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Please review the following information to ** ensure the GNU General Public License version 3.0 requirements will be ** met: http://www.gnu.org/copyleft/gpl.html. ** ** If you are unsure which license is appropriate for your use, please ** contact the sales department at http://www.qtsoftware.com/contact. ** $QT_END_LICENSE$ ** ****************************************************************************/ /*! \page platform-notes-platforms.html \ingroup platform-notes \title Platform Notes \brief Information about the platforms on which Qt can be used. This page contains information about the platforms Qt is currently known to run on, with links to platform-specific notes, including any known bugs or incompatibilities. \list \o \l{Platform Notes - X11} \tableofcontents{1 Platform Notes - X11} \o \l{Platform Notes - Windows} \tableofcontents{1 Platform Notes - Windows} \o \l{Platform Notes - Mac OS X} \tableofcontents{1 Platform Notes - Mac OS X} \o \l{Platform Notes - Embedded Linux} \tableofcontents{1 Platform Notes - Embedded Linux} \o \l{Platform Notes - Windows CE} \tableofcontents{1 Platform Notes - Windows CE} \endlist See also the \l{Compiler Notes} for information about compiler-specific build issues. Information about the combinations of platforms and compilers supported by Qt can be found on the \l{Supported Platforms} page. If you have anything to add to this list or any of the platform or compiler-specific pages, please submit it via the \l{Bug Report Form}. */ /*! \page platform-notes-x11.html \title Platform Notes - X11 \contentspage Platform Notes This page contains information about the X11 platforms Qt is currently known to run on, with links to platform-specific notes. More information about the combinations of platforms and compilers supported by Qt can be found on the \l{Supported Platforms} page. \tableofcontents \target AIX \section1 AIX - 5.2 Qt has been tested on AIX 5.2, using the \l{Compiler Notes#IBM xlC (AIX)}{xlC} compiler. \table \header \o Compiler \o Notes \row \o xlC \o If Qt is built correctly but all symbols are reported to be missing when you link an application, your makeC++SharedLib script might be out of date. Make sure you have the latest version from the \l{http://www-306.ibm.com/software/awdtools/vacpp/support/}{IBM website}. \row \o GCC \o We have tested earlier versions of Qt 4 successfully with GCC version 3.3 and above. Some versions of GCC may fail to link Qt with a "TOC overflow" message. Fix this by upgrading to the latest maintenance release of the dynamic linker. On AIX this is bos.rte.bind_cmds.4.1.5.3 or later. Some versions of GCC may fail to build Qt with STL and large-file support enabled, due to \l{http://gcc.gnu.org/bugzilla/show_bug.cgi?id=9551}{a bug in GCC}. Fix this by upgrading to the latest maintenance release of the compiler. It is also possible to work around this problem by running configure with either \c{-no-stl} or \c{-no-largefile}. \endtable \target FreeBSD \section1 FreeBSD - 6.0-RELEASE \note FreeBSD is a community supported platform. See the \l{Supported Platforms} page for more information. The system compiler on FreeBSD 4.x is gcc 2.95.4, which is not officially supported by Qt 4. We develop using and recommend ports/lang/gcc34. You will need to run configure with the \c{-platform freebsd-g++34} arguments. Optionally, you may use ports/lang/icc. The system compiler on FreeBSD 5.x and 6.x is GCC 3.4.4, which should be sufficient to build Qt. You do not need to add any special arguments when running configure. Optionally, you may use ports/lang/icc. Note that we do not actively test FreeBSD 4.x and 5.x. Our developers migrated to 6.x after the Qt 4 