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/****************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the documentation of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
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**
** $QT_END_LICENSE$
**
****************************************************************************/
/*!
\page compiler-notes.html
\ingroup platform-specific
\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}
or through the \l{Public Qt Repository}.
\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 Intel CC 10 \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
\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
\note For users of the MinGW binary package: This package is now
based on MinGW 4.4. The installer no longer offers to download
MinGW for you, but rather offers to use a version of MinGW that
you already have installed on your machine. You just tell the
installer which directory MinGW is installed in. If you don't
already have MinGW 4.4 installed, you can download a .zip archive
from our \l{ftp://ftp.trolltech.com/misc/MinGW-gcc440_1.zip} {ftp
site}. This archive provides fixes to MinGW and support for
missing API, See the _patches directory in the archive for
details.
\note A MinGW installation is only needed to build against the
binary pacakge, not to run the pre-compiled binaries that are in
the package.
\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
Qt supports the Intel C++ compiler on both Windows and Linux.
However, there are a few issues on Linux (see the following
section).
\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 9.1.040.
\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 12 (Sun CC 5.9). Go to
\l{Sun Studio Patches} page on Sun's Web site to download
the latest patches for your Sun compiler.
Please note that Qt 4.6 is stricter in its STL requirements and
that the default STL implementation used by Sun CC does not pass
those requirements. This does not affect binary compatibility and
you can continue to use STL in your own code, but Qt's
STL-compatibility functions will be disabled.
Sun CC ships with a secondary STL implementation (called stlport4)
which is standards-compliant and can be used by Qt. You can enable
it by passing the -library=stlport4 option to the compiler. Note
that this does not affect Qt's binary compatibility, but it may
affect that of other libraries and programs that use STL.
\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://qt.nokia.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.
\section2 GCCE (Symbian)
GCCE cannot be used to compile Qt libaries for the Symbian platform, but GCCE is supported
when compiling Qt applications for Symbian platform.
*/
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