Merge branch '4.8' of git://gitorious.org/qt/qt into 4.8

90 files changed, 2459 insertions, 1166 deletions

diff --git a/config.tests/unix/ipc_posix/ipc.cpp b/config.tests/unix/ipc_posix/ipc.cpp
new file mode 100644
index 0000000..fde8a99
--- /dev/null
+++ b/config.tests/unix/ipc_posix/ipc.cpp
@@ -0,0 +1,58 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the config.tests 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <sys/types.h>
+#include <sys/ipc.h>
+#include <sys/mman.h>
+#include <semaphore.h>
+#include <fcntl.h>
+
+int main(int, char **)
+{
+    sem_t *semaphore = sem_open("test", O_CREAT | O_EXCL, 0666, 0);
+    if (semaphore != SEM_FAILED)
+        sem_close(semaphore);
+
+    shm_open("test", O_RDWR | O_CREAT | O_EXCL, 0666);
+    shm_unlink("test");
+
+    return 0;
+}
diff --git a/config.tests/unix/ipc_posix/ipc_posix.pro b/config.tests/unix/ipc_posix/ipc_posix.pro
new file mode 100644
index 0000000..1b6de02
--- /dev/null
+++ b/config.tests/unix/ipc_posix/ipc_posix.pro
@@ -0,0 +1,3 @@
+SOURCES = ipc.cpp
+CONFIG -= qt dylib
+mac:CONFIG -= app_bundle
diff --git a/config.tests/unix/ipc_sysv/ipc.cpp b/config.tests/unix/ipc_sysv/ipc.cpp
new file mode 100644
index 0000000..7f04552
--- /dev/null
+++ b/config.tests/unix/ipc_sysv/ipc.cpp
@@ -0,0 +1,59 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the config.tests 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <sys/types.h>
+#include <sys/ipc.h>
+#include <sys/sem.h>
+#include <sys/shm.h>
+#include <fcntl.h>
+
+int main(int, char **)
+{
+    key_t unix_key = ftok("test", 'Q');
+    int semaphore = semget(unix_key, 1, 0666 | IPC_CREAT | IPC_EXCL);
+    if (semaphore != -1)
+        semctl(semaphore, 0, IPC_RMID, 0);
+
+    shmget(unix_key, 0, 0666 | IPC_CREAT | IPC_EXCL);
+    shmctl(0, 0, static_cast<struct shmid_ds *>(0));
+
+    return 0;
+}
diff --git a/config.tests/unix/ipc_sysv/ipc_sysv.pro b/config.tests/unix/ipc_sysv/ipc_sysv.pro
new file mode 100644
index 0000000..1b6de02
--- /dev/null
+++ b/config.tests/unix/ipc_sysv/ipc_sysv.pro
@@ -0,0 +1,3 @@
+SOURCES = ipc.cpp
+CONFIG -= qt dylib
+mac:CONFIG -= app_bundle
diff --git a/configure b/configure
index f99ab32..ec04414 100755
--- a/configure
+++ b/configure
@@ -5112,6 +5112,19 @@ if [ "$XPLATFORM_SYMBIAN" = "yes" ]; then
     fi
 fi
 
+# check IPC support
+if ! "$unixtests/compile.test" "$XQMAKESPEC" "$QMAKE_CONFIG" $OPT_VERBOSE "$relpath" "$outpath" config.tests/unix/ipc_sysv "ipc_sysv" $L_FLAGS $I_FLAGS $l_FLAGS ; then
+    # SYSV IPC is not supported - check POSIX IPC
+    if "$unixtests/compile.test" "$XQMAKESPEC" "$QMAKE_CONFIG" $OPT_VERBOSE "$relpath" "$outpath" config.tests/unix/ipc_posix "ipc_posix" $L_FLAGS $I_FLAGS $l_FLAGS ; then
+        QCONFIG_FLAGS="$QCONFIG_FLAGS QT_POSIX_IPC"
+    else
+        QCONFIG_FLAGS="$QCONFIG_FLAGS QT_NO_SYSTEMSEMAPHORE QT_NO_SHAREDMEMORY"
+        if [ "$PLATFORM_QWS" = "yes" ]; then
+            QCONFIG_FLAGS="$QCONFIG_FLAGS QT_NO_SEMAPHORE QT_NO_QWS_MULTIPROCESS QT_NO_QWS_SHARE_FONTS"
+        fi
+    fi
+fi
+
 # detect zlib
 if [ "$CFG_ZLIB" = "no" ]; then
     # Note: Qt no longer support builds without zlib
diff --git a/dist/changes-4.8.0 b/dist/changes-4.8.0
index 1703633..02205b3 100644
--- a/dist/changes-4.8.0
+++ b/dist/changes-4.8.0
@@ -99,6 +99,8 @@ Qt for Mac OS X
 
 Qt for Embedded Linux
 ---------------------
+ - Added support for QNX 6.5 with multi-process support, and much improved mouse,
+   keyboard and screen drivers.
 
 
 Qt for Windows CE
diff --git a/doc/src/platforms/platform-notes-rtos.qdoc b/doc/src/platforms/platform-notes-rtos.qdoc
index 62d5add..0b1265b 100644
--- a/doc/src/platforms/platform-notes-rtos.qdoc
+++ b/doc/src/platforms/platform-notes-rtos.qdoc
@@ -160,7 +160,7 @@
     X11 embedded server is not recommended due to missing support for X11 extensions,
     resulting in poor rendering quality.
 
-    Qt for QNX contains experimental screen and input drivers based on QNX's
+    Qt for QNX contains screen and input drivers based on QNX's
     \c devi-hid and \c io-display. For more information, check the class documentation
     for QQnxScreen, QWSQnxKeyboardHandler and QQnxMouseHandler. See the
     \l{Porting Qt for Embedded Linux to a New Architecture} document for information
@@ -170,7 +170,7 @@
 
     \section1 Supported Versions
 
-    Qt has been tested on QNX 6.4 on i386 and PowerPC targets with QNX's default
+    Qt has been tested on QNX 6.5 on i386, ARM/ARM-v7 and PowerPC targets with QNX's default
     gcc compiler.
 
     \section1 Limitations
@@ -179,16 +179,12 @@
 
     \table
     \header \o Function \o Notes
-    \row \o QProcess
-         \o Not available - QNX doesn't support mixing threads and processes.
-    \row \o QSharedMemory
-         \o Not available - QNX doesn't support SYSV style shared memory.
-    \row \o QSystemSemaphore
-         \o Not available - QNX doesn't support SYSV style system semaphores.
-    \row \o QWS Multi Process
-         \o QT_NO_QWS_MULTIPROCESS is always on due to missing shared memory support.
     \row \o Phonon
          \o There is no standard audio backend, which could be integrated into Phonon.
+    \row \o QtMultimedia
+         \o There is no standard backend, which could be integrated into QtMultimedia.
+    \row \o QtDBus
+         \o The the QtDBus library is not available on QNX.
     \row \o Qt3Support
          \o The Qt3Support library is not available on QNX.
     \endtable
@@ -203,24 +199,25 @@
     i386 QNX target:
 
     \code
-    configure -xplatform unsupported/qws/qnx-i386-g++ -embedded i386 -no-gfx-linuxfb -no-mouse-linuxtp -no-kbd-tty -no-qt3support -qt-gfx-qnx -qt-mouse-qnx -qt-kbd-qnx -no-exceptions
+    configure -xplatform unsupported/qws/qnx-i386-g++ -embedded x86 -no-gfx-linuxfb -no-mouse-linuxtp -no-kbd-tty -no-qt3support -qt-mouse-qnx -qt-kbd-qnx -qt-gfx-qnx -depths 16,24,32,generic -no-exceptions
     \endcode
 
     \list
     \o \c{-xplatform unsupported/qws/qnx-i386-g++} - selects the i386-g++ mkspec for QNX
-    \o \c{-embedded i386} - builds the embedded version of Qt and sets the architecture to i386
+    \o \c{-embedded x86} - builds the embedded version of Qt and sets the architecture to i386
     \o \c{-no-gfx-linuxfb},  \c{-no-mouse-linuxtp} and \c{-no-kbd-tty} are Linux specific and won't work on QNX
     \o \c{-no-qt3support} - required since the Qt3 support classes are not supported on QNX
     \o \c{-no-exceptions} - reduces the size of the library by disabling exception support
-    \o \c{-qt-gfx-qnx} - enables the experimental \c{io-graphics} based display driver
-    \o \c{-qt-mouse-qnx} - enables the experimental \c{devi-hig} based mouse driver
-    \o \c{-qt-kbd-qnx} - enables the experimental \c{devi-hig} based keyboard driver
+    \o \c{-qt-mouse-qnx} - enables the \c{devi-hid} based mouse driver
+    \o \c{-qt-kbd-qnx} - enables the \c{devi-hid} based keyboard driver
+    \o \c{-qt-gfx-qnx} - enables the \c{io-graphics} based screen driver
+    \o \c{-depths 16,24,32,generic} - enables all modes supported by the QNX screen driver
     \endlist
 
     \section1 General Notes
 
     \list
-    \o To enable the experimental QNX display and input drivers, \c{io-display} needs to be
+    \o To enable the QNX screen and input drivers, \c{io-display} needs to be
        up and running. The \c devi-hid based Qt input drivers require \c devi-hid to run
        in resource mode without Photon support. To enable a standard mouse and keyboard
        combination, run \c devi-hid as follows: \c{/usr/photon/bin/devi-hid -Pr kbd mouse}.
@@ -235,8 +232,8 @@
        with a newer version, or disable the TIFF plugin entierly by appending
        \c{QT_CONFIG += no-tiff} to \c{.qmake.cache} after configuring Qt.
 
-    \o Some of the tools, examples and demos do not compile due to dependencies on QProcess
-       or other classes that are not available on QNX.
+    \o Some of the tools, examples and demos do not compile due to dependencies on classes
+       that are not available on QNX.
     \endlist
 
     \section1 Platform Regressions
@@ -244,6 +241,14 @@
     Qt for QNX's behavior is mostly identical with \l{Qt for Embedded Linux}. However,
     some regressions were spotted in QDateTime computation around year 0 and year 1970,
     which have been tracked back to faulty time zone data on some QNX versions.
+
+    QString::localeAwareCompare() only works for C locale.
+
+    QTranslator's default locale-based fallback mechanism doesn't work.
+
+    QSystemSemaphore: Due to POSIX semaphores limitations, the semaphore operations aren't
+    automatically undone when the process terminates. This potentially may lead to unexpected
+    lock-ups in applications which does use the SysV semaphores behavior.
 */
 
 /*!
diff --git a/mkspecs/common/qnx/qmake.conf b/mkspecs/common/qnx/qmake.conf
new file mode 100644
index 0000000..d241b61
--- /dev/null
+++ b/mkspecs/common/qnx/qmake.conf
@@ -0,0 +1,33 @@
+#
+# qmake configuration common for qnx-g++ without X11
+#
+
+include(../gcc-base-unix.conf)
+include(../g++-unix.conf)
+include(../linux.conf)
+include(../qws.conf)
+
+CONFIG                 += qnx
+QT                     -= network
+
+QMAKE_COMPILER_DEFINES += __QNXNTO__
+
+# modifications to linux.conf and qws.conf
+QMAKE_LIBS             =
+QMAKE_LIBS_DYNLOAD     =
+QMAKE_LIBS_NIS         =
+QMAKE_LIBS_EGL         = -lEGL
+QMAKE_LIBS_OPENGL      = $$QMAKE_LIBS_EGL -lGLESv1_CM -lGLESv2
+QMAKE_LIBS_OPENGL_QT   = $$QMAKE_LIBS_OPENGL
+QMAKE_LIBS_OPENGL_ES1  = $$QMAKE_LIBS_EGL -lGLESv1_CM
+QMAKE_LIBS_OPENGL_ES2  = $$QMAKE_LIBS_EGL -lGLESv2
+QMAKE_LIBS_OPENVG      = $$QMAKE_LIBS_EGL -lOpenVG
+QMAKE_LIBS_THREAD      =
+
+QMAKE_LIBS_CORE        =
+QMAKE_LIBS_NETWORK     += -lsocket
+QMAKE_LIBS_GUI         += -lsocket
+
+# QNX doesn't have install
+QMAKE_INSTALL_FILE     =
+QMAKE_INSTALL_PROGRAM  =
diff --git a/mkspecs/common/qnx/qplatformdefs.h b/mkspecs/common/qnx/qplatformdefs.h
new file mode 100644
index 0000000..bf7a0a0
--- /dev/null
+++ b/mkspecs/common/qnx/qplatformdefs.h
@@ -0,0 +1,104 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the qmake spec 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QPLATFORMDEFS_H
+#define QPLATFORMDEFS_H
+
+// Get Qt defines/settings
+#include <qglobal.h>
+
+// Set any POSIX/XOPEN defines at the top of this file to turn on specific APIs
+
+#include <unistd.h>
+
+// We are hot - unistd.h should have turned on the specific APIs we requested
+
+#include <pthread.h>
+#include <dirent.h>
+#include <fcntl.h>
+#include <grp.h>
+#include <pwd.h>
+#include <signal.h>
+
+#include <sys/types.h>
+#include <sys/ioctl.h>
+#include <sys/ipc.h>
+#include <sys/time.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+#include <netinet/in.h>
+#ifndef QT_NO_IPV6IFNAME
+#include <net/if.h>
+#endif
+
+// for htonl
+#include <arpa/inet.h>
+
+#define QT_USE_XOPEN_LFS_EXTENSIONS
+#define QT_NO_READDIR64
+#include "../posix/qplatformdefs.h"
+
+#include <stdlib.h>
+
+#define QT_SNPRINTF             ::snprintf
+#define QT_VSNPRINTF            ::vsnprintf
+
+
+#include <sys/neutrino.h>
+
+#if !defined(_NTO_VERSION) || _NTO_VERSION < 650
+// pre-6.5 versions of QNX doesn't have getpagesize()
+inline int getpagesize()
+{
+    return ::sysconf(_SC_PAGESIZE);
+}
+
+// pre-6.5 versions of QNX doesn't have strtof()
+inline float strtof(const char *b, char **e)
+{
+    return float(strtod(b, e));
+}
+#endif
+
+#define QT_QWS_TEMP_DIR QString::fromLocal8Bit(qgetenv("TMPDIR").constData())
+
+#endif // QPLATFORMDEFS_H
diff --git a/mkspecs/unsupported/qnx-g++/qmake.conf b/mkspecs/unsupported/qnx-g++/qmake.conf
index 83c4a26..e354b2c 100644
--- a/mkspecs/unsupported/qnx-g++/qmake.conf
+++ b/mkspecs/unsupported/qnx-g++/qmake.conf
@@ -4,58 +4,16 @@
 # Written for QNX RTOS v6 with X11
 #
 
-MAKEFILE_GENERATOR	= UNIX
-TARGET_PLATFORM		= unix
-TEMPLATE		= app
-CONFIG			+= qt warn_on release link_prl
-QT			+= core gui
+include(../../common/qnx/qmake.conf)
 
-include(../common/gcc-base-unix.conf)
-include(../common/g++-unix.conf)
-include(../common/unix.conf)
-
-QMAKE_CFLAGS_THREAD	= -D_REENTRANT
-QMAKE_CXXFLAGS_THREAD	= $$QMAKE_CLFAGS_THREAD
-QMAKE_COMPILER_DEFINES  += __QNXNTO__
-
-QMAKE_INCDIR		=
-QMAKE_LIBDIR		=
 QMAKE_INCDIR_X11	= /opt/X11R6/include
 QMAKE_LIBDIR_X11	= /opt/X11R6/lib
-QMAKE_INCDIR_QT		= $$[QT_INSTALL_HEADERS]
-QMAKE_LIBDIR_QT		= $$[QT_INSTALL_LIBS]
 QMAKE_INCDIR_OPENGL	= /opt/X11R6/include
 QMAKE_LIBDIR_OPENGL	= /opt/X11R6/lib
 
-#QMAKE_LIBS		= -lunix
-QMAKE_LIBS		=
-QMAKE_LIBS_DYNLOAD	=
 QMAKE_LIBS_X11		= -lXext -lX11 -lm -lsocket
 QMAKE_LIBS_X11SM	= -lSM -lICE
 QMAKE_LIBS_OPENGL	= -lGL
 QMAKE_LIBS_OPENGL_QT	= -lGL
-QMAKE_LIBS_THREAD	=
-QMAKE_LIBS_NETWORK      = -lsocket
-
-QMAKE_MOC		= $$[QT_INSTALL_BINS]/moc
-QMAKE_UIC		= $$[QT_INSTALL_BINS]/uic
-
-QMAKE_AR		= ar cqs
-QMAKE_RANLIB		=
-
-QMAKE_TAR		= tar -cf
-QMAKE_GZIP		= gzip -9f
 
-QMAKE_COPY		= cp -f
-QMAKE_COPY_FILE       = $(COPY)
-QMAKE_COPY_DIR        = $(COPY) -r
-QMAKE_MOVE		= mv -f
-QMAKE_DEL_FILE		= rm -f
-QMAKE_DEL_DIR		= rmdir
-QMAKE_CHK_DIR_EXISTS	= test -d
-QMAKE_MKDIR		= mkdir -p
-QMAKE_STRIP           = strip
-QMAKE_STRIPFLAGS_LIB += --strip-unneeded
-QMAKE_CHK_DIR_EXISTS  = test -d
-QMAKE_MKDIR           = mkdir -p
 load(qt_config)
diff --git a/mkspecs/unsupported/qnx-g++/qplatformdefs.h b/mkspecs/unsupported/qnx-g++/qplatformdefs.h
index 8b50f92..34c1525 100644
--- a/mkspecs/unsupported/qnx-g++/qplatformdefs.h
+++ b/mkspecs/unsupported/qnx-g++/qplatformdefs.h
@@ -39,68 +39,4 @@
 **
 ****************************************************************************/
 
-#ifndef QPLATFORMDEFS_H
-#define QPLATFORMDEFS_H
-
-// Get Qt defines/settings
-
-#include "qglobal.h"
-
-// Set any POSIX/XOPEN defines at the top of this file to turn on specific APIs
-
-#include <unistd.h>
-
-
-// We are hot - unistd.h should have turned on the specific APIs we requested
-
-
-#include <pthread.h>
-#include <dirent.h>
-#include <fcntl.h>
-#include <grp.h>
-#include <pwd.h>
-#include <signal.h>
-
-#include <sys/types.h>
-#include <sys/ioctl.h>
-#include <sys/ipc.h>
-#include <sys/time.h>
-// QNX doesn't have the System V <sys/shm.h> header. This is not a standard
-// POSIX header, it's only documented in the Single UNIX Specification.
-// The preferred POSIX compliant way to share memory is to use the functions
-// in <sys/mman.h> that comply with the POSIX Real Time Interface (1003.1b).
-#include <sys/mman.h>
-#include <sys/socket.h>
-#include <sys/stat.h>
-#include <sys/wait.h>
-#include <netinet/in.h>
-#ifndef QT_NO_IPV6IFNAME
-#include <net/if.h>
-#endif
-
-// for htonl
-#include <arpa/inet.h>
-
-#define QT_USE_XOPEN_LFS_EXTENSIONS
-#include "../../common/posix/qplatformdefs.h"
-
-#define QT_SNPRINTF		::snprintf
-#define QT_VSNPRINTF		::vsnprintf
-
-// QNX6 doesn't have getpagesize()
-inline int getpagesize()
-{
-    return ::sysconf(_SC_PAGESIZE);
-}
-
-#include <stdlib.h>
-
-// QNX6 doesn't have strtof - use strtod instead
-inline float strtof(const char *b, char **e)
-{
-    return float(strtod(b, e));
-}
-
-#define QT_QWS_TEMP_DIR QString::fromLatin1(qgetenv("TMP"))
-
-#endif // QPLATFORMDEFS_H
+#include "../../common/qnx/qplatformdefs.h"
diff --git a/mkspecs/unsupported/qws/qnx-641/qmake.conf b/mkspecs/unsupported/qws/qnx-641/qmake.conf
index 441f408..304ac67 100644
--- a/mkspecs/unsupported/qws/qnx-641/qmake.conf
+++ b/mkspecs/unsupported/qws/qnx-641/qmake.conf
@@ -59,7 +59,7 @@ QMAKE_PCH_OUTPUT_EXT    = .gch
 QMAKE_LFLAGS_BSYMBOLIC_FUNC = -Wl,-Bsymbolic-functions
 QMAKE_LFLAGS_DYNAMIC_LIST = -Wl,--dynamic-list,
 
-include(../../common/unix.conf)
+include(../../../common/unix.conf)
 
 QMAKE_CFLAGS_THREAD	= -D_REENTRANT
 QMAKE_CXXFLAGS_THREAD	= $$QMAKE_CFLAGS_THREAD
diff --git a/mkspecs/unsupported/qws/qnx-641/qplatformdefs.h b/mkspecs/unsupported/qws/qnx-641/qplatformdefs.h
index 0c71265..ea04d0f 100644
--- a/mkspecs/unsupported/qws/qnx-641/qplatformdefs.h
+++ b/mkspecs/unsupported/qws/qnx-641/qplatformdefs.h
@@ -39,4 +39,4 @@
 **
 ****************************************************************************/
 
