source: x/lib/qt.xml@ fac11e8

10.0 10.1 11.0 11.1 6.0 6.1 6.2 6.2.0 6.2.0-rc1 6.2.0-rc2 6.3 6.3-rc1 6.3-rc2 6.3-rc3 7.10 7.4 7.5 7.6 7.6-blfs 7.6-systemd 7.7 7.8 7.9 8.0 8.1 8.2 8.3 8.4 9.0 9.1 basic bdubbs/svn elogind gnome kde5-13430 kde5-14269 kde5-14686 krejzi/svn lazarus nosym perl-modules qt5new systemd-11177 systemd-13485 trunk upgradedb xry111/intltool xry111/test-20220226
Last change on this file since fac11e8 was fac11e8, checked in by Randy McMurchy <randy@…>, 18 years ago

Syncronized configure commands between different build methods and added additional command explanation to Qt

git-svn-id: svn://svn.linuxfromscratch.org/BLFS/trunk/BOOK@2812 af4574ff-66df-0310-9fd7-8a98e5e911e0

  • Property mode set to 100644
File size: 12.2 KB
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1<?xml version="1.0" encoding="ISO-8859-1"?>
2<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.3//EN"
3 "http://www.oasis-open.org/docbook/xml/4.3/docbookx.dtd" [
4 <!ENTITY % general-entities SYSTEM "../../general.ent">
5 %general-entities;
6
7 <!ENTITY qt-download-http "http://sunsite.rediris.es/mirror/Qt/source/qt-x11-free-&qt-version;.tar.bz2">
8 <!ENTITY qt-download-ftp "ftp://ftp.trolltech.com/qt/source/qt-x11-free-&qt-version;.tar.bz2">
9 <!ENTITY qt-md5sum "3e0a0c8429b0a974b39b5f535ddff01c">
10 <!ENTITY qt-size "14.4 MB">
11 <!ENTITY qt-buildsize "250 MB">
12 <!ENTITY qt-time "19.3 SBU (full), 13.4 SBU (sub-tools)">
13]>
14
15<sect1 id="qt" xreflabel="Qt-&qt-version;">
16<sect1info>
17<othername>$LastChangedBy$</othername>
18<date>$Date$</date>
19</sect1info>
20<?dbhtml filename="qt.html" ?>
21<title>Qt-&qt-version;</title>
22
23<sect2>
24<title>Introduction to <application>Qt</application></title>
25
26<para>The <application>Qt</application> package contains a
27<application>C++</application> <acronym>GUI</acronym> library. This is useful
28for creating graphical applications or executing graphical applications that
29are dynamically linked to the <application>Qt</application> library. One of the
30major users of <application>Qt</application> is <application>KDE</application>.
31</para>
32
33<sect3><title>Package information</title>
34<itemizedlist spacing='compact'>
35<listitem><para>Download (HTTP): <ulink url="&qt-download-http;"/></para></listitem>
36<listitem><para>Download (FTP): <ulink url="&qt-download-ftp;"/></para></listitem>
37<listitem><para>MD5 Sum: &qt-md5sum;</para></listitem>
38<listitem><para>Download size: &qt-size;</para></listitem>
39<listitem><para>Estimated Disk space required: &qt-buildsize;</para></listitem>
40<listitem><para>Estimated build time: &qt-time;</para></listitem></itemizedlist>
41</sect3>
42
43<sect3><title><application>Qt</application> dependencies</title>
44<sect4><title>Required</title>
45<para><xref linkend="x-installing"/></para>
46</sect4>
47
48<sect4><title>Recommended</title>
49<para><xref linkend="libjpeg"/> and <xref linkend="libmng"/></para>
50</sect4>
51
52<sect4><title>Optional</title>
53<para><xref linkend="nas"/>, <xref linkend="cups"/>, <xref linkend="mysql"/>,
54<xref linkend="postgresql"/>, <ulink url="http://sqlite.org/">SQLite</ulink>,
55<ulink url="http://firebird.sourceforge.net/">Firebird</ulink>
56and <ulink url="http://www.unixodbc.org/">unixODBC</ulink></para>
57</sect4>
58</sect3>
59</sect2>
60
61<sect2>
62<title>Installation of <application>Qt</application></title>
63
64<para>There are several ways to install a complicated package such as
65<application>Qt</application>. The files are not completely position
66independent. Installation procedures execute the program
67<command>pkg-config</command> to determine the location of package executables,
68libraries, headers, and other files. For <application>Qt</application>,
69<command>pkg-config</command> will look for the file
70<filename>lib/pkgconfig/qt-mt.pc</filename> which must be modified if
71relocating the package. This file is set up correctly by the build process.