launch. FreeBSD-CURRENT is not supported. \target HP-UX \section1 HP-UX Qt supports HP-UX on both PA-RISC and the Itanium (IA64) architectures. \section2 PA-RISC - B.11.11 or later You can configure Qt for aCC in 32 and 64 bit mode (hpux-acc-64 or hpux-acc-32), or gcc in 32 bit mode (hpux-g++). The default platform is hpux-acc-32. The minimum required version for aCC (HP ANSI C++) on PA-RISC is A.03.57. The supported gcc compiler is gcc 3.4.3. \section2 Itanium - B.11.23 or later You can configure Qt for aCC in 32 and 64 bit mode (hpuxi-acc-64 or hpuxi-acc-32). gcc is currently unsupported. The default platform is hpuxi-acc-64. The minimum required version for aCC (HP ANSI C++) on Itanium is A.06.12. \section2 OpenGL Support Qt's \l{QtOpenGL}{OpenGL} module requires GLX 1.3 or later to be installed. This is available for HP-UX 11i - see the \l{http://docs.hp.com/en/5992-2331/ch04s02.html}{Graphics and Technical Computing Software} section of the release notes for more information. \target IRIX \section1 IRIX - 6.5.x \bold{IRIX is an unsupported platform - please see Qt's online \l{Platform Support Policy} for details.} Unpackaging and IRIX tar: Because of long filenames some files will be cut off incorrectly with IRIX tar. Please use GNU tar to unpack Qt packages. \section1 Linux There are no known problems with using Qt on production versions of Linux/x86, Linux/ppc, Linux/amd64 and Linux/ia64 (including Altix(R)). For the gcc/g++ compiler, please also see the relevant \l{Compiler Notes#GCC}{compiler page}. \section2 Installation problems See also the \l{Installation FAQ}. If you experience problems when installing new open source versions of Qt versions, try to use the open source Qt archives (e.g., RPM) provided by your Linux distribution. If you need to install the source (.tgz) archive, be aware that you will probably end up with two different versions of the Qt library installed on your system, which will probably lead to link errors, like this: \snippet doc/src/snippets/code/doc_src_platform-notes.qdoc 0 Fix this by removing the old version of the library. If you have problems installing open source versions of Qt provided by your Linux distribution (e.g., RPM), please consult the maintainers of the distribution, not us. Some RPM versions have problems installing some of the Qt RPM archives where installation stops with an error message warning about a "Failed Dependency". Use the \c{--nodeps} option to \c rpm to workaround this problem. \target Solaris \section1 Solaris - 9 or later \section2 Unpackaging and Solaris tar On some Solaris systems, both Solaris tar and GNU tar have been reported to truncate long filenames. We recommend using star instead (http://star.berlios.de). \section2 CC on Solaris Be sure to check our \l{Compiler Notes#Sun Studio}{Forte Developer / Sun Studio} notes. \section2 GCC on Solaris Be sure to check the installation notes for \l{GCC on Solaris}. Do not use GCC with Sun's assembler/linker, this will result in link-time errors in shared libraries. Use GNU binutils instead. GCC 3.2.* is known to miscompile Qt due to an optimizer bug that will cause the resulting binaries to hang. Please use GCC 3.4.2 or later. */ /*! \page platform-notes-windows.html \title Platform Notes - Windows \contentspage Platform Notes This page contains information about the Windows platforms Qt is currently known to run on, with links to platform-specific notes. More information about the combinations of platforms and compilers supported by Qt can be found on the \l{Supported Platforms} page. \tableofcontents \section1 Windows Vista At the time Qt %VERSION% was released, there were no known Vista-specific issues. \target Windows NT \section1 Windows XP, Windows 2000 and Windows NT \section2 Installation location Installing Qt into a directory with spaces, e.g. C:\\Program Files, may cause linker errors like the following: \snippet doc/src/snippets/code/doc_src_platform-notes.qdoc 2 Install Qt into a subdirectory without spaces to avoid this problem. \section2 AccelGALAXY graphic card When you use a NT 4.0 machine with the driver number 4,00,1381,1000,021,4.0.0 there is a problem with drag an drop and icons. The computer freezes, and you have to reset. The problem disappears with the newest version of the driver, available at \l{http://www.es.com/}{www.es.com}. \section2 Possible GL conflict There is a known issue with running Microsoft NetMeeting, Lotus SameTime and other applications that require screen grabbing while direct rendering is enabled. Other GL-applications may not work as expected, unless direct rendering is disabled. */ /*! \page platform-notes-mac.html \title Platform Notes - Mac OS X \contentspage Platform Notes This page contains information about the Mac OS X versions Qt is currently known to run on, with links to platform-specific notes. More information about the combinations of platforms and compilers supported by Qt can be found on the \l{Supported Platforms} page. \tableofcontents \section1 General Information Qt 4.4 and Qt 4.5 development is only supported on Mac OS X 10.4 and up. Applications built against these version of Qt can be deployed on Mac OS X 10.3, but cannot be developed on that version of the operating system due to compiler issues. Qt 4.3 has been tested to run on Mac OS X 10.3.9 and up. See notes on the binary package for more information. Qt 4.1 has been tested to run on Mac OS X 10.2.8 and up. Qt 4.1.4 is the last release to work with Mac OS X 10.2. \section2 Required GCC version Apple's gcc 4 that is shipped with the Xcode Tools for both Mac OS X 10.4 and 10.5 will compile Qt. There is preliminary support for gcc 4.2 which is included with Xcode Tools 3.1+ (configurable with \c{-platform macx-g++42}). \section2 Binary Package The binary package requires that you have your .qt-license file in your home directory. Installer.app cannot complete without a valid .qt-license file. Evaluation users of Qt will have information about how to create this file in the email they receive. The binary package was built on Mac OS X 10.4 with Xcode Tools 2.1 (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 and Xcode Tools 2.3 for 4.2.0. It will only link executables built against 10.4 (or a 10.4 SDK). You should be able to run applications linked against these frameworks on Mac OS X 10.3.9 and Mac OS X 10.4+. If you require a different configuration, you will have to use the source package and build with GCC 3.3. \section2 Mac OS X on Intel hardware Qt 4 fully supports both the Intel and PowerPC architectures on the Mac. As of Qt 4.1 it is possible to support the Intel architecture by creating Universal Binaries with qmake. As of Qt 4.1 it is possible to build Qt as a set of universal binaries and frameworks from configure by adding these extra flags: \snippet doc/src/snippets/code/doc_src_platform-notes.qdoc 3 If you are building on Intel hardware you can omit the sdk parameter, but PowerPC hardware requires it. You can also generate universal binaries using qmake. Simply add these lines to your .pro file: \snippet doc/src/snippets/code/doc_src_platform-notes.qdoc 4 \section2 Build Issues If Qt does not build upon executing make, and fails with an error message such as \snippet doc/src/snippets/code/doc_src_platform-notes.qdoc 5 this could be an indication you have upgraded your version of Mac OS X (e.g. 10.3 to 10.4), without upgrading your Developer Tools (Xcode Tools). These must match in order to successfully compile files. Please