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6.22. Readline-5.0
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Linux From Scratch - Version 6.1
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Chapter 6. 安装系统基础软件
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6.22. Readline-5.0
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<p>Readline 软件包是一个提供命令行编辑和历史纪录功能的库集合。
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<strong><span class="segtitle">预计编译时间：</span></strong> <span class="seg">0.11 SBU</span>
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<strong><span class="segtitle">所需磁盘空间：</span></strong> <span class="seg">9.1 MB</span>
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<strong><span class="segtitle">安装依赖于：</span></strong> <span class="seg">Binutils, Coreutils, Diffutils, Gawk, GCC, Glibc, Grep, Make, Ncurses, Sed</span>
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6.22.1. 安装 Readline
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<p>下面的补丁修正了 Readline 有时在命令行上只显示33个字符就转到下一行的问题，同时还包含了 Readline 作者推荐的其它补丁：
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<pre class="userinput"><kbd class="command">patch -Np1 -i ../readline-5.0-fixes-1.patch</kbd></pre>
<p>准备编译 Readline：
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<pre class="userinput"><kbd class="command">./configure --prefix=/usr --libdir=/lib</kbd></pre>
<p>编译软件包：</p>
<pre class="userinput"><kbd class="command">make SHLIB_XLDFLAGS=-lncurses</kbd></pre>
<p>make 选项的含义：
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<span class="term"><em class="parameter"><tt>SHLIB_XLDFLAGS=-lncurses</tt></em></span>
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<p>这个选项强制 Readline 链接到 <tt class="filename">libncurses</tt> 库。
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安装软件包：
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<pre class="userinput"><kbd class="command">make install</kbd></pre>
<p>给 Readline 的更多恰当的权限：
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<pre class="userinput"><kbd class="command">chmod 755 /lib/lib{readline,history}.so*</kbd></pre>
<p>将静态库移动到一个更合理的位置：</p>
<pre class="userinput"><kbd class="command">mv /lib/lib{readline,history}.a /usr/lib</kbd></pre>
<p>删除 <tt class="filename">/lib</tt> 中的 <tt class="filename">.so</tt> 文件，并将它们重新连接到 <tt class="filename">/usr/lib</tt> 中：
</p>
<pre class="userinput"><kbd class="command">rm /lib/lib{readline,history}.so
ln -sf ../../lib/libreadline.so.5 /usr/lib/libreadline.so
ln -sf ../../lib/libhistory.so.5 /usr/lib/libhistory.so</kbd></pre>
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6.22.2. Readline 的内容：
</h2>
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<strong><span class="segtitle">安装的库：</span></strong> <span class="seg">libhistory.[a,so], libreadline.[a,so]</span>
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<a id="id3322124" name="id3322124"></a>简要描述</h3>
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<a id="libhistory" name="libhistory"></a><span class="term"><tt class="filename">libhistory</tt></span>
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<p>提供一个统一的调用历史行的用户接口。
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<a id="libreadline" name="libreadline"></a><span class="term"><tt class="filename">libreadline</tt></span>
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<p>应用于各种需要命令行接口的应用程序的统一的用户接口的辅助程序。
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