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  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
  <!ENTITY % general-entities SYSTEM "../general.ent">
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<sect1 id="ch-system-libffi" role="wrap">
  <?dbhtml filename="libffi.html"?>

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

  <title>libffi-&libffi-version;</title>

  <indexterm zone="ch-system-libffi">
    <primary sortas="a-libffi">libffi</primary>
  </indexterm>

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

    <para>The libffi library provides a portable, high level programming
    interface to various calling conventions. This allows a programmer to call
    any function specified by a call interface description at run time.</para>

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

      <seglistitem>
        <seg>&libffi-ch6-sbu;</seg>
        <seg>&libffi-ch6-du;</seg>
      </seglistitem>
    </segmentedlist>

  </sect2>

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

    <para>Modify the Makefile to install headers into the standard
    <filename class="directory">/usr/include</filename> directory instead of
    <filename class="directory">/usr/lib/libffi-3.2.1/include</filename>.</para>

<screen><userinput remap="pre">sed -e '/^includesdir/ s/$(libdir).*$/$(includedir)/' \
    -i include/Makefile.in

sed -e '/^includedir/ s/=.*$/=@includedir@/' \
    -e 's/^Cflags: -I${includedir}/Cflags:/' \
    -i libffi.pc.in</userinput></screen>

    <para>Prepare libffi for compilation:</para>

<screen><userinput remap="configure">./configure --prefix=/usr --disable-static</userinput></screen>

    <para>Compile the package:</para>

<screen><userinput remap="make">make</userinput></screen>

    <para>To test the results, issue:</para>

<screen><userinput remap="test">make check</userinput></screen>

    <para>Install the package:</para>

<screen><userinput remap="install">make install</userinput></screen>

  </sect2>

  <sect2 id="contents-libffi" role="content">
    <title>Contents of libffi</title>

    <segmentedlist>
      <segtitle>Installed library</segtitle>

      <seglistitem>
        <seg>libffi.so</seg>
      </seglistitem>
    </segmentedlist>

    <variablelist>
      <bridgehead renderas="sect3">Short Descriptions</bridgehead>
      <?dbfo list-presentation="list"?>
      <?dbhtml list-presentation="table"?>

      <varlistentry id="libffi">
        <term><filename class="libraryfile">libffi</filename></term>
        <listitem>
          <para>contains the libffi API functions.</para>
          <indexterm zone="ch-system-libffi">
            <primary sortas="c-libffi">libffi</primary>
          </indexterm>
        </listitem>
      </varlistentry>
    </variablelist>

  </sect2>

</sect1>