be sure to upgrade both simultaneously. If problems still occur, contact support. \section2 Fink If you have installed the Qt for X11 package from \l{Fink}, it will set the QMAKESPEC environment variable to darwin-g++. This will cause problems when you build the Qt for Mac OS X package. To fix this, simply unset your QMAKESPEC or set it to macx-g++ before you run configure. You need to have a fresh Qt distribution (make confclean). \section2 MySQL and Mac OS X There seems to be a issue when both -prebind and -multi_module are defined when linking static C libraries into dynamic library. If you get the following error message when linking Qt: \snippet doc/src/snippets/code/doc_src_platform-notes.qdoc 6 re-link Qt using -single_module. This is only a problem when building the MySQL driver into Qt. It does not affect plugins or static builds. \section2 Qt and Precompiled Headers (PCH) Starting with Qt 3.3.0 it is possible to use precompiled headers. They are not enabled by default as it appears that some versions of Apple's GCC and make have problems with this feature. If you want to use precompiled headers when building the Qt source package, specify the -pch option to configure. If, while using precompiled headers, you encounter an internal compile error, try removing the -include header statement from the compile line and trying again. If this solves the problem, it probably is a good idea to turn off precompiled headers. Also, consider filing a bug report with Apple so that they can improve support for this feature. */ /*! \page supported-platforms.html \title Supported Platforms \brief The platforms supported by Nokia for Qt. \ingroup platform-notes Qt is supported on a variety of 32-bit and 64-bit platforms, and can usually be built on each platform with GCC, a vendor-supplied compiler, or a third party compiler. Although Qt may be built on a range of platform-compiler combinations, only a subset of these are actively supported by Qt. A more general overview of the platforms Qt runs on can be found on the \l{Platform Notes} page. Information about the compilers used on each platform can be found on the \l{Compiler Notes} page. \tableofcontents \section1 Most Common Actively Supported Platforms \table \header \o Platform \o Compilers \row \o Apple Mac OS X (32-bit) \o gcc 4.0.1 \row \o Linux (32 and 64-bit) \o gcc 4.1, 4.2, 4.3 \row \o Microsoft Windows \o gcc 3.4.2 (MinGW) (32-bit), MSVC 2003, 2005 (32 and 64-bit), 2008, \l{Known Issues in %VERSION%}{Intel icc (see note)} \endtable Any platform-compiler combinations not listed here should be considered unsupported. \section1 Actively Supported Platforms \table \header \o OS \o Architecture \o Makespec \o Compiler version(s) \row \o AIX \o PowerPC \o aix-xlc \o xlC 6 \row \o AIX \o PowerPC \o aix-xlc-64 \o xlC 6 \row \o HPUX \o PA/RISC \o hpux-acc* \o A.03.57 (aCC 3.57) \row \o HPUX \o PA/RISC \o hpux-g++ \o GCC 3.4.4 \row \o HPUX \o PA/RISC \o hpux-g++-64 \o GCC 3.4.4 \row \o HPUX \o Itanium \o hpuxi-acc* \o A.06.10 (aCC 6.10) \row \o Embedded Linux \o ARM \o qws/linux-arm-g++ \o GCC 3.4, 4.1, 4.2, 4.3 \row \o Embedded Linux \o Intel 32-bit \o qws/linux-x86-g++ \o GCC 3.4, 4.1, 4.2, 4.3 \row \o Linux \o Intel 32/64-bit \o linux-g++ \o GCC 4.1, 4.2, 4.3 \row \o Linux \o Intel 32/64-bit \o linux-icc \o icc 10.1 \row \o Linux \o Intel 32-bit \o linux-icc-32 \o icc 10.1 \row \o Linux \o Intel 64-bit \o linux-icc-64 \o icc 10.1 \row \o Mac OS X \o Intel 32/64-bit, PowerPC \o macx-g++ \o GCC 4.0.1 \row \o Mac OS X \o Intel 32/64-bit, PowerPC \o macx-g++42 \o GCC 4.2 \row \o Solaris \o SPARC, Intel 32-bit \o solaris-cc* \o Sun CC 5.5 \row \o Solaris \o SPARC, Intel 32-bit \o solaris-g++* \o GCC 3.4.2 \row \o Windows XP/Vista \o Intel 