/*!
    \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.

    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 (most platforms)

    Trolltech supports building Qt with gcc 3.2 and later. Older versions of
    gcc are not recommended and not supported by Trolltech. They might or
    might not work.

    \section2 GCC on Windows (MinGW)

    We have tested Qt with this compiler on Windows 2000 and 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/Mac.

    \section2 HP-UX

    The hpux-g++ platform is tested with gcc 3.4.3.

    \section2 Solaris

    Please use gcc 3.3.0 or better.

    \section2 Mac OS X

    Please use the latest gcc 3.3 from Apple or better. 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 (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.06.12.

    \section1 Intel C++ Compiler

    \section2 Intel C++ Compiler for Linux

    Trolltech currently tests the following compilers:

    \list
    \o Intel(R) C++ Compiler for applications running on IA-32,
       Version 10.0 Build 20070809 Package ID: l_cc_c_10.0.026
    \o Intel(R) C++ Compiler for applications running on IA-32,
        Version 10.1 Build 20070913 Package ID: l_cc_p_10.1.008
    \o Intel(R) C++ Compiler for applications running on Intel(R) 64,
       Version 10.0 Build 20070809 Package ID: l_cc_c_10.0.026
    \o Intel(R) C++ Compiler for applications running on Intel(R) 64,
        Version 10.1 Build 20070913 Package ID: l_cc_p_10.1.008
    \endlist

    \section2 Known issues with Intel C++ Compiler for Linux

    \list
    \o Precompiled header support does not work prior 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.
    \o Version 10.0.026 for Intel 64 is known to miscompile qmake when
       building in release mode. For now, configure Qt with -debug. This
       issue has been reported to Intel and is awaiting resolution.
    \o Version 10.1.008 for both IA-32 and Intel 64 is known crash
       with "(0): internal error: 0_47021" when compiling Designer in
       release mode. For now, configure Qt with -debug. This issue has
       been reported to Intel and is awaiting resolution.
    \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)

    Qt 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.

    \target Sun Studio
    \section1 Forte Developer / Sun Studio (Solaris)

    \section2 Sun Studio

    Qt is tested using Sun Studio 9 and Sun Studio 10. Go to
    \l{http://developers.sun.com/prodtech/cc/downloads/patches/index.html}{Sun's website}
    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 2003 and Visual Studio 2005 (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 98/Me, Windows NT and Windows 2000, with
    Microsoft Visual C++ 6.0 and Visual Studio .NET.

    In order to use Qt with the Visual Studio 2005 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:

    \code
    QTDIR=C:\Progra~1\Qt
    \endcode

    Visual C++ 6.0 requires Service Pack 5 to work correctly with Qt.
    If you are using Visual C++ version 6.0 we highly recommend that you
    update to SP5.

    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 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.trolltech.com/developer/knowledgebase/faq.2006-12-18.3281869860}{Knowledge Base entry}
    for more information.

    \target xlC
    \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:"
       \code
       /usr/vacpp/bin/makeC++SharedLib -o shr1.o cplussource1.o
       \endcode
    \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.
*/
