mirror of
https://github.com/Zeckmathederg/glfs.git
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8b82ddf961
git-svn-id: svn://svn.linuxfromscratch.org/BLFS/trunk/BOOK@3765 af4574ff-66df-0310-9fd7-8a98e5e911e0
465 lines
17 KiB
XML
465 lines
17 KiB
XML
<?xml version="1.0" encoding="ISO-8859-1"?>
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<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN"
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"http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd" [
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<!ENTITY % general-entities SYSTEM "../../general.ent">
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%general-entities;
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<!ENTITY qt-download-http "http://sunsite.rediris.es/mirror/Qt/source/qt-x11-free-&qt-version;.tar.bz2">
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<!ENTITY qt-download-ftp "ftp://ftp.trolltech.com/qt/source/qt-x11-free-&qt-version;.tar.bz2">
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<!ENTITY qt-md5sum "027f4e82fbe592b39d2f160bfb3a73af">
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<!ENTITY qt-size "13.8 MB">
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<!ENTITY qt-buildsize "250 MB">
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<!ENTITY qt-time "15.5 SBU (full), 10.9 SBU (sub-tools)">
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]>
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<sect1 id="qt" xreflabel="Qt-&qt-version;">
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<sect1info>
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<othername>$LastChangedBy$</othername>
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<date>$Date$</date>
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</sect1info>
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<?dbhtml filename="qt.html" ?>
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<title>Qt-&qt-version;</title>
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<indexterm zone="qt">
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<primary sortas="a-qt">Qt</primary>
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</indexterm>
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<sect2>
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<title>Introduction to <application>Qt</application></title>
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<para>The <application>Qt</application> package contains a
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<application>C++</application> <acronym>GUI</acronym> library. This is useful
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for creating graphical applications or executing graphical applications that
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are dynamically linked to the <application>Qt</application> library. One of the
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major users of <application>Qt</application> is <application>KDE</application>.
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</para>
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<sect3><title>Package information</title>
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<itemizedlist spacing='compact'>
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<listitem><para>Download (HTTP): <ulink url="&qt-download-http;"/></para></listitem>
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<listitem><para>Download (FTP): <ulink url="&qt-download-ftp;"/></para></listitem>
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<listitem><para>Download MD5 Sum: &qt-md5sum;</para></listitem>
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<listitem><para>Download size: &qt-size;</para></listitem>
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<listitem><para>Estimated disk space required: &qt-buildsize;</para></listitem>
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<listitem><para>Estimated build time: &qt-time;</para></listitem></itemizedlist>
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</sect3>
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<sect3>
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<title><application>Qt</application> dependencies</title>
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<sect4>
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<title>Required</title>
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<para><xref linkend="x-installing"/></para>
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</sect4>
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<sect4>
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<title>Recommended</title>
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<para><xref linkend="libjpeg"/> and <xref linkend="libmng"/></para>
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</sect4>
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<sect4>
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<title>Optional</title>
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<para><xref linkend="nas"/>, <xref linkend="cups"/>, <xref linkend="mysql"/>,
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<xref linkend="postgresql"/>, <ulink url="http://sqlite.org/">SQLite</ulink>,
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<ulink url="http://firebird.sourceforge.net/">Firebird</ulink>
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and <ulink url="http://www.unixodbc.org/">unixODBC</ulink></para>
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</sect4>
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</sect3>
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</sect2>
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<sect2>
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<title>Installation of <application>Qt</application></title>
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<para>There are several ways to install a complicated package such as
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<application>Qt</application>. The files are not completely position
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independent. Installation procedures execute the program
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<command>pkg-config</command> to determine the location of package executables,
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libraries, headers, and other files. For <application>Qt</application>,
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<command>pkg-config</command> will look for the file
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<filename>lib/pkgconfig/qt-mt.pc</filename> which must be modified if
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relocating the package. This file is set up correctly by the build process.
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</para>
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<para>The default installation places the files in
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<filename class='directory'>/usr/local/qt/</filename>. Many commercial
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distributions place the files in the system's
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<filename class='directory'>/usr</filename> hierarchy. The package can also be
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installed in an arbitrary directory.</para>
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<para>This section will demonstrate two different methods.</para>
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<note><para>The build time for <application>Qt</application> is quite long. If
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you want to save some time and don't want the tutorials and examples, change
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the first make line to:</para>
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<para><userinput><command>make sub-tools</command></userinput></para>
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</note>
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<sect3>
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<title>Method 1 - Installing in the
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<filename class='directory'>/usr</filename> hierarchy</title>
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<para>The advantage of this method is that no updates to the
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<filename>/etc/ld.so.conf</filename> or <filename>/etc/man.conf</filename>
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files are required. The package files are distributed within several
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subdirectories of the <filename class='directory'>/usr</filename> hierarchy.