-#include "../../qnx-g++/qplatformdefs.h"
+#include "../../../common/qnx/qplatformdefs.h"
diff --git a/mkspecs/unsupported/qws/qnx-arm-g++/qmake.conf b/mkspecs/unsupported/qws/qnx-arm-g++/qmake.conf
new file mode 100644
index 0000000..b9f946e
--- /dev/null
+++ b/mkspecs/unsupported/qws/qnx-arm-g++/qmake.conf
@@ -0,0 +1,32 @@
+#
+# qmake configuration for qnx-arm-g++
+#
+# Written for QNX RTOS v6
+#
+
+include(../../../common/qnx/qmake.conf)
+
+# modifications to gcc-base.conf and g++-base.conf
+
+#Bug in arm compiler for QNX
+QMAKE_CFLAGS_RELEASE   = -O1
+QMAKE_CFLAGS_RELEASE_WITH_DEBUGINFO = -O1 -g
+
+QMAKE_CXXFLAGS_RELEASE = $$QMAKE_CFLAGS_RELEASE
+QMAKE_CXXFLAGS_RELEASE_WITH_DEBUGINFO = $$QMAKE_CFLAGS_RELEASE_WITH_DEBUGINFO
+
+QMAKE_CC               = ntoarm-gcc
+QMAKE_CXX              = ntoarm-g++
+
+QMAKE_LINK             = ntoarm-g++
+QMAKE_LINK_SHLIB       = $$QMAKE_LINK
+QMAKE_LINK_C           = ntoarm-gcc
+QMAKE_LINK_C_SHLIB     = $$QMAKE_LINK_C
+
+# modifications to linux.conf
+QMAKE_AR               = ntoarm-ar cqs
+QMAKE_STRIP            = ntoarm-strip
+QMAKE_RANLIB           = ntoarm-ranlib
+QMAKE_OBJCOPY          = ntoarm-objcopy
+
+load(qt_config)
diff --git a/mkspecs/unsupported/qws/qnx-arm-g++/qplatformdefs.h b/mkspecs/unsupported/qws/qnx-arm-g++/qplatformdefs.h
new file mode 100644
index 0000000..5817a53
--- /dev/null
+++ b/mkspecs/unsupported/qws/qnx-arm-g++/qplatformdefs.h
@@ -0,0 +1,42 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the qmake spec 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "../../../common/qnx/qplatformdefs.h"
diff --git a/mkspecs/unsupported/qws/qnx-armv7-g++/qmake.conf b/mkspecs/unsupported/qws/qnx-armv7-g++/qmake.conf
new file mode 100644
index 0000000..c6763d5
--- /dev/null
+++ b/mkspecs/unsupported/qws/qnx-armv7-g++/qmake.conf
@@ -0,0 +1,32 @@
+#
+# qmake configuration for qnx-armv7-g++
+#
+# Written for QNX RTOS v6
+#
+
+include(../../../common/qnx/qmake.conf)
+
+# modifications to gcc-base.conf and g++-base.conf
+
+# note: on the NVidia Tegra 2 and on the Marvell Dovecott, '-mfpu=neon' should be removed
+QMAKE_CFLAGS_RELEASE   = -O3 -march=armv7-a -mfpu=neon -mfloat-abi=softfp
+QMAKE_CFLAGS_RELEASE_WITH_DEBUGINFO = -O3 -g -march=armv7-a -mfpu=neon -mfloat-abi=softfp
+
+QMAKE_CXXFLAGS_RELEASE = $$QMAKE_CFLAGS_RELEASE
+QMAKE_CXXFLAGS_RELEASE_WITH_DEBUGINFO = $$QMAKE_CFLAGS_RELEASE_WITH_DEBUGINFO
+
+QMAKE_CC               = ntoarmv7-gcc
+QMAKE_CXX              = ntoarmv7-g++
+
+QMAKE_LINK             = ntoarmv7-g++
+QMAKE_LINK_SHLIB       = $$QMAKE_LINK
+QMAKE_LINK_C           = ntoarmv7-gcc
+QMAKE_LINK_C_SHLIB     = $$QMAKE_LINK_C
+
+# modifications to linux.conf
+QMAKE_AR               = ntoarmv7-ar cqs
+QMAKE_STRIP            = ntoarmv7-strip
+QMAKE_RANLIB           = ntoarmv7-ranlib
+QMAKE_OBJCOPY          = ntoarmv7-objcopy
+
+load(qt_config)
diff --git a/mkspecs/unsupported/qws/qnx-armv7-g++/qplatformdefs.h b/mkspecs/unsupported/qws/qnx-armv7-g++/qplatformdefs.h
new file mode 100644
index 0000000..5817a53
--- /dev/null
+++ b/mkspecs/unsupported/qws/qnx-armv7-g++/qplatformdefs.h
@@ -0,0 +1,42 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the qmake spec 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "../../../common/qnx/qplatformdefs.h"
diff --git a/mkspecs/unsupported/qws/qnx-generic-g++/qmake.conf b/mkspecs/unsupported/qws/qnx-generic-g++/qmake.conf
index bb760b2..f5e7045 100644
--- a/mkspecs/unsupported/qws/qnx-generic-g++/qmake.conf
+++ b/mkspecs/unsupported/qws/qnx-generic-g++/qmake.conf
@@ -1,102 +1,24 @@
 #
-# qmake configuration for qnx-g++
+# qmake configuration for qnx-generic-g++
 #
 # Written for QNX RTOS v6
 #
 
-MAKEFILE_GENERATOR	= UNIX
-TARGET_PLATFORM		= unix
-TEMPLATE		= app
-CONFIG			+= qt warn_on release link_prl
-QT			+= core gui
+include(../../../common/qnx/qmake.conf)
 
-#
-# qmake configuration for common gcc
-#
-
-QMAKE_CC		= ntox86-gcc-3.3.5
-QMAKE_CFLAGS		+= -pipe
-QMAKE_CFLAGS_DEPS	+= -M
-QMAKE_CFLAGS_WARN_ON	+= -Wall -W
-QMAKE_CFLAGS_WARN_OFF	+= -w
-QMAKE_CFLAGS_RELEASE	+= -O2
-QMAKE_CFLAGS_DEBUG	+= -g
-QMAKE_CFLAGS_SHLIB	+= -fPIC
-QMAKE_CFLAGS_STATIC_LIB	+= -fPIC
-QMAKE_CFLAGS_YACC	+= -Wno-unused -Wno-parentheses
-QMAKE_CFLAGS_HIDESYMS   += -fvisibility=hidden
-QMAKE_CFLAGS_PRECOMPILE += -x c-header -c ${QMAKE_PCH_INPUT} -o ${QMAKE_PCH_OUTPUT}
-QMAKE_CFLAGS_USE_PRECOMPILE += -include ${QMAKE_PCH_OUTPUT_BASE}
-QMAKE_COMPILER_DEFINES  += __QNXNTO__
-
-QMAKE_CXX		= ntox86-g++-3.3.5
-QMAKE_CXXFLAGS		+= $$QMAKE_CFLAGS
-QMAKE_CXXFLAGS_DEPS	+= $$QMAKE_CFLAGS_DEPS
-QMAKE_CXXFLAGS_WARN_ON	+= $$QMAKE_CFLAGS_WARN_ON
-QMAKE_CXXFLAGS_WARN_OFF	+= $$QMAKE_CFLAGS_WARN_OFF
-QMAKE_CXXFLAGS_RELEASE	+= $$QMAKE_CFLAGS_RELEASE
-QMAKE_CXXFLAGS_DEBUG	+= $$QMAKE_CFLAGS_DEBUG
-QMAKE_CXXFLAGS_SHLIB	+= $$QMAKE_CFLAGS_SHLIB
-QMAKE_CXXFLAGS_STATIC_LIB += $$QMAKE_CFLAGS_STATIC_LIB
-QMAKE_CXXFLAGS_YACC	+= $$QMAKE_CFLAGS_YACC
-QMAKE_CXXFLAGS_HIDESYMS += $$QMAKE_CFLAGS_HIDESYMS -fvisibility-inlines-hidden
-QMAKE_CXXFLAGS_PRECOMPILE += -x c++-header -c ${QMAKE_PCH_INPUT} -o ${QMAKE_PCH_OUTPUT}
-QMAKE_CXXFLAGS_USE_PRECOMPILE = $$QMAKE_CFLAGS_USE_PRECOMPILE
-
-QMAKE_LINK		= ntox86-gcc-3.3.5
-QMAKE_LINK_SHLIB	= ntox86-gcc-3.3.5
-QMAKE_LFLAGS		+= -Wl,--no-undefined
-QMAKE_LFLAGS_RELEASE	+=
-QMAKE_LFLAGS_DEBUG	+=
-QMAKE_LFLAGS_APP	+=
-QMAKE_LFLAGS_SHLIB	+= -shared
-QMAKE_LFLAGS_PLUGIN	+= $$QMAKE_LFLAGS_SHLIB
-QMAKE_LFLAGS_SONAME	+= -Wl,-soname,
-QMAKE_LFLAGS_THREAD	+=
-QMAKE_LFLAGS_RPATH	= -Wl,-rpath,
-
-QMAKE_PCH_OUTPUT_EXT    = .gch
-
-# -Bsymbolic-functions (ld) support
-QMAKE_LFLAGS_BSYMBOLIC_FUNC = -Wl,-Bsymbolic-functions
-QMAKE_LFLAGS_DYNAMIC_LIST = -Wl,--dynamic-list,
-
-include(../../common/unix.conf)
-
-QMAKE_CFLAGS_THREAD	= -D_REENTRANT
-QMAKE_CXXFLAGS_THREAD	= $$QMAKE_CLFAGS_THREAD
-
-QMAKE_INCDIR		=
-QMAKE_LIBDIR		=
-QMAKE_INCDIR_QT		= $$[QT_INSTALL_HEADERS]
-QMAKE_LIBDIR_QT		= $$[QT_INSTALL_LIBS]
-
-#QMAKE_LIBS		= -lunix
-QMAKE_LIBS		=
-QMAKE_LIBS_DYNLOAD	=
-QMAKE_LIBS_THREAD	=
-QMAKE_LIBS_NETWORK      += -lsocket
-QMAKE_LIBS_GUI          += -lsocket
-
-QMAKE_MOC		= $$[QT_INSTALL_BINS]/moc
-QMAKE_UIC		= $$[QT_INSTALL_BINS]/uic
+# derived from g++-base.conf
+#QMAKE_CC               = gcc
+#QMAKE_CXX              = g++
 
-QMAKE_AR		= ar cqs
-QMAKE_RANLIB		=
+#QMAKE_LINK             = g++
+#QMAKE_LINK_SHLIB       = g++
+#QMAKE_LINK_C           = gcc
+#QMAKE_LINK_C_SHLIB     = gcc
 
-QMAKE_TAR		= tar -cf
-QMAKE_GZIP		= gzip -9f
+# derived from linux.conf
+#QMAKE_AR               = ar cqs
+#QMAKE_OBJCOPY          = objcopy
+#QMAKE_RANLIB           =
+#QMAKE_STRIP            = strip
 
-QMAKE_COPY		= cp -f
-QMAKE_COPY_FILE       = $(COPY)
-QMAKE_COPY_DIR        = $(COPY) -r
-QMAKE_MOVE		= mv -f
-QMAKE_DEL_FILE		= rm -f
-QMAKE_DEL_DIR		= rmdir
-QMAKE_CHK_DIR_EXISTS	= test -d
-QMAKE_MKDIR		= mkdir -p
-QMAKE_STRIP           = strip
-QMAKE_STRIPFLAGS_LIB += --strip-unneeded
-QMAKE_CHK_DIR_EXISTS  = test -d
-QMAKE_MKDIR           = mkdir -p
 load(qt_config)
diff --git a/mkspecs/unsupported/qws/qnx-generic-g++/qplatformdefs.h b/mkspecs/unsupported/qws/qnx-generic-g++/qplatformdefs.h
index 0c71265..ea04d0f 100644
--- a/mkspecs/unsupported/qws/qnx-generic-g++/qplatformdefs.h
+++ b/mkspecs/unsupported/qws/qnx-generic-g++/qplatformdefs.h
@@ -39,4 +39,4 @@
 **
 ****************************************************************************/
 
-#include "../../qnx-g++/qplatformdefs.h"
+#include "../../../common/qnx/qplatformdefs.h"
diff --git a/mkspecs/unsupported/qws/qnx-i386-g++/qmake.conf b/mkspecs/unsupported/qws/qnx-i386-g++/qmake.conf
index b43c391..6940bd8 100644
--- a/mkspecs/unsupported/qws/qnx-i386-g++/qmake.conf
+++ b/mkspecs/unsupported/qws/qnx-i386-g++/qmake.conf
@@ -1,98 +1,24 @@
 #
-# qmake configuration for qnx-g++
+# qmake configuration for qnx-i386-g++
 #
 # Written for QNX RTOS v6
 #
 
-MAKEFILE_GENERATOR	= UNIX
-TARGET_PLATFORM		= unix
-TEMPLATE		= app
-CONFIG			+= qt warn_on release link_prl
-QT			+= core gui
+include(../../../common/qnx/qmake.conf)
 
-QMAKE_CC		= ntox86-gcc-4.2.4
-QMAKE_CFLAGS		+= -pipe
-QMAKE_CFLAGS_DEPS	+= -M
-QMAKE_CFLAGS_WARN_ON	+= -Wall -W
-QMAKE_CFLAGS_WARN_OFF	+= -w
-QMAKE_CFLAGS_RELEASE	+= -O2
-QMAKE_CFLAGS_DEBUG	+= -g
-QMAKE_CFLAGS_SHLIB	+= -fPIC
-QMAKE_CFLAGS_STATIC_LIB	+= -fPIC
-QMAKE_CFLAGS_YACC	+= -Wno-unused -Wno-parentheses
-QMAKE_CFLAGS_HIDESYMS   += -fvisibility=hidden
-QMAKE_CFLAGS_PRECOMPILE += -x c-header -c ${QMAKE_PCH_INPUT} -o ${QMAKE_PCH_OUTPUT}
-QMAKE_CFLAGS_USE_PRECOMPILE += -include ${QMAKE_PCH_OUTPUT_BASE}
-QMAKE_COMPILER_DEFINES  += __QNXNTO__
+# modifications to g++-base.conf
+QMAKE_CC               = ntox86-gcc
+QMAKE_CXX              = ntox86-g++
 
-QMAKE_CXX		= ntox86-g++-4.2.4
-QMAKE_CXXFLAGS		+= $$QMAKE_CFLAGS
-QMAKE_CXXFLAGS_DEPS	+= $$QMAKE_CFLAGS_DEPS
-QMAKE_CXXFLAGS_WARN_ON	+= $$QMAKE_CFLAGS_WARN_ON
-QMAKE_CXXFLAGS_WARN_OFF	+= $$QMAKE_CFLAGS_WARN_OFF
-QMAKE_CXXFLAGS_RELEASE	+= $$QMAKE_CFLAGS_RELEASE
-QMAKE_CXXFLAGS_DEBUG	+= $$QMAKE_CFLAGS_DEBUG
-QMAKE_CXXFLAGS_SHLIB	+= $$QMAKE_CFLAGS_SHLIB
-QMAKE_CXXFLAGS_STATIC_LIB += $$QMAKE_CFLAGS_STATIC_LIB
-QMAKE_CXXFLAGS_YACC	+= $$QMAKE_CFLAGS_YACC
-QMAKE_CXXFLAGS_HIDESYMS += $$QMAKE_CFLAGS_HIDESYMS -fvisibility-inlines-hidden
-QMAKE_CXXFLAGS_PRECOMPILE += -x c++-header -c ${QMAKE_PCH_INPUT} -o ${QMAKE_PCH_OUTPUT}
-QMAKE_CXXFLAGS_USE_PRECOMPILE = $$QMAKE_CFLAGS_USE_PRECOMPILE
+QMAKE_LINK             = ntox86-g++
+QMAKE_LINK_SHLIB       = $$QMAKE_LINK
+QMAKE_LINK_C           = ntox86-gcc
+QMAKE_LINK_C_SHLIB     = $$QMAKE_LINK_C
 
-QMAKE_LINK		= ntox86-g++-4.2.4
-QMAKE_LINK_SHLIB	= ntox86-g++-4.2.4
-QMAKE_LFLAGS		+= -Wl,--no-undefined
-QMAKE_LFLAGS_RELEASE	+=
-QMAKE_LFLAGS_DEBUG	+=
-QMAKE_LFLAGS_APP	+=
-QMAKE_LFLAGS_SHLIB	+= -shared
-QMAKE_LFLAGS_PLUGIN	+= $$QMAKE_LFLAGS_SHLIB
-QMAKE_LFLAGS_SONAME	+= -Wl,-soname,
-QMAKE_LFLAGS_THREAD	+=
-QMAKE_LFLAGS_RPATH	= -Wl,-rpath,
+# modifications to linux.conf
+QMAKE_AR               = ntox86-ar cqs
+QMAKE_OBJCOPY          = ntox86-objcopy
+QMAKE_RANLIB           = ntox86-ranlib
+QMAKE_STRIP            = ntox86-strip
 
-QMAKE_PCH_OUTPUT_EXT    = .gch
-
-# -Bsymbolic-functions (ld) support
-QMAKE_LFLAGS_BSYMBOLIC_FUNC = -Wl,-Bsymbolic-functions
-QMAKE_LFLAGS_DYNAMIC_LIST = -Wl,--dynamic-list,
-
-include(../../../common/unix.conf)
-
-QMAKE_CFLAGS_THREAD	= -D_REENTRANT
-QMAKE_CXXFLAGS_THREAD	= $$QMAKE_CFLAGS_THREAD
-
-QMAKE_INCDIR		=
-QMAKE_LIBDIR		=
-QMAKE_INCDIR_QT		= $$[QT_INSTALL_HEADERS]
-QMAKE_LIBDIR_QT		= $$[QT_INSTALL_LIBS]
-
-#QMAKE_LIBS		= -lunix
-QMAKE_LIBS		=
-QMAKE_LIBS_DYNLOAD	=
-QMAKE_LIBS_THREAD	=
-QMAKE_LIBS_NETWORK      += -lsocket
-QMAKE_LIBS_GUI          += -lsocket
-
-QMAKE_MOC		= $$[QT_INSTALL_BINS]/moc
-QMAKE_UIC		= $$[QT_INSTALL_BINS]/uic
-
-QMAKE_AR		= ar cqs
-QMAKE_RANLIB		=
-
-QMAKE_TAR		= tar -cf
-QMAKE_GZIP		= gzip -9f
-
-QMAKE_COPY		= cp -f
-QMAKE_COPY_FILE       = $(COPY)
-QMAKE_COPY_DIR        = $(COPY) -r
-QMAKE_MOVE		= mv -f
-QMAKE_DEL_FILE		= rm -f
-QMAKE_DEL_DIR		= rmdir
-QMAKE_CHK_DIR_EXISTS	= test -d
-QMAKE_MKDIR		= mkdir -p
-QMAKE_STRIP           = strip
-QMAKE_STRIPFLAGS_LIB += --strip-unneeded
-QMAKE_CHK_DIR_EXISTS  = test -d
-QMAKE_MKDIR           = mkdir -p
 load(qt_config)
diff --git a/mkspecs/unsupported/qws/qnx-i386-g++/qplatformdefs.h b/mkspecs/unsupported/qws/qnx-i386-g++/qplatformdefs.h
index 0c71265..ea04d0f 100644
--- a/mkspecs/unsupported/qws/qnx-i386-g++/qplatformdefs.h
+++ b/mkspecs/unsupported/qws/qnx-i386-g++/qplatformdefs.h
@@ -39,4 +39,4 @@
 **
 ****************************************************************************/
 
-#include "../../qnx-g++/qplatformdefs.h"
+#include "../../../common/qnx/qplatformdefs.h"
diff --git a/mkspecs/unsupported/qws/qnx-ppc-g++/qmake.conf b/mkspecs/unsupported/qws/qnx-ppc-g++/qmake.conf
index 29a2952..cb4d391 100644
--- a/mkspecs/unsupported/qws/qnx-ppc-g++/qmake.conf
+++ b/mkspecs/unsupported/qws/qnx-ppc-g++/qmake.conf
@@ -1,98 +1,24 @@
 #
-# qmake configuration for qnx-g++
+# qmake configuration for qnx-ppc-g++
 #
 # Written for QNX RTOS v6
 #
 
-MAKEFILE_GENERATOR	= UNIX
-TARGET_PLATFORM		= unix
-TEMPLATE		= app
-CONFIG			+= qt warn_on release link_prl
-QT			+= core gui
+include(../../../common/qnx/qmake.conf)
 
