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     1 /****************************************************************************
       
     2 **
       
     3 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
       
     4 ** All rights reserved.
       
     5 ** Contact: Nokia Corporation (qt-info@nokia.com)
       
     6 **
       
     7 ** This file is part of the documentation of the Qt Toolkit.
       
     8 **
       
     9 ** $QT_BEGIN_LICENSE:LGPL$
       
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    29 ** Nokia at qt-info@nokia.com.
       
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    36 **
       
    37 **
       
    38 ** $QT_END_LICENSE$
       
    39 **
       
    40 ****************************************************************************/
       
    41 
       
    42 /*!
       
    43     \group platform-specific
       
    44     \title Platform-Specific Documentation
       
    45     \brief Documents describing platform-specific features of Qt.
       
    46 
       
    47     These documents describe platform-specific features provided by Qt, and
       
    48     discuss issues related to particular platforms and environments.
       
    49 
       
    50     \generatelist{related}
       
    51 */
       
    52 
       
    53 /*!
       
    54     \page platform-notes.html
       
    55     \ingroup platform-specific
       
    56     \title Platform Notes
       
    57     \brief Information about the platforms on which Qt can be used.
       
    58 
       
    59     This page contains information about the platforms Qt is currently known
       
    60     to run on, with links to platform-specific notes, including any known bugs
       
    61     or incompatibilities.
       
    62 
       
    63     \list
       
    64     \o \l{Platform Notes - X11}
       
    65     \tableofcontents{1 Platform Notes - X11}
       
    66     \o \l{Platform Notes - Windows}
       
    67     \tableofcontents{1 Platform Notes - Windows}
       
    68     \o \l{Platform Notes - Mac OS X}
       
    69     \tableofcontents{1 Platform Notes - Mac OS X}
       
    70     \o \l{Platform Notes - Symbian}
       
    71     \tableofcontents{1 Platform Notes - Symbian}
       
    72     \o \l{Platform Notes - Embedded Linux}
       
    73     \tableofcontents{1 Platform Notes - Embedded Linux}
       
    74     \o \l{Platform Notes - Windows CE}
       
    75     \tableofcontents{1 Platform Notes - Windows CE}
       
    76     \o \l{Platform Notes - QNX}
       
    77     \tableofcontents{1 Platform Notes - QNX}
       
    78     \o \l{Platform Notes - VxWorks}
       
    79     \tableofcontents{1 Platform Notes - VxWorks}
       
    80     \endlist
       
    81 
       
    82     See also the \l{Compiler Notes} for information about compiler-specific
       
    83     build issues. Information about the combinations of platforms and compilers
       
    84     supported by Qt can be found on the \l{Supported Platforms} page.
       
    85 
       
    86     If you have anything to add to this list or any of the platform or
       
    87     compiler-specific pages, please submit it via the \l{Bug Report Form}
       
    88     or through the \l{Public Qt Repository}.
       
    89 */
       
    90 
       
    91 /*!
       
    92     \page platform-notes-x11.html
       
    93     \title Platform Notes - X11
       
    94     \contentspage Platform Notes
       
    95 
       
    96     This page contains information about the X11 platforms Qt is currently
       
    97     known to run on, with links to platform-specific notes. More information
       
    98     about the combinations of platforms and compilers supported by Qt can be
       
    99     found on the \l{Supported Platforms} page.
       
   100 
       
   101     \tableofcontents
       
   102 
       
   103     \target AIX
       
   104     \section1 AIX - 5.2
       
   105 
       
   106     Qt has been tested on AIX 5.2, using the
       
   107     \l{Compiler Notes#IBM xlC (AIX)}{xlC} compiler.
       
   108 
       
   109     \table
       
   110     \header \o Compiler \o Notes
       
   111     \row    \o xlC
       
   112     \o If Qt is built correctly but all symbols are reported to be missing
       
   113     when you link an application, your makeC++SharedLib script might be out
       
   114     of date. Make sure you have the latest version from the
       
   115     \l{http://www-306.ibm.com/software/awdtools/vacpp/support/}{IBM website}.
       