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This is the method that most commercial distributions use.</para>
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<note><para>If Qt is being reinstalled, run the following commands from
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a console or non-Qt based window manager. It overwrites Qt libraries
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that should not be in use during the install process.</para></note>
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<screen><userinput><command>sed -i -e 's:$(QTDIR)/include:&/qt:' \
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-e 's:$(QTDIR)/lib:&/qt:' \
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mkspecs/linux*/qmake.conf &&
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bash
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export PATH=$PWD/bin:$PATH &&
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export LD_LIBRARY_PATH=$PWD/lib:$LD_LIBRARY_PATH &&
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./configure -prefix /usr -docdir /usr/share/doc/qt \
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-headerdir /usr/include/qt -plugindir /usr/lib/qt/plugins \
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-datadir /usr/share/qt -translationdir /usr/share/qt/translations \
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-sysconfdir /etc/qt -qt-gif -system-zlib -system-libmng \
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-no-exceptions -thread -plugin-imgfmt-png \
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-system-libjpeg -system-libpng &&
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find -type f -name Makefile | xargs sed -i "s@-Wl,-rpath,/usr/lib@@g" &&
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make</command></userinput></screen>
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<para>Now, as the root user:</para>
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<screen><userinput role='root'><command>make install &&
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ln -sf libqt-mt.so /usr/lib/libqt.so &&
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cp -r doc/man /usr/share &&
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cp -r examples /usr/share/doc/qt</command></userinput></screen>
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<para>And finally back as the regular user:</para>
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<screen><userinput><command>exit</command></userinput></screen>
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</sect3>
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<sect3>
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<title>Method 2 - Installing in <filename class='directory'>/opt</filename></title>
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<para>This is the method recommended by the <application>Qt</application>
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developers. It has the advantage of keeping all the package files consolidated
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in a dedicated directory hierarchy. By using this method, an update can be made
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without overwriting a previous installation and users can easily revert to a
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previous version by changing one symbolic link.</para>
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<para>The <application>Qt</application> developers use a default location of
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<filename class='directory'>/usr/local/qt/</filename>, however this procedure
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puts the files in <filename class='directory'>/opt/qt-&qt-version;/</filename>
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and then creates a symbolic link to <filename>/opt/qt/</filename>.</para>
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<screen><userinput><command>bash
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export QTDIR=$PWD &&
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export LD_LIBRARY_PATH=$PWD/lib:$LD_LIBRARY_PATH &&
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export PATH=$PWD/bin:$PATH &&
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./configure -prefix /opt/qt-&qt-version; -qt-gif -system-libpng \
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-system-libmng -system-zlib -system-libjpeg -no-exceptions \
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-thread -plugin-imgfmt-png &&
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make</command></userinput></screen>
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<para>Now, as the root user:</para>
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<screen><userinput role='root'><command>make install &&
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ln -sfn qt-&qt-version; /opt/qt &&
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ln -s libqt-mt.so /opt/qt/lib/libqt.so &&
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cp -r doc/man /opt/qt/doc &&
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cp -r examples /opt/qt/doc</command></userinput></screen>
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<para>And finally back as the regular user:</para>
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<screen><userinput><command>exit</command></userinput></screen>
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<note><para>If you pass the
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<option>-plugin-sql-<replaceable>[driver]</replaceable></option> switch to the
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<command>configure</command> command, you must also pass
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<option>-I<replaceable>[/path/to/sql/headers]</replaceable></option> so
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<command>make</command> can find the appropriate header files.</para></note>
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</sect3>
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</sect2>
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<sect2>
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<title>Command explanations</title>
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<para><command>sed -i -e 's:$(QTDIR)/include:&/qt:'
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-e 's:$(QTDIR)/lib:&/qt:'
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mkspecs/linux*/qmake.conf</command>:
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Directories in qmake.conf need to be adjusted to match
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the BLFS Method 1 installation directories.</para>
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<para><command>bash</command>: This command enters a sub-shell to isolate
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environment changes.</para>
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<para><command>export QTDIR=$PWD</command>: This command defines where the root
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of the <application>Qt</application> directory is located.</para>
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<para><command>export LD_LIBRARY_PATH=$PWD/lib:$LD_LIBRARY_PATH</command>: This
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command allows the not yet installed <application>Qt</application> libraries to
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be used by the not yet installed <application>Qt</application> programs.</para>
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<para><command>export PATH=$PWD/bin:$PATH</command>: This command
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allows the build process to find supporting executables.</para>
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<para><parameter>-qt-gif</parameter>: This switch adds support for
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<filename>gif</filename> files to the libraries.</para>
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<para><parameter>-system-zlib -system-libpng</parameter>: This switch
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forces the build instructions to use the shared libraries that are on your
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system instead of creating a custom set of support libraries for these
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functions.</para>
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<para><parameter>-plugin-imgfmt-png</parameter>: This switch enables
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<application>libpng</application> to be linked to at runtime.</para>
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<para><parameter>-no-exceptions</parameter>: This switch disables
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the exceptions coding generated by the <application>C++</application> compiler.