72</para>
73
74<para>The default installation places the files in
75<filename class='directory'>/usr/local/qt/</filename>. Many commercial
76distributions place the files in the system's
77<filename class='directory'>/usr</filename> hierarchy. The package can also be
78installed in an arbitrary directory.</para>
79
80<para>This section will demonstrate two different methods.</para>
81
82<note><para>The build time for <application>Qt</application> is quite long. If
83you want to save some time and don't want the tutorials and examples, change
84the first make line to:</para>
85
86<para><userinput><command>make sub-tools</command></userinput></para>
87</note>
88
89<sect3>
90<title>Method 1 - Installing in the
91<filename class='directory'>/usr</filename> hierarchy</title>
92
93<para>The advantage of this method is that no updates to the
94<filename>/etc/ld.so.conf</filename> or <filename>/etc/man.conf</filename>
95files are required. The package files are distributed within several
96subdirectories of the <filename class='directory'>/usr</filename> hierarchy.
97This is the method that most commercial distributions use.</para>
98
99<screen><userinput><command>sed -i "s:cp -f:install:" mkspecs/linux-g++/qmake.conf &amp;&amp;
100bash
101export PATH=$PWD/bin:$PATH &amp;&amp;
102export LD_LIBRARY_PATH=$PWD/lib:$LD_LIBRARY_PATH &amp;&amp;
103./configure -prefix /usr -docdir /usr/share/doc/qt \
104 -headerdir /usr/include/qt -plugindir /usr/lib/qt/plugins \
105 -datadir /usr/share/qt -translationdir /usr/share/qt/translations \
106 -sysconfdir /etc/qt -qt-gif -system-zlib -system-libmng \
107 -no-exceptions -thread -plugin-imgfmt-png \
108 -system-libjpeg -system-libpng &amp;&amp;
109find -type f -name Makefile | xargs sed -i "s@-Wl,-rpath,/usr/lib@@g" &amp;&amp;
110make &amp;&amp;
111make install &amp;&amp;
112ln -sf libqt-mt.so /usr/lib/libqt.so &amp;&amp;
113rm /usr/bin/qmake &amp;&amp;
114install -m755 -oroot -groot qmake/qmake /usr/bin &amp;&amp;
115cp -r doc/man /usr/share &amp;&amp;
116cp -r examples /usr/share/doc/qt &amp;&amp;
117exit</command></userinput></screen>
118
119</sect3>
120
121<sect3>
122<title>Method 2 - Installing in <filename class='directory'>/opt</filename></title>
123
124<para>This is the method recommended by the <application>Qt</application>
125developers. It has the advantage of keeping all the package files consolidated
126in a dedicated directory hierarchy. By using this method, an update can be made
127without overwriting a previous installation and users can easily revert to a
128previous version by changing one symbolic link.</para>
129
130<para>The <application>Qt</application> developers use a default location of
131<filename class='directory'>/usr/local/qt/</filename>, however this procedure
132puts the files in <filename class='directory'>/opt/qt-&qt-version;/</filename>
133and then creates a symbolic link to <filename>/opt/qt/</filename>.</para>
134
135<screen><userinput><command>bash
136export QTDIR=$PWD &amp;&amp;
137export LD_LIBRARY_PATH=$PWD/lib:$LD_LIBRARY_PATH &amp;&amp;
138export PATH=$PWD/bin:$PATH &amp;&amp;
139./configure -prefix /opt/qt-&qt-version; -qt-gif -system-libpng \
140 -system-libmng -system-zlib -system-libjpeg -no-exceptions \
141 -thread -plugin-imgfmt-png &amp;&amp;
142make &amp;&amp;
143make install &amp;&amp;
144ln -sfn qt-&qt-version; /opt/qt &amp;&amp;
145ln -s libqt-mt.so /opt/qt/lib/libqt.so &amp;&amp;
146rm /opt/qt-&qt-version;/bin/qmake &amp;&amp;
147install -m755 -oroot -groot qmake/qmake /opt/qt-&qt-version;/bin &amp;&amp;
148cp -r doc/man /opt/qt/doc &amp;&amp;
149cp -r examples /opt/qt/doc
150exit</command></userinput></screen>
151
152<note><para>If you pass the
153<option>-plugin-sql-<replaceable>[driver]</replaceable></option> switch to the
154<command>configure</command> command, you must also pass
155<option>-I<replaceable>[/path/to/sql/headers]</replaceable></option> so
156<command>make</command> can find the appropriate header files.</para></note>
157</sect3>
158
159</sect2>
160
161<sect2>
162<title>Command explanations</title>
163
164<para><command>sed -i "s:cp -f:install:" mkspecs/linux-g++/qmake.conf</command>:
165<command>install</command> is safer than <command>cp</command> when
166libraries are in use.</para>
167
168<para><command>bash</command>: This command enters a sub-shell to isolate
169environment changes.</para>
170
171<para><command>export QTDIR=$PWD</command>: This command defines where the root
172of the <application>Qt</application> directory is located.</para>
173
174<para><command>export LD_LIBRARY_PATH=$PWD/lib:$LD_LIBRARY_PATH</command>: This
175command allows the not yet installed <application>Qt</application> libraries to
176be used by the not yet installed <application>Qt</application> programs.</para>
177
178<para><command>export PATH=$PWD/bin:$PATH</command>: This command
179allows the build process to find supporting executables.</para>
180
181<para><parameter>-qt-gif</parameter>: This switch adds support for
182<filename>gif</filename> files to the libraries.</para>
183
184<para><parameter>-system-zlib -system-libpng</parameter>: This switch
185forces the build instructions to use the shared libraries that are on your
186system instead of creating a custom set of support libraries for these
187functions.</para>
188
189<para><parameter>-plugin-imgfmt-png</parameter>: This switch enables
190<application>libpng</application> to be linked to at runtime.</para>
191
192<para><parameter>-no-exceptions</parameter>: This switch disables
193the exceptions coding generated by the <application>C++</application> compiler.