32/64-bit \o win32-g++ \o GCC 3.4.2 (MinGW 5.1.4) \row \o Windows XP/Vista \o Intel 32/64-bit \o win32-icc \o icc 9.1 \row \o Windows XP/Vista \o Intel 32/64-bit \o win32-msvc2003 \o Visual Studio 2003 \row \o Windows XP/Vista \o Intel 32/64-bit \o win32-msvc2005 \o Visual Studio 2005 \row \o Windows XP/Vista \o Intel 32/64-bit \o win32-msvc2008 \o Visual Studio 2008 \row \o Windows CE \o Intel 32-bit, ARMv4i, MIPS \o wince*-msvc2005 \o Visual Studio 2005 \row \o Windows CE \o Intel 32-bit, ARMv4i, MIPS \o wince*-msvc2008 \o Visual Studio 2008 \endtable \section1 Community Supported Platforms \table \header \o OS \o Architecture \o Makespec \o Compiler version(s) \row \o Mac OS X \o Intel 32-bit, PowerPC \o darwin-g++ \o - \row \o FreeBSD \o - \o freebsd-g++ \o - \row \o FreeBSD \o - \o freebsd-g++34 \o - \row \o FreeBSD \o - \o freebsd-g++40 \o - \row \o FreeBSD \o - \o freebsd-icc \o - \row \o HPUX \o Itanium \o hpuxi-g++* \o GCC 4.1 \row \o Linux \o - \o linux-cxx \o - \row \o Linux \o - \o linux-ecc-64 \o - \row \o Linux \o Itanium \o linux-g++ \o GCC 3.4 \row \o Linux \o Intel 32/64-bit \o linux-g++ \o GCC 3.3, 3.4 \row \o Linux \o Intel 32/64-bit \o linux-g++ \o GCC 4.0 \row \o Linux \o - \o linux-kcc \o - \row \o Linux \o - \o linux-llvm \o - \row \o Linux \o - \o linux-lsb-g++ \o - \row \o LynxOS \o - \o lynxos-g++ \o - \row \o Mac OS X \o - \o macx-llvm \o - \row \o NetBSD \o - \o netbsd-g++ \o - \row \o OpenBSD \o - \o openbsd-g++ \o - \row \o Embedded Linux \o MIPS, PowerPC \o qws/linux-g++ \o GCC 3.4, 4.1, 4.2, 4.3 \endtable \section1 Unsupported Platforms The following platforms were supported in previous releases, either as actively supported or community supported platforms, but are now unsupported. \table \header \o OS \o Architecture \o Makespec \o Compiler version(s) \row \o IRIX \o MIPS \o irix-cc* \o MIPS Pro \row \o IRIX \o MIPS \o irix-g++* \o GCC 3.3 \row \o Windows XP/Vista \o Intel 32/64-bit \o win32-msvc \o Visual C++ 6.0 \row \o Windows XP/Vista \o Intel 32/64-bit \o win32-msvc2002 \o Visual Studio 2002 \row \o Windows XP/Vista \o Intel 32/64-bit \o win32-msvc.net \o Visual Studio 2002 \endtable Qt's online \l{Platform Support Policy} for Qt describes the level of support you should expect for these platforms. \section1 Supported Features Not all compilers used to build Qt are able to compile all modules. The following table shows the compiler support for five modules that are not uniformly available for all platforms and compilers. \table \header \o Compiler \o{5,1} Features \header \o \o Concurrent \o XmlPatterns \o WebKit \o CLucene \o Phonon \row \o g++ 3.3 \o \o \bold{X} \o \o \bold{X} \o \bold{X} \row \o g++ 3.4 and up \o \bold{X} \o \bold{X} \o \bold{X} \o \bold{X} \o \bold{X} \row \row \o SunCC 5.5 \o \o \o \o \bold{X} \o \bold{X} \row \row \o aCC series 3 \o \o \o \o \bold{X} \o \bold{X} \row \o aCC series 6 \o \bold{X} \o \bold{X} \o \bold{X} \o \bold{X} \o \bold{X} \row \o xlC 6 \o \o \o \o \bold{X} \o \bold{X} \row \o \l{Known Issues in %VERSION%}{Intel CC 10 (see note)} \o \bold{X} \o \bold{X} \o \bold{X} \o \bold{X} \o \bold{X} \row \row \o MSVC 2003 \o \bold{X} \o \bold{X} \o \o \bold{X} \o \bold{X} \row \o MSVC 2005 and up \o \bold{X} \o \bold{X} \o \bold{X} \o \bold{X} \o \bold{X} \endtable */ /*! \page platform-notes-windows-ce.html \title Platform Notes - Windows CE \contentspage Platform Notes This page contains information about the Windows CE and Windows Mobile platforms Qt is currently known to run on, with links to platform-specific notes. More information about the combinations of platforms and compilers supported by Qt can be found on the \l{Supported Platforms} page. */ /*! \page platform-notes-embedded-linux.html \title Platform