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</para>
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<para><parameter>-thread</parameter>: This switch adds
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support for multi-threading.</para>
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<para><command>find -type f -name Makefile | xargs sed -i
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"s@-Wl,-rpath,/usr/lib@@g"</command>: This command removes hardcoded run-time
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paths. Otherwise, <command>uic</command> always tries to run with
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<application>Qt</application> libraries in <filename>/usr/lib</filename>.</para>
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<para><command>ln -s libqt-mt.so /usr/lib/libqt.so</command>: This command
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allows <command>configure</command> scripts to find a working
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<application>Qt</application> installation.</para>
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<para><command>cp -r doc/man /usr/share (or /opt/qt/doc)</command>: This command
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installs the man pages which are missed by <command>make install</command>.
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</para>
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<para><command>cp -r examples /usr/share/doc/qt (or /opt/qt/doc)</command>:
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This command installs the examples which are missed by
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<command>make install</command>.</para>
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<para><command>exit</command>: This command returns to the parent shell
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and eliminates environment variables set earlier.</para>
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</sect2>
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<sect2>
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<title>Configuring <application>Qt</application></title>
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<sect3 id='qt-config'>
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<title>Configuration Information</title>
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<para>The <envar>QTDIR</envar> environment variable needs to be set when
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building packages that depend on <application>Qt</application>. Add the
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following to the <filename>.bash_profile</filename> initialization script for
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each user that builds packages using the <application>Qt</application>
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libraries. Alternatively, the variable can be set in the system wide
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<filename>/etc/profile</filename> file.</para>
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<para>For Method 1:</para>
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<screen><userinput>export QTDIR=/usr</userinput></screen>
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<para>or for Method 2:</para>
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<screen><userinput>export QTDIR=/opt/qt</userinput></screen>
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<para>If you installed <application>Qt</application> using Method 2, you also
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need to update the following configuration files so that
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<application>Qt</application> is correctly found by other packages and system
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processes.</para>
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<para>Update the <filename>/etc/ld.so.conf</filename> and
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<filename>/etc/man.conf</filename> files:</para>
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<screen><userinput><command>cat >> /etc/ld.so.conf << "EOF"
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# Begin qt addition to /etc/ld.so.conf
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/opt/qt/lib
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# End qt addition
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EOF
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ldconfig
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cat >> /etc/man.conf << "EOF"
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# Begin qt addition to man.conf
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MANPATH /opt/qt/doc/man
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# End qt addition to man.conf
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EOF</command></userinput></screen>
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<indexterm zone="qt qt-config">
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<primary sortas="e-etc-ld.so.conf">/etc/ld.so.conf</primary>
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</indexterm>
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<indexterm zone="qt qt-config">
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<primary sortas="e-etc-man.conf">/etc/man.conf</primary>
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</indexterm>
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<indexterm zone="qt qt-config">
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<primary sortas="e-etc-profile">/etc/profile</primary>
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</indexterm>
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<indexterm zone="qt qt-config">
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<primary sortas="e-AA.bash_profile">~/.bash_profile</primary>
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</indexterm>
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<para>Update the <envar>PKG_CONFIG_PATH</envar> environment variable in your
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<filename>~/.bash_profile</filename> or <filename>/etc/profile</filename> with
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the following:</para>
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<screen><userinput>PKG_CONFIG_PATH=$PKG_CONFIG_PATH:/opt/qt/lib/pkgconfig</userinput></screen>
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<para>If you want the <application>Qt</application> executables in your shell
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search path, update the <envar>PATH</envar> environment variable in your
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<filename>~/.bash_profile</filename> or <filename>/etc/profile</filename> to
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include <filename class='directory'>/opt/qt/bin</filename>.</para>
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<para>As with most libraries, there is no explicit configuration to do. After
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updating <filename>/etc/ld.so.conf</filename> as explained above, run
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<command>/sbin/ldconfig</command> so that <command>ldd</command> can find the
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shared libraries.</para>
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</sect3>
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</sect2>
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<sect2>
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<title>Contents</title>
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<para>The <application>Qt</application>/<application>X11</application>
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library contains <acronym>API</acronym>s necessary to build and use
