lfs-book-zh_CN/chapter06/libffi.xml

<?xml version="1.0" encoding="UTF-8"?>
<!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-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>Libffi 库提供一个可移植的高级编程接口，用于处理不同调用惯例。
    这允许程序员在运行时调用任何指定了调用接口说明的函数。</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>安装 Libffi</title>

	<para>修改 Makefile ，将头文件安装到标准的
    <filename class="directory">/usr/include</filename> 目录，而不是
    <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>准备安装 libffi：</para>

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

    <para>编译该软件包：</para>

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

    <para>运行下列命令以测试编译结果：</para>

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

    <para>安装该软件包：</para>

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

  </sect2>

  <sect2 id="contents-libffi" role="content">
    <title>Libffi 的内容</title>

    <segmentedlist>
      <segtitle>安装的库</segtitle>

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

    <variablelist>
      <bridgehead renderas="sect3">简要描述</bridgehead>
      <?dbfo list-presentation="list"?>
      <?dbhtml list-presentation="table"?>

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

  </sect2>

</sect1>