   116     \row    \o GCC
       
   117     \o We have tested earlier versions of Qt 4 successfully with GCC version
       
   118     3.3 and above. Some versions of GCC may fail to link Qt with a "TOC overflow"
       
   119     message.
       
   120     Fix this by upgrading to the latest maintenance release of the dynamic
       
   121     linker. On AIX this is bos.rte.bind_cmds.4.1.5.3 or later.
       
   122     Some versions of GCC may fail to build Qt with STL and large-file support
       
   123     enabled, due to
       
   124     \l{http://gcc.gnu.org/bugzilla/show_bug.cgi?id=9551}{a bug in GCC}.
       
   125     Fix this by upgrading to the latest maintenance release of the compiler.
       
   126     It is also possible to work around this problem by running configure with
       
   127     either \c{-no-stl} or \c{-no-largefile}.
       
   128     \endtable
       
   129 
       
   130     \target FreeBSD
       
   131     \section1 FreeBSD - 6.0-RELEASE
       
   132 
       
   133     \note FreeBSD is a community supported platform. See the
       
   134     \l{Supported Platforms} page for more information.
       
   135 
       
   136     The system compiler on FreeBSD 4.x is gcc 2.95.4, which is not
       
   137     officially supported by Qt 4. We develop using and recommend
       
   138     ports/lang/gcc34. You will need to run configure with the
       
   139     \c{-platform freebsd-g++34} arguments. Optionally, you may use
       
   140     ports/lang/icc.
       
   141 
       
   142     The system compiler on FreeBSD 5.x and 6.x is GCC 3.4.4, which should be
       
   143     sufficient to build Qt. You do not need to add any special arguments when
       
   144     running configure. Optionally, you may use ports/lang/icc.
       
   145 
       
   146     Note that we do not actively test FreeBSD 4.x and 5.x. Our developers
       
   147     migrated to 6.x after the Qt 4 launch. FreeBSD-CURRENT is not supported.
       
   148 
       
   149     \target HP-UX
       
   150     \section1 HP-UX
       
   151 
       
   152     Qt supports HP-UX on both PA-RISC and the Itanium (IA64) architectures.
       
   153 
       
   154     \section2 PA-RISC - B.11.11 or later
       
   155 
       
   156     You can configure Qt for aCC in 32 and 64 bit mode (hpux-acc-64 or
       
   157     hpux-acc-32), or gcc in 32 bit mode (hpux-g++).  The default platform is
       
   158     hpux-acc-32. The minimum required version for aCC (HP ANSI C++) on PA-RISC
       
   159     is A.03.57. The supported gcc compiler is gcc 3.4.3.
       
   160 
       
   161     \section2 Itanium - B.11.23 or later
       
   162 
       
   163     You can configure Qt for aCC in 32 and 64 bit mode (hpuxi-acc-64 or
       
   164     hpuxi-acc-32). gcc is currently unsupported.  The default platform is
       
   165     hpuxi-acc-64. The minimum required version for aCC (HP ANSI C++) on
       
   166     Itanium is A.06.12.
       
   167 
       
   168     \section2 OpenGL Support
       
   169 
       
   170     Qt's \l{QtOpenGL}{OpenGL} module requires GLX 1.3 or later to be installed.
       
   171     This is available for HP-UX 11i - see the
       
   172     \l{http://docs.hp.com/en/5992-2331/ch04s02.html}{Graphics and Technical Computing Software}
       
   173     section of the release notes for more information.
       
   174 
       
   175     \target IRIX
       
   176     \section1 IRIX - 6.5.x
       
   177 
       
   178     \bold{IRIX is an unsupported platform - please see Qt's online
       
   179     \l{Platform Support Policy} for details.}
       
   180 
       
   181     Unpackaging and IRIX tar:
       
   182     Because of long filenames some files will be cut off incorrectly with IRIX
       
   183     tar. Please use GNU tar to unpack Qt packages.
       