Notes - Embedded Linux \contentspage Platform Notes This page contains information about the Embedded Linux platforms Qt is currently known to run on, with links to platform-specific notes. More information about the combinations of platforms and compilers supported by Qt can be found on the \l{Supported Platforms} page. */ /*! \page compiler-notes.html \ingroup platform-notes \title Compiler Notes \brief Information about the C++ compilers and tools used to build Qt. This page contains information about the C++ compilers and tools used to build Qt on various platforms. \tableofcontents Please refer to the \l{Platform Notes} for information on the platforms Qt is currently known to run on, and see the \l{Supported Platforms} page for information about the status of each platform. If you have anything to add to this list or any of the platform or compiler-specific pages, please submit it via the \l{Bug Report Form}. \target GCC \section1 GCC \section2 GCC on Windows (MinGW) We have tested Qt with this compiler on Windows XP. The minimal version of MinGW supported is: \list \o GCC 3.4.2 \o MinGW runtime 3.7 \o win32api 3.2 \o binutils 2.15.91 \o mingw32-make 3.80.0-3 \endlist \section2 GCC 4.0.0 The released package of the compiler has some bugs that lead to miscompilations. We recommend using GCC 4.0.1 or later, or to use a recent CVS snapshot of the GCC 4.0 branch. The version of GCC 4.0.0 that is shipped with Mac OS X 10.4 "Tiger" is known to work with Qt for Mac OS X. \section2 HP-UX The hpux-g++ platform is tested with GCC 3.4.4. \section2 Solaris Please use GCC 3.4.2 or later. \section2 Mac OS X Please use the latest GCC 3.3 from Apple or a later version of GCC 3. The gcc 3.3 that is provided with Xcode 1.5 is known to generate bad code. Use the November 2004 GCC 3.3 updater \l{http://connect.apple.com}{available from Apple}. \section2 GCC 3.4.6 (Debian 3.4.6-5) on AMD64 (x86_64) This compiler is known to miscompile some parts of Qt when doing a release build. There are several workarounds: \list 1 \o Use a debug build instead. \o For each miscompilation encountered, recompile the file, removing the -O2 option. \o Add -fno-gcse to the QMAKE_CXXFLAGS_RELEASE. \endlist \section1 HP ANSI C++ (aCC) The hpux-acc-32 and hpux-acc-64 platforms are tested with aCC A.03.57. The hpuxi-acc-32 and hpuxi-acc-64 platforms are tested with aCC A.06.10. \section1 Intel C++ Compiler \warning Please see the \l{Known Issues in %VERSION%} page for information about an issue with this compiler. \section2 Intel C++ Compiler for Linux Nokia currently tests the following compilers: \list \o Intel(R) C++ Compiler for applications running on IA-32, Version 10.1 Build 20080602 Package ID: l_cc_p_10.1.017 \o Intel(R) C++ Compiler for applications running on Intel(R) 64, Version 10.1 Build 20080602 Package ID: l_cc_p_10.1.017 \endlist We do not currently test the IA-64 (Itanium) compiler. \section2 Known Issues with Intel C++ Compiler for Linux \list \o Precompiled header support does not work in version 10.0.025 and older. For these compilers, you should configure Qt with -no-pch. Precompiled header support works properly in version 10.0.026 and later. \o Version 10.0.026 for Intel 64 is known to miscompile qmake when building in release mode. For now, configure Qt with -debug. Version 10.1.008 and later can compile qmake in release mode. \o Versions 10.1.008 to 10.1.015 for both IA-32 and Intel 64 are known crash with "(0): internal error: 0_47021" when compiling QtXmlPatterns, QtWebKit, and Designer in release mode. Version 10.1.017 compiles these modules correctly in release mode. \endlist \section2 Intel C++ Compiler (Windows, Altix) Qt 4 has been tested successfully with: \list \o Windows - Intel(R) C++ Compiler for 32-bit applications, Version 8.1 Build 20050309Z Package ID: W_CC_PC_8.1.026 \o Altix - Intel(R) C++ Itanium(R) Compiler for Itanium(R)-based applications Version 8.1 Build 20050406 Package ID: l_cc_pc_8.1.030 \endlist We currently only test the Intel compiler on 32-bit Windows versions. \section1 MIPSpro (IRIX) \bold{IRIX is an unsupported platform. See the \l{Supported Platforms} page and Qt's Software's online \l{Platform Support Policy} page for details.