-QMAKE_CC		= ntoppc-gcc-4.3.3
-QMAKE_CFLAGS		+= -pipe
-QMAKE_CFLAGS_DEPS	+= -M
-QMAKE_CFLAGS_WARN_ON	+= -Wall -W
-QMAKE_CFLAGS_WARN_OFF	+= -w
-QMAKE_CFLAGS_RELEASE	+= -O2
-QMAKE_CFLAGS_DEBUG	+= -g
-QMAKE_CFLAGS_SHLIB	+= -fPIC
-QMAKE_CFLAGS_STATIC_LIB	+= -fPIC
-QMAKE_CFLAGS_YACC	+= -Wno-unused -Wno-parentheses
-QMAKE_CFLAGS_HIDESYMS   += -fvisibility=hidden
-QMAKE_CFLAGS_PRECOMPILE += -x c-header -c ${QMAKE_PCH_INPUT} -o ${QMAKE_PCH_OUTPUT}
-QMAKE_CFLAGS_USE_PRECOMPILE += -include ${QMAKE_PCH_OUTPUT_BASE}
-QMAKE_COMPILER_DEFINES  += __QNXNTO__
+# modifications to g++-base.conf
+QMAKE_CC               = ntoppc-gcc
+QMAKE_CXX              = ntoppc-g++
 
-QMAKE_CXX		= ntoppc-g++-4.3.3
-QMAKE_CXXFLAGS		+= $$QMAKE_CFLAGS
-QMAKE_CXXFLAGS_DEPS	+= $$QMAKE_CFLAGS_DEPS
-QMAKE_CXXFLAGS_WARN_ON	+= $$QMAKE_CFLAGS_WARN_ON
-QMAKE_CXXFLAGS_WARN_OFF	+= $$QMAKE_CFLAGS_WARN_OFF
-QMAKE_CXXFLAGS_RELEASE	+= $$QMAKE_CFLAGS_RELEASE
-QMAKE_CXXFLAGS_DEBUG	+= $$QMAKE_CFLAGS_DEBUG
-QMAKE_CXXFLAGS_SHLIB	+= $$QMAKE_CFLAGS_SHLIB
-QMAKE_CXXFLAGS_STATIC_LIB += $$QMAKE_CFLAGS_STATIC_LIB
-QMAKE_CXXFLAGS_YACC	+= $$QMAKE_CFLAGS_YACC
-QMAKE_CXXFLAGS_HIDESYMS += $$QMAKE_CFLAGS_HIDESYMS -fvisibility-inlines-hidden
-QMAKE_CXXFLAGS_PRECOMPILE += -x c++-header -c ${QMAKE_PCH_INPUT} -o ${QMAKE_PCH_OUTPUT}
-QMAKE_CXXFLAGS_USE_PRECOMPILE = $$QMAKE_CFLAGS_USE_PRECOMPILE
+QMAKE_LINK             = ntoppc-g++
+QMAKE_LINK_SHLIB       = $$QMAKE_LINK
+QMAKE_LINK_C           = ntoppc-gcc
+QMAKE_LINK_C_SHLIB     = $$QMAKE_LINK_C
 
-QMAKE_LINK		= ntoppc-g++-4.3.3
-QMAKE_LINK_SHLIB	= ntoppc-g++-4.3.3
-QMAKE_LFLAGS		+= -Wl,--no-undefined
-QMAKE_LFLAGS_RELEASE	+=
-QMAKE_LFLAGS_DEBUG	+=
-QMAKE_LFLAGS_APP	+=
-QMAKE_LFLAGS_SHLIB	+= -shared
-QMAKE_LFLAGS_PLUGIN	+= $$QMAKE_LFLAGS_SHLIB
-QMAKE_LFLAGS_SONAME	+= -Wl,-soname,
-QMAKE_LFLAGS_THREAD	+=
-QMAKE_LFLAGS_RPATH	= -Wl,-rpath,
+# modifications to linux.conf
+QMAKE_AR               = ntoppc-ar cqs
+QMAKE_STRIP            = ntoppc-strip
+QMAKE_RANLIB           = ntoppc-ranlib
+QMAKE_OBJCOPY          = ntoppc-objcopy
 
-QMAKE_PCH_OUTPUT_EXT    = .gch
-
-# -Bsymbolic-functions (ld) support
-QMAKE_LFLAGS_BSYMBOLIC_FUNC = -Wl,-Bsymbolic-functions
-QMAKE_LFLAGS_DYNAMIC_LIST = -Wl,--dynamic-list,
-
-include(../../common/unix.conf)
-
-QMAKE_CFLAGS_THREAD	= -D_REENTRANT
-QMAKE_CXXFLAGS_THREAD	= $$QMAKE_CLFAGS_THREAD
-
-QMAKE_INCDIR		=
-QMAKE_LIBDIR		=
-QMAKE_INCDIR_QT		= $$[QT_INSTALL_HEADERS]
-QMAKE_LIBDIR_QT		= $$[QT_INSTALL_LIBS]
-
-#QMAKE_LIBS		= -lunix
-QMAKE_LIBS		=
-QMAKE_LIBS_DYNLOAD	=
-QMAKE_LIBS_THREAD	=
-QMAKE_LIBS_NETWORK      += -lsocket
-QMAKE_LIBS_GUI          += -lsocket
-
-QMAKE_MOC		= $$[QT_INSTALL_BINS]/moc
-QMAKE_UIC		= $$[QT_INSTALL_BINS]/uic
-
-QMAKE_AR		= ar cqs
-QMAKE_RANLIB		=
-
-QMAKE_TAR		= tar -cf
-QMAKE_GZIP		= gzip -9f
-
-QMAKE_COPY		= cp -f
-QMAKE_COPY_FILE       = $(COPY)
-QMAKE_COPY_DIR        = $(COPY) -r
-QMAKE_MOVE		= mv -f
-QMAKE_DEL_FILE		= rm -f
-QMAKE_DEL_DIR		= rmdir
-QMAKE_CHK_DIR_EXISTS	= test -d
-QMAKE_MKDIR		= mkdir -p
-QMAKE_STRIP           = strip
-QMAKE_STRIPFLAGS_LIB += --strip-unneeded
-QMAKE_CHK_DIR_EXISTS  = test -d
-QMAKE_MKDIR           = mkdir -p
 load(qt_config)
diff --git a/mkspecs/unsupported/qws/qnx-ppc-g++/qplatformdefs.h b/mkspecs/unsupported/qws/qnx-ppc-g++/qplatformdefs.h
index 0c71265..ea04d0f 100644
--- a/mkspecs/unsupported/qws/qnx-ppc-g++/qplatformdefs.h
+++ b/mkspecs/unsupported/qws/qnx-ppc-g++/qplatformdefs.h
@@ -39,4 +39,4 @@
 **
 ****************************************************************************/
 
-#include "../../qnx-g++/qplatformdefs.h"
+#include "../../../common/qnx/qplatformdefs.h"
diff --git a/qmake/qmake.pri b/qmake/qmake.pri
index d6c5f09..87735d6 100644
--- a/qmake/qmake.pri
+++ b/qmake/qmake.pri
@@ -146,7 +146,7 @@ bootstrap { #Qt code
 
     qnx {
         CFLAGS += -fhonor-std
-        LFLAGS += -lcpp
+        LFLAGS += -lcpp -lm
     }
     DEFINES *= QT_NO_QOBJECT
 } else {
diff --git a/src/corelib/global/qglobal.h b/src/corelib/global/qglobal.h
index 32b3e6b..1f5f537 100644
--- a/src/corelib/global/qglobal.h
+++ b/src/corelib/global/qglobal.h
@@ -173,7 +173,6 @@ namespace QT_NAMESPACE {}
      RELIANT  - Reliant UNIX
      DYNIX    - DYNIX/ptx
      QNX      - QNX
-     QNX6     - QNX RTP 6.1
      LYNX     - LynxOS
      BSD4     - Any BSD 4.4 system
      UNIX     - Any UNIX BSD/SYSV system
@@ -2746,17 +2745,6 @@ QT_LICENSED_MODULE(DBus)
 #  define QT_NO_CONCURRENT_FILTER
 #endif
 
-#ifdef Q_OS_QNX
-// QNX doesn't have SYSV style shared memory. Multiprocess QWS apps,
-// shared fonts and QSystemSemaphore + QSharedMemory are not available
-#  define QT_NO_QWS_MULTIPROCESS
-#  define QT_NO_QWS_SHARE_FONTS
-#  define QT_NO_SYSTEMSEMAPHORE
-#  define QT_NO_SHAREDMEMORY
-// QNX currently doesn't support forking in a thread, so disable QProcess
-#  define QT_NO_PROCESS
-#endif
-
 #if defined (__ELF__)
 #  if defined (Q_OS_LINUX) || defined (Q_OS_SOLARIS) || defined (Q_OS_FREEBSD) || defined (Q_OS_OPENBSD) || defined (Q_OS_IRIX)
 #    define Q_OF_ELF
diff --git a/src/corelib/io/qprocess.cpp b/src/corelib/io/qprocess.cpp
index 70a70c2..4b689c5 100644
--- a/src/corelib/io/qprocess.cpp
+++ b/src/corelib/io/qprocess.cpp
@@ -751,12 +751,16 @@ QProcessPrivate::QProcessPrivate()
     sequenceNumber = 0;
     exitCode = 0;
     exitStatus = QProcess::NormalExit;
+#ifndef Q_OS_QNX
     startupSocketNotifier = 0;
+#endif
     deathNotifier = 0;
     notifier = 0;
     pipeWriter = 0;
+#ifndef Q_OS_QNX
     childStartedPipe[0] = INVALID_Q_PIPE;
     childStartedPipe[1] = INVALID_Q_PIPE;
+#endif
     deathPipe[0] = INVALID_Q_PIPE;
     deathPipe[1] = INVALID_Q_PIPE;
     exitCode = 0;
@@ -825,11 +829,13 @@ void QProcessPrivate::cleanup()
         qDeleteInEventHandler(stdinChannel.notifier);
         stdinChannel.notifier = 0;
     }
+#ifndef Q_OS_QNX
     if (startupSocketNotifier) {
         startupSocketNotifier->setEnabled(false);
         qDeleteInEventHandler(startupSocketNotifier);
         startupSocketNotifier = 0;
     }
+#endif
     if (deathNotifier) {
         deathNotifier->setEnabled(false);
         qDeleteInEventHandler(deathNotifier);
@@ -842,7 +848,9 @@ void QProcessPrivate::cleanup()
     destroyPipe(stdoutChannel.pipe);
     destroyPipe(stderrChannel.pipe);
     destroyPipe(stdinChannel.pipe);
+#ifndef Q_OS_QNX
     destroyPipe(childStartedPipe);
+#endif
     destroyPipe(deathPipe);
 #ifdef Q_OS_UNIX
     serial = 0;
@@ -1077,8 +1085,10 @@ bool QProcessPrivate::_q_startupNotification()
     qDebug("QProcessPrivate::startupNotification()");
 #endif
 
+#ifndef Q_OS_QNX
     if (startupSocketNotifier)
         startupSocketNotifier->setEnabled(false);
+#endif
     if (processStarted()) {
         q->setProcessState(QProcess::Running);
         emit q->started();
diff --git a/src/corelib/io/qprocess_p.h b/src/corelib/io/qprocess_p.h
index 9adb331..f24a7bc 100644
--- a/src/corelib/io/qprocess_p.h
+++ b/src/corelib/io/qprocess_p.h
@@ -288,11 +288,15 @@ public:
     QRingBuffer errorReadBuffer;
     QRingBuffer writeBuffer;
 
+#ifndef Q_OS_QNX
     Q_PIPE childStartedPipe[2];
+#endif
     Q_PIPE deathPipe[2];
     void destroyPipe(Q_PIPE pipe[2]);
 
+#ifndef Q_OS_QNX
     QSocketNotifier *startupSocketNotifier;
+#endif
     QSocketNotifier *deathNotifier;
 
     // the wonderful windows notifier
@@ -301,8 +305,10 @@ public:
     QWinEventNotifier *processFinishedNotifier;
 
     void startProcess();
-#if defined(Q_OS_UNIX) && !defined(Q_OS_SYMBIAN)
+#if defined(Q_OS_UNIX) && !defined(Q_OS_SYMBIAN) && !defined(Q_OS_QNX)
     void execChild(const char *workingDirectory, char **path, char **argv, char **envp);
+#elif defined(Q_OS_QNX)
+    pid_t spawnChild(const char *workingDirectory, char **argv, char **envp);
 #endif
     bool processStarted();
     void terminateProcess();
diff --git a/src/corelib/io/qprocess_unix.cpp b/src/corelib/io/qprocess_unix.cpp
index 07e3087..725e4c5 100644
--- a/src/corelib/io/qprocess_unix.cpp
+++ b/src/corelib/io/qprocess_unix.cpp
@@ -105,6 +105,10 @@ QT_END_NAMESPACE
 #include <errno.h>
 #include <stdlib.h>
 #include <string.h>
+#ifdef Q_OS_QNX
+#  include <spawn.h>
+#endif
+
 
 QT_BEGIN_NAMESPACE
 
@@ -521,16 +525,6 @@ static char **_q_dupEnvironment(const QProcessEnvironmentPrivate::Hash &environm
     return envp;
 }
 
-// under QNX RTOS we have to use vfork() when multithreading
-inline pid_t qt_fork()
-{
-#if defined(Q_OS_QNX)
-    return vfork();
-#else
-    return fork();
-#endif
-}
-
 #ifdef Q_OS_MAC
 Q_GLOBAL_STATIC(QMutex, cfbundleMutex);
 #endif
@@ -550,15 +544,18 @@ void QProcessPrivate::startProcess()
         !createChannel(stdoutChannel) ||
         !createChannel(stderrChannel))
         return;
+#if !defined(Q_OS_QNX)
     qt_create_pipe(childStartedPipe);
+#endif
     qt_create_pipe(deathPipe);
 
     if (threadData->eventDispatcher) {
+#if !defined(Q_OS_QNX)
         startupSocketNotifier = new QSocketNotifier(childStartedPipe[0],
                                                     QSocketNotifier::Read, q);
         QObject::connect(startupSocketNotifier, SIGNAL(activated(int)),
                          q, SLOT(_q_startupNotification()));
-
+#endif
         deathNotifier = new QSocketNotifier(deathPipe[0],
                                             QSocketNotifier::Read, q);
         QObject::connect(deathNotifier, SIGNAL(activated(int)),
@@ -650,7 +647,11 @@ void QProcessPrivate::startProcess()
 
     // Start the process manager, and fork off the child process.
     processManager()->lock();
-    pid_t childPid = qt_fork();
+#if defined(Q_OS_QNX)
+    pid_t childPid = spawnChild(workingDirPtr, argv, envp);
+#else
+    pid_t childPid = fork();
+#endif
     int lastForkErrno = errno;
     if (childPid != 0) {
         // Clean up duplicated memory.
@@ -668,7 +669,7 @@ void QProcessPrivate::startProcess()
     if (childPid < 0) {
         // Cleanup, report error and return
 #if defined (QPROCESS_DEBUG)
-        qDebug("qt_fork failed: %s", qPrintable(qt_error_string(lastForkErrno)));
+        qDebug("fork() failed: %s", qPrintable(qt_error_string(lastForkErrno)));
 #endif
         processManager()->unlock();
         q->setProcessState(QProcess::NotRunning);
@@ -679,11 +680,13 @@ void QProcessPrivate::startProcess()
         return;
     }
 
+#if !defined(Q_OS_QNX)
     // Start the child.
     if (childPid == 0) {
         execChild(workingDirPtr, path, argv, envp);
         ::_exit(-1);
     }
+#endif
 
     // Register the child. In the mean time, we can get a SIGCHLD, so we need
     // to keep the lock held to avoid a race to catch the child.
@@ -694,14 +697,15 @@ void QProcessPrivate::startProcess()
     // parent
     // close the ends we don't use and make all pipes non-blocking
     ::fcntl(deathPipe[0], F_SETFL, ::fcntl(deathPipe[0], F_GETFL) | O_NONBLOCK);
+#if !defined(Q_OS_QNX)
     qt_safe_close(childStartedPipe[1]);
     childStartedPipe[1] = -1;
+#endif
 
     if (stdinChannel.pipe[0] != -1) {
         qt_safe_close(stdinChannel.pipe[0]);
         stdinChannel.pipe[0] = -1;
     }
-
     if (stdinChannel.pipe[1] != -1)
         ::fcntl(stdinChannel.pipe[1], F_SETFL, ::fcntl(stdinChannel.pipe[1], F_GETFL) | O_NONBLOCK);
 
@@ -709,7 +713,6 @@ void QProcessPrivate::startProcess()
         qt_safe_close(stdoutChannel.pipe[1]);
         stdoutChannel.pipe[1] = -1;
     }
-
     if (stdoutChannel.pipe[0] != -1)
         ::fcntl(stdoutChannel.pipe[0], F_SETFL, ::fcntl(stdoutChannel.pipe[0], F_GETFL) | O_NONBLOCK);
 
@@ -721,6 +724,7 @@ void QProcessPrivate::startProcess()
         ::fcntl(stderrChannel.pipe[0], F_SETFL, ::fcntl(stderrChannel.pipe[0], F_GETFL) | O_NONBLOCK);
 }
 
+#if !defined(Q_OS_QNX)
 void QProcessPrivate::execChild(const char *workingDir, char **path, char **argv, char **envp)
 {
     ::signal(SIGPIPE, SIG_DFL);         // reset the signal that we ignored
@@ -728,17 +732,17 @@ void QProcessPrivate::execChild(const char *workingDir, char **path, char **argv
     Q_Q(QProcess);
 
     // copy the stdin socket (without closing on exec)
-    qt_safe_dup2(stdinChannel.pipe[0], fileno(stdin), 0);
+    qt_safe_dup2(stdinChannel.pipe[0], QT_FILENO(stdin), 0);
 
     // copy the stdout and stderr if asked to
     if (processChannelMode != QProcess::ForwardedChannels) {
-        qt_safe_dup2(stdoutChannel.pipe[1], fileno(stdout), 0);
+        qt_safe_dup2(stdoutChannel.pipe[1], QT_FILENO(stdout), 0);
 
         // merge stdout and stderr if asked to
         if (processChannelMode == QProcess::MergedChannels) {
-            qt_safe_dup2(fileno(stdout), fileno(stderr), 0);
+            qt_safe_dup2(QT_FILENO(stdout), QT_FILENO(stderr), 0);
         } else {
-            qt_safe_dup2(stderrChannel.pipe[1], fileno(stderr), 0);
+            qt_safe_dup2(stderrChannel.pipe[1], QT_FILENO(stderr), 0);
         }
     }
 
@@ -807,6 +811,87 @@ bool QProcessPrivate::processStarted()
     return i <= 0;
 }
 
+#else // Q_OS_QNX
+
+static pid_t doSpawn(int fd_count, int fd_map[], char **argv, char **envp, bool spawn_detached)
+{
+    // A multi threaded QNX Process can't fork so we call spawn() instead.
+
+    struct inheritance inherit;
+    memset(&inherit, 0, sizeof(inherit));
+    inherit.flags |= SPAWN_SETSID;
+    inherit.flags |= SPAWN_CHECK_SCRIPT;
+    if (spawn_detached)
+        inherit.flags |= SPAWN_NOZOMBIE;
+    inherit.flags |= SPAWN_SETSIGDEF;
+    sigaddset(&inherit.sigdefault, SIGPIPE); // reset the signal that we ignored
+
+    pid_t childPid;
+    EINTR_LOOP(childPid, ::spawn(argv[0], fd_count, fd_map, &inherit, argv, envp));
+    if (childPid == -1) {
+        inherit.flags |= SPAWN_SEARCH_PATH;
+        EINTR_LOOP(childPid, ::spawn(argv[0], fd_count, fd_map, &inherit, argv, envp));
+    }
+
+    return childPid;
+}
+
+pid_t QProcessPrivate::spawnChild(const char *workingDir, char **argv, char **envp)
+{
+    Q_Q(QProcess);
+
+    const int fd_count = 3;
+    int fd_map[fd_count];
+    switch (processChannelMode) {
+    case QProcess::ForwardedChannels:
+        fd_map[0] = stdinChannel.pipe[0];
+        fd_map[1] = QT_FILENO(stdout);
+        fd_map[2] = QT_FILENO(stderr);
+        break;
+    case QProcess::MergedChannels:
+        fd_map[0] = stdinChannel.pipe[0];
+        fd_map[1] = stdoutChannel.pipe[1];
+        fd_map[2] = stdoutChannel.pipe[1];
+        break;
+    case QProcess::SeparateChannels:
+        fd_map[0] = stdinChannel.pipe[0];
+        fd_map[1] = stdoutChannel.pipe[1];
+        fd_map[2] = stderrChannel.pipe[1];
+        break;
+    }
+
+    // enter the working directory
+    char *oldWorkingDir = 0;
+    char buff[PATH_MAX + 1];
+    if (workingDir) {
+        oldWorkingDir = QT_GETCWD(buff, PATH_MAX + 1);
+        QT_CHDIR(workingDir);
+    }
+
+    pid_t childPid = doSpawn(fd_count, fd_map, argv, envp, false);
+
+    if (oldWorkingDir)
+        QT_CHDIR(oldWorkingDir);
+
+    if (childPid != -1) {
+        q->setProcessState(QProcess::Running);
+        QMetaObject::invokeMethod(q, "_q_startupNotification", Qt::QueuedConnection);
+    }
+
+    return childPid;
+}
+
+bool QProcessPrivate::processStarted()
+{
+    return processState == QProcess::Running;
+}
+
+bool QProcessPrivate::waitForStarted(int /*msecs*/)
+{
+    return processStarted();
+}
+#endif // Q_OS_QNX
+
 qint64 QProcessPrivate::bytesAvailableFromStdout() const
 {
     int nbytes = 0;
@@ -924,6 +1009,7 @@ static int qt_timeout_value(int msecs, int elapsed)
     return timeout < 0 ? 0 : timeout;
 }
 
