source: general/prog/perl-modules.xml@ bd23186f

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<sect1 id="perl-modules" xreflabel="Perl modules">
<sect1info>
<othername>$LastChangedBy$</othername>
<date>$Date$</date>
</sect1info>
<?dbhtml filename="perl-modules.html" ?>
<title><application>Perl</application> modules</title>

<sect2>
<title>Introduction to <application>Perl</application> modules</title>

<para>The <application>Perl</application> module packages add useful objects 
to the <application>Perl</application> language.  Modules utilized by packages 
throughout <acronym>BLFS</acronym> are listed here, along with their 
dependencies. Most references to <application>Perl</application> modules are 
in the form of Module, Module::SubName or Module::Sub::Name, however 
occasionally you'll also see Module, Module-SubName or Module-Sub-Name. Most 
references on this page are in the latter form, as these are the official 
package names.</para>

<sect3><title>The Module::Info module</title>
<para>One module in particular is shown first, as this module's usefulness 
warrants installation, even though it won't be required by many other modules. 
The Module::Info module can tell you if a particular module is included in, 
or has been installed into your <application>Perl</application> installation. 
Additionally, the module can tell you what versions are installed and what 
dependencies are required for them. You can even use Module::Info to gather 
dependencies of uninstalled modules.</para>

<itemizedlist spacing='compact'>
<listitem><para><ulink 
url="http://www.cpan.org/authors/id/M/MB/MBARBON/Module-Info-&Module-Info-version;.tar.gz">Module-Info-&Module-Info-version;</ulink>
</para></listitem>
</itemizedlist>
</sect3>

<sect3><title><application>Perl</application> Module Packages</title>

<itemizedlist><listitem><para><ulink 
url="http://www.cpan.org/authors/id/M/ML/MLEHMANN/Gtk-Perl-&Gtk-Perl-version;.tar.gz">
Gtk-Perl-&Gtk-Perl-version;</ulink></para>

<itemizedlist spacing='compact'><listitem><para><ulink 
url="http://www.cpan.org/authors/id/J/JO/JOSEPHW/XML-Writer-&XML-Writer-version;.tar.gz">
XML-Writer-&XML-Writer-version;</ulink></para>
</listitem>

<listitem><para><ulink 
url="http://www.cpan.org/authors/id/M/MS/MSERGEANT/XML-Parser-&XML-Parser-version;.tar.gz">
XML-Parser-&XML-Parser-version;</ulink></para>

<itemizedlist spacing='compact'><listitem>
<para><xref linkend="expat"/></para>
</listitem></itemizedlist>
</listitem>

<listitem>
<para><xref linkend="GTK"/></para>
</listitem></itemizedlist>
</listitem>

<listitem><para><ulink 
url="http://www.cpan.org/authors/id/D/DM/DMEGG/SGMLSpm-&SGMLSpm-version;.tar.gz">
SGMLSpm-&SGMLSpm-version;</ulink></para>
</listitem>

<listitem><para><ulink 
url="http://www.cpan.org/authors/id/N/NI/NI-S/Tk-&Perl-Tk-version;.tar.gz">
Tk-&Perl-Tk-version;</ulink></para>

<itemizedlist spacing='compact'><listitem>
<para><xref linkend="tk"/> and <xref linkend="libjpeg"/></para>
</listitem></itemizedlist>
</listitem>

<listitem><para><ulink 
url="http://www.cpan.org/authors/id/C/CR/CREIN/Net-DNS-&Net-DNS-version;.tar.gz">
Net-DNS-&Net-DNS-version;</ulink></para>

<itemizedlist spacing='compact'><listitem><para><ulink 
url="http://www.cpan.org/authors/id/G/GA/GAAS/Digest-HMAC-&Digest-HMAC-version;.tar.gz">
Digest-HMAC-&Digest-HMAC-version;</ulink></para>

<itemizedlist spacing='compact'><listitem><para><ulink 
url="http://www.cpan.org/authors/id/G/GA/GAAS/Digest-SHA1-&Digest-SHA1-version;.tar.gz">
Digest-SHA1-&Digest-SHA1-version;</ulink></para>
</listitem></itemizedlist>
</listitem></itemizedlist>
</listitem></itemizedlist>
</sect3>

</sect2>

<sect2>
<title>Installation of <application>Perl</application> modules</title>
                                                                               
<para>Install <application>Perl</application> modules by running the following
commands:</para>
                                                                               
<screen><userinput><command>perl Makefile.PL &amp;&amp;
make &amp;&amp;
make test &amp;&amp;
make install</command></userinput></screen>
                                                                               
<para>The modules listed below require modifications to the instructions in 
order to install successfully.</para>
                                                                               
<sect3><title>Gtk-Perl-&Gtk-Perl-version;:</title>
<screen><userinput><command>perl Makefile.PL --without-guessing &amp;&amp;
make &amp;&amp;
make test &amp;&amp;
make install</command></userinput></screen>
</sect3>
                                                                               
<sect3><title>SGMLSpm-&SGMLSpm-version;</title>
                                                                               
<para>If your system's <application>Perl</application> version is different 
than &LFS-Perl-version;, you'll need to modify the <command>sed</command> 
command below to reflect the version you have installed.</para>

<screen><userinput><command>sed -i -e "s@/usr/local/bin@/usr/bin@" \
       -e "s@/usr/local/lib/perl5@/usr/lib/perl5/site_perl/&LFS-Perl-version;@" \
       -e "s@/usr/local/lib/www/docs@/usr/share/doc/perl5@" \
    Makefile &amp;&amp;
make install &amp;&amp;
install -d -m 755 /usr/share/doc/perl5 &amp;&amp;
make install_html &amp;&amp;
rm -f /usr/share/doc/perl5/SGMLSpm/sample.pl &amp;&amp;
install -m 644 DOC/sample.pl /usr/share/doc/perl5/SGMLSpm</command></userinput></screen>
</sect3>
                                                                               
</sect2>

<sect2><title>(Alternate) Auto installation of <application>Perl</application>
modules.</title>

<para>There is an alternate way of installing the modules using 
<application>Perl</application>'s built-in <command>install</command> command. 
The command automatically downloads the source from the <acronym>CPAN</acronym> 
archive, extracts it, runs the commands mentioned above, and removes the build 
tree. You may still need to install dependent library packages before running 
the automated installation method.</para>
                                                                               
<para>The first time you run this command, you'll be prompted to enter some 
information regarding download locations and methods. This information is 
retained in files located in <filename class='directory'>~/.cpan</filename>. 
Start the perl shell with the following command:</para>
                                                                               
<screen><userinput><command>perl -MCPAN -e shell</command></userinput></screen>                                                                               
<para>Each module may now be installed from this shell with the command:</para>                                                                               
<screen><userinput><command>install <replaceable>[ModuleName]</replaceable></command></userinput></screen>
                                                                               
<para>For additional commands and help, type <command>help</command>.</para>
                                                                               
</sect2>

</sect1>