source: x/lib/qt4.xml@ c24e4de

<?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 qt4-download-http
           "http://download.qt-project.org/official_releases/qt/4.8/&qt4-version;/qt-everywhere-opensource-src-&qt4-version;.tar.gz">
  <!ENTITY qt4-download-ftp  " ">
  <!ENTITY qt4-md5sum        "2edbe4d6c2eff33ef91732602f3518eb">
  <!ENTITY qt4-size          "231 MB">
  <!ENTITY qt4-buildsize     "2.0 GB">
  <!ENTITY qt4-time          "37 SBU">
]>

<sect1 id="qt4" xreflabel="Qt-&qt4-version;">
  <?dbhtml filename="qt4.html" ?>

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

  <title>Qt-&qt4-version;</title>

  <indexterm zone="qt4">
    <primary sortas="a-Qt">Qt</primary>
  </indexterm>

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

    <para>
      <application>Qt</application> is a cross-platform application
      framework that is widely used for developing application software
      with a graphical user interface (GUI) (in which cases Qt is classified
      as a widget toolkit), and also used for developing non-GUI programs such
      as command-line tools and consoles for servers. One of the major users
      of <application>Qt</application> is <application>KDE</application>.
    </para>

    &lfs77_checked;

    <bridgehead renderas="sect3">Package Information</bridgehead>
    <itemizedlist spacing="compact">
      <listitem>
        <para>
          Download (HTTP): <ulink url="&qt4-download-http;"/>
        </para>
      </listitem>
      <listitem>
        <para>
          Download (FTP): <ulink url="&qt4-download-ftp;"/>
        </para>
      </listitem>
      <listitem>
        <para>
          Download MD5 sum: &qt4-md5sum;
        </para>
      </listitem>
      <listitem>
        <para>
          Download size: &qt4-size;
        </para>
      </listitem>
      <listitem>
        <para>
          Estimated disk space required: &qt4-buildsize;
        </para>
      </listitem>
      <listitem>
        <para>
          Estimated build time: &qt4-time;
        </para>
      </listitem>
    </itemizedlist>

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

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

    <bridgehead renderas="sect4">Recommended</bridgehead>
    <para role="recommended">
      <xref linkend="alsa-lib"/>,
      <xref linkend="mesalib"/>,
      <xref linkend="cacerts"/>,
      <xref linkend="dbus"/>,
      <xref linkend="glib2"/>,
      <xref linkend="icu"/> (unicode support),
      <xref linkend="libjpeg"/>,
      <xref linkend="libmng"/>,
      <xref linkend="libpng"/>,
      <xref linkend="libtiff"/>,
      <xref linkend="openssl"/>, and
      <xref linkend="sqlite"/>
    </para>

    <bridgehead renderas="sect4">Optional</bridgehead>
    <para role="optional">
      <xref linkend="cups"/>,
      <xref linkend="gtk2"/> (GTK+ 2 theme support),
      <xref linkend="gst-plugins-base"/> (For QtWebKit HTML5 Video),
      <xref linkend="mariadb"/> or <ulink url="http://www.mysql.com/">MySQL</ulink>,
      <xref linkend="postgresql"/>,
      <xref linkend="pulseaudio"/>, and
      <xref linkend="unixodbc"/>
    </para>

    <para condition="html" role="usernotes">User Notes:
      <ulink url="&blfs-wiki;/qt4"/>
    </para>
  </sect2>

  <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="../../xincludes/qt-alternatives.xml"/>

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

    <caution>
      <para>
        If you did not install some of the recommended dependencies, examine
        <command>./configure --help</command> output to check how to disable
        them or use internal versions bundled in the source tarball.
      </para>
    </caution>

    <warning>
      <para>
        If <application>Qt4</application> is being reinstalled into the
        same directory as an existing instance, run the commands done by
        <systemitem class="username">root</systemitem>, such as
        <command>make install</command>, from a console or non-Qt4 based
        window manager. It overwrites <application>Qt4</application>
        libraries that should not be in use during the install process.
      </para>
    </warning>

    <note>
      <para>
        The build time and space required for the full
        <application>Qt</application> is quite long. The instructions below
        do not build the tutorials and examples. Removing the
        <parameter>-nomake</parameter> lines will create a complete build.
      </para>
    </note>

    <para>
      Fix DoS vulnerability in the GIF image handler:
    </para>

<screen><userinput>sed -i -e '631a if (image->isNull()) { state = Error; return -1; }' \
    src/gui/image/qgifhandler.cpp</userinput></screen>