+#if !defined(Q_OS_QNX)
 bool QProcessPrivate::waitForStarted(int msecs)
 {
     Q_Q(QProcess);
@@ -951,6 +1037,7 @@ bool QProcessPrivate::waitForStarted(int msecs)
 #endif
     return startedEmitted;
 }
+#endif // Q_OS_QNX
 
 bool QProcessPrivate::waitForReadyRead(int msecs)
 {
@@ -972,8 +1059,10 @@ bool QProcessPrivate::waitForReadyRead(int msecs)
         int nfds = deathPipe[0];
         FD_SET(deathPipe[0], &fdread);
 
+#if !defined(Q_OS_QNX)
         if (processState == QProcess::Starting)
             add_fd(nfds, childStartedPipe[0], &fdread);
+#endif
 
         if (stdoutChannel.pipe[0] != -1)
             add_fd(nfds, stdoutChannel.pipe[0], &fdread);
@@ -994,10 +1083,12 @@ bool QProcessPrivate::waitForReadyRead(int msecs)
 	    return false;
 	}
 
+#if !defined(Q_OS_QNX)
 	if (childStartedPipe[0] != -1 && FD_ISSET(childStartedPipe[0], &fdread)) {
             if (!_q_startupNotification())
                 return false;
 	}
+#endif
 
         bool readyReadEmitted = false;
 	if (stdoutChannel.pipe[0] != -1 && FD_ISSET(stdoutChannel.pipe[0], &fdread)) {
@@ -1044,8 +1135,10 @@ bool QProcessPrivate::waitForBytesWritten(int msecs)
         int nfds = deathPipe[0];
         FD_SET(deathPipe[0], &fdread);
 
+#if !defined(Q_OS_QNX)
         if (processState == QProcess::Starting)
             add_fd(nfds, childStartedPipe[0], &fdread);
+#endif
 
         if (stdoutChannel.pipe[0] != -1)
             add_fd(nfds, stdoutChannel.pipe[0], &fdread);
@@ -1068,10 +1161,12 @@ bool QProcessPrivate::waitForBytesWritten(int msecs)
 	    return false;
 	}
 
+#if !defined(Q_OS_QNX)
 	if (childStartedPipe[0] != -1 && FD_ISSET(childStartedPipe[0], &fdread)) {
 	    if (!_q_startupNotification())
 		return false;
 	}
+#endif
 
 	if (stdinChannel.pipe[1] != -1 && FD_ISSET(stdinChannel.pipe[1], &fdwrite))
 	    return _q_canWrite();
@@ -1109,8 +1204,10 @@ bool QProcessPrivate::waitForFinished(int msecs)
         FD_ZERO(&fdread);
         FD_ZERO(&fdwrite);
 
+#if !defined(Q_OS_QNX)
         if (processState == QProcess::Starting)
             add_fd(nfds, childStartedPipe[0], &fdread);
+#endif
 
         if (stdoutChannel.pipe[0] != -1)
             add_fd(nfds, stdoutChannel.pipe[0], &fdread);
@@ -1134,10 +1231,12 @@ bool QProcessPrivate::waitForFinished(int msecs)
 	    return false;
 	}
 
+#if !defined(Q_OS_QNX)
 	if (childStartedPipe[0] != -1 && FD_ISSET(childStartedPipe[0], &fdread)) {
 	    if (!_q_startupNotification())
 		return false;
 	}
+#endif
 	if (stdinChannel.pipe[1] != -1 && FD_ISSET(stdinChannel.pipe[1], &fdwrite))
 	    _q_canWrite();
 
@@ -1199,6 +1298,47 @@ void QProcessPrivate::_q_notified()
 {
 }
 
+#if defined(Q_OS_QNX)
+bool QProcessPrivate::startDetached(const QString &program, const QStringList &arguments, const QString &workingDirectory, qint64 *pid)
+{
+    QByteArray encodedWorkingDirectory = QFile::encodeName(workingDirectory);
+
+    // enter the working directory
+    char *oldWorkingDir = 0;
+    char buff[PATH_MAX + 1];
+    if (!encodedWorkingDirectory.isEmpty()) {
+        oldWorkingDir = QT_GETCWD(buff, PATH_MAX + 1);
+        QT_CHDIR(encodedWorkingDirectory.constData());
+    }
+
+    const int fd_count = 3;
+    int fd_map[fd_count] = { QT_FILENO(stdin), QT_FILENO(stdout), QT_FILENO(stderr) };
+
+    QList<QByteArray> enc_args;
+    enc_args.append(QFile::encodeName(program));
+    for (int i = 0; i < arguments.size(); ++i)
+        enc_args.append(arguments.at(i).toLocal8Bit());
+
+    const int argc = enc_args.size();
+    QScopedArrayPointer<char*> raw_argv(new char*[argc + 1]);
+    for (int i = 0; i < argc; ++i)
+        raw_argv[i] = const_cast<char *>(enc_args.at(i).data());
+    raw_argv[argc] = 0;
+
+    char **envp = 0; // inherit environment
+
+    pid_t childPid = doSpawn(fd_count, fd_map, raw_argv.data(), envp, true);
+    if (pid && childPid != -1)
+        *pid = childPid;
+
+    if (oldWorkingDir)
+        QT_CHDIR(oldWorkingDir);
+
+    return childPid != -1;
+}
+
+#else
+
 bool QProcessPrivate::startDetached(const QString &program, const QStringList &arguments, const QString &workingDirectory, qint64 *pid)
 {
     processManager()->start();
@@ -1212,7 +1352,7 @@ bool QProcessPrivate::startDetached(const QString &program, const QStringList &a
     int pidPipe[2];
     qt_safe_pipe(pidPipe);
 
-    pid_t childPid = qt_fork();
+    pid_t childPid = fork();
     if (childPid == 0) {
         struct sigaction noaction;
         memset(&noaction, 0, sizeof(noaction));
@@ -1224,7 +1364,7 @@ bool QProcessPrivate::startDetached(const QString &program, const QStringList &a
         qt_safe_close(startedPipe[0]);
         qt_safe_close(pidPipe[0]);
 
-        pid_t doubleForkPid = qt_fork();
+        pid_t doubleForkPid = fork();
         if (doubleForkPid == 0) {
             qt_safe_close(pidPipe[1]);
 
@@ -1312,6 +1452,7 @@ bool QProcessPrivate::startDetached(const QString &program, const QStringList &a
     qt_safe_close(pidPipe[0]);
     return success;
 }
+#endif // Q_OS_QNX
 
 void QProcessPrivate::initializeProcessManager()
 {
diff --git a/src/corelib/kernel/qcoreapplication.cpp b/src/corelib/kernel/qcoreapplication.cpp
index 7694a0f..dd46bc5 100644
--- a/src/corelib/kernel/qcoreapplication.cpp
+++ b/src/corelib/kernel/qcoreapplication.cpp
@@ -98,6 +98,12 @@
 #  include <taskLib.h>
 #endif
 
+#ifdef Q_OS_QNX
+#  include <sys/neutrino.h>
+#  include <pthread.h>
+#  include <sched.h>
+#endif
+
 QT_BEGIN_NAMESPACE
 
 class QMutexUnlocker
@@ -353,6 +359,22 @@ QCoreApplicationPrivate::QCoreApplicationPrivate(int &aargc, char **aargv, uint
     qt_application_thread_id = QThread::currentThreadId();
 #endif
 
+#ifdef Q_OS_QNX
+    // make the kernel attempt to emulate an instruction with a misaligned access
+    // if the attempt fails, it faults with a SIGBUS
+    int tv = -1;
+    ThreadCtl(_NTO_TCTL_ALIGN_FAULT, &tv);
+
+    // without Round Robin drawn intensive apps will hog the cpu
+    // and make the system appear frozen
+    int sched_policy;
+    sched_param param;
+    if (pthread_getschedparam(0, &sched_policy, &param) == 0 && sched_policy != SCHED_RR) {
+        sched_policy = SCHED_RR;
+        pthread_setschedparam(0, sched_policy, &param);
+    }
+#endif
+
     // note: this call to QThread::currentThread() may end up setting theMainThread!
     if (QThread::currentThread() != theMainThread)
         qWarning("WARNING: QApplication was not created in the main() thread.");
diff --git a/src/corelib/kernel/qsharedmemory.cpp b/src/corelib/kernel/qsharedmemory.cpp
index 2882279..371974c 100644
--- a/src/corelib/kernel/qsharedmemory.cpp
+++ b/src/corelib/kernel/qsharedmemory.cpp
@@ -80,6 +80,8 @@ QSharedMemoryPrivate::makePlatformSafeKey(const QString &key,
     return result;
 #elif defined(Q_OS_SYMBIAN)
     return result.left(KMaxKernelName);
+#elif defined(QT_POSIX_IPC)
+    return QLatin1Char('/') + result;
 #else
     return QDir::tempPath() + QLatin1Char('/') + result;
 #endif
@@ -117,6 +119,9 @@ QSharedMemoryPrivate::makePlatformSafeKey(const QString &key,
   process crashes without running the QSharedMemory destructor, the
   shared memory segment survives the crash.
 
+  \o QNX: Due to possible race conditions in the POSIX IPC implementation, create()
+  should be called prior to any attach() calls (even across multiple threads).
+
   \o HP-UX: Only one attach to a shared memory segment is allowed per
   process. This means that QSharedMemory should not be used across
   multiple threads in the same process in HP-UX.
diff --git a/src/corelib/kernel/qsharedmemory_p.h b/src/corelib/kernel/qsharedmemory_p.h
index 21b8612..780e52e 100644
--- a/src/corelib/kernel/qsharedmemory_p.h
+++ b/src/corelib/kernel/qsharedmemory_p.h
@@ -135,6 +135,8 @@ public:
             const QString &prefix = QLatin1String("qipc_sharedmemory_"));
 #ifdef Q_OS_WIN
     HANDLE handle();
+#elif defined(QT_POSIX_IPC)
+    int handle();
 #else
     key_t handle();
 #endif
@@ -166,6 +168,8 @@ private:
     HANDLE hand;
 #elif defined(Q_OS_SYMBIAN)
     RChunk chunk;
+#elif defined(QT_POSIX_IPC)
+    int hand;
 #else
     key_t unix_key;
 #endif
diff --git a/src/corelib/kernel/qsharedmemory_unix.cpp b/src/corelib/kernel/qsharedmemory_unix.cpp
index e991ce9..a086acd 100644
--- a/src/corelib/kernel/qsharedmemory_unix.cpp
+++ b/src/corelib/kernel/qsharedmemory_unix.cpp
@@ -50,8 +50,12 @@
 #ifndef QT_NO_SHAREDMEMORY
 #include <sys/types.h>
 #include <sys/ipc.h>
+#ifndef QT_POSIX_IPC
 #include <sys/shm.h>
+#else
+#include <sys/mman.h>
 #include <sys/stat.h>
+#endif
 #include <fcntl.h>
 #include <unistd.h>
 #endif // QT_NO_SHAREDMEMORY
@@ -70,7 +74,11 @@ QSharedMemoryPrivate::QSharedMemoryPrivate()
 #ifndef QT_NO_SYSTEMSEMAPHORE
       systemSemaphore(QString()), lockedByMe(false),
 #endif
+#ifndef QT_POSIX_IPC
       unix_key(0)
+#else
+      hand(0)
+#endif
 {
 }
 
@@ -91,12 +99,18 @@ void QSharedMemoryPrivate::setErrorString(const QString &function)
         errorString = QSharedMemory::tr("%1: doesn't exist").arg(function);
         error = QSharedMemory::NotFound;
         break;
+    case EAGAIN:
     case EMFILE:
+    case ENFILE:
     case ENOMEM:
     case ENOSPC:
         errorString = QSharedMemory::tr("%1: out of resources").arg(function);
         error = QSharedMemory::OutOfResources;
         break;
+    case EOVERFLOW:
+        errorString = QSharedMemory::tr("%1: invalid size").arg(function);
+        error = QSharedMemory::InvalidSize;
+        break;
     default:
         errorString = QSharedMemory::tr("%1: unknown error %2").arg(function).arg(errno);
         error = QSharedMemory::UnknownError;
@@ -112,6 +126,7 @@ void QSharedMemoryPrivate::setErrorString(const QString &function)
 
     If not already made create the handle used for accessing the shared memory.
 */
+#ifndef QT_POSIX_IPC
 key_t QSharedMemoryPrivate::handle()
 {
     // already made
@@ -140,6 +155,20 @@ key_t QSharedMemoryPrivate::handle()
     }
     return unix_key;
 }
+#else
+int QSharedMemoryPrivate::handle()
+{
+    // don't allow making handles on empty keys
+    QString safeKey = makePlatformSafeKey(key);
+    if (safeKey.isEmpty()) {
+        errorString = QSharedMemory::tr("%1: key is empty").arg(QLatin1String("QSharedMemory::handle"));
+        error = QSharedMemory::KeyError;
+        return 0;
+    }
+
+    return 1;
+}
+#endif // QT_POSIX_IPC
 
 #endif // QT_NO_SHAREDMEMORY
 
@@ -155,6 +184,7 @@ key_t QSharedMemoryPrivate::handle()
 */
 int QSharedMemoryPrivate::createUnixKeyFile(const QString &fileName)
 {
+#ifndef QT_POSIX_IPC
     if (QFile::exists(fileName))
         return 0;
 
@@ -168,6 +198,11 @@ int QSharedMemoryPrivate::createUnixKeyFile(const QString &fileName)
         qt_safe_close(fd);
     }
     return 1;
+#else
+    Q_UNUSED(fileName);
+    // nothing to do
+    return -1;
+#endif
 }
 #endif // QT_NO_SHAREDMEMORY && QT_NO_SYSTEMSEMAPHORE
 
@@ -175,11 +210,17 @@ int QSharedMemoryPrivate::createUnixKeyFile(const QString &fileName)
 
 void QSharedMemoryPrivate::cleanHandle()
 {
+#ifndef QT_POSIX_IPC
     unix_key = 0;
+#else
+    qt_safe_close(hand);
+    hand = 0;
+#endif
 }
 
 bool QSharedMemoryPrivate::create(int size)
 {
+#ifndef QT_POSIX_IPC
     // build file if needed
     int built = createUnixKeyFile(nativeKey);
     if (built == -1) {
@@ -211,12 +252,46 @@ bool QSharedMemoryPrivate::create(int size)
             QFile::remove(nativeKey);
         return false;
     }
+#else
+    if (!handle())
+        return false;
+
+    QByteArray shmName = QFile::encodeName(makePlatformSafeKey(key));
+
+    int fd;
+    EINTR_LOOP(fd, shm_open(shmName.constData(), O_RDWR | O_CREAT | O_EXCL, 0666));
+    if (fd == -1) {
+        QString function = QLatin1String("QSharedMemory::create");
+        switch (errno) {
+        case ENAMETOOLONG:
+        case EINVAL:
+            errorString = QSharedMemory::tr("%1: bad name").arg(function);
+            error = QSharedMemory::KeyError;
+            break;
+        default:
+            setErrorString(function);
+        }
+        return false;
+    }
+
+    // the size may only be set once; ignore errors
+    int ret;
+    EINTR_LOOP(ret, ftruncate(fd, size));
+    if (ret == -1) {
+        setErrorString(QLatin1String("QSharedMemory::create (ftruncate)"));
+        qt_safe_close(fd);
+        return false;
+    }
+
+    qt_safe_close(fd);
+#endif // QT_POSIX_IPC
 
     return true;
 }
 
 bool QSharedMemoryPrivate::attach(QSharedMemory::AccessMode mode)
 {
+#ifndef QT_POSIX_IPC
     // grab the shared memory segment id
     int id = shmget(unix_key, 0, (mode == QSharedMemory::ReadOnly ? 0444 : 0660));
     if (-1 == id) {
@@ -240,12 +315,55 @@ bool QSharedMemoryPrivate::attach(QSharedMemory::AccessMode mode)
         setErrorString(QLatin1String("QSharedMemory::attach (shmctl)"));
         return false;
     }
+#else
+    QByteArray shmName = QFile::encodeName(makePlatformSafeKey(key));
+
+    int oflag = (mode == QSharedMemory::ReadOnly ? O_RDONLY : O_RDWR);
+    mode_t omode = (mode == QSharedMemory::ReadOnly ? 0444 : 0660);
+
+    EINTR_LOOP(hand, shm_open(shmName.constData(), oflag, omode));
+    if (hand == -1) {
+        QString function = QLatin1String("QSharedMemory::attach (shm_open)");
+        switch (errno) {
+        case ENAMETOOLONG:
+        case EINVAL:
+            errorString = QSharedMemory::tr("%1: bad name").arg(function);
+            error = QSharedMemory::KeyError;
+            break;
+        default:
+            setErrorString(function);
+        }
+        hand = 0;
+        return false;
+    }
+
+    // grab the size
+    QT_STATBUF st;
+    if (QT_FSTAT(hand, &st) == -1) {
+        setErrorString(QLatin1String("QSharedMemory::attach (fstat)"));
+        cleanHandle();
+        return false;
+    }
+    size = st.st_size;
+
+    // grab the memory
+    int mprot = (mode == QSharedMemory::ReadOnly ? PROT_READ : PROT_READ | PROT_WRITE);
+    memory = mmap(0, size, mprot, MAP_SHARED, hand, 0);
+    if (memory == MAP_FAILED || !memory) {
+        setErrorString(QLatin1String("QSharedMemory::attach (mmap)"));
+        cleanHandle();
+        memory = 0;
+        size = 0;
+        return false;
+    }
+#endif // QT_POSIX_IPC
 
     return true;
 }
 
 bool QSharedMemoryPrivate::detach()
 {
+#ifndef QT_POSIX_IPC
     // detach from the memory segment
     if (-1 == shmdt(memory)) {
         QString function = QLatin1String("QSharedMemory::detach");
@@ -292,6 +410,31 @@ bool QSharedMemoryPrivate::detach()
         if (!QFile::remove(nativeKey))
             return false;
     }
+#else
+    // detach from the memory segment
+    if (munmap(memory, size) == -1) {
+        setErrorString(QLatin1String("QSharedMemory::detach (munmap)"));
+        return false;
+    }
+    memory = 0;
+    size = 0;
+
+    // get the number of current attachments
+    int shm_nattch = 0;
+    QT_STATBUF st;
+    if (QT_FSTAT(hand, &st) == 0) {
+        // subtract 2 from linkcount: one for our own open and one for the dir entry
+        shm_nattch = st.st_nlink - 2;
+    }
+    cleanHandle();
+    // if there are no attachments then unlink the shared memory
+    if (shm_nattch == 0) {
+        QByteArray shmName = QFile::encodeName(makePlatformSafeKey(key));
+        if (shm_unlink(shmName.constData()) == -1 && errno != ENOENT)
+            setErrorString(QLatin1String("QSharedMemory::detach (shm_unlink)"));
+    }
+#endif // QT_POSIX_IPC
+
     return true;
 }
 
diff --git a/src/corelib/kernel/qsystemsemaphore.cpp b/src/corelib/kernel/qsystemsemaphore.cpp
index 98ee6f4..ae30348 100644
--- a/src/corelib/kernel/qsystemsemaphore.cpp
+++ b/src/corelib/kernel/qsystemsemaphore.cpp
@@ -151,6 +151,11 @@ QT_BEGIN_NAMESPACE
   creates a new semaphore for that key and sets its resource count to
   \a initialValue.
 