194</para>
195
196<para><parameter>-thread</parameter>: This switch adds
197support for multi-threading.</para>
198
199<para><command>find -type f -name Makefile | xargs sed -i
200"s@-Wl,-rpath,/usr/lib@@g"</command>: This command removes hardcoded run-time
201paths. Otherwise, <command>uic</command> always tries to run with
202<application>Qt</application> libraries in <filename>/usr/lib</filename>.</para>
203
204<para><command>ln -s libqt-mt.so /usr/lib/libqt.so</command>: This command
205allows <command>configure</command> scripts to find a working
206<application>Qt</application> installation.</para>
207
208<para><command>rm .../qmake; install -m755 -oroot -groot qmake/qmake .../bin</command>:
209The <command>qmake</command> program is installed incorrectly by
210<command>make install</command>. These two commands install the program
211correctly.</para>
212
213<para><command>cp -r doc/man /usr/share (or /opt/qt/doc)</command>: This command
214installs the man pages which are missed by <command>make install</command>.
215</para>
216
217<para><command>cp -r examples /usr/share/doc/qt (or /opt/qt/doc)</command>:
218This command installs the examples which are missed by
219<command>make install</command>.</para>
220
221<para><command>exit</command>: This command returns to the parent shell
222and eliminates environment variables set earlier.</para>
223
224</sect2>
225
226<sect2>
227<title>Configuring <application>Qt</application></title>
228
229<sect3><title>Configuration Information</title>
230<para>If you installed <application>Qt</application> using Method 2, you need
231to update some configuration files so that <application>Qt</application> is
232correctly found by other packages and system processes.</para>
233
234<para>Update the <filename>/etc/ld.so.conf</filename> and
235<filename>/etc/man.conf</filename> files:</para>
236
237<screen><userinput><command>cat &gt;&gt; /etc/ld.so.conf &lt;&lt; "EOF"
238# Begin qt addition to /etc/ld.so.conf
239
240/opt/qt/lib
241
242# End qt addition
243EOF
244ldconfig
245
246cat &gt;&gt; /etc/man.conf &lt;&lt; "EOF"
247# Begin qt addition to man.conf
248
249MANPATH /opt/qt/doc/man
250
251# End qt addition to man.conf
252EOF</command></userinput></screen>
253
254<para>Update the <envar>PKG_CONFIG_PATH</envar> environment variable in your
255<filename>~/.bash_profile</filename> or <filename>/etc/profile</filename> with
256the following:</para>
257
258<screen><userinput>PKG_CONFIG_PATH=$PKG_CONFIG_PATH:/opt/qt/lib/pkgconfig</userinput></screen>
259
260<para>The <envar>QTDIR</envar> environment variable needs to be set when
261building packages that depend on <application>Qt</application>. Add the
262following to the <filename>.bash_profile</filename> initialization script for
263each user that builds packages using the <application>Qt</application>
264libraries. Alternatively, the variable can be set in the system wide
265<filename>/etc/profile</filename> file.</para>
266
267<screen><userinput>export QTDIR=/opt/qt</userinput></screen>
268
269<para>If you want the <application>Qt</application> executables in your shell
270search path, update the <envar>PATH</envar> environment variable in your
271<filename>~/.bash_profile</filename> or <filename>/etc/profile</filename> to
272include <filename class='directory'>/opt/qt/bin</filename>.</para>
273
274<para>As with most libraries, there is no explicit configuration to do. After
275updating <filename>/etc/ld.so.conf</filename> as explained above, run
276<command>/sbin/ldconfig</command> so that <command>ldd</command> can find the
277shared libraries.</para>
278
279</sect3>
280
281</sect2>
282
283<sect2>
284<title>Contents</title>
285
286<para>The <application>Qt</application>/<application>X11</application>
287library contains <acronym>API</acronym>s necessary to use
288programs based on the <application>Qt</application> <acronym>GUI</acronym>
289toolkit.</para>
290
291<para>The <application>Qt</application> package contains
292<command>assistant</command>,
293<command>designer</command>,
294<command>linguist</command>,
295<command>lrelease</command>,
296<command>lupdate</command>,
297<command>moc</command>,
298<command>qm2ts</command>,
299<command>qmake</command>,
300<command>qtconfig</command>,
301<command>uic</command>, and the
302<filename class="libraryfile">libqt-mt</filename> and
303<filename class="libraryfile">libqui</filename> libraries.</para>
304
305</sect2>
306</sect1>
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