} Qt 4.4.x requires MIPSpro version 7.4.2m. Note that MIPSpro version 7.4.4m is currently not supported, since it has introduced a number of problems that have not yet been resolved. We recommend using 7.4.2m for Qt development. However, please note the unsupported status of this platform. \target Sun Studio \section1 Forte Developer / Sun Studio (Solaris) \section2 Sun Studio Qt is tested using Sun Studio 8 (Sun CC 5.5). Go to \l{Sun Studio Patches} page on Sun's Web site to download the latest patches for your Sun compiler. \section2 Sun WorkShop 5.0 Sun WorkShop 5.0 is not supported with Qt 4. \section1 Visual Studio (Windows) We do most of our Windows development on Windows XP, using Microsoft Visual Studio .NET 2005 and Visual Studio 2008 (both the 32- and 64-bit versions). Qt works with the Standard Edition, the Professional Edition and Team System Edition of Visual Studio 2005. We also test Qt 4 on Windows XP with Visual Studio .NET and Visual Studio 2003. In order to use Qt with the Visual Studio 2005/2008 Express Edition you need to download and install the platform SDK. Due to limitations in the Express Edition it is not possible for us to install the Qt Visual Studio Integration. You will need to use our command line tools to build Qt applications with this edition. The Visual C++ Linker doesn't understand filenames with spaces (as in \c{C:\Program files\Qt\}) so you will have to move it to another place, or explicitly set the path yourself; for example: \snippet doc/src/snippets/code/doc_src_compiler-notes.qdoc 0 If you are experiencing strange problems with using special flags that modify the alignment of structure and union members (such as \c{/Zp2}) then you will need to recompile Qt with the flags set for the application as well. If you're using Visual Studio .NET (2002) Standard Edition, you should be using the Qt binary package provided, and not the source package. As the Standard Edition does not optimize compiled code, your compiled version of Qt would perform suboptimally with respect to speed. With Visual Studio 2005 Service Pack 1 a bug was introduced which causes Qt not to compile, this has been fixed with a hotfix available from Microsoft. See this \l{http://www.qtsoftware.com/developer/faqs/faq.2006-12-18.3281869860}{Knowledge Base entry} for more information. \section1 IBM xlC (AIX) The makeC++SharedLib utility must be in your PATH and be up to date to build shared libraries. From IBM's \l{http://www.redbooks.ibm.com/abstracts/sg245674.html}{C and C++ Application Development on AIX} Redbook: \list \o "The second step is to use the makeC++SharedLib command to create the shared object. The command has many optional arguments, but in its simplest form, can be used as follows:" \snippet doc/src/snippets/code/doc_src_compiler-notes.qdoc 1 \o "The full path name to the command is not required; however, to avoid this, you will have to add the directory in which it is located to your PATH environment variable. The command is located in the /usr/vacpp/bin directory with the VisualAge C++ Professional for AIX, Version 5 compiler." \endlist \section2 VisualAge C++ for AIX, Version 6.0 Make sure you have the \l{http://www-1.ibm.com/support/search.wss?rs=32&tc=SSEP5D&dc=D400}{latest upgrades} installed. */