+  In QNX, if the \a mode is \l {QSystemSemaphore::} {Create} and the
+  system already has a semaphore identified by \a key, that semaphore
+  will be deleted and the new one will be created for that key with
+  a resource count set to \a initialValue.
+
   In Windows and in Symbian, \a mode is ignored, and the system always tries to
   create a semaphore for the specified \a key. If the system does not
   already have a semaphore identified as \a key, it creates the
@@ -234,7 +239,7 @@ void QSystemSemaphore::setKey(const QString &key, int initialValue, AccessMode m
         return;
     d->error = NoError;
     d->errorString = QString();
-#if !defined(Q_OS_WIN) && !defined(Q_OS_SYMBIAN)
+#if !defined(Q_OS_WIN) && !defined(Q_OS_SYMBIAN) && !defined(QT_POSIX_IPC)
     // optimization to not destroy/create the file & semaphore
     if (key == d->key && mode == Create && d->createdSemaphore && d->createdFile) {
         d->initialValue = initialValue;
diff --git a/src/corelib/kernel/qsystemsemaphore_p.h b/src/corelib/kernel/qsystemsemaphore_p.h
index 3e5f737..d84d416 100644
--- a/src/corelib/kernel/qsystemsemaphore_p.h
+++ b/src/corelib/kernel/qsystemsemaphore_p.h
@@ -61,6 +61,9 @@
 #ifndef Q_OS_WINCE
 #  include <sys/types.h>
 #endif
+#ifdef QT_POSIX_IPC
+#  include <semaphore.h>
+#endif
 
 #ifdef Q_OS_SYMBIAN
 class RSemaphore;
@@ -84,6 +87,9 @@ public:
 #elif defined(Q_OS_SYMBIAN)
     int handle(QSystemSemaphore::AccessMode mode = QSystemSemaphore::Open);
     void setErrorString(const QString &function,int err = 0);
+#elif defined(QT_POSIX_IPC)
+    bool handle(QSystemSemaphore::AccessMode mode = QSystemSemaphore::Open);
+    void setErrorString(const QString &function);
 #else
     key_t handle(QSystemSemaphore::AccessMode mode = QSystemSemaphore::Open);
     void setErrorString(const QString &function);
@@ -99,6 +105,9 @@ public:
     HANDLE semaphoreLock;
 #elif defined(Q_OS_SYMBIAN)
     RSemaphore semaphore;
+#elif defined(QT_POSIX_IPC)
+    sem_t *semaphore;
+    bool createdSemaphore;
 #else
     key_t unix_key;
     int semaphore;
diff --git a/src/corelib/kernel/qsystemsemaphore_unix.cpp b/src/corelib/kernel/qsystemsemaphore_unix.cpp
index 704afaf..e060eb2 100644
--- a/src/corelib/kernel/qsystemsemaphore_unix.cpp
+++ b/src/corelib/kernel/qsystemsemaphore_unix.cpp
@@ -50,7 +50,9 @@
 
 #include <sys/types.h>
 #include <sys/ipc.h>
+#ifndef QT_POSIX_IPC
 #include <sys/sem.h>
+#endif
 #include <fcntl.h>
 #include <errno.h>
 
@@ -67,7 +69,11 @@
 QT_BEGIN_NAMESPACE
 
 QSystemSemaphorePrivate::QSystemSemaphorePrivate() :
+#ifndef QT_POSIX_IPC
     unix_key(-1), semaphore(-1), createdFile(false),
+#else
+    semaphore(SEM_FAILED),
+#endif
     createdSemaphore(false), error(QSystemSemaphore::NoError)
 {
 }
@@ -90,10 +96,18 @@ void QSystemSemaphorePrivate::setErrorString(const QString &function)
         error = QSystemSemaphore::NotFound;
         break;
     case ERANGE:
+    case ENOMEM:
     case ENOSPC:
+    case EMFILE:
+    case ENFILE:
+    case EOVERFLOW:
         errorString = QCoreApplication::translate("QSystemSemaphore", "%1: out of resources").arg(function);
         error = QSystemSemaphore::OutOfResources;
         break;
+    case ENAMETOOLONG:
+        errorString = QCoreApplication::translate("QSystemSemaphore", "%1: name error").arg(function);
+        error = QSystemSemaphore::KeyError;
+        break;
     default:
         errorString = QCoreApplication::translate("QSystemSemaphore", "%1: unknown error %2").arg(function).arg(errno);
         error = QSystemSemaphore::UnknownError;
@@ -109,6 +123,7 @@ void QSystemSemaphorePrivate::setErrorString(const QString &function)
 
     Initialise the semaphore
 */
+#ifndef QT_POSIX_IPC
 key_t QSystemSemaphorePrivate::handle(QSystemSemaphore::AccessMode mode)
 {
     if (-1 != unix_key)
@@ -170,6 +185,54 @@ key_t QSystemSemaphorePrivate::handle(QSystemSemaphore::AccessMode mode)
 
     return unix_key;
 }
+#else
+bool QSystemSemaphorePrivate::handle(QSystemSemaphore::AccessMode mode)
+{
+    if (semaphore != SEM_FAILED)
+        return true;  // we already have a semaphore
+
+    if (fileName.isEmpty()) {
+        errorString = QCoreApplication::tr("%1: key is empty", "QSystemSemaphore").arg(QLatin1String("QSystemSemaphore::handle"));
+        error = QSystemSemaphore::KeyError;
+        return false;
+    }
+
+    QByteArray semName = QFile::encodeName(fileName);
+
+    // Always try with O_EXCL so we know whether we created the semaphore.
+    int oflag = O_CREAT | O_EXCL;
+    for (int tryNum = 0, maxTries = 1; tryNum < maxTries; ++tryNum) {
+        do {
+            semaphore = sem_open(semName.constData(), oflag, 0666, initialValue);
+        } while (semaphore == SEM_FAILED && errno == EINTR);
+        if (semaphore == SEM_FAILED && errno == EEXIST) {
+            if (mode == QSystemSemaphore::Create) {
+                if (sem_unlink(semName.constData()) == -1 && errno != ENOENT) {
+                    setErrorString(QLatin1String("QSystemSemaphore::handle (sem_unlink)"));
+                    return false;
+                }
+                // Race condition: the semaphore might be recreated before
+                // we call sem_open again, so we'll retry several times.
+                maxTries = 3;
+            } else {
+                // Race condition: if it no longer exists at the next sem_open
+                // call, we won't realize we created it, so we'll leak it later.
+                oflag &= ~O_EXCL;
+                maxTries = 2;
+            }
+        } else {
+            break;
+        }
+    }
+    if (semaphore == SEM_FAILED) {
+        setErrorString(QLatin1String("QSystemSemaphore::handle"));
+        return false;
+    }
+
+    createdSemaphore = (oflag & O_EXCL) != 0;
+    return true;
+}
+#endif // QT_POSIX_IPC
 
 /*!
     \internal
@@ -178,6 +241,7 @@ key_t QSystemSemaphorePrivate::handle(QSystemSemaphore::AccessMode mode)
 */
 void QSystemSemaphorePrivate::cleanHandle()
 {
+#ifndef QT_POSIX_IPC
     unix_key = -1;
 
     // remove the file if we made it
@@ -198,6 +262,27 @@ void QSystemSemaphorePrivate::cleanHandle()
         }
         createdSemaphore = false;
     }
+#else
+    if (semaphore != SEM_FAILED) {
+        if (sem_close(semaphore) == -1) {
+            setErrorString(QLatin1String("QSystemSemaphore::cleanHandle (sem_close)"));
+#ifdef QSYSTEMSEMAPHORE_DEBUG
+            qDebug() << QLatin1String("QSystemSemaphore::cleanHandle sem_close failed.");
+#endif
+        }
+        semaphore = SEM_FAILED;
+    }
+
+    if (createdSemaphore) {
+        if (sem_unlink(QFile::encodeName(fileName).constData()) == -1 && errno != ENOENT) {
+            setErrorString(QLatin1String("QSystemSemaphore::cleanHandle (sem_unlink)"));
+#ifdef QSYSTEMSEMAPHORE_DEBUG
+            qDebug() << QLatin1String("QSystemSemaphore::cleanHandle sem_unlink failed.");
+#endif
+        }
+        createdSemaphore = false;
+    }
+#endif // QT_POSIX_IPC
 }
 
 /*!
@@ -205,6 +290,7 @@ void QSystemSemaphorePrivate::cleanHandle()
 */
 bool QSystemSemaphorePrivate::modifySemaphore(int count)
 {
+#ifndef QT_POSIX_IPC
     if (-1 == handle())
         return false;
 
@@ -229,6 +315,44 @@ bool QSystemSemaphorePrivate::modifySemaphore(int count)
 #endif
         return false;
     }
+#else
+    if (!handle())
+        return false;
+
+    if (count > 0) {
+        int cnt = count;
+        do {
+            if (sem_post(semaphore) == -1) {
+                setErrorString(QLatin1String("QSystemSemaphore::modifySemaphore (sem_post)"));
+#ifdef QSYSTEMSEMAPHORE_DEBUG
+                qDebug() << QLatin1String("QSystemSemaphore::modify sem_post failed") << count << errno;
+#endif
+                // rollback changes to preserve the SysV semaphore behavior
+                for ( ; cnt < count; ++cnt) {
+                    register int res;
+                    EINTR_LOOP(res, sem_wait(semaphore));
+                }
+                return false;
+            }
+            --cnt;
+        } while (cnt > 0);
+    } else {
+        register int res;
+        EINTR_LOOP(res, sem_wait(semaphore));
+        if (res == -1) {
+            // If the semaphore was removed be nice and create it and then modifySemaphore again
+            if (errno == EINVAL || errno == EIDRM) {
+                semaphore = SEM_FAILED;
+                return modifySemaphore(count);
+            }
+            setErrorString(QLatin1String("QSystemSemaphore::modifySemaphore (sem_wait)"));
+#ifdef QSYSTEMSEMAPHORE_DEBUG
+            qDebug() << QLatin1String("QSystemSemaphore::modify sem_wait failed") << count << errno;
+#endif
+            return false;
+        }
+    }
+#endif // QT_POSIX_IPC
 
     return true;
 }
diff --git a/src/corelib/thread/qthread_unix.cpp b/src/corelib/thread/qthread_unix.cpp
index 839a396..765969e 100644
--- a/src/corelib/thread/qthread_unix.cpp
+++ b/src/corelib/thread/qthread_unix.cpp
@@ -479,6 +479,11 @@ void QThread::usleep(unsigned long usecs)
 // sched_priority is OUT only
 static bool calculateUnixPriority(int priority, int *sched_policy, int *sched_priority)
 {
+#ifdef Q_OS_QNX
+    // without Round Robin drawn intensive apps will hog the cpu
+    // and make the system appear frozen
+   *sched_policy = SCHED_RR;
+#endif
 #ifdef SCHED_IDLE
     if (priority == QThread::IdlePriority) {
         *sched_policy = SCHED_IDLE;
diff --git a/src/declarative/debugger/qdeclarativeinspectorservice.cpp b/src/declarative/debugger/qdeclarativeinspectorservice.cpp
index 9fec006..15dbf58 100644
--- a/src/declarative/debugger/qdeclarativeinspectorservice.cpp
+++ b/src/declarative/debugger/qdeclarativeinspectorservice.cpp
@@ -67,11 +67,13 @@ QDeclarativeInspectorService *QDeclarativeInspectorService::instance()
 void QDeclarativeInspectorService::addView(QDeclarativeView *view)
 {
     m_views.append(view);
+    updateStatus();
 }
 
 void QDeclarativeInspectorService::removeView(QDeclarativeView *view)
 {
     m_views.removeAll(view);
+    updateStatus();
 }
 
 void QDeclarativeInspectorService::sendMessage(const QByteArray &message)
@@ -84,10 +86,18 @@ void QDeclarativeInspectorService::sendMessage(const QByteArray &message)
 
 void QDeclarativeInspectorService::statusChanged(Status status)
 {
-    if (m_views.isEmpty())
+    updateStatus();
+}
+
+void QDeclarativeInspectorService::updateStatus()
+{
+    if (m_views.isEmpty()) {
+        if (m_inspectorPlugin)
+            m_inspectorPlugin->deactivate();
         return;
+    }
 
-    if (status == Enabled) {
+    if (status() == Enabled) {
         if (!m_inspectorPlugin)
             m_inspectorPlugin = loadInspectorPlugin();
 
diff --git a/src/declarative/debugger/qdeclarativeinspectorservice_p.h b/src/declarative/debugger/qdeclarativeinspectorservice_p.h
index 9fe0d601f..9a14155 100644
--- a/src/declarative/debugger/qdeclarativeinspectorservice_p.h
+++ b/src/declarative/debugger/qdeclarativeinspectorservice_p.h
@@ -78,6 +78,8 @@ protected:
     virtual void messageReceived(const QByteArray &);
 
 private:
+    void updateStatus();
+
     static QDeclarativeInspectorInterface *loadInspectorPlugin();
 
     QList<QDeclarativeView*> m_views;
diff --git a/src/declarative/graphicsitems/qdeclarativetextinput.cpp b/src/declarative/graphicsitems/qdeclarativetextinput.cpp
index bc9b6fd..d2897eb 100644
--- a/src/declarative/graphicsitems/qdeclarativetextinput.cpp
+++ b/src/declarative/graphicsitems/qdeclarativetextinput.cpp
@@ -1941,12 +1941,12 @@ void QDeclarativeTextInput::selectionChanged()
 void QDeclarativeTextInput::q_textChanged()
 {
     Q_D(QDeclarativeTextInput);
+    emit textChanged();
+    emit displayTextChanged();
     updateSize();
     d->determineHorizontalAlignment();
     d->updateHorizontalScroll();
     updateMicroFocus();
-    emit textChanged();
-    emit displayTextChanged();
     if(hasAcceptableInput() != d->oldValidity){
         d->oldValidity = hasAcceptableInput();
         emit acceptableInputChanged();
diff --git a/src/declarative/qml/qdeclarativebinding.cpp b/src/declarative/qml/qdeclarativebinding.cpp
index ca3bc37..689cd00 100644
--- a/src/declarative/qml/qdeclarativebinding.cpp
+++ b/src/declarative/qml/qdeclarativebinding.cpp
@@ -243,12 +243,13 @@ QDeclarativeBinding::createBinding(Identifier id, QObject *obj, QDeclarativeCont
     if (id < 0)
         return 0;
 
+    Q_ASSERT(ctxt);
     QDeclarativeContextData *ctxtdata = QDeclarativeContextData::get(ctxt);
 
-    QDeclarativeEnginePrivate *engine = QDeclarativeEnginePrivate::get(qmlEngine(obj));
+    QDeclarativeEnginePrivate *engine = QDeclarativeEnginePrivate::get(ctxtdata->engine);
     QDeclarativeCompiledData *cdata = 0;
     QDeclarativeTypeData *typeData = 0;
-    if (engine && ctxtdata && !ctxtdata->url.isEmpty()) {
+    if (!ctxtdata->url.isEmpty()) {
         typeData = engine->typeLoader.get(ctxtdata->url);
         cdata = typeData->compiledData();
     }
diff --git a/src/gui/embedded/embedded.pri b/src/gui/embedded/embedded.pri
index 31f0bc6..836c116 100644
--- a/src/gui/embedded/embedded.pri
+++ b/src/gui/embedded/embedded.pri
@@ -117,7 +117,7 @@ embedded {
         contains( gfx-drivers, qnx ) {
                 HEADERS += embedded/qscreenqnx_qws.h
                 SOURCES += embedded/qscreenqnx_qws.cpp
-                LIBS += -lgf
+                LIBS_PRIVATE += -lgf
         }
 
         contains( gfx-drivers, integrityfb ) {
diff --git a/src/gui/embedded/qkbdqnx_qws.cpp b/src/gui/embedded/qkbdqnx_qws.cpp
index 5a8118d..ad76446 100644
--- a/src/gui/embedded/qkbdqnx_qws.cpp
+++ b/src/gui/embedded/qkbdqnx_qws.cpp
@@ -40,16 +40,16 @@
 ****************************************************************************/
 
 #include "qkbdqnx_qws.h"
-#include "QtCore/qsocketnotifier.h"
+
+#include "qplatformdefs.h"
+#include "qsocketnotifier.h"
+#include "private/qcore_unix_p.h"
 #include "QtCore/qdebug.h"
 
 #include <sys/dcmd_input.h>
-#include <photon/keycodes.h>
-
-#include "qplatformdefs.h"
+#include <sys/keycodes.h>
 #include <errno.h>
 
-
 QT_BEGIN_NAMESPACE
 
 /*!
@@ -72,7 +72,7 @@ QT_BEGIN_NAMESPACE
 
     Example invocation from command line: \c{/usr/photon/bin/devi-hid -Pr kbd mouse}
     Note that after running \c{devi-hid}, you will not be able to use the local
-    shell anymore. It is suggested to run the command in a shell scrip, that launches
+    shell anymore. It is suggested to run the command in a shell script, that launches
     a Qt application after invocation of \c{devi-hid}.
 
     To make \l{Qt for Embedded Linux} explicitly choose the qnx keyboard
@@ -100,15 +100,13 @@ QWSQnxKeyboardHandler::QWSQnxKeyboardHandler(const QString &device)
                          QT_OPEN_RDONLY);
     if (keyboardFD == -1) {
         qErrnoWarning(errno, "QWSQnxKeyboardHandler: Unable to open device");
-        return;
-    }
-
-    // create a socket notifier so we'll wake up whenever keyboard input is detected.
-    QSocketNotifier *notifier = new QSocketNotifier(keyboardFD, QSocketNotifier::Read, this);
-    connect(notifier, SIGNAL(activated(int)), SLOT(socketActivated()));
-
-    qDebug() << "QWSQnxKeyboardHandler: connected.";
+    } else {
+        // create a socket notifier so we'll wake up whenever keyboard input is detected.
+        QSocketNotifier *notifier = new QSocketNotifier(keyboardFD, QSocketNotifier::Read, this);
+        connect(notifier, SIGNAL(activated(int)), SLOT(socketActivated()));
 
+        qDebug("QWSQnxKeyboardHandler: connected.");
+    }
 }
 
 /*!
@@ -116,7 +114,16 @@ QWSQnxKeyboardHandler::QWSQnxKeyboardHandler(const QString &device)
  */
 QWSQnxKeyboardHandler::~QWSQnxKeyboardHandler()
 {
-    QT_CLOSE(keyboardFD);
+    if (keyboardFD != -1)
+        QT_CLOSE(keyboardFD);
+}
+
+// similar to PhKeyToMb
+static inline bool key_sym_displayable(unsigned long sym)
+{
+    if (sym >= 0xF000)
+        return sym >= 0xF100 && (sizeof(wchar_t) > 2 || sym < 0x10000);
+    return (sym & ~0x9F) != 0; // exclude 0...0x1F and 0x80...0x9F
 }
 
 /*! \internal
@@ -136,6 +143,11 @@ void QWSQnxKeyboardHandler::socketActivated()
     // the bytes read must be the size of a keyboard packet
     Q_ASSERT(bytesRead == sizeof(_keyboard_packet));
 
+    if (packet.data.flags & KEY_SYM_VALID_EX)
+        packet.data.flags |= KEY_SYM_VALID;
+    else if (!(packet.data.flags & (KEY_SYM_VALID | KEY_CAP_VALID)))
+        return;
+
 #if 0
     qDebug() << "keyboard got scancode"
              << hex << packet.data.modifiers
@@ -145,86 +157,157 @@ void QWSQnxKeyboardHandler::socketActivated()
              << packet.data.key_scan;
 #endif
 
-    // QNX is nice enough to translate the raw keyboard data into a QNX data structure
+    // QNX is nice enough to translate the raw keyboard data into generic format for us.
     // Now we just have to translate it into a format Qt understands.
 
