source: general/genutils/xscreensaver.xml@ cacdba3a

<?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;

  <!ENTITY xscreensaver-download-http "http://www.jwz.org/xscreensaver/xscreensaver-&xscreensaver-version;.tar.gz">
  <!ENTITY xscreensaver-download-ftp  " ">
  <!ENTITY xscreensaver-md5sum        "42582268cf7db0a12836a3240c83726e">
  <!ENTITY xscreensaver-size          "8.4 MB">
  <!ENTITY xscreensaver-buildsize     "165 MB">
  <!ENTITY xscreensaver-time          "0.8 SBU">
]>

<sect1 id="xscreensaver" xreflabel="XScreenSaver-&xscreensaver-version;">
  <?dbhtml filename="xscreensaver.html"?>

  <sect1info>
    <othername>$LastChangedBy$</othername>
    <date>$Date$</date>
  </sect1info>

  <title>XScreenSaver-&xscreensaver-version;</title>

  <indexterm zone="xscreensaver">
    <primary sortas="a-XScreenSaver">XScreenSaver</primary>
  </indexterm>

  <sect2 role="package">
    <title>Introduction to XScreenSaver</title>

    <para>
      The <application>XScreenSaver</application> is a modular screen saver
      and locker for the X Window System. It is highly customizable and
      allows the use of any program that can draw on the root window as a
      display mode. The purpose of <application>XScreenSaver</application> is
      to display pretty pictures on your screen when it is not in use, in
      keeping with the philosophy that unattended monitors should always be
      doing something interesting, just like they do in the movies. However,
      <application>XScreenSaver</application> can also be used as a screen
      locker, to prevent others from using your terminal while you are away.
    </para>

    &lfs75_checked;

    <bridgehead renderas="sect3">Package Information</bridgehead>
    <itemizedlist spacing="compact">
      <listitem>
        <para>
          Download (HTTP): <ulink url="&xscreensaver-download-http;"/>
        </para>
      </listitem>
      <listitem>
        <para>
          Download (FTP): <ulink url="&xscreensaver-download-ftp;"/>
        </para>
      </listitem>
      <listitem>
        <para>
          Download MD5 sum: &xscreensaver-md5sum;
        </para>
      </listitem>
      <listitem>
        <para>
          Download size: &xscreensaver-size;
        </para>
      </listitem>
      <listitem>
        <para>
          Estimated disk space required: &xscreensaver-buildsize;
        </para>
      </listitem>
      <listitem>
        <para>
          Estimated build time: &xscreensaver-time;
        </para>
      </listitem>
    </itemizedlist>

    <bridgehead renderas="sect3">XScreenSaver Dependencies</bridgehead>

    <bridgehead renderas="sect4">Required</bridgehead>
    <para role="required">
      <xref linkend="libglade"/> and
      <xref linkend="xorg7-app"/>
    </para>

    <bridgehead renderas="sect4">Recommended</bridgehead>
    <para role="recommended">
      <xref linkend="glu"/>
    </para>

    <bridgehead renderas="sect4">Optional</bridgehead>
    <para role="optional">
      <ulink url="&gnome-download-http;/gdm/">GDM</ulink>,
      <ulink url="http://linas.org/gle/">GLE</ulink> and
      <xref linkend="linux-pam"/>
    </para>

    <para condition="html" role="usernotes">User Notes:
      <ulink url="&blfs-wiki;/xscreensaver"/>
    </para>
  </sect2>

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

    <para>
      Due to a problem in the code, <application>XScreenSaver</application>
      fails to install, because cannot find a desktop file used for configuring
      the application, in a DE menu. Following command creates the file:
    </para>

<screen><userinput>cat &gt; driver/screensaver-properties.desktop  &lt;&lt; "EOF"
[Desktop Entry]
Exec=xscreensaver-demo
Icon=xscreensaver
Terminal=false
Name=Screensaver
Name[pt_BR]=Protetor de tela
Comment=Change screensaver properties
Comment[pt_BR]=Modificar as propriedades do protetor de tela
Type=Application
Categories=Settings;DesktopSettings;Security;X-XFCE;
EOF</userinput></screen>

    <para>
      Above, we chose to include pt_BR string, and respective "Name" and
      "Comment" values, as just an example. Those lines might either be
      deleted or replaced to fit the user's locale string and values.
    </para>

    <para>
      Install <application>XScreenSaver</application> by running the following
      commands:
    </para>

<screen><userinput>LIBS=-lpthread ./configure --prefix=/usr &amp;&amp;
sed -i 's/-std=c89//' hacks/Makefile     &amp;&amp;
make</userinput></screen>

    <para>
      This package does not come with a test suite.
    </para>

    <para>
      Now, as the <systemitem class="username">root</systemitem> user:
    </para>

<screen role="root"><userinput>make install</userinput></screen>

  </sect2>

  <sect2 role="commands">
    <title>Command Explanations</title>

    <para>
      <command>LIBS=-lpthread ...</command>: This switch helps
      <command>make</command> to find the library.
    </para>

    <para>
      <command>sed -i ...</command>: This switch allows the correct
      interpretation of some parts of the code as comments.
    </para>

    <para>
      <option>--with-setuid-hacks</option>: This switch allows some demos
      to be installed setuid <systemitem class="username">root</systemitem>
      which is needed in order to ping other hosts.
    </para>