<!-- ==== Method 1 ====== -->
    <bridgehead renderas="sect3">Method 1: Installing in /usr</bridgehead>

    <para>
      Install <application>Qt4</application> into the <filename
      class='directory'>/usr</filename> hierarchy by running the following
      commands:
    </para>

<screen><userinput>export QT4LINK=/usr

sed -i -e "/#if/d" -e "/#error/d" -e "/#endif/d" \
     config.tests/unix/libmng/libmng.cpp &amp;&amp;

sed -i '/CONFIG -/ a\isEmpty(OUTPUT_DIR): OUTPUT_DIR = ../..' \
     src/3rdparty/webkit/Source/WebKit2/DerivedSources.pro &amp;&amp;

./configure -prefix         /usr                 \
            -bindir         /usr/bin             \
            -plugindir      /usr/lib/qt4/plugins \
            -importdir      /usr/lib/qt4/imports \
            -headerdir      /usr/include/qt4     \
            -datadir        /usr/share/qt4       \
            -sysconfdir     /etc/xdg             \
            -docdir         /usr/share/doc/qt4   \
            -demosdir       /usr/share/doc/qt4/demos    \
            -examplesdir    /usr/share/doc/qt4/examples \
            -translationdir /usr/share/qt4/translations \
            -confirm-license   \
            -opensource        \
            -release           \
            -dbus-linked       \
            -openssl-linked    \
            -system-sqlite     \
            -no-phonon         \
            -no-phonon-backend \
            -no-nis            \
            -no-openvg         \
            -nomake demos      \
            -nomake examples   \
            -optimized-qmake   &amp;&amp;

make</userinput></screen>

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

    <para>
      Remove references to the build directory from the
      <filename class="extension">.pc</filename> files by running
      the following command:
    </para>

<screen><userinput>find . -name "*.pc" -exec perl -pi -e "s, -L$PWD/?\S+,,g" {} \;</userinput></screen>

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

<screen role="root"><userinput>make install &amp;&amp;
rm -rf /usr/tests</userinput></screen>

    <para>
      Remove references to the build directory from installed files by
      running the following command as the
      <systemitem class="username">root</systemitem> user:
    </para>

<screen role="root"><userinput>for file in 3Support CLucene Core DBus Declarative DesignerComponents \
            Designer Gui Help Multimedia Network OpenGL Script \
            ScriptTools Sql Svg Test UiTools WebKit XmlPatterns Xml phonon; do

     [ -e /usr/lib/libQt${file}.prl ] &amp;&amp;
     sed -r '/^QMAKE_PRL_BUILD_DIR/d;s/(QMAKE_PRL_LIBS =).*/\1/' \
         -i /usr/lib/libQt${file}.prl
done
unset file</userinput></screen>

<!-- ==== Method 2 ====== -->
    <bridgehead renderas="sect3">Method 2: Installing in /opt/qt-&qt4-version;</bridgehead>

    <para>
      This section provides for installing Qt4 almost all of the files in the
      <filename class="directory">/opt</filename> directory.
    </para>

<screen><userinput>export QT4DIR=/opt/qt-&qt4-version; &amp;&amp;
export QT4LINK=/opt/qt4 &amp;&amp;

sed -i -e "/#if/d" -e "/#error/d" -e "/#endif/d" \
     config.tests/unix/libmng/libmng.cpp &amp;&amp;

sed -i '/CONFIG -/ a\isEmpty(OUTPUT_DIR): OUTPUT_DIR = ../..' \
     src/3rdparty/webkit/Source/WebKit2/DerivedSources.pro &amp;&amp;

./configure -prefix     $QT4DIR  \
            -sysconfdir /etc/xdg \
            -confirm-license     \
            -opensource          \
            -release             \
            -dbus-linked         \
            -openssl-linked      \
            -system-sqlite       \
            -plugin-sql-sqlite   \
            -no-phonon           \
            -no-phonon-backend   \
            -no-nis              \
            -no-openvg           \
            -nomake demos        \
            -nomake examples     \
            -optimized-qmake     &amp;&amp;

make</userinput></screen>

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

<screen role="root"><userinput>make install
ln -svfn $QT4DIR /opt/qt4</userinput></screen>

    <para>
      Remove references to the build directory from installed files by
      running the following command as the
      <systemitem class="username">root</systemitem> user:
    </para>