-    // figure out whether it's a press
-    bool isPress = packet.data.key_cap & KEY_DOWN;
-    // figure out whether the key is still pressed and the key event is repeated
-    bool isRepeat = packet.data.key_cap & KEY_REPEAT;
-
-    Qt::Key key = Qt::Key_unknown;
-    int unicode = 0xffff;
-
-    // TODO - this switch is not complete!
-    switch (packet.data.key_scan) {
-    case KEYCODE_SPACE: key = Qt::Key_Space; unicode = 0x20; break;
-    case KEYCODE_F1: key = Qt::Key_F1; break;
-    case KEYCODE_F2: key = Qt::Key_F2; break;
-    case KEYCODE_F3: key = Qt::Key_F3; break;
-    case KEYCODE_F4: key = Qt::Key_F4; break;
-    case KEYCODE_F5: key = Qt::Key_F5; break;
-    case KEYCODE_F6: key = Qt::Key_F6; break;
-    case KEYCODE_F7: key = Qt::Key_F7; break;
-    case KEYCODE_F8: key = Qt::Key_F8; break;
-    case KEYCODE_F9: key = Qt::Key_F9; break;
-    case KEYCODE_F10: key = Qt::Key_F10; break;
-    case KEYCODE_F11: key = Qt::Key_F11; break;
-    case KEYCODE_F12: key = Qt::Key_F12; break;
-    case KEYCODE_BACKSPACE: key = Qt::Key_Backspace; break;
-    case KEYCODE_TAB: key = Qt::Key_Tab; break;
-    case KEYCODE_RETURN: key = Qt::Key_Return; break;
-    case KEYCODE_KP_ENTER: key = Qt::Key_Enter; break;
-    case KEYCODE_UP:
-    case KEYCODE_KP_UP:
-        key = Qt::Key_Up; break;
-    case KEYCODE_DOWN:
-    case KEYCODE_KP_DOWN:
-        key = Qt::Key_Down; break;
-    case KEYCODE_LEFT:
-    case KEYCODE_KP_LEFT:
-        key = Qt::Key_Left; break;
-    case KEYCODE_RIGHT:
-    case KEYCODE_KP_RIGHT:
-        key = Qt::Key_Right; break;
-    case KEYCODE_HOME:
-    case KEYCODE_KP_HOME:
-        key = Qt::Key_Home; break;
-    case KEYCODE_END:
-    case KEYCODE_KP_END:
-        key = Qt::Key_End; break;
-    case KEYCODE_PG_UP:
-    case KEYCODE_KP_PG_UP:
-        key = Qt::Key_PageUp; break;
-    case KEYCODE_PG_DOWN:
-    case KEYCODE_KP_PG_DOWN:
-        key = Qt::Key_PageDown; break;
-    case KEYCODE_INSERT:
-    case KEYCODE_KP_INSERT:
-        key = Qt::Key_Insert; break;
-    case KEYCODE_DELETE:
-    case KEYCODE_KP_DELETE:
-        key = Qt::Key_Delete; break;
-    case KEYCODE_ESCAPE:
-        key = Qt::Key_Escape; break;
-    default: // none of the above, try the key_scan directly
-        unicode = packet.data.key_scan;
-        break;
-    }
-
     // figure out the modifiers that are currently pressed
     Qt::KeyboardModifiers modifiers = Qt::NoModifier;
-    if (packet.data.flags & KEYMOD_SHIFT)
+    if (packet.data.modifiers & KEYMOD_SHIFT)
         modifiers |= Qt::ShiftModifier;
-    if (packet.data.flags & KEYMOD_CTRL)
+    if (packet.data.modifiers & KEYMOD_CTRL)
         modifiers |= Qt::ControlModifier;
-    if (packet.data.flags & KEYMOD_ALT)
+    if (packet.data.modifiers & KEYMOD_ALT)
         modifiers |= Qt::AltModifier;
+    if (packet.data.modifiers & KEYMOD_NUM_LOCK)
+        modifiers |= Qt::KeypadModifier;
+#if 0
+    // special case for AltGr
+    if (packet.data.modifiers & KEYMOD_ALTGR)
+        key = Qt::Key_AltGr;
+#endif
+
+    // figure out whether it's a press
+    bool isPress = packet.data.flags & KEY_DOWN;
+    // figure out whether the key is still pressed and the key event is repeated
+    bool isRepeat = packet.data.flags & KEY_REPEAT;
+
+    int key = Qt::Key_unknown;
+    int unicode = 0;
+
+    if (((packet.data.flags & KEY_SYM_VALID) && key_sym_displayable(unicode = packet.data.key_sym))
+        || ((packet.data.flags & KEY_CAP_VALID) && key_sym_displayable(unicode = packet.data.key_cap))) {
+        if (unicode <= 0x0ff) {
+            if (unicode >= 'a' && unicode <= 'z')
+                key = Qt::Key_A + unicode - 'a';
+            else
+                key = unicode;
+        }
+        // Ctrl<something> or Alt<something> is not a displayable character
+        if (modifiers & (Qt::ControlModifier | Qt::AltModifier))
+            unicode = 0;
+    } else {
+        unicode = 0;
+
+        unsigned long sym = 0;
+        if (packet.data.flags & KEY_SYM_VALID)
+            sym = packet.data.key_sym;
+        else if (packet.data.flags & KEY_CAP_VALID)
+            sym = packet.data.key_cap;
 
-    // if the unicode value is not ascii, we ignore it.
-    // TODO - do a complete mapping between all QNX scan codes and Qt codes
-    if (unicode != 0xffff && !isascii(unicode))
-        return; // unprintable character
+        switch (sym) {
+        case KEYCODE_ESCAPE: key = Qt::Key_Escape; unicode = 27; break;
+        case KEYCODE_TAB: key = Qt::Key_Tab; unicode = 9; break;
+        case KEYCODE_BACK_TAB: key = Qt::Key_Backtab; break;
+        case KEYCODE_BACKSPACE: key = Qt::Key_Backspace; unicode = 127; break;
+        case KEYCODE_RETURN: key = Qt::Key_Return; break;
+        case KEYCODE_KP_ENTER: key = Qt::Key_Enter; break;
+        case KEYCODE_INSERT:
+        case KEYCODE_KP_INSERT:
+            key = Qt::Key_Insert; break;
+        case KEYCODE_KP_DELETE:
+            if (modifiers & Qt::KeypadModifier) {
+                key = Qt::Key_Comma;
+                break;
+            }
+        // fall through
+        case KEYCODE_DELETE:
+            key = Qt::Key_Delete; break;
+        case KEYCODE_PAUSE:
+        case KEYCODE_BREAK:
+            if (modifiers & (Qt::ControlModifier | Qt::AltModifier))
+                return; // sometimes occurs at the middle of a key sequence
+            key = Qt::Key_Pause; break;
+        case KEYCODE_PRINT:
+            if (modifiers & (Qt::ControlModifier | Qt::AltModifier))
+                return; // sometimes occurs at the middle of a key sequence
+            key = Qt::Key_Print; break;
+        case KEYCODE_SYSREQ:
+            key = Qt::Key_SysReq; break;
+        case KEYCODE_HOME:
+        case KEYCODE_KP_HOME:
+            key = Qt::Key_Home; break;
+        case KEYCODE_END:
+        case KEYCODE_KP_END:
+            key = Qt::Key_End; break;
+        case KEYCODE_LEFT:
+        case KEYCODE_KP_LEFT:
+            key = Qt::Key_Left; break;
+        case KEYCODE_UP:
+        case KEYCODE_KP_UP:
+            key = Qt::Key_Up; break;
+        case KEYCODE_RIGHT:
+        case KEYCODE_KP_RIGHT:
+            key = Qt::Key_Right; break;
+        case KEYCODE_DOWN:
+        case KEYCODE_KP_DOWN:
+            key = Qt::Key_Down; break;
+        case KEYCODE_PG_UP:
+        case KEYCODE_KP_PG_UP:
+            key = Qt::Key_PageUp; break;
+        case KEYCODE_PG_DOWN:
+        case KEYCODE_KP_PG_DOWN:
+            key = Qt::Key_PageDown; break;
+
+        case KEYCODE_LEFT_SHIFT:
+        case KEYCODE_RIGHT_SHIFT:
+            key = Qt::Key_Shift; break;
+        case KEYCODE_LEFT_CTRL:
+        case KEYCODE_RIGHT_CTRL:
+            key = Qt::Key_Control; break;
+        case KEYCODE_LEFT_ALT:
+        case KEYCODE_RIGHT_ALT:
+            key = Qt::Key_Alt; break;
+        case KEYCODE_CAPS_LOCK:
+            key = Qt::Key_CapsLock; break;
+        case KEYCODE_NUM_LOCK:
+            key = Qt::Key_NumLock; break;
+        case KEYCODE_SCROLL_LOCK:
+            key = Qt::Key_ScrollLock; break;
+
+        case KEYCODE_F1:
+        case KEYCODE_F2:
+        case KEYCODE_F3:
+        case KEYCODE_F4:
+        case KEYCODE_F5:
+        case KEYCODE_F6:
+        case KEYCODE_F7:
+        case KEYCODE_F8:
+        case KEYCODE_F9:
+        case KEYCODE_F10:
+        case KEYCODE_F11:
+        case KEYCODE_F12:
+            key = Qt::Key_F1 + sym - KEYCODE_F1; break;
+
+        case KEYCODE_MENU: key = Qt::Key_Menu; break;
+        case KEYCODE_LEFT_HYPER: key = Qt::Key_Hyper_L; break;
+        case KEYCODE_RIGHT_HYPER: key = Qt::Key_Hyper_R; break;
+
+        case KEYCODE_KP_PLUS: key = Qt::Key_Plus; break;
+        case KEYCODE_KP_MINUS: key = Qt::Key_Minus; break;
+        case KEYCODE_KP_MULTIPLY: key = Qt::Key_multiply; break;
+        case KEYCODE_KP_DIVIDE: key = Qt::Key_Slash; break;
+        case KEYCODE_KP_FIVE:
+            if (!(modifiers & Qt::KeypadModifier))
+                key = Qt::Key_5;
+            break;
+
+        default: // none of the above
+            break;
+        }
+    }
+
+    if (key == Qt::Key_unknown && unicode == 0)
+        return;
 
     // call processKeyEvent. This is where all the magic happens to insert a
     // key event into Qt's event loop.
diff --git a/src/gui/embedded/qlock.cpp b/src/gui/embedded/qlock.cpp
index ac15431..eaad15c 100644
--- a/src/gui/embedded/qlock.cpp
+++ b/src/gui/embedded/qlock.cpp
@@ -41,7 +41,6 @@
 
 #include "qlock_p.h"
 
-
 #ifdef QT_NO_QWS_MULTIPROCESS
 
 QT_BEGIN_NAMESPACE
@@ -83,7 +82,7 @@ QT_END_NAMESPACE
 #else // QT_NO_QWS_MULTIPROCESS
 
 #if defined(Q_OS_DARWIN)
-#  define Q_NO_SEMAPHORE
+#  define QT_NO_SEMAPHORE
 #endif
 
 #include "qwssignalhandler_p.h"
@@ -91,11 +90,13 @@ QT_END_NAMESPACE
 #include <unistd.h>
 #include <sys/types.h>
 #include <sys/ipc.h>
-#if defined(Q_NO_SEMAPHORE)
+#if defined(QT_NO_SEMAPHORE)
 #  include <sys/stat.h>
 #  include <sys/file.h>
-#else
+#elif !defined(QT_POSIX_IPC)
 #  include <sys/sem.h>
+#else
+#  include <semaphore.h>
 #endif
 #include <string.h>
 #include <errno.h>
@@ -109,17 +110,24 @@ QT_BEGIN_NAMESPACE
 class QLockData
 {
 public:
-#ifdef Q_NO_SEMAPHORE
+#if defined(QT_NO_SEMAPHORE) || defined(QT_POSIX_IPC)
     QByteArray file;
-#endif // Q_NO_SEMAPHORE
+#endif
+#if !defined(QT_POSIX_IPC)
     int id;
+#else
+    sem_t *id;    // Read mode resource counter
+    sem_t *rsem;  // Read mode lock
+    sem_t *wsem;  // Write mode lock
+#endif
     int count;
     bool owned;
 };
 
+
 /*!
     \class QLock
-    \brief The QLock class is a wrapper for a System V shared semaphore.
+    \brief The QLock class is a wrapper for a system shared semaphore.
 
     \ingroup qws
 
@@ -148,7 +156,7 @@ QLock::QLock(const QString &filename, char id, bool create)
 {
     data = new QLockData;
     data->count = 0;
-#ifdef Q_NO_SEMAPHORE
+#if defined(QT_NO_SEMAPHORE)
     data->file = filename.toLocal8Bit() + id;
     for (int x = 0; x < 2; ++x) {
         data->id = QT_OPEN(data->file.constData(), O_RDWR | (x ? O_CREAT : 0), S_IRWXU);
@@ -157,7 +165,7 @@ QLock::QLock(const QString &filename, char id, bool create)
             break;
         }
     }
-#else
+#elif !defined(QT_POSIX_IPC)
     key_t semkey = ftok(filename.toLocal8Bit().constData(), id);
     data->id = semget(semkey, 0, 0);
     data->owned = create;
@@ -170,6 +178,28 @@ QLock::QLock(const QString &filename, char id, bool create)
         arg.val = MAX_LOCKS;
         semctl(data->id, 0, SETVAL, arg);
     }
+#else
+    data->file = filename.toLocal8Bit() + id;
+    data->owned = create;
+
+    char ids[3] = { 'c', 'r', 'w' };
+    sem_t **sems[3] = { &data->id, &data->rsem, &data->wsem };
+    unsigned short initialValues[3] = { MAX_LOCKS, 1, 1 };
+    for (int i = 0; i < 3; ++i) {
+        QByteArray file = data->file + ids[i];
+        do {
+            *sems[i] = sem_open(file.constData(), 0, 0666, 0);
+        } while (*sems[i] == SEM_FAILED && errno == EINTR);
+        if (create) {
+            if (*sems[i] != SEM_FAILED) {
+                sem_close(*sems[i]);
+                sem_unlink(file.constData());
+            }
+            do {
+                *sems[i] = sem_open(file.constData(), O_CREAT, 0666, initialValues[i]);
+            } while (*sems[i] == SEM_FAILED && errno == EINTR);
+        }
+    }
 #endif
     if (!isValid()) {
         qWarning("QLock::QLock: Cannot %s semaphore %s '%c' (%d, %s)",
@@ -193,17 +223,32 @@ QLock::~QLock()
 
     while (locked())
         unlock();
-#ifdef Q_NO_SEMAPHORE
+
+#if defined(QT_NO_SEMAPHORE)
     if (isValid())
         QT_CLOSE(data->id);
+#elif defined(QT_POSIX_IPC)
+    if (data->id != SEM_FAILED)
+        sem_close(data->id);
+    if (data->rsem != SEM_FAILED)
+        sem_close(data->rsem);
+    if (data->wsem != SEM_FAILED)
+        sem_close(data->wsem);
 #endif
+
     if (data->owned) {
-#ifdef Q_NO_SEMAPHORE
+#if defined(QT_NO_SEMAPHORE)
         unlink(data->file.constData());
-#else
+#elif !defined(QT_POSIX_IPC)
         qt_semun semval;
         semval.val = 0;
         semctl(data->id, 0, IPC_RMID, semval);
+#else
+        char ids[3] = { 'c', 'r', 'w' };
+        for (int i = 0; i < 3; ++i) {
+            QByteArray file = data->file + ids[i];
+            sem_unlink(file.constData());
+        }
 #endif
     }
     delete data;
@@ -216,7 +261,11 @@ QLock::~QLock()
 */
 bool QLock::isValid() const
 {
+#if !defined(QT_POSIX_IPC)
     return data && data->id != -1;
+#else
+    return data && data->id != SEM_FAILED && data->rsem != SEM_FAILED && data->wsem != SEM_FAILED;
+#endif
 }
 
 /*!
@@ -232,21 +281,48 @@ bool QLock::isValid() const
 */
 void QLock::lock(Type t)
 {
+    if (!isValid())
+        return;
+
     if (!data->count) {
         type = t;
 
         int rv;
-#ifdef Q_NO_SEMAPHORE
+#if defined(QT_NO_SEMAPHORE)
         int op = type == Write ? LOCK_EX : LOCK_SH;
 
         EINTR_LOOP(rv, flock(data->id, op));
-#else
+#elif !defined(QT_POSIX_IPC)
         sembuf sops;
         sops.sem_num = 0;
         sops.sem_op = type == Write ? -MAX_LOCKS : -1;
         sops.sem_flg = SEM_UNDO;
 
         EINTR_LOOP(rv, semop(data->id, &sops, 1));
+#else
+        if (type == Write) {
+            EINTR_LOOP(rv, sem_wait(data->rsem));
+            if (rv != -1) {
+                EINTR_LOOP(rv, sem_wait(data->wsem));
+                if (rv == -1)
+                    sem_post(data->rsem);
+            }
+        } else {
+            EINTR_LOOP(rv, sem_wait(data->wsem));
+            if (rv != -1) {
+                EINTR_LOOP(rv, sem_trywait(data->rsem));
+                if (rv != -1 || errno == EAGAIN) {
+                    EINTR_LOOP(rv, sem_wait(data->id));
+                    if (rv == -1) {
+                        int semval;
+                        sem_getvalue(data->id, &semval);
+                        if (semval == MAX_LOCKS)
+                            sem_post(data->rsem);
+                    }
+                }
+                rv = sem_post(data->wsem);
+            }
+        }
 #endif
         if (rv == -1) {
             qDebug("QLock::lock(): %s", strerror(errno));
@@ -265,19 +341,37 @@ void QLock::lock(Type t)
 */
 void QLock::unlock()
 {
-    if (data->count) {
+    if (!isValid())
+        return;
+
+    if (data->count > 0) {
         data->count--;
         if (!data->count) {
             int rv;
-#ifdef Q_NO_SEMAPHORE
+#if defined(QT_NO_SEMAPHORE)
             EINTR_LOOP(rv, flock(data->id, LOCK_UN));
-#else
+#elif !defined(QT_POSIX_IPC)
             sembuf sops;
             sops.sem_num = 0;
             sops.sem_op = type == Write ? MAX_LOCKS : 1;
             sops.sem_flg = SEM_UNDO;
 
             EINTR_LOOP(rv, semop(data->id, &sops, 1));
+#else
+            if (type == Write) {
+                sem_post(data->wsem);
+                rv = sem_post(data->rsem);
+            } else {
+                EINTR_LOOP(rv, sem_wait(data->wsem));
+                if (rv != -1) {
+                    sem_post(data->id);
+                    int semval;
+                    sem_getvalue(data->id, &semval);
+                    if (semval == MAX_LOCKS)
+                        sem_post(data->rsem);
+                    rv = sem_post(data->wsem);
+                }
+            }
 #endif
             if (rv == -1)
                 qDebug("QLock::unlock(): %s", strerror(errno));
diff --git a/src/gui/embedded/qmouselinuxinput_qws.cpp b/src/gui/embedded/qmouselinuxinput_qws.cpp
index efcf6d4..19a9a99 100644
--- a/src/gui/embedded/qmouselinuxinput_qws.cpp
+++ b/src/gui/embedded/qmouselinuxinput_qws.cpp
@@ -135,19 +135,21 @@ void QWSLinuxInputMousePrivate::readMouseData()
     int n = 0;
 
     forever {
-        n = QT_READ(m_fd, reinterpret_cast<char *>(buffer) + n, sizeof(buffer) - n);
-
-        if (n == 0) {
+        int bytesRead = QT_READ(m_fd, reinterpret_cast<char *>(buffer) + n, sizeof(buffer) - n);
+        if (bytesRead == 0) {
             qWarning("Got EOF from the input device.");
             return;
-        } else if (n < 0 && (errno != EINTR && errno != EAGAIN)) {
-            qWarning("Could not read from input device: %s", strerror(errno));
-            return;
-        } else if (n % sizeof(buffer[0]) == 0) {
+        }
+        if (bytesRead == -1) {
+            if (errno != EAGAIN)
+                qWarning("Could not read from input device: %s", strerror(errno));
             break;
         }
-    }
 
+        n += bytesRead;
+        if (n % sizeof(buffer[0]) == 0)
+            break;
+    }
     n /= sizeof(buffer[0]);
 
     for (int i = 0; i < n; ++i) {
diff --git a/src/gui/embedded/qmouseqnx_qws.cpp b/src/gui/embedded/qmouseqnx_qws.cpp
index a9647c0..d0b892e 100644
--- a/src/gui/embedded/qmouseqnx_qws.cpp
+++ b/src/gui/embedded/qmouseqnx_qws.cpp
@@ -39,14 +39,13 @@
 **
 ****************************************************************************/
 
-#include "qplatformdefs.h"
 #include "qmouseqnx_qws.h"
 
+#include "qplatformdefs.h"
 #include "qsocketnotifier.h"
-#include "qdebug.h"
+#include "private/qcore_unix_p.h"
 
 #include <sys/dcmd_input.h>
-
 #include <errno.h>
 
 QT_BEGIN_NAMESPACE
@@ -92,22 +91,28 @@ QT_BEGIN_NAMESPACE
 
     \sa QMouseDriverFactory
  */
-QQnxMouseHandler::QQnxMouseHandler(const QString & /*driver*/, const QString &device)
+QQnxMouseHandler::QQnxMouseHandler(const QString & driver, const QString &device)
+    : QObject(), QWSMouseHandler(driver, device), mouseButtons(Qt::NoButton)
 {
     // open the mouse device with O_NONBLOCK so reading won't block when there's no data
     mouseFD = QT_OPEN(device.isEmpty() ? "/dev/devi/mouse0" : device.toLatin1().constData(),
-                          QT_OPEN_RDONLY | O_NONBLOCK);
+                      QT_OPEN_RDONLY | O_NONBLOCK);
     if (mouseFD == -1) {
         qErrnoWarning(errno, "QQnxMouseHandler: Unable to open mouse device");
-        return;
+    } else {
+        struct _pointer_info data;
+        if (devctl(mouseFD, _POINTERGETINFO, &data, sizeof(data), NULL) == EOK)
+            absolutePositioning = (data.flags & _POINTER_FLAG_ABSOLUTE);
+        else
+            absolutePositioning = !device.isEmpty() && device.contains(QLatin1String("touch"));
+
+        // register a socket notifier on the file descriptor so we'll wake up whenever
+        // there's a mouse move waiting for us.
+        mouseNotifier = new QSocketNotifier(mouseFD, QSocketNotifier::Read, this);
+        connect(mouseNotifier, SIGNAL(activated(int)), SLOT(socketActivated()));
+
+        qDebug("QQnxMouseHandler: connected.");
     }
-
-    // register a socket notifier on the file descriptor so we'll wake up whenever
-    // there's a mouse move waiting for us.
-    mouseNotifier = new QSocketNotifier(mouseFD, QSocketNotifier::Read, this);
-    connect(mouseNotifier, SIGNAL(activated(int)), SLOT(socketActivated()));
-
-    qDebug() << "QQnxMouseHandler: connected.";
 }
 
 /*!
@@ -115,7 +120,8 @@ QQnxMouseHandler::QQnxMouseHandler(const QString & /*driver*/, const QString &de
  */
 QQnxMouseHandler::~QQnxMouseHandler()
 {
-    QT_CLOSE(mouseFD);
+    if (mouseFD != -1)
+        QT_CLOSE(mouseFD);
 }
 
