lfs-book/chapter08/bc.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-system-bc" role="wrap">
  <?dbhtml filename="bc.html"?>

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

  <title>Bc-&bc-version;</title>

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

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

    <para>The Bc package contains an arbitrary precision numeric processing 
    language.</para>

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

      <seglistitem>
        <seg>&bc-fin-sbu;</seg>
        <seg>&bc-fin-du;</seg>
      </seglistitem>
    </segmentedlist>

  </sect2>

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

    <para>First, fix an error in the configure script::</para>

<screen><userinput remap="pre">sed -i '612d' configure.sh</userinput></screen>

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

<screen><userinput remap="configure">PREFIX=/usr CC=gcc ./configure.sh -G -O3</userinput></screen>

    <variablelist>
      <title>The meaning of the configure options:</title>

      <varlistentry>
        <term><parameter>CC=gcc"</parameter></term>
        <listitem>
          <para>These parameters specify the compiler to use.</para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><parameter>-O3</parameter></term>
        <listitem>
          <para>Specify the optimization to use.</para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><parameter>-G</parameter></term>
        <listitem>
          <para>Omit  parts of the test suite that won't work
          without a GNU bc present.</para>
        </listitem>
      </varlistentry>
    </variablelist>

    <para>Compile the package:</para>

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

    <para>To test bc, run:</para>

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


    <para>Install the package:</para>

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

  </sect2>

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

    <segmentedlist>
      <segtitle>Installed programs</segtitle>

      <seglistitem>
        <seg>bc and dc</seg>
      </seglistitem>
    </segmentedlist>

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

      <varlistentry id="bc">
        <term><command>bc</command></term>
        <listitem>
          <para>A command line calculator</para>
          <indexterm zone="ch-system-bc bc">
            <primary sortas="b-bc">bc</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="dc">
        <term><command>dc</command></term>
        <listitem>
          <para>A reverse-polish command line calculator</para>
          <indexterm zone="ch-system-bc dc">
            <primary sortas="b-dc">dc</primary>
          </indexterm>
        </listitem>
      </varlistentry>

    </variablelist>

  </sect2>

</sect1>