<screen role="root"><userinput>for file in `basename -a -s .prl $QT4DIR/lib/lib*.prl`; do
       sed -r -e '/^QMAKE_PRL_BUILD_DIR/d'    \
              -e 's/(QMAKE_PRL_LIBS =).*/\1/' \
              -i $QT4DIR/lib/${file}.prl

   perl -pi -e "s, -L$PWD/?\S+,,g" $QT4DIR/lib/pkgconfig/${file##lib}.pc
done

unset file</userinput></screen>

<!-- ==== Common  ====== -->
    <bridgehead renderas="sect3">Continuing for Both Methods</bridgehead>

      <para>
        For all methods, install images and create the menu entries 
        for installed applications.  Be sure that the <envar>QT4LINK</envar>
        variable is defined in root's environment and 
        as the <systemitem class="username">root</systemitem> user:
      </para>

<screen role="root"><userinput>install -v -Dm644 src/gui/dialogs/images/qtlogo-64.png \
                  /usr/share/pixmaps/qt4logo.png       &amp;&amp;

install -v -Dm644 tools/assistant/tools/assistant/images/assistant-128.png \
                  /usr/share/pixmaps/assistant-qt4.png &amp;&amp;

install -v -Dm644 tools/designer/src/designer/images/designer.png \
                  /usr/share/pixmaps/designer-qt4.png  &amp;&amp;

install -v -Dm644 tools/linguist/linguist/images/icons/linguist-128-32.png \
                  /usr/share/pixmaps/linguist-qt4.png  &amp;&amp;

install -v -Dm644 tools/qdbus/qdbusviewer/images/qdbusviewer-128.png \
                  /usr/share/pixmaps/qdbusviewer-qt4.png &amp;&amp;

install -dm755 /usr/share/applications &amp;&amp;

cat &gt; /usr/share/applications/assistant-qt4.desktop &lt;&lt; EOF
<literal>[Desktop Entry]
Name=Qt4 Assistant 
Comment=Shows Qt4 documentation and examples
Exec=$QT4LINK/bin/assistant
Icon=assistant-qt4.png
Terminal=false
Encoding=UTF-8
Type=Application
Categories=Qt;Development;Documentation;</literal>
EOF

cat &gt; /usr/share/applications/designer-qt4.desktop &lt;&lt; EOF
<literal>[Desktop Entry]
Name=Qt4 Designer
Comment=Design GUIs for Qt4 applications
Exec=$QT4LINK/bin/designer
Icon=designer-qt4.png
MimeType=application/x-designer;
Terminal=false
Encoding=UTF-8
Type=Application
Categories=Qt;Development;</literal>
EOF

cat &gt; /usr/share/applications/linguist-qt4.desktop &lt;&lt; EOF
<literal>[Desktop Entry]
Name=Qt4 Linguist 
Comment=Add translations to Qt4 applications
Exec=$QT4LINK/bin/linguist
Icon=linguist-qt4.png
MimeType=text/vnd.trolltech.linguist;application/x-linguist;
Terminal=false
Encoding=UTF-8
Type=Application
Categories=Qt;Development;</literal>
EOF

cat &gt; /usr/share/applications/qdbusviewer-qt4.desktop &lt;&lt; EOF
<literal>[Desktop Entry]
Name=Qt4 QDbusViewer 
GenericName=D-Bus Debugger
Comment=Debug D-Bus applications
Exec=$QT4LINK/bin/qdbusviewer
Icon=qdbusviewer-qt4.png
Terminal=false
Encoding=UTF-8
Type=Application
Categories=Qt;Development;Debugger;</literal>
EOF

cat &gt; /usr/share/applications/qtconfig-qt4.desktop &lt;&lt; EOF
<literal>[Desktop Entry]
Name=Qt4 Config 
Comment=Configure Qt4 behavior, styles, fonts
Exec=$QT4LINK/bin/qtconfig
Icon=qt4logo.png
Terminal=false
Encoding=UTF-8
Type=Application
Categories=Qt;Settings;</literal>
EOF</userinput></screen>

  </sect2>

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

    <para>
      <command>sed -i ...</command>: First command fixes detection of
      <application>libmng</application> 2.0 and second one prevents configure
      script from writing to the root directory if building as privileged user.
    </para>

    <para>
      <parameter>-confirm-license</parameter>: Accept license
      without prompting user during configuration.
    </para>

    <para>
      <parameter>-opensource</parameter>: Install the opensource
      version of <application>Qt</application>.
    </para>

    <para>
      <parameter>-release</parameter>: This switch disables
      building with debugging symbols.
    </para>