   184 
       
   185     \section1 Linux
       
   186 
       
   187     There are no known problems with using Qt on production versions of
       
   188     Linux/x86, Linux/ppc, Linux/amd64 and Linux/ia64 (including Altix(R)).
       
   189 
       
   190     For the gcc/g++ compiler, please also see the relevant
       
   191     \l{Compiler Notes#GCC}{compiler page}.
       
   192 
       
   193     \section2 Installation problems
       
   194 
       
   195     See also the \l{Installation FAQ}.
       
   196 
       
   197     If you experience problems when installing new open source versions of Qt
       
   198     versions, try to use the open source Qt archives (e.g., RPM)
       
   199     provided by your Linux distribution. If you need to install the source (.tgz)
       
   200     archive, be aware that you will probably end up with two different
       
   201     versions of the Qt library installed on your system, which will probably
       
   202     lead to link errors, like this:
       
   203     \snippet doc/src/snippets/code/doc_src_platform-notes.qdoc 0
       
   204     Fix this by removing the old version of the library.
       
   205 
       
   206     If you have problems installing open source versions of Qt
       
   207     provided by your Linux distribution (e.g., RPM), please consult the
       
   208     maintainers of the distribution, not us.
       
   209 
       
   210     Some RPM versions have problems installing some of the Qt RPM archives
       
   211     where installation stops with an error message warning about a
       
   212     "Failed Dependency". Use the \c{--nodeps} option to \c rpm to workaround
       
   213     this problem.
       
   214 
       
   215     \target Solaris
       
   216     \section1 Solaris - 9 or later
       
   217 
       
   218     \section2 Unpackaging and Solaris tar
       
   219 
       
   220     On some Solaris systems, both Solaris tar and GNU tar have been reported
       
   221     to truncate long filenames. We recommend using star instead
       
   222     (http://star.berlios.de).
       
   223 
       
   224     \section2 CC on Solaris
       
   225 
       
   226     Be sure to check our \l{Compiler Notes#Sun Studio}{Forte Developer / Sun Studio}
       
   227     notes.
       
   228 
       
   229     \section2 GCC on Solaris
       
   230 
       
   231     Be sure to check the installation notes for \l{GCC on Solaris}.
       
   232     Do not use GCC with Sun's assembler/linker, this will result in link-time
       
   233     errors in shared libraries. Use GNU binutils instead. 
       
   234 
       
   235     GCC 3.2.* is known to miscompile Qt due to an optimizer bug that will
       
   236     cause the resulting binaries to hang. Please use GCC 3.4.2 or later.
       
   237 */
       
   238 
       
   239 /*!
       
   240     \page platform-notes-windows.html
       
   241     \title Platform Notes - Windows
       
   242     \contentspage Platform Notes
       
   243 
       
   244     This page contains information about the Windows platforms Qt is currently
       
   245     known to run on, with links to platform-specific notes. More information
       
   246     about the combinations of platforms and compilers supported by Qt can be
       
   247     found on the \l{Supported Platforms} page.
       
   248 
       
   249     \tableofcontents
       
   250 
       
   251     \section1 Windows Vista
       
   252 
       
   253     At the time Qt %VERSION% was released, there were no known Vista-specific issues.
       
   254 
       
   255     \target Windows NT
       
   256     \section1 Windows XP, Windows 2000 and Windows NT
       
   257 
       
   258     \section2 Installation location
       
   259 
       
   260     Installing Qt into a directory with spaces, e.g. C:\\Program Files, may
       
   261     cause linker errors like the following:
       
   262     \snippet doc/src/snippets/code/doc_src_platform-notes.qdoc 2
       
   263 
       
   264     Install Qt into a subdirectory without spaces to avoid this problem.
       
   265 
       
   266     \section2 AccelGALAXY graphic card
       
   267 
       
   268     When you use a NT 4.0 machine with the driver number
       
   269     4,00,1381,1000,021,4.0.0 there is a problem with drag an drop and icons.
       
   270     The computer freezes, and you have to reset. The problem disappears with
       
   271     the newest version of the driver, available at
       
   272     \l{http://www.es.com/}{www.es.com}.
       