 /*! \reimp */
@@ -140,39 +146,45 @@ void QQnxMouseHandler::suspend()
 */
 void QQnxMouseHandler::socketActivated()
 {
+    QPoint queuedPos = mousePos;
+
     // _mouse_packet is a QNX structure. devi-hid is nice enough to translate
     // the raw byte data from mouse devices into generic format for us.
-    _mouse_packet packet;
+    struct _mouse_packet buffer[32];
+    int n = 0;
 
-    int iteration = 0;
-
-    // read mouse events in batches of 10. Since we're getting quite a lot
-    // of mouse events, it's better to do them in batches than to return to the
-    // event loop every time.
-    do {
-        int bytesRead = QT_READ(mouseFD, &packet, sizeof(packet));
+    forever {
+        int bytesRead = QT_READ(mouseFD, reinterpret_cast<char *>(buffer) + n, sizeof(buffer) - n);
         if (bytesRead == -1) {
             // EAGAIN means that there are no more mouse events to read
             if (errno != EAGAIN)
-                qErrnoWarning(errno, "QQnxMouseHandler: Unable to read from socket");
-            return;
+                qErrnoWarning(errno, "QQnxMouseHandler: Could not read from input device");
+            break;
         }
 
-        // bytes read should always be equal to the size of a packet.
-        Q_ASSERT(bytesRead == sizeof(packet));
+        n += bytesRead;
+        if (n % sizeof(buffer[0]) == 0)
+            break;
+    }
+    n /= sizeof(buffer[0]);
 
-        // translate the coordinates from the QNX data structure to Qt coordinates
-        // note the swapped y axis
-        QPoint pos = mousePos;
-        pos += QPoint(packet.dx, -packet.dy);
+    for (int i = 0; i < n; ++i) {
+        const struct _mouse_packet &packet = buffer[i];
 
-        // QNX only tells us relative mouse movements, not absolute ones, so limit the
-        // cursor position manually to the screen
-        limitToScreen(pos);
+        // translate the coordinates from the QNX data structure to the Qt coordinates
+        if (absolutePositioning) {
+            queuedPos = QPoint(packet.dx, packet.dy);
+        } else {
+            // note the swapped y axis
+            queuedPos += QPoint(packet.dx, -packet.dy);
+
+            // QNX only tells us relative mouse movements, not absolute ones, so
+            // limit the cursor position manually to the screen
+            limitToScreen(queuedPos);
+        }
 
         // translate the QNX mouse button bitmask to Qt buttons
         int buttons = Qt::NoButton;
-
         if (packet.hdr.buttons & _POINTER_BUTTON_LEFT)
             buttons |= Qt::LeftButton;
         if (packet.hdr.buttons & _POINTER_BUTTON_MIDDLE)
@@ -180,11 +192,17 @@ void QQnxMouseHandler::socketActivated()
         if (packet.hdr.buttons & _POINTER_BUTTON_RIGHT)
             buttons |= Qt::RightButton;
 
-        // call mouseChanged() - this does all the magic to actually move the on-screen
-        // mouse cursor.
-        mouseChanged(pos, buttons, 0);
-    } while (++iteration < 11);
+        if (buttons != mouseButtons) {
+            // send the MouseEvent to avoid missing any clicks
+            mouseChanged(queuedPos, buttons, 0);
+            // mousePos updated by the mouseChanged()
+            queuedPos = mousePos;
+            mouseButtons = buttons;
+        }
+    }
+
+    if (queuedPos != mousePos)
+        mouseChanged(queuedPos, mouseButtons, 0);
 }
 
 QT_END_NAMESPACE
-
diff --git a/src/gui/embedded/qmouseqnx_qws.h b/src/gui/embedded/qmouseqnx_qws.h
index 2a5eef2..54deaf3 100644
--- a/src/gui/embedded/qmouseqnx_qws.h
+++ b/src/gui/embedded/qmouseqnx_qws.h
@@ -70,6 +70,8 @@ private Q_SLOTS:
 private:
     QSocketNotifier *mouseNotifier;
     int mouseFD;
+    int mouseButtons;
+    bool absolutePositioning;
 };
 
 QT_END_NAMESPACE
diff --git a/src/gui/embedded/qscreen_qws.h b/src/gui/embedded/qscreen_qws.h
index 2ecc6e7..5ff90f9 100644
--- a/src/gui/embedded/qscreen_qws.h
+++ b/src/gui/embedded/qscreen_qws.h
@@ -44,7 +44,7 @@
 
 #include <QtCore/qnamespace.h>
 #include <QtCore/qpoint.h>
-#include <QtCore/qlist.h>
+#include <QtCore/qstringlist.h>
 #include <QtGui/qrgb.h>
 #include <QtCore/qrect.h>
 #include <QtGui/qimage.h>
@@ -357,6 +357,7 @@ private:
     friend class QVNCScreen;
     friend class QLinuxFbScreen;
     friend class QVFbScreen;
+    friend class QQnxScreen;
     friend class QProxyScreen;
     friend class QIntfbScreen;
 #endif
diff --git a/src/gui/embedded/qscreenqnx_qws.cpp b/src/gui/embedded/qscreenqnx_qws.cpp
index 4afe087..d34e732 100644
--- a/src/gui/embedded/qscreenqnx_qws.cpp
+++ b/src/gui/embedded/qscreenqnx_qws.cpp
@@ -40,7 +40,9 @@
 ****************************************************************************/
 
 #include "qscreenqnx_qws.h"
-#include "qdebug.h"
+
+#include <qapplication.h>
+#include <qregexp.h>
 
 #include <gf/gf.h>
 
@@ -52,6 +54,10 @@ struct QQnxScreenContext
     inline QQnxScreenContext()
         : device(0), display(0), layer(0), hwSurface(0), memSurface(0), context(0)
     {}
+    inline ~QQnxScreenContext()
+    { cleanup(); }
+
+    void cleanup();
 
     gf_dev_t device;
     gf_dev_info_t deviceInfo;
@@ -64,6 +70,35 @@ struct QQnxScreenContext
     gf_context_t context;
 };
 
+void QQnxScreenContext::cleanup()
+{
+    if (context) {
+        gf_context_free(context);
+        context = 0;
+    }
+    if (memSurface) {
+        gf_surface_free(memSurface);
+        memSurface = 0;
+    }
+    if (hwSurface) {
+        gf_surface_free(hwSurface);
+        hwSurface = 0;
+    }
+    if (layer) {
+        gf_layer_detach(layer);
+        layer = 0;
+    }
+    if (display) {
+        gf_display_detach(display);
+        display = 0;
+    }
+    if (device) {
+        gf_dev_detach(device);
+        device = 0;
+    }
+}
+
+
 /*!
     \class QQnxScreen
     \preliminary
@@ -117,19 +152,23 @@ QQnxScreen::~QQnxScreen()
     delete d;
 }
 
-/*! \reimp
+/*!
+    \reimp
 */
 bool QQnxScreen::initDevice()
 {
-    // implement this if you have multiple processes that want to access the display
-    // (not required if QT_NO_QWS_MULTIPROCESS is set)
+#ifndef QT_NO_QWS_CURSOR
+    QScreenCursor::initSoftwareCursor();
+#endif
+
     return true;
 }
 
-/*! \internal
-  Attaches to the named device \a name.
+/*!
+    \internal
+    Attaches to the named device \a name.
 */
-static bool attachDevice(QQnxScreenContext * const d, const char *name)
+static inline bool attachDevice(QQnxScreenContext * const d, const char *name)
 {
     int ret = gf_dev_attach(&d->device, name, &d->deviceInfo);
     if (ret != GF_ERR_OK) {
@@ -139,193 +178,231 @@ static bool attachDevice(QQnxScreenContext * const d, const char *name)
     return true;
 }
 
-/*! \internal
-  Attaches to the display at index \a displayIndex.
- */
-static bool attachDisplay(QQnxScreenContext * const d, int displayIndex)
+/*!
+    \internal
+    Attaches to the display at index \a displayIndex.
+*/
+static inline bool attachDisplay(QQnxScreenContext * const d, int displayIndex)
 {
     int ret = gf_display_attach(&d->display, d->device, displayIndex, &d->displayInfo);
     if (ret != GF_ERR_OK) {
-        qWarning("QQnxScreen: gf_display_attach(%d) failed with error code %d",
-                displayIndex, ret);
+        qWarning("QQnxScreen: gf_display_attach(%d) failed with error code %d", displayIndex, ret);
         return false;
     }
     return true;
 }
 
-/*! \internal
-  Attaches to the layer \a layerIndex.
- */
-static bool attachLayer(QQnxScreenContext * const d, int layerIndex)
+/*!
+    \internal
+    Attaches to the layer \a layerIndex.
+*/
+static inline bool attachLayer(QQnxScreenContext * const d, int layerIndex)
 {
-    int ret = gf_layer_attach(&d->layer, d->display, layerIndex, 0);
+    unsigned flags = QApplication::type() != QApplication::GuiServer ? GF_LAYER_ATTACH_PASSIVE : 0;
+    int ret = gf_layer_attach(&d->layer, d->display, layerIndex, flags);
     if (ret != GF_ERR_OK) {
-        qWarning("QQnxScreen: gf_layer_attach(%d) failed with error code %d", layerIndex,
-                ret);
+        qWarning("QQnxScreen: gf_layer_attach(%d) failed with error code %d", layerIndex, ret);
         return false;
     }
-    gf_layer_enable(d->layer);
 
     return true;
 }
 
-/*! \internal
-  Creates a new hardware surface (usually on the Gfx card memory) with the dimensions \a w * \a h.
- */
-static bool createHwSurface(QQnxScreenContext * const d, int w, int h)
+/*!
+    \internal
+    Creates a new hardware surface (usually on the Gfx card memory) with the dimensions \a w * \a h.
+*/
+static inline bool createHwSurface(QQnxScreenContext * const d, int w, int h)
 {
     int ret = gf_surface_create_layer(&d->hwSurface, &d->layer, 1, 0,
-                w, h, GF_FORMAT_ARGB8888, 0, 0);
+                                      w, h, d->displayInfo.format, 0, 0);
     if (ret != GF_ERR_OK) {
-        qWarning("QQnxScreen: gf_surface_create_layer(%dx%d) failed with error code %d",
-                w, h, ret);
+        qWarning("QQnxScreen: gf_surface_create_layer(%dx%d) failed with error code %d", w, h, ret);
         return false;
     }
 
     gf_layer_set_surfaces(d->layer, &d->hwSurface, 1);
 
+    gf_layer_enable(d->layer);
+
     ret = gf_layer_update(d->layer, 0);
     if (ret != GF_ERR_OK) {
         qWarning("QQnxScreen: gf_layer_update() failed with error code %d\n", ret);
         return false;
     }
 
-    return true;
-}
-
-/*! \internal
-  Creates an in-memory, linear accessible surface of dimensions \a w * \a h.
-  This is the main surface that QWS blits to.
- */
-static bool createMemSurface(QQnxScreenContext * const d, int w, int h)
-{
-    // Note: gf_surface_attach() could also be used, so we'll create the buffer
-    // and let the surface point to it. Here, we use surface_create instead.
-
-    int ret = gf_surface_create(&d->memSurface, d->device, w, h,
-                GF_FORMAT_ARGB8888, 0,
-                GF_SURFACE_CREATE_CPU_FAST_ACCESS | GF_SURFACE_CREATE_CPU_LINEAR_ACCESSIBLE
-                | GF_SURFACE_PHYS_CONTIG | GF_SURFACE_CREATE_SHAREABLE);
+    ret = gf_context_create(&d->context);
     if (ret != GF_ERR_OK) {
-        qWarning("QQnxScreen: gf_surface_create(%dx%d) failed with error code %d",
-                w, h, ret);
+        qWarning("QQnxScreen: gf_context_create() failed with error code %d", ret);
         return false;
     }
 
-    gf_surface_get_info(d->memSurface, &d->memSurfaceInfo);
-
-    if (d->memSurfaceInfo.sid == unsigned(GF_SID_INVALID)) {
-        qWarning("QQnxScreen: gf_surface_get_info() failed.");
+    ret = gf_context_set_surface(d->context, d->hwSurface);
+    if (ret != GF_ERR_OK) {
+        qWarning("QQnxScreen: gf_context_set_surface() failed with error code %d", ret);
         return false;
     }
 
     return true;
 }
 
-/* \internal
-   Creates a QNX gf context and sets our memory surface on it.
- */
-static bool createContext(QQnxScreenContext * const d)
+/*!
+    \internal
+    Creates an in-memory, linear accessible surface of dimensions \a w * \a h.
+    This is the main surface that QWS blits to.
+*/
+static inline bool createMemSurface(QQnxScreenContext * const d, int w, int h)
 {
-    int ret = gf_context_create(&d->context);
+#ifndef QT_NO_QWS_MULTIPROCESS
+    if (QApplication::type() != QApplication::GuiServer) {
+        unsigned sidlist[64];
+        int n = gf_surface_sidlist(d->device, sidlist); // undocumented API
+        for (int i = 0; i < n; ++i) {
+            int ret = gf_surface_attach_by_sid(&d->memSurface, d->device, sidlist[i]);
+            if (ret == GF_ERR_OK) {
+                gf_surface_get_info(d->memSurface, &d->memSurfaceInfo);
+                if (d->memSurfaceInfo.sid != unsigned(GF_SID_INVALID)) {
+                    // can we use the surface's vaddr?
+                    unsigned flags = GF_SURFACE_CPU_LINEAR_READABLE | GF_SURFACE_CPU_LINEAR_WRITEABLE;
+                    if ((d->memSurfaceInfo.flags & flags) == flags)
+                        return true;
+                }
+
+                gf_surface_free(d->memSurface);
+                d->memSurface = 0;
+            }
+        }
+        qWarning("QQnxScreen: cannot attach to an usable surface; create a new one.");
+    }
+#endif
+    int ret = gf_surface_create(&d->memSurface, d->device, w, h, d->displayInfo.format, 0,
+                GF_SURFACE_CREATE_CPU_FAST_ACCESS | GF_SURFACE_CREATE_CPU_LINEAR_ACCESSIBLE
+                | GF_SURFACE_CREATE_PHYS_CONTIG | GF_SURFACE_CREATE_SHAREABLE);
     if (ret != GF_ERR_OK) {
-        qWarning("QQnxScreen: gf_context_create() failed with error code %d", ret);
+        qWarning("QQnxScreen: gf_surface_create(%dx%d) failed with error code %d",
+                 w, h, ret);
         return false;
     }
 
-    ret = gf_context_set_surface(d->context, d->memSurface);
-    if (ret != GF_ERR_OK) {
-        qWarning("QQnxScreen: gf_context_set_surface() failed with error code %d", ret);
+    gf_surface_get_info(d->memSurface, &d->memSurfaceInfo);
+
+    if (d->memSurfaceInfo.sid == unsigned(GF_SID_INVALID)) {
+        qWarning("QQnxScreen: gf_surface_get_info() failed.");
         return false;
     }
 
     return true;
 }
 
-/*! \reimp
-  Connects to QNX's io-display based device based on the \a displaySpec parameters
-  from the \c{QWS_DISPLAY} environment variable. See the QQnxScreen class documentation
-  for possible parameters.
+/*!
+    \reimp
+    Connects to QNX's io-display based device based on the \a displaySpec parameters
+    from the \c{QWS_DISPLAY} environment variable. See the QQnxScreen class documentation
+    for possible parameters.
 
-  \sa QQnxScreen
- */
+    \sa QQnxScreen
+*/
 bool QQnxScreen::connect(const QString &displaySpec)
 {
     const QStringList params = displaySpec.split(QLatin1Char(':'), QString::SkipEmptyParts);
 
-    bool isOk = false;
-    QRegExp deviceRegExp(QLatin1String("^device=(.+)$"));
-    if (params.indexOf(deviceRegExp) != -1) {
-        isOk = attachDevice(d, deviceRegExp.cap(1).toLocal8Bit().constData());
-    } else {
-        // no device specified - attach to device 0 (the default)
-        isOk = attachDevice(d, GF_DEVICE_INDEX(0));
+    // default to device 0
+    int deviceIndex = 0;
+    if (!params.isEmpty()) {
+        QRegExp deviceRegExp(QLatin1String("^device=(.+)$"));
+        if (params.indexOf(deviceRegExp) != -1)
+            deviceIndex = deviceRegExp.cap(1).toInt();
     }
 
-    if (!isOk)
+    if (!attachDevice(d, GF_DEVICE_INDEX(deviceIndex)))
         return false;
 
     qDebug("QQnxScreen: Attached to Device, number of displays: %d", d->deviceInfo.ndisplays);
 
-    // default to display 0
-    int displayIndex = 0;
-    QRegExp displayRegexp(QLatin1String("^display=(\\d+)$"));
-    if (params.indexOf(displayRegexp) != -1) {
-        displayIndex = displayRegexp.cap(1).toInt();
+    // default to display id passed to constructor
+    int displayIndex = displayId;
+    if (!params.isEmpty()) {
+        QRegExp displayRegexp(QLatin1String("^display=(\\d+)$"));
+        if (params.indexOf(displayRegexp) != -1)
+            displayIndex = displayRegexp.cap(1).toInt();
     }
 
     if (!attachDisplay(d, displayIndex))
         return false;
 
     qDebug("QQnxScreen: Attached to Display %d, resolution %dx%d, refresh %d Hz",
-            displayIndex, d->displayInfo.xres, d->displayInfo.yres,
-            d->displayInfo.refresh);
-
+            displayIndex, d->displayInfo.xres, d->displayInfo.yres, d->displayInfo.refresh);
 
     // default to main_layer_index from the displayInfo struct
-    int layerIndex = 0;
-    QRegExp layerRegexp(QLatin1String("^layer=(\\d+)$"));
-    if (params.indexOf(layerRegexp) != -1) {
-        layerIndex = layerRegexp.cap(1).toInt();
-    } else {
-        layerIndex = d->displayInfo.main_layer_index;
+    int layerIndex = d->displayInfo.main_layer_index;
+    if (!params.isEmpty()) {
+        QRegExp layerRegexp(QLatin1String("^layer=(\\d+)$"));
+        if (params.indexOf(layerRegexp) != -1)
+            layerIndex = layerRegexp.cap(1).toInt();
     }
 
     if (!attachLayer(d, layerIndex))
         return false;
 
+    // determine the pixel format and the pixel type
+    switch (d->displayInfo.format) {
+#if defined(QT_QWS_DEPTH_32) || defined(QT_QWS_DEPTH_GENERIC)
+        case GF_FORMAT_ARGB8888:
+            pixeltype = QScreen::BGRPixel;
+        // fall through
+        case GF_FORMAT_BGRA8888:
+            setPixelFormat(QImage::Format_ARGB32);
+            break;
+#endif
+#if defined(QT_QWS_DEPTH_24)
+        case GF_FORMAT_BGR888:
+            pixeltype = QScreen::BGRPixel;
+            setPixelFormat(QImage::Format_RGB888);
+            break;
+#endif
+#if defined(QT_QWS_DEPTH_16) || defined(QT_QWS_DEPTH_GENERIC)
+        case GF_FORMAT_PACK_RGB565:
+        case GF_FORMAT_PKLE_RGB565:
+        case GF_FORMAT_PKBE_RGB565:
+#if Q_BYTE_ORDER == Q_BIG_ENDIAN
+            setFrameBufferLittleEndian((d->displayInfo.format & GF_FORMAT_PKLE) == GF_FORMAT_PKLE);
+#endif
+            setPixelFormat(QImage::Format_RGB16);
+            break;
+#endif
+        default:
+            return false;
+    }
+
     // tell QWSDisplay the width and height of the display
     w = dw = d->displayInfo.xres;
     h = dh = d->displayInfo.yres;
-
-    // we only support 32 bit displays for now.
-    QScreen::d = 32;
+    QScreen::d = (d->displayInfo.format & GF_FORMAT_BPP);  // colour depth
 
     // assume 72 dpi as default, to calculate the physical dimensions if not specified
     const int defaultDpi = 72;
-
-    // Handle display physical size spec.
-    QRegExp mmWidthRegexp(QLatin1String("^mmWidth=(\\d+)$"));
-    if (params.indexOf(mmWidthRegexp) == -1) {
-        physWidth = qRound(dw * 25.4 / defaultDpi);
-    } else {
-        physWidth = mmWidthRegexp.cap(1).toInt();
+    // Handle display physical size
+    physWidth = qRound(dw * 25.4 / defaultDpi);
+    physHeight = qRound(dh * 25.4 / defaultDpi);
+    if (!params.isEmpty()) {
+        QRegExp mmWidthRegexp(QLatin1String("^mmWidth=(\\d+)$"));
+        if (params.indexOf(mmWidthRegexp) != -1)
+            physWidth = mmWidthRegexp.cap(1).toInt();
+
+        QRegExp mmHeightRegexp(QLatin1String("^mmHeight=(\\d+)$"));
+        if (params.indexOf(mmHeightRegexp) != -1)
+            physHeight = mmHeightRegexp.cap(1).toInt();
     }
 
