lfs-book/chapter06/perl.xml

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<sect1 id="ch-system-perl" role="wrap">
<title>Perl-&perl-version;</title>
<?dbhtml filename="perl.html"?>

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

<sect2 role="package"><title/>
<para>The Perl package contains the Practical Extraction and Report Language.</para>

<segmentedlist>
<segtitle>&buildtime;</segtitle>
<segtitle>&diskspace;</segtitle>
<seglistitem><seg>2.9 SBU</seg><seg>137 MB</seg></seglistitem>
</segmentedlist>

<segmentedlist>
<segtitle>&dependencies;</segtitle>
<seglistitem><seg>Bash, Berkeley DB, Binutils, Coreutils, Diffutils,
Gawk, GCC, Glibc, Grep, Make, and Sed</seg></seglistitem>
</segmentedlist>
</sect2>

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

<para>A security vulnerability exists in Perl's sprintf function. Apply the
following patch to fix it.</para>

<screen><userinput>patch -Np1 -i ../&perl-sprintf-patch;</userinput></screen>

<para>The DB_File module that comes with Perl-&perl-version; is incompatible
with Berkeley DB-&db-version; (the testsuite fails if this module gets built).
Apply the following patch in order to update the DB_File module:</para>

<screen><userinput>patch -Np1 -i ../&perl-db_file-patch;</userinput></screen>

<para>First create a basic <filename>/etc/hosts</filename> file which will be
referenced in one of Perl's configuration files as well as being used used by
the testsuite if you run that.</para>

<screen><userinput>echo "127.0.0.1 localhost $(hostname)" &gt; /etc/hosts</userinput></screen>

<para>To have full control over the way Perl is set up, run the
interactive <command>Configure</command> script and hand-pick the way
this package is built. If the defaults it auto-detects are suitable,
prepare Perl for compilation with:</para>

<screen><userinput>./configure.gnu --prefix=/usr -Dpager="/usr/bin/less -isR"</userinput></screen>

<para>The meaning of the configure options:</para>

<variablelist>
<varlistentry>
<term><parameter>-Dpager="/usr/bin/less -isR"</parameter></term>
<listitem><para>This corrects an error in the way that
<command>perldoc</command> invokes the <command>less</command> program.</para>
</listitem>
</varlistentry>
</variablelist>

<para>Compile the package:</para>

<screen><userinput>make</userinput></screen>

<para>Now run the tests, if desired:</para>

<screen><userinput>make test</userinput></screen>

<para>Install the package:</para>

<screen><userinput>make install</userinput></screen>

</sect2>


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

<segmentedlist>
<segtitle>Installed programs</segtitle>
<segtitle>Installed libraries</segtitle>
<seglistitem><seg>a2p, c2ph, dprofpp, enc2xs,
find2perl, h2ph, h2xs, libnetcfg, perl, perl&perl-version; (link to perl),
perlbug, perlcc, perldoc, perlivp, piconv, pl2pm, pod2html, pod2latex, pod2man,
pod2text, pod2usage, podchecker, podselect, psed (link to s2p), pstruct (link
to c2ph), s2p, splain, and xsubpp</seg>
<seg>Several hundred which cannot all be listed here</seg></seglistitem>
</segmentedlist>

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

<varlistentry id="a2p">
<term><command>a2p</command></term>
<listitem>
<para>Translates awk to Perl</para>
<indexterm zone="ch-system-perl a2p"><primary sortas="b-a2p">a2p</primary></indexterm>
</listitem>
</varlistentry>

<varlistentry id="c2ph">
<term><command>c2ph</command></term>
<listitem>
<para>Dumps C structures as generated from <command>cc -g -S</command></para>
<indexterm zone="ch-system-perl c2ph"><primary sortas="b-c2ph">c2ph</primary></indexterm>
</listitem>
</varlistentry>

<varlistentry id="dprofpp">
<term><command>dprofpp</command></term>
<listitem>
<para>Displays Perl profile data</para>
<indexterm zone="ch-system-perl dprofpp"><primary sortas="b-dprofpp">dprofpp</primary></indexterm>
</listitem>
</varlistentry>