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programs based on the <application>Qt</application> <acronym>GUI</acronym>
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toolkit.</para>
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<segmentedlist>
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<segtitle>Installed Programs</segtitle>
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<segtitle>Installed Libraries</segtitle>
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<segtitle>Installed Directories</segtitle>
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<seglistitem>
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<seg>assistant, designer, linguist, lrelease, lupdate, moc,
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qm2ts, qmake, qtconfig, and uic</seg>
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<seg>libqt-mt.so, libqt.so libqui.so, libdesignercore.a,
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libeditor.a, and libqassistantclient.a</seg>
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<seg>/opt/qt-&qt-version; or /usr/lib/qt, /usr/share/qt,
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/usr/share/doc/qt, /usr/include/qt, and /etc/qt</seg>
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</seglistitem>
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</segmentedlist>
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<variablelist>
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<bridgehead renderas="sect3">Short Descriptions</bridgehead>
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<?dbfo list-presentation="list"?>
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<varlistentry id="assistant">
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<term><command>assistant</command></term>
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<listitem>
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<para>is a tool for presenting on-line documentation.</para>
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<indexterm zone="qt assistant">
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<primary sortas="b-assistant">assistant</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="designer">
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<term><command>designer</command></term>
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<listitem>
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<para>is a full-fledged GUI builder. It includes
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powerful features such as preview mode, automatic widget
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layout, support for custom widgets, and an advanced
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property editor.</para>
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<indexterm zone="qt designer">
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<primary sortas="b-designer">designer</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="linguist">
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<term><command>linguist</command></term>
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<listitem>
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<para>provides support for translating applications into
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local languages. </para>
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<indexterm zone="qt linguist">
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<primary sortas="b-linguist">linguist</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="lrelease">
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<term><command>lrelease</command></term>
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<listitem>
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<para>is a simple command line tool. It reads a Qt project
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file and produces message files used by the application.</para>
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<indexterm zone="qt lrelease">
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<primary sortas="b-lrelease">lrelease</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="lupdate">
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<term><command>lupdate</command></term>
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<listitem>
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<para>reads a Qt project file, finds the translatable
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strings in the specified source, header and Qt Designer
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interface files, and produces or updates the translation
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files listed in the project file.</para>
|
|
<indexterm zone="qt lupdate">
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<primary sortas="b-lupdate">lupdate</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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|
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<varlistentry id="moc">
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<term><command>moc</command></term>
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<listitem>
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<para>generates Qt meta object support code.</para>
|
|
<indexterm zone="qt moc">
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<primary sortas="b-moc">moc</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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|
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<varlistentry id="qm2ts">
|
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<term><command>qm2ts</command></term>
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<listitem>
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<para>is a tool for converting Qt message file formats.</para>
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<indexterm zone="qt qm2ts">
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|
<primary sortas="b-qm2ts">qm2ts</primary>
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</indexterm>
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</listitem>
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</varlistentry>
|
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|
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<varlistentry id="qmake">
|
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<term><command>qmake</command></term>
|
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<listitem>
|
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<para>qmake uses information stored in project files to
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determine what should go in the makefiles it generates.</para>
|
|
<indexterm zone="qt qmake">
|
|
<primary sortas="b-qmake">qmake</primary>
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</indexterm>
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</listitem>
|
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</varlistentry>
|
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|
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<varlistentry id="qtconfig">
|
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<term><command>qtconfig</command></term>
|
|
<listitem>
|
|
<para>is used to customize the appearance of Qt applications.</para>
|
|
<indexterm zone="qt qtconfig">
|
|
<primary sortas="b-qtconfig">qtconfig</primary>
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</indexterm>
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|
</listitem>
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</varlistentry>
|
|
|
|
<varlistentry id="uic">
|
|
<term><command>uic</command></term>
|
|
<listitem>
|
|
<para>is a Qt user interface compiler.</para>
|
|
<indexterm zone="qt uic">
|
|
<primary sortas="b-uic">uic</primary>
|
|
</indexterm>
|
|
</listitem>
|
|
</varlistentry>
|
|
</variablelist>
|
|
|
|
</sect2>
|
|
</sect1>
|