   273 
       
   274     \section2 Possible GL conflict
       
   275 
       
   276     There is a known issue with running Microsoft NetMeeting, Lotus SameTime
       
   277     and other applications that require screen grabbing while direct
       
   278     rendering is enabled. Other GL-applications may not work as expected,
       
   279     unless direct rendering is disabled.
       
   280 */
       
   281 
       
   282 /*!
       
   283     \page platform-notes-mac.html
       
   284     \title Platform Notes - Mac OS X
       
   285     \contentspage Platform Notes
       
   286 
       
   287     This page contains information about the Mac OS X versions Qt is currently
       
   288     known to run on, with links to platform-specific notes. More information
       
   289     about the combinations of platforms and compilers supported by Qt can be
       
   290     found on the \l{Supported Platforms} page.
       
   291 
       
   292     \tableofcontents
       
   293 
       
   294     \section1 General Information
       
   295 
       
   296     Qt 4.6 applications can only be deployed on Mac OS X 10.4 (Tiger)
       
   297     and higher. 
       
   298 
       
   299     Qt 4.4 and Qt 4.5 development is only supported on Mac OS X 10.4 and up.
       
   300     Applications built against these version of Qt can be deployed on Mac OS X
       
   301     10.3, but cannot be developed on that version of the operating system due
       
   302     to compiler issues.
       
   303 
       
   304     Qt 4.3 has been tested to run on Mac OS X 10.3.9 and up. See notes on
       
   305     the binary package for more information.
       
   306 
       
   307     Qt 4.1 has been tested to run on Mac OS X 10.2.8 and up. Qt 4.1.4 is the
       
   308     last release to work with Mac OS X 10.2.
       
   309 
       
   310     \section2 Required GCC version
       
   311 
       
   312     Apple's gcc 4 that is shipped with the Xcode Tools for both Mac OS X 10.4
       
   313     and 10.5 will compile Qt. There is preliminary support for gcc 4.2 which
       
   314     is included with Xcode Tools 3.1+ (configurable with
       
   315     \c{-platform macx-g++42}).
       
   316 
       
   317     \section2 Binary Package
       
   318 
       
   319     The binary package requires that you have your .qt-license file in your
       
   320     home directory. Installer.app cannot complete without a valid .qt-license
       
   321     file. Evaluation users of Qt will have information about how to create
       
   322     this file in the email they receive.
       
   323 
       
   324     The binary package was built on Mac OS X 10.4 with Xcode Tools 2.1
       
   325     (gcc 4.0.0) for Qt 4.1.0, Xcode Tools 2.2 (gcc 4.0.1) for Qt 4.1.1-4.1.4
       
   326     and Xcode Tools 2.3 for 4.2.0. It will only link executables built
       
   327     against 10.4 (or a 10.4 SDK). You should be able to run applications
       
   328     linked against these frameworks on Mac OS X 10.3.9 and Mac OS X 10.4+.
       
   329     If you require a different configuration, you will have to use the
       
   330     source package and build with GCC 3.3.
       
   331 
       
   332     \section2 Mac OS X on Intel hardware
       
   333 
       
   334     Qt 4 fully supports both the Intel and PowerPC architectures on the Mac.
       
   335     As of Qt 4.1 it is possible to support the Intel architecture by
       
   336     creating Universal Binaries with qmake. As of Qt 4.1 it is possible to
       
   337     build Qt as a set of universal binaries and frameworks from configure by
       
   338     adding these extra flags:
       
   339 
       
   340     \snippet doc/src/snippets/code/doc_src_platform-notes.qdoc 3
       
   341 
       
   342     If you are building on Intel hardware you can omit the sdk parameter, but
       
   343     PowerPC hardware requires it.
       
   344 
       
   345     You can also generate universal binaries using qmake. Simply add these
       
   346     lines to your .pro file:
       
   347 
       
   348     \snippet doc/src/snippets/code/doc_src_platform-notes.qdoc 4
       
   349 
       
   350     \section2 Build Issues
       
   351 
       
   352     If Qt does not build upon executing make, and fails with an error message
       
   353     such as
       
   354 
       
   355     \snippet doc/src/snippets/code/doc_src_platform-notes.qdoc 5
       
   356 
       
   357     this could be an indication you have upgraded your version of Mac OS X
       
   358     (e.g. 10.3 to 10.4), without upgrading your Developer Tools (Xcode Tools).
       