<varlistentry id="en2cxs">
<term><command>en2cxs</command></term>
<listitem>
<para>Builds a Perl extension for the Encode module from either
Unicode Character Mappings or Tcl Encoding Files</para>
<indexterm zone="ch-system-perl en2cxs"><primary sortas="b-en2cxs">en2cxs</primary></indexterm>
</listitem>
</varlistentry>

<varlistentry id="find2perl">
<term><command>find2perl</command></term>
<listitem>
<para>Translates <command>find</command> commands to Perl</para>
<indexterm zone="ch-system-perl find2perl"><primary sortas="b-find2perl">find2perl</primary></indexterm>
</listitem>
</varlistentry>

<varlistentry id="h2ph">
<term><command>h2ph</command></term>
<listitem>
<para>Converts <filename class="extension">.h</filename> C header files to
<filename class="extension">.ph</filename> Perl header files</para>
<indexterm zone="ch-system-perl h2ph"><primary sortas="b-h2ph">h2ph</primary></indexterm>
</listitem>
</varlistentry>

<varlistentry id="h2xs">
<term><command>h2xs</command></term>
<listitem>
<para>Converts <filename class="extension">.h</filename> C header files to Perl extensions</para>
<indexterm zone="ch-system-perl h2xs"><primary sortas="b-h2xs">h2xs</primary></indexterm>
</listitem>
</varlistentry>

<varlistentry id="libnetcfg">
<term><command>libnetcfg</command></term>
<listitem>
<para>Can be used to configure the <filename class="libraryfile">libnet</filename></para>
<indexterm zone="ch-system-perl libnetcfg"><primary sortas="b-libnetcfg">libnetcfg</primary></indexterm>
</listitem>
</varlistentry>

<varlistentry id="perl">
<term><command>perl</command></term>
<listitem>
<para>Combines some of the best features of C, <command>sed</command>,
<command>awk</command> and <command>sh</command> into a single swiss-army
language</para>
<indexterm zone="ch-system-perl perl"><primary sortas="b-perl">perl</primary></indexterm>
</listitem>
</varlistentry>

<varlistentry id="perl-version">
<term><command>perl&perl-version;</command></term>
<listitem>
<para>A hard link to <command>perl</command></para>
<indexterm zone="ch-system-perl perl-version"><primary
sortas="b-perl&perl-version;">perl&perl-version;</primary></indexterm>
</listitem>
</varlistentry>


<varlistentry id="perlbug">
<term><command>perlbug</command></term>
<listitem>
<para>Used to generate bug reports about Perl, or the modules that come
with it, and mail them</para>
<indexterm zone="ch-system-perl perlbug"><primary sortas="b-perlbug">perlbug</primary></indexterm>
</listitem>
</varlistentry>

<varlistentry id="perlcc">
<term><command>perlcc</command></term>
<listitem>
<para>Generates executables from Perl programs</para>
<indexterm zone="ch-system-perl perlcc"><primary sortas="b-perlcc">perlcc</primary></indexterm>
</listitem>
</varlistentry>

<varlistentry id="perldoc">
<term><command>perldoc</command></term>
<listitem>
<para>Displays a piece of documentation in pod format that is embedded
in the Perl installation tree or in a Perl script</para>
<indexterm zone="ch-system-perl perldoc"><primary sortas="b-perldoc">perldoc</primary></indexterm>
</listitem>
</varlistentry>

<varlistentry id="perlivp">
<term><command>perlivp</command></term>
<listitem>
<para>The Perl Installation Verification Procedure; it can be used to
verify that Perl and its libraries have been installed
correctly</para>
<indexterm zone="ch-system-perl perlivp"><primary sortas="b-perlivp">perlivp</primary></indexterm>
</listitem>
</varlistentry>

<varlistentry id="piconv">
<term><command>piconv</command></term>
<listitem>
<para>A Perl version of the character encoding converter
<command>iconv</command></para>
<indexterm zone="ch-system-perl piconv"><primary sortas="b-piconv">piconv</primary></indexterm>
</listitem>
</varlistentry>