    <para>
      <parameter>-nomake examples -nomake demos</parameter>:
      These switches disable building programs that are only of
      interest to a developer using <application>Qt</application>.
    </para>

    <para>
      <parameter>-system-sqlite</parameter>: This switch enables use
      the system version of <application>SQLite</application>.
    </para>

    <para>
      <parameter>-no-nis</parameter>: This switch disables support
      for Network Information Service (NIS) which has been
      deprecated in recent versions of <application>Glibc</application>.
    </para>

    <para>
      <parameter>-no-phonon -no-phonon-backend</parameter>: These
      switches disable building of the bundled
      <application>Phonon</application> library. Better version
      is provided by <xref linkend="phonon"/> package.
    </para>

    <para>
      <parameter>-dbus-linked -openssl-linked</parameter>: These
      switches enable explicit linking of the
      <application>D-Bus</application> and
      <application>OpenSSL</application> libraries into
      <application>Qt</application> libraries instead of
      <command>dlopen()</command>-ing them.
    </para>

    <para>
      <parameter>-no-openvg</parameter>: This switch disables
      <application>OpenVG</application> support in
      <application>Qt</application>.
    </para>

    <para>
      <parameter>-optimized-qmake</parameter>: This switch enables
      building of the optimized <command>qmake</command> program.
    </para>

    <para>
      <option>-no-dbus</option>: Use this switch if you don't have
      <application>D-Bus</application> installed.
    </para>

  </sect2>

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

    <sect3 id="qt4-config">
      <title>Configuration Information</title>

      <para>
        If you installed <application>Qt</application> in /usr,
        create an environment variable needed by certain packages.
        As the <systemitem class="username">root</systemitem> user:
      </para>

<screen role="root"><userinput>cat &gt; /etc/profile.d/qt4.sh &lt;&lt; EOF
<literal># Begin /etc/profile.d/qt4.sh

QT4DIR=/usr
export QT4DIR

# End /etc/profile.d/qt4.sh</literal>
EOF</userinput></screen>

   <para>
      If you installed <application>Qt</application> in a location other
      than /usr, you need to update the following configuration files so
      that <application>Qt</application> is correctly found by other packages
      and system processes.</para>
   
      <para>As the <systemitem class="username">root</systemitem> user, update
      the <filename>/etc/ld.so.conf</filename> file and the dynamic linker's
      run-time cache file:
   </para>
   
<screen role="root"><userinput>cat &gt;&gt; /etc/ld.so.conf &lt;&lt; EOF
<literal># Begin Qt addition
   
/opt/qt4/lib
   
# End Qt addition</literal>
EOF

ldconfig</userinput></screen>
   
   <indexterm zone="qt4 qt4-config">
      <primary sortas="e-etc-ld.so.conf">/etc/ld.so.conf</primary>
   </indexterm>
   
   <para>
      As the <systemitem class="username">root</systemitem> user, create
      the <filename>/etc/profile.d/qt4.sh</filename> file:
   </para>
   
<screen role="root"><userinput>cat &gt; /etc/profile.d/qt4.sh &lt;&lt; EOF
<literal># Begin /etc/profile.d/qt4.sh
   
QT4DIR=/opt/qt4
   
pathappend /opt/qt4/bin           PATH
pathappend /opt/qt4/lib/pkgconfig PKG_CONFIG_PATH
   
export QT4DIR
   
# End /etc/profile.d/qt4.sh</literal>
EOF</userinput></screen>


    </sect3>
   
    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" 
                href="../../xincludes/setqt.xml"/>
  </sect2>

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

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

      <seglistitem>
        <seg>
          assistant, designer, lconvert, linguist,
          lrelease, lupdate, moc, pixeltool,
          qcollectiongenerator, qdbuscpp2xml, qdbus,
          qdbusviewer, qdbusxml2cpp, qdoc3, qhelpconverter,
          qhelpgenerator, qmake, qmlplugindump, qmlviewer,
          qt3to4, qtconfig, qttracereplay, rcc, uic3,
          uic, xmlpatterns, and xmlpatternsvalidator
        </seg>
        <seg>
          libQtUiTools.a, libQt3Support.so, libQtCLucene.so, libQtCore.so,
          libQtDBus.so, libQtDeclarative.so, libQtDesignerComponents.so,
          libQtDesigner.so, libQtGui.so, libQtHelp.so, libQtMultimedia.so,
          libQtNetwork.so, libQtOpenGL.so, libQtScript.so, libQtScriptTools.so,
          libQtSql.so, libQtSvg.so, libQtTest.so, libQtWebKit.so,
          libQtXmlPatterns.so, and libQtXml.so, and several plugins under
          /opt/qt4/imports and /opt/qt4/plugins
        </seg>
        <seg>
          /usr/include/qt4,
          /usr/lib/qt4,
          /usr/share/doc/qt4, and
          /usr/share/qt4 
          OR 
          /opt/qt4 and 
          /opt/qt-&qt4-version;
        </seg>
      </seglistitem>
    </segmentedlist>