   359     These must match in order to successfully compile files.
       
   360 
       
   361     Please be sure to upgrade both simultaneously. If problems still occur,
       
   362     contact support.
       
   363 
       
   364     \section2 Fink
       
   365 
       
   366     If you have installed the Qt for X11 package from \l{Fink},
       
   367     it will set the QMAKESPEC environment variable to darwin-g++. This will
       
   368     cause problems when you build the Qt for Mac OS X package. To fix this, simply
       
   369     unset your QMAKESPEC or set it to macx-g++ before you run configure.
       
   370     You need to have a fresh Qt distribution (make confclean).
       
   371 
       
   372     \section2 MySQL and Mac OS X
       
   373 
       
   374     There seems to be a issue when both -prebind and -multi_module are
       
   375     defined when linking static C libraries into dynamic library. If you
       
   376     get the following error message when linking Qt:
       
   377 
       
   378     \snippet doc/src/snippets/code/doc_src_platform-notes.qdoc 6
       
   379 
       
   380     re-link Qt using -single_module. This is only a problem when building the
       
   381     MySQL driver into Qt. It does not affect plugins or static builds.
       
   382 
       
   383     \section2 Qt and Precompiled Headers (PCH)
       
   384 
       
   385     Starting with Qt 3.3.0 it is possible to use precompiled headers. They
       
   386     are not enabled by default as it appears that some versions of Apple's
       
   387     GCC and make have problems with this feature. If you want to use
       
   388     precompiled headers when building the Qt source package, specify the
       
   389     -pch option to configure. If, while using precompiled headers, you
       
   390     encounter an internal compile error, try removing the -include header
       
   391     statement from the compile line and trying again. If this solves the
       
   392     problem, it probably is a good idea to turn off precompiled headers.
       
   393     Also, consider filing a bug report with Apple so that they can
       
   394     improve support for this feature.
       
   395 */
       
   396 
       
   397 /*!
       
   398     \page platform-notes-windows-ce.html
       
   399     \title Platform Notes - Windows CE
       
   400     \contentspage Platform Notes
       
   401 
       
   402     This page contains information about the Windows CE and Windows Mobile
       
   403     platforms Qt is currently known to run on, with links to platform-specific
       
   404     notes. More information about the combinations of platforms and compilers
       
   405     supported by Qt can be found on the \l{Supported Platforms} page.
       
   406 */
       
   407 
       
   408 /*!
       
   409     \page platform-notes-symbian.html
       
   410     \title Platform Notes - Symbian
       
   411     \contentspage Platform Notes
       
   412     \ingroup platform-specific
       
   413     \brief Information about the state of support for the Symbian platform.
       
   414 
       
   415     As with any port, the maturity for Qt for Symbian has not yet reached the
       
   416     same level as other established Qt ports. This page documents the current
       
   417     notes for the Symbian port.
       
   418 
       
   419     \section1 Source Compatibility
       
   420 
       
   421     Qt for Symbian provides the same level of source compatibility guarantee as
       
   422     given for other platforms.  That is, a program which compiles against a given
       
   423     version of Qt for Symbian will also compile against all future versions of the
       
   424     same major release.
       
   425 
       
   426     \section1 Binary Compatibility
       
   427 
       
   428     As with every supported platform, we will strive to maintain
       
   429     application behavior and binary compatibility throughout the lifetime of
       
   430     the Qt 4.x series. However, due to the fact that Symbian support is newly
       
   431     added in 4.6.0, there is a slight possibility that minor corrections to the
       
   432     application binary interface (ABI) might be required in 4.6.1, in order to
       
   433     ensure compatibility going forward. Any such change will be clearly
       
   434     documented in the release notes for 4.6.1.
       