<varlistentry id="pl2pm">
<term><command>pl2pm</command></term>
<listitem>
<para>A rough tool for converting Perl4 <filename class="extension">.pl</filename>
files to Perl5 <filename class="extension">.pm</filename> modules</para>
<indexterm zone="ch-system-perl pl2pm"><primary sortas="b-pl2pm">pl2pm</primary></indexterm>
</listitem>
</varlistentry>

<varlistentry id="pod2html">
<term><command>pod2html</command></term>
<listitem>
<para>Converts files from pod format to HTML format</para>
<indexterm zone="ch-system-perl pod2html"><primary sortas="b-pod2html">pod2html</primary></indexterm>
</listitem>
</varlistentry>

<varlistentry id="pod2latex">
<term><command>pod2latex</command></term>
<listitem>
<para>Converts files from pod format to LaTeX format</para>
<indexterm zone="ch-system-perl pod2latex"><primary sortas="b-pod2latex">pod2latex</primary></indexterm>
</listitem>
</varlistentry>

<varlistentry id="pod2man">
<term><command>pod2man</command></term>
<listitem>
<para>Converts pod data to formatted *roff input</para>
<indexterm zone="ch-system-perl pod2man"><primary sortas="b-pod2man">pod2man</primary></indexterm>
</listitem>
</varlistentry>

<varlistentry id="pod2text">
<term><command>pod2text</command></term>
<listitem>
<para>Converts pod data to formatted ASCII text</para>
<indexterm zone="ch-system-perl pod2text"><primary sortas="b-pod2text">pod2text</primary></indexterm>
</listitem>
</varlistentry>

<varlistentry id="pod2usage">
<term><command>pod2usage</command></term>
<listitem>
<para>Prints usage messages from embedded pod docs in files</para>
<indexterm zone="ch-system-perl pod2usage"><primary sortas="b-pod2usage">pod2usage</primary></indexterm>
</listitem>
</varlistentry>

<varlistentry id="podchecker">
<term><command>podchecker</command></term>
<listitem>
<para>Checks the syntax of pod format documentation files</para>
<indexterm zone="ch-system-perl podchecker"><primary sortas="b-podchecker">podchecker</primary></indexterm>
</listitem>
</varlistentry>

<varlistentry id="podselect">
<term><command>podselect</command></term>
<listitem>
<para>Displays selected sections of pod documentation</para>
<indexterm zone="ch-system-perl podselect"><primary sortas="b-podselect">podselect</primary></indexterm>
</listitem>
</varlistentry>

<varlistentry id="psed">
<term><command>psed</command></term>
<listitem>
<para>A Perl version of the stream editor <command>sed</command></para>
<indexterm zone="ch-system-perl psed"><primary sortas="b-psed">psed</primary></indexterm>
</listitem>
</varlistentry>

<varlistentry id="pstruct">
<term><command>pstruct</command></term>
<listitem>
<para>Dumps C structures as generated from <command>cc -g -S</command> stabs</para>
<indexterm zone="ch-system-perl pstruct"><primary sortas="b-pstruct">pstruct</primary></indexterm>
</listitem>
</varlistentry>

<varlistentry id="s2p">
<term><command>s2p</command></term>
<listitem>
<para>Translates <command>sed</command> scripts to Perl</para>
<indexterm zone="ch-system-perl s2p"><primary sortas="b-s2p">s2p</primary></indexterm>
</listitem>
</varlistentry>

<varlistentry id="splain">
<term><command>splain</command></term>
<listitem>
<para>Is used to force verbose warning diagnostics in Perl</para>
<indexterm zone="ch-system-perl splain"><primary sortas="b-splain">splain</primary></indexterm>
</listitem>
</varlistentry>

<varlistentry id="xsubpp">
<term><command>xsubpp</command></term>
<listitem>
<para>Converts Perl XS code into C code</para>
<indexterm zone="ch-system-perl xsubpp"><primary sortas="b-xsubpp">xsubpp</primary></indexterm>
</listitem>
</varlistentry>
</variablelist>

</sect2>

</sect1>