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

      <varlistentry id="assistant-qt4">
        <term><command>assistant</command></term>
        <listitem>
          <para>
            is a tool for presenting on-line documentation.
          </para>
          <indexterm zone="qt4 assistant-qt4">
            <primary sortas="b-assistant-qt4">assistant</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="designer-qt4">
        <term><command>designer</command></term>
        <listitem>
          <para>
            is a full-fledged GUI builder. It includes
            powerful features such as preview mode, automatic widget
            layout, support for custom widgets, and an advanced
            property editor.
          </para>
          <indexterm zone="qt4 designer-qt4">
            <primary sortas="b-designer-qt4">designer</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="linguist-qt4">
        <term><command>linguist</command></term>
        <listitem>
          <para>
            provides support for translating applications into
            local languages.
          </para>
          <indexterm zone="qt4 linguist-qt4">
            <primary sortas="b-linguist-qt4">linguist</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="lrelease-qt4">
        <term><command>lrelease</command></term>
        <listitem>
          <para>
            is a simple command line tool. It reads a Qt project
            file and produces message files used by the application.
          </para>
          <indexterm zone="qt4 lrelease-qt4">
            <primary sortas="b-lrelease-qt4">lrelease</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="lupdate-qt4">
        <term><command>lupdate</command></term>
        <listitem>
          <para>
            reads a Qt project file, finds the translatable
            strings in the specified source, header and Qt Designer
            interface files, and produces or updates the translation
            files listed in the project file.
          </para>
          <indexterm zone="qt4 lupdate-qt4">
            <primary sortas="b-lupdate-qt4">lupdate</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="moc-qt4">
        <term><command>moc</command></term>
        <listitem>
          <para>
            generates Qt meta object support code.
          </para>
          <indexterm zone="qt4 moc-qt4">
            <primary sortas="b-moc-qt4">moc</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="pixeltool-qt4">
        <term><command>pixeltool</command></term>
        <listitem>
          <para>
            is a desktop magnifier and as you move your mouse around
            the screen it will show the magnified contents in its window.
          </para>
          <indexterm zone="qt4 pixeltool-qt4">
            <primary sortas="b-pixeltool-qt4">pixeltool</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="qmake-qt4">
        <term><command>qmake</command></term>
        <listitem>
          <para>
            uses information stored in project files to
            determine what should go in the makefiles it
            generates.
          </para>
          <indexterm zone="qt4 qmake-qt4">
            <primary sortas="b-qmake-qt4">qmake</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="qt3to4-qt4">
        <term><command>qt3to4</command></term>
        <listitem>
          <para>
            qt3to4 is a tool to help update Qt3 code to Qt4.
          </para>
          <indexterm zone="qt4 qt3to4-qt4">
            <primary sortas="b-qt3to4-qt4">qt3to4</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="qtconfig-qt4">
        <term><command>qtconfig</command></term>
        <listitem>
          <para>
            is used to customize the appearance of Qt applications.
          </para>
          <indexterm zone="qt4 qtconfig-qt4">
            <primary sortas="b-qtconfig-qt4">qtconfig</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="rcc-qt4">
        <term><command>rcc</command></term>
        <listitem>
          <para>
            is a resource compiler used in conjunction with designer.
          </para>
          <indexterm zone="qt4 rcc-qt4">
            <primary sortas="b-rcc-qt4">rcc</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="uic-qt4">
        <term><command>uic</command></term>
        <listitem>
          <para>
            is a Qt user interface compiler.
          </para>
          <indexterm zone="qt4 uic-qt4">
            <primary sortas="b-uic-qt4">uic</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="uic3-qt4">
        <term><command>uic3</command></term>
        <listitem>
          <para>
            is a tool to generate Qt4 code out of
            user interface files generated by the Qt3
            version of designer.
          </para>
          <indexterm zone="qt4 uic3-qt4">
            <primary sortas="b-uic3-qt4">uic3</primary>
          </indexterm>
        </listitem>
      </varlistentry>

    </variablelist>

  </sect2>

</sect1>