    <para><option>--libexecdir=/usr/lib</option>: This option
    will put the individual screensaver programs into
    <filename class="directory">/usr/lib/xscreensaver</filename> instead of
    <filename class="directory">/usr/libexec/xscreensaver</filename> in
    accordance with the old version of the FHS used before LFS-7.5.</para>

  </sect2>

  <sect2 role="configuration">
    <title>Configuring XScreenSaver</title>

    <sect3 id="xscreensaver-config">
      <title>Config Files</title>

      <para>
        <filename>/etc/X11/app-defaults/XScreenSaver</filename> and
        <filename>~/.xscreensaver</filename>
      </para>

      <indexterm zone="xscreensaver xscreensaver-config">
        <primary sortas="e-etc-X11-app-defaults-XScreenSaver">/etc/X11/app-defaults/XScreenSaver</primary>
      </indexterm>
      <indexterm zone="xscreensaver xscreensaver-config">
        <primary sortas="e-AA.xscreensaver">~/.xscreensaver</primary>
      </indexterm>

    </sect3>

    <sect3>
      <title>Linux PAM Configuration</title>

      <para>
        If you have built <application>XScreenSaver</application> with
        <application>Linux PAM</application> support, you need to create
        <application>PAM</application> configuration file to get
        <application>XScreenSaver</application> to work correctly with BLFS.
      </para>

      <para>
        Issue the following commands as the <systemitem class="username">root</systemitem>
        user to create the configuration file for <application>Linux PAM</application>:
      </para>

<screen role="root"><userinput>cat &gt; /etc/pam.d/xscreensaver &lt;&lt; "EOF"
<literal># Begin /etc/pam.d/xscreensaver

auth    include system-auth
account include system-account

# End /etc/pam.d/xscreensaver</literal>
EOF</userinput></screen>

    </sect3>

  </sect2>

  <sect2 role="content">
    <title>Contents</title>

    <segmentedlist>
      <segtitle>Installed Programs</segtitle>
      <segtitle>Installed Libraries</segtitle>
      <segtitle>Installed Directories</segtitle>

      <seglistitem>
        <seg>
          xscreensaver, xscreensaver-command, xscreensaver-demo, xscreensaver-getimage,
          xscreensaver-getimage-file, xscreensaver-getimage-video,
          xscreensaver-gl-helper and xscreensaver-text
        </seg>
        <seg>
          None
        </seg>
        <seg>
          /usr/libexec/xscreensaver and
          /usr/share/xscreensaver
        </seg>
      </seglistitem>
    </segmentedlist>

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

      <varlistentry id="xscreensaver-prog">
        <term><command>xscreensaver</command></term>
        <listitem>
          <para>
            is a screen saver and locker daemon.
          </para>
          <indexterm zone="xscreensaver xscreensaver-prog">
            <primary sortas="b-xscreensaver">xscreensaver</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="xscreensaver-command">
        <term><command>xscreensaver-command</command></term>
        <listitem>
          <para>
            controls a running <command>xscreensaver</command>
            process by sending it client messages.
          </para>
          <indexterm zone="xscreensaver xscreensaver-command">
            <primary sortas="b-xscreensaver-command">xscreensaver-command</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="xscreensaver-demo">
        <term><command>xscreensaver-demo</command></term>
        <listitem>
          <para>
            is a graphical front-end for setting the parameters used
            by the background <command>xscreensaver</command> daemon.
          </para>
          <indexterm zone="xscreensaver xscreensaver-demo">
            <primary sortas="b-xscreensaver-demo">xscreensaver-demo</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="xscreensaver-getimage">
        <term><command>xscreensaver-getimage</command></term>
        <listitem>
          <para>
            is a helper program for the <command>xscreensaver</command>
            modules that manipulate images.
          </para>
          <indexterm zone="xscreensaver xscreensaver-getimage">
            <primary sortas="b-xscreensaver-getimaage">xscreensaver-getimage</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="xscreensaver-getimage-file">
        <term><command>xscreensaver-getimage-file</command></term>
        <listitem>
          <para>
            is a helper program for the <command>xscreensaver</command>
            modules that manipulate images.
          </para>
          <indexterm zone="xscreensaver xscreensaver-getimage-file">
            <primary sortas="b-xscreensaver-getimaage-file">xscreensaver-getimage-file</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="xscreensaver-getimage-video">
        <term><command>xscreensaver-getimage-video</command></term>
        <listitem>
          <para>
            is a helper program for the <command>xscreensaver</command>
            modules that manipulate images.
          </para>
          <indexterm zone="xscreensaver xscreensaver-getimage-video">
            <primary sortas="b-xscreensaver-getimaage-video">xscreensaver-getimage-video</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="xscreensaver-gl-helper">
        <term><command>xscreensaver-gl-helper</command></term>
        <listitem>
          <para>
            is a helper program for the <command>xscreensaver</command>
            OpenGL modules.
          </para>
          <indexterm zone="xscreensaver xscreensaver-gl-helper">
            <primary sortas="b-xscreensaver-gl-helper">xscreensaver-gl-helper</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="xscreensaver-text">
        <term><command>xscreensaver-text</command></term>
        <listitem>
          <para>
            prints some text to stdout, for use by screen savers.
          </para>
          <indexterm zone="xscreensaver xscreensaver-text">
            <primary sortas="b-xscreensaver-text">xscreensaver-text</primary>
          </indexterm>
        </listitem>
      </varlistentry>

    </variablelist>

  </sect2>

</sect1>