   435 
       
   436     \section1 Supported Devices
       
   437 
       
   438     Qt is designed to work on any device which runs one of the following
       
   439     versions of Symbian:
       
   440 
       
   441     \table
       
   442     \header \o Symbian Version
       
   443     \row \o S60 3.1
       
   444     \row \o S60 3.2
       
   445     \row \o S60 5.0 (Symbian ^1)
       
   446     \endtable
       
   447 
       
   448     Qt has received \l{Tier 1 Platforms}{Tier 1} testing on the following phone models:
       
   449 
       
   450     \table
       
   451     \header \o Phone
       
   452     \row    \o Nokia 5800
       
   453     \row    \o Nokia E71
       
   454     \row    \o Nokia E72
       
   455     \row    \o Nokia N78
       
   456     \row    \o Nokia N95
       
   457     \row    \o Nokia N97
       
   458     \row    \o Samsung i8910
       
   459     \endtable
       
   460 
       
   461     \section1 Supported Functionality
       
   462 
       
   463     The following technologies and classes are not currently supported:
       
   464 
       
   465     \table
       
   466     \header \o Technology
       
   467             \o Note
       
   468     \row    \o QtConcurrent
       
   469             \o Planned for future release.
       
   470     \row    \o QtDBus
       
   471             \o No current plans to support this feature.
       
   472     \row    \o QtOpenGL ES
       
   473             \o Planned for future release.
       
   474     \row    \o Printing support
       
   475             \o No current plans to support this feature.
       
   476     \row    \o Qt3Support
       
   477             \o No current plans to support this feature.
       
   478     \endtable
       
   479 
       
   480     The following technologies have limited support:
       
   481 
       
   482     \table
       
   483     \header \o Technology
       
   484             \o Note
       
   485     \row    \o QtSql
       
   486             \o The only driver supported is SQLite.
       
   487     \row    \o QtMultimedia
       
   488             \o Although the module itself is supported, no backend for Symbian
       
   489                is currently available. However, there is a backend available
       
   490                for Phonon.
       
   491     \endtable
       
   492 
       
   493     \section1 Known Issues
       
   494 
       
   495     Known issues can be found by visiting the
       
   496     \l{http://qt.gitorious.org/qt/pages/QtKnownIssues}{wiki page} with an
       
   497     up-to-date list of known issues, and the list of bugs can be found by
       
   498     \l{http://bugreports.qt.nokia.com/browse/QTBUG/component/19171}{browsing} the
       
   499     S60 component in Qt's public task tracker, located at
       
   500     \l{http://bugreports.qt.nokia.com/}{http://bugreports.qt.nokia.com/}.
       
   501 
       
   502     For information about mixing exceptions with Symbian leaves, see
       
   503     \l{Exception Safety with Symbian}.
       
   504 
       
   505     \section1 Multimedia and Phonon Support
       
   506 
       
   507     Qt provides a backend for Qt's Phonon module, which supports
       
   508     video and sound playback through Symbian's Multimedia Framework, MMF.
       
   509 
       
   510     In this release the support is experimental. Video playback may have
       
   511     flickering issues, and support for effects and playback queueing is
       
   512     incomplete.
       
   513 
       
   514     The audio and video formats that Phonon supports depends on what support
       
   515     the platform provides for MMF. The emulator is known to have limited
       
   516     codec support.
       
   517 
       
   518     In addition, there exists a backend for the Helix framework. However, due
       
   519     to it not shipping with Qt, its availability depends on the Symbian
       
   520     platform in use. If available, it is loaded in preference over the MMF
       
   521     plugin. If the Helix plugin fails to load, the MMF plugin, if present on
       
   522     the device, will be loaded instead.
       
   523 */
       
   524 
       
   525 /*!
       
   526     \page platform-notes-embedded-linux.html
       
   527     \title Platform Notes - Embedded Linux
       
   528     \contentspage Platform Notes
       
   529 
       
   530     This page contains information about the Embedded Linux platforms Qt is
       
   531     currently known to run on, with links to platform-specific notes. More
       
   532     information about the combinations of platforms and compilers supported
       
   533     by Qt can be found on the \l{Supported Platforms} page.
       
   534 */