source: clfs-sysroot/BOOK/final-system/common/bash.xml@ 827693b

<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN"
  "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd" [
  <!ENTITY % general-entities SYSTEM "../../general.ent">
  %general-entities;
]>

<sect1 id="ch-system-bash" role="wrap">
  <?dbhtml filename="bash.html"?>

  <title>Bash-&bash-version;</title>

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

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

    <para>The Bash package contains the Bourne-Again SHell.</para>

  </sect2>

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

    <para os="a">If you downloaded the Bash documentation tarball and wish to
    install HTML documentation, issue the following commands:</para>

<screen os="b"><userinput>tar -xvf ../bash-doc-&bash-doc-version;.tar.gz
cp Makefile.in{,.orig}
sed "s|htmldir = @htmldir@|htmldir = /usr/share/doc/bash-&bash-version;|" \
    Makefile.in.orig &gt; Makefile.in</userinput></screen>

    <para os="p1">The following patch contains updates from the maintainer. The
    maintainer of Bash only releases these patches to fix serious issues.</para>

<screen os="p2"><userinput>patch -Np1 -i ../&bash-fixes-patch;</userinput></screen>

    <para os="c">Create a config.cache containing information that is not
    properly detected when cross compiling:</para>

<screen os="d"><userinput>echo "ac_cv_func_setvbuf_reversed=no" &gt; config.cache
echo "bash_cv_sys_named_pipes=yes" &gt;&gt; config.cache</userinput></screen>

    <variablelist>
      <varlistentry>
        <term><parameter>bash_cv_sys_named_pipes=yes</parameter></term>
        <listitem>
          <para>When bash is cross-compiled, it cannot test for the presence
          of named pipes. If you used <command>su</command> to become an
          unprivileged user, this combination will cause Bash to build without
          <emphasis>process substitution</emphasis></para>
        </listitem>
      </varlistentry>
    </variablelist>

    <para os="e">Prepare Bash for compilation:</para>

<screen os="f"><userinput>./configure --build=${CLFS_HOST} --host=${CLFS_TARGET} \
    --prefix=/usr --bindir=/bin --cache-file=config.cache \
    --without-bash-malloc --with-installed-readline</userinput></screen>

    <variablelist os="g">
      <title>The meaning of the configure option:</title>

      <varlistentry>
        <term><parameter>--with-installed-readline</parameter></term>
        <listitem>
          <para>This option tells Bash to use the
          <filename class="libraryfile">readline</filename> library that is
          already installed on the system rather than using its own readline
          version.</para>
        </listitem>
      </varlistentry>
    </variablelist>

    <para os="h">Compile the package:</para>

<screen os="i"><userinput>make</userinput></screen>

    <para os="j">Install the package:</para>

<screen os="k"><userinput>make DESTDIR=${CLFS} install</userinput></screen>

    <para os="l">Create /bin/sh:</para>

<screen os="m"><userinput>ln -sv bash ${CLFS}/bin/sh</userinput></screen>

  </sect2>

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

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

      <seglistitem>
        <seg>bash, bashbug, and sh (link to bash)</seg>
      </seglistitem>
    </segmentedlist>

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

      <varlistentry id="bash">
        <term><command>bash</command></term>
        <listitem>
          <para>A widely-used command interpreter; it performs many types of
          expansions and substitutions on a given command line before executing
          it, thus making this interpreter a powerful tool</para>
          <indexterm zone="ch-system-bash bash">
            <primary sortas="b-bash">bash</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="bashbug">
        <term><command>bashbug</command></term>
        <listitem>
          <para>A shell script to help the user compose and mail standard
          formatted bug reports concerning <command>bash</command></para>
          <indexterm zone="ch-system-bash bashbug">
            <primary sortas="b-bashbug">bashbug</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="sh">
        <term><command>sh</command></term>
        <listitem>
          <para>A symlink to the <command>bash</command> program; when invoked
          as <command>sh</command>, <command>bash</command> tries to mimic the
          startup behavior of historical versions of <command>sh</command> as
          closely as possible, while conforming to the POSIX standard as
          well</para>
          <indexterm zone="ch-system-bash sh">
            <primary sortas="b-sh">sh</primary>
          </indexterm>
        </listitem>
      </varlistentry>

    </variablelist>

  </sect2>

</sect1>