-    QRegExp mmHeightRegexp(QLatin1String("^mmHeight=(\\d+)$"));
-    if (params.indexOf(mmHeightRegexp) == -1) {
-        physHeight = qRound(dh * 25.4 / defaultDpi);
-    } else {
-        physHeight = mmHeightRegexp.cap(1).toInt();
+    if (QApplication::type() == QApplication::GuiServer) {
+        // create a hardware surface with our dimensions. In the old days, it was possible
+        // to get a pointer directly to the hw surface, so we could blit directly. Now, we
+        // have to use one indirection more, because it's not guaranteed that the hw surface
+        // is mappable into our process.
+        if (!createHwSurface(d, w, h))
+            return false;
     }
 
-    // create a hardware surface with our dimensions. In the old days, it was possible
-    // to get a pointer directly to the hw surface, so we could blit directly. Now, we
-    // have to use one indirection more, because it's not guaranteed that the hw surface
-    // is mappable into our process.
-    if (!createHwSurface(d, w, h))
-        return false;
-
     // create an in-memory linear surface that is used by QWS. QWS will blit directly in here.
     if (!createMemSurface(d, w, h))
         return false;
@@ -338,72 +415,84 @@ bool QQnxScreen::connect(const QString &displaySpec)
     // the overall size of the in-memory buffer is linestep * height
     size = mapsize = lstep * h;
 
-    // create a QNX drawing context
-    if (!createContext(d))
-        return false;
-
-    // we're always using a software cursor for now. Initialize it here.
-    QScreenCursor::initSoftwareCursor();
-
     // done, the driver should be connected to the display now.
     return true;
 }
 
-/*! \reimp
- */
+/*!
+    \reimp
+*/
 void QQnxScreen::disconnect()
 {
-    if (d->context)
-        gf_context_free(d->context);
-
-    if (d->memSurface)
-        gf_surface_free(d->memSurface);
-
-    if (d->hwSurface)
-        gf_surface_free(d->hwSurface);
-
-    if (d->layer)
-        gf_layer_detach(d->layer);
-
-    if (d->display)
-        gf_display_detach(d->display);
-
-    if (d->device)
-        gf_dev_detach(d->device);
-
-    d->memSurface = 0;
-    d->hwSurface = 0;
-    d->context = 0;
-    d->layer = 0;
-    d->display = 0;
-    d->device = 0;
+    d->cleanup();
 }
 
-/*! \reimp
- */
+/*!
+    \reimp
+*/
 void QQnxScreen::shutdownDevice()
 {
 }
 
-
-/*! \reimp
-  QQnxScreen doesn't support setting the mode, use io-display instead.
- */
+/*!
+    \reimp
+    QQnxScreen doesn't support setting the mode, use io-display instead.
+*/
 void QQnxScreen::setMode(int,int,int)
 {
     qWarning("QQnxScreen: Unable to change mode, use io-display instead.");
 }
 
-/*! \reimp
- */
+/*!
+    \reimp
+*/
 bool QQnxScreen::supportsDepth(int depth) const
 {
-    // only 32-bit for the moment
-    return depth == 32;
+    gf_modeinfo_t displayMode;
+    for (int i = 0; gf_display_query_mode(d->display, i, &displayMode) == GF_ERR_OK; ++i) {
+        switch (displayMode.primary_format) {
+#if defined(QT_QWS_DEPTH_32) || defined(QT_QWS_DEPTH_GENERIC)
+            case GF_FORMAT_ARGB8888:
+            case GF_FORMAT_BGRA8888:
+                if (depth == 32)
+                    return true;
+                break;
+#endif
+#if defined(QT_QWS_DEPTH_24)
+            case GF_FORMAT_BGR888:
+                if (depth == 24)
+                    return true;
+                break;
+#endif
+#if defined(QT_QWS_DEPTH_16) || defined(QT_QWS_DEPTH_GENERIC)
+            case GF_FORMAT_PACK_RGB565:
+            case GF_FORMAT_PKLE_RGB565:
+            case GF_FORMAT_PKBE_RGB565:
+                if (depth == 16)
+                    return true;
+                break;
+#endif
+            default:
+                break;
+        }
+    }
+
+    return false;
 }
 
-/*! \reimp
- */
+/*!
+    \reimp
+*/
+void QQnxScreen::blank(bool on)
+{
+    int ret = gf_display_set_dpms(d->display, on ? GF_DPMS_OFF : GF_DPMS_ON);
+    if (ret != GF_ERR_OK)
+        qWarning("QQnxScreen: gf_display_set_dpms() failed with error code %d", ret);
+}
+
+/*!
+    \reimp
+*/
 void QQnxScreen::exposeRegion(QRegion r, int changing)
 {
     // here is where the actual magic happens. QWS will call exposeRegion whenever
@@ -414,6 +503,10 @@ void QQnxScreen::exposeRegion(QRegion r, int changing)
     QScreen::exposeRegion(r, changing);
 
     // now our in-memory surface should be up to date with the latest changes.
+
+    if (!d->hwSurface)
+        return;
+
     // the code below copies the region from the in-memory surface to the hardware.
 
     // just get the bounding rectangle of the region. Most screen updates are rectangular
@@ -432,16 +525,14 @@ void QQnxScreen::exposeRegion(QRegion r, int changing)
 
     // blit the changed region from the memory surface to the hardware surface
     ret = gf_draw_blit2(d->context, d->memSurface, d->hwSurface,
-            br.x(), br.y(), br.right(), br.bottom(), br.x(), br.y());
-    if (ret != GF_ERR_OK) {
+                        br.x(), br.y(), br.right(), br.bottom(), br.x(), br.y());
+    if (ret != GF_ERR_OK)
         qWarning("QQnxScreen: gf_draw_blit2() failed with error code %d", ret);
-    }
 
     // flush all drawing commands (in our case, a single blit)
     ret = gf_draw_flush(d->context);
-    if (ret != GF_ERR_OK) {
+    if (ret != GF_ERR_OK)
         qWarning("QQnxScreen: gf_draw_flush() failed with error code %d", ret);
-    }
 
     // tell QNX that we're done drawing.
     gf_draw_end(d->context);
diff --git a/src/gui/embedded/qscreenqnx_qws.h b/src/gui/embedded/qscreenqnx_qws.h
index 38c0ac9..6f6d18a 100644
--- a/src/gui/embedded/qscreenqnx_qws.h
+++ b/src/gui/embedded/qscreenqnx_qws.h
@@ -66,6 +66,7 @@ public:
     void shutdownDevice();
     void setMode(int,int,int);
     bool supportsDepth(int) const;
+    void blank(bool on);
 
     void exposeRegion(QRegion r, int changing);
 
diff --git a/src/gui/embedded/qwslock.cpp b/src/gui/embedded/qwslock.cpp
index c14f50b..f9ea000 100644
--- a/src/gui/embedded/qwslock.cpp
+++ b/src/gui/embedded/qwslock.cpp
@@ -45,12 +45,15 @@
 
 #include "qwssignalhandler_p.h"
 
+#include <stdint.h>
 #include <stdio.h>
 #include <errno.h>
 #include <string.h>
 #include <sys/types.h>
 #include <sys/ipc.h>
+#ifndef QT_POSIX_IPC
 #include <sys/sem.h>
+#endif
 #include <sys/time.h>
 #include <time.h>
 #ifdef Q_OS_LINUX
@@ -66,6 +69,12 @@ QT_BEGIN_NAMESPACE
 #error QWSLock currently requires semaphores
 #endif
 
+#ifdef QT_POSIX_IPC
+#include <QtCore/QAtomicInt>
+
+static QBasicAtomicInt localUniqueId = Q_BASIC_ATOMIC_INITIALIZER(1);
+#endif
+
 QWSLock::QWSLock(int id) : semId(id)
 {
     static unsigned short initialValues[3] = { 1, 1, 0 };
@@ -74,6 +83,7 @@ QWSLock::QWSLock(int id) : semId(id)
     QWSSignalHandler::instance()->addWSLock(this);
 #endif
 
+#ifndef QT_POSIX_IPC
     if (semId == -1) {
         semId = semget(IPC_PRIVATE, 3, IPC_CREAT | 0666);
         if (semId == -1) {
@@ -88,6 +98,30 @@ QWSLock::QWSLock(int id) : semId(id)
             qFatal("Unable to initialize semaphores");
         }
     }
+#else
+    sems[0] = sems[1] = sems[2] = SEM_FAILED;
+    owned = false;
+
+    if (semId == -1) {
+        // ### generate really unique IDs
+        semId = (getpid() << 16) + (localUniqueId.fetchAndAddRelaxed(1) % ushort(-1));
+        owned = true;
+    }
+
+    QByteArray pfx = "/qwslock_" + QByteArray::number(semId, 16) + '_';
+    QByteArray keys[3] = { pfx + "BackingStore", pfx + "Communication", pfx + "RegionEvent" };
+    for (int i = 0; i < 3; ++i) {
+        if (owned)
+            sem_unlink(keys[i].constData());
+        do {
+            sems[i] = sem_open(keys[i].constData(), (owned ? O_CREAT : 0), 0666, initialValues[i]);
+        } while (sems[i] == SEM_FAILED && errno == EINTR);
+        if (sems[i] == SEM_FAILED) {
+            perror("QWSLock::QWSLock");
+            qFatal("Unable to %s semaphore", (owned ? "create" : "open"));
+        }
+    }
+#endif
 
     lockCount[0] = lockCount[1] = 0;
 }
@@ -99,10 +133,27 @@ QWSLock::~QWSLock()
 #endif
 
     if (semId != -1) {
+#ifndef QT_POSIX_IPC
         qt_semun semval;
         semval.val = 0;
         semctl(semId, 0, IPC_RMID, semval);
         semId = -1;
+#else
+        // emulate the SEM_UNDO behavior for the BackingStore lock
+        while (hasLock(BackingStore))
+            unlock(BackingStore);
+
+        QByteArray pfx = "/qwslock_" + QByteArray::number(semId, 16) + '_';
+        QByteArray keys[3] = { pfx + "BackingStore", pfx + "Communication", pfx + "RegionEvent" };
+        for (int i = 0; i < 3; ++i) {
+            if (sems[i] != SEM_FAILED) {
+                sem_close(sems[i]);
+                sems[i] = SEM_FAILED;
+            }
+            if (owned)
+                sem_unlink(keys[i].constData());
+        }
+#endif
     }
 }
 
@@ -110,6 +161,7 @@ bool QWSLock::up(unsigned short semNum)
 {
     int ret;
 
+#ifndef QT_POSIX_IPC
     sembuf sops = { semNum, 1, 0 };
     // As the BackingStore lock is a mutex, and only one process may own
     // the lock, it's safe to use SEM_UNDO. On the other hand, the
@@ -119,6 +171,9 @@ bool QWSLock::up(unsigned short semNum)
         sops.sem_flg |= SEM_UNDO;
 
     EINTR_LOOP(ret, semop(semId, &sops, 1));
+#else
+    ret = sem_post(sems[semNum]);
+#endif
     if (ret == -1) {
         qDebug("QWSLock::up(): %s", strerror(errno));
         return false;
@@ -131,6 +186,7 @@ bool QWSLock::down(unsigned short semNum, int)
 {
     int ret;
 
+#ifndef QT_POSIX_IPC
     sembuf sops = { semNum, -1, 0 };
     // As the BackingStore lock is a mutex, and only one process may own
     // the lock, it's safe to use SEM_UNDO. On the other hand, the
@@ -140,6 +196,9 @@ bool QWSLock::down(unsigned short semNum, int)
         sops.sem_flg |= SEM_UNDO;
 
     EINTR_LOOP(ret, semop(semId, &sops, 1));
+#else
+    EINTR_LOOP(ret, sem_wait(sems[semNum]));
+#endif
     if (ret == -1) {
         qDebug("QWSLock::down(): %s", strerror(errno));
         return false;
@@ -150,7 +209,13 @@ bool QWSLock::down(unsigned short semNum, int)
 
 int QWSLock::getValue(unsigned short semNum) const
 {
-    int ret = semctl(semId, semNum, GETVAL, 0);
+    int ret;
+#ifndef QT_POSIX_IPC
+    ret = semctl(semId, semNum, GETVAL, 0);
+#else
+    if (sem_getvalue(sems[semNum], &ret) == -1)
+        ret = -1;
+#endif
     if (ret == -1)
         qDebug("QWSLock::getValue(): %s", strerror(errno));
     return ret;
diff --git a/src/gui/embedded/qwslock_p.h b/src/gui/embedded/qwslock_p.h
index d020b22..71a4cca 100644
--- a/src/gui/embedded/qwslock_p.h
+++ b/src/gui/embedded/qwslock_p.h
@@ -57,6 +57,10 @@
 
 #ifndef QT_NO_QWS_MULTIPROCESS
 
+#ifdef QT_POSIX_IPC
+#  include <semaphore.h>
+#endif
+
 QT_BEGIN_NAMESPACE
 
 class QWSLock
@@ -80,6 +84,10 @@ private:
 
     int semId;
     int lockCount[2];
+#ifdef QT_POSIX_IPC
+    sem_t *sems[3];
+    bool owned;
+#endif
 };
 
 QT_END_NAMESPACE
diff --git a/src/gui/embedded/qwssharedmemory.cpp b/src/gui/embedded/qwssharedmemory.cpp
index a677626..853de61 100644
--- a/src/gui/embedded/qwssharedmemory.cpp
+++ b/src/gui/embedded/qwssharedmemory.cpp
@@ -45,14 +45,37 @@
 
 #include <sys/types.h>
 #include <sys/ipc.h>
+#ifndef QT_POSIX_IPC
 #include <sys/shm.h>
+#else
+#include <sys/mman.h>
+#include <sys/stat.h>
+#endif
+#include <fcntl.h>
+#include <unistd.h>
+
+#include <private/qcore_unix_p.h>
 
 //#define QT_SHM_DEBUG
 
 QT_BEGIN_NAMESPACE
 
+#ifdef QT_POSIX_IPC
+#include <QtCore/QAtomicInt>
+
+static QBasicAtomicInt localUniqueId = Q_BASIC_ATOMIC_INITIALIZER(1);
+
+static inline QByteArray makeKey(int id)
+{
+    return "/qwsshm_" + QByteArray::number(id, 16);
+}
+#endif
+
 QWSSharedMemory::QWSSharedMemory()
     : shmId(-1), shmBase(0), shmSize(0)
+#ifdef QT_POSIX_IPC
+    , hand(-1)
+#endif
 {
 }
 
@@ -66,19 +89,47 @@ bool QWSSharedMemory::create(int size)
     if (shmId != -1)
         detach();
 
+#ifndef QT_POSIX_IPC
     shmId = shmget(IPC_PRIVATE, size, IPC_CREAT | 0600);
+#else
+    // ### generate really unique IDs
+    shmId = (getpid() << 16) + (localUniqueId.fetchAndAddRelaxed(1) % ushort(-1));
+    QByteArray shmName = makeKey(shmId);
+    EINTR_LOOP(hand, shm_open(shmName.constData(), O_RDWR | O_CREAT, 0660));
+    if (hand != -1) {
+        // the size may only be set once; ignore errors
+        int ret;
+        EINTR_LOOP(ret, ftruncate(hand, size));
+        if (ret == -1)
+            shmId = -1;
+    } else {
+        shmId = -1;
+    }
+#endif
     if (shmId == -1) {
 #ifdef QT_SHM_DEBUG
         perror("QWSSharedMemory::create():");
         qWarning("Error allocating shared memory of size %d", size);
 #endif
+        detach();
         return false;
     }
+
+#ifndef QT_POSIX_IPC
     shmBase = shmat(shmId, 0, 0);
     // On Linux, it is possible to attach a shared memory segment even if it
     // is already marked to be deleted. However, POSIX.1-2001 does not specify
     // this behaviour and many other implementations do not support it.
     shmctl(shmId, IPC_RMID, 0);
+#else
+    // grab the size
+    QT_STATBUF st;
+    if (QT_FSTAT(hand, &st) != -1) {
+        shmSize = st.st_size;
+        // grab the memory
+        shmBase = mmap(0, shmSize, PROT_READ | PROT_WRITE, MAP_SHARED, hand, 0);
+    }
+#endif
     if (shmBase == (void*)-1 || !shmBase) {
 #ifdef QT_SHM_DEBUG
         perror("QWSSharedMemory::create():");
@@ -102,7 +153,21 @@ bool QWSSharedMemory::attach(int id)
         return false;
 
     shmId = id;
+#ifndef QT_POSIX_IPC
     shmBase = shmat(shmId, 0, 0);
+#else
+    QByteArray shmName = makeKey(shmId);
+    EINTR_LOOP(hand, shm_open(shmName.constData(), O_RDWR, 0660));
+    if (hand != -1) {
+        // grab the size
+        QT_STATBUF st;
+        if (QT_FSTAT(hand, &st) != -1) {
+            shmSize = st.st_size;
+            // grab the memory
+            shmBase = mmap(0, shmSize, PROT_READ | PROT_WRITE, MAP_SHARED, hand, 0);
+        }
+    }
+#endif
     if (shmBase == (void*)-1 || !shmBase) {
 #ifdef QT_SHM_DEBUG
         perror("QWSSharedMemory::attach():");
@@ -117,8 +182,28 @@ bool QWSSharedMemory::attach(int id)
 
 void QWSSharedMemory::detach()
 {
+#ifndef QT_POSIX_IPC
     if (shmBase && shmBase != (void*)-1)
         shmdt(shmBase);
+#else
+    if (shmBase && shmBase != (void*)-1)
+        munmap(shmBase, shmSize);
+    if (hand > 0) {
+        // get the number of current attachments
+        int shm_nattch = 0;
+        QT_STATBUF st;
+        if (QT_FSTAT(hand, &st) == 0) {
+            // subtract 2 from linkcount: one for our own open and one for the dir entry
+            shm_nattch = st.st_nlink - 2;
+        }
+        qt_safe_close(hand);
+        // if there are no attachments then unlink the shared memory
+        if (shm_nattch == 0) {
+            QByteArray shmName = makeKey(shmId);
+            shm_unlink(shmName.constData());
+        }
+    }
+#endif
     shmBase = 0;
     shmSize = 0;
     shmId = -1;
@@ -129,11 +214,13 @@ int QWSSharedMemory::size() const
     if (shmId == -1)
         return 0;
 
+#ifndef QT_POSIX_IPC
     if (!shmSize) {
         struct shmid_ds shm;
         shmctl(shmId, IPC_STAT, &shm);
-        const_cast<QWSSharedMemory *>(this)->shmSize = shm.shm_segsz;
+        shmSize = shm.shm_segsz;
     }
+#endif
 
     return shmSize;
 }
diff --git a/src/gui/embedded/qwssharedmemory_p.h b/src/gui/embedded/qwssharedmemory_p.h
index f3ce241..42ef6c8 100644
--- a/src/gui/embedded/qwssharedmemory_p.h
+++ b/src/gui/embedded/qwssharedmemory_p.h
@@ -77,7 +77,10 @@ public:
 private:
     int shmId;
     void *shmBase;
-    int shmSize;
+    mutable int shmSize;
+#ifdef QT_POSIX_IPC
+    int hand;
+#endif
 };
 
 #endif // QT_NO_QWS_MULTIPROCESS
diff --git a/src/gui/graphicsview/qgraphicslayout.cpp b/src/gui/graphicsview/qgraphicslayout.cpp
index 76d2d04..6fbe849 100644
--- a/src/gui/graphicsview/qgraphicslayout.cpp
+++ b/src/gui/graphicsview/qgraphicslayout.cpp
@@ -269,18 +269,8 @@ void QGraphicsLayout::activate()
         return;
     Q_ASSERT(!parentItem->isLayout());
 
-    if (QGraphicsLayout::instantInvalidatePropagation()) {
-        QGraphicsWidget *parentWidget = static_cast<QGraphicsWidget*>(parentItem);
-        if (!parentWidget->parentLayoutItem()) {
-            // we've reached the topmost widget, resize it
-            bool wasResized = parentWidget->testAttribute(Qt::WA_Resized);
-            parentWidget->resize(parentWidget->size());
-            parentWidget->setAttribute(Qt::WA_Resized, wasResized);
-        }
-
-        setGeometry(parentItem->contentsRect());    // relayout children
-    } else {
-        setGeometry(parentItem->contentsRect());    // relayout children
+    setGeometry(parentItem->contentsRect());    // relayout children
+    if (!QGraphicsLayout::instantInvalidatePropagation()) {
         parentLayoutItem()->updateGeometry();
     }
 }
diff --git a/src/gui/graphicsview/qgraphicswidget.cpp b/src/gui/graphicsview/qgraphicswidget.cpp
index 804394a..965b1b34 100644
--- a/src/gui/graphicsview/qgraphicswidget.cpp
+++ b/src/gui/graphicsview/qgraphicswidget.cpp
@@ -347,11 +347,10 @@ void QGraphicsWidget::setGeometry(const QRectF &rect)
 {
     QGraphicsWidgetPrivate *wd = QGraphicsWidget::d_func();
     QGraphicsLayoutItemPrivate *d = QGraphicsLayoutItem::d_ptr.data();
-    QRectF newGeom;
+    QRectF newGeom = rect;
     QPointF oldPos = d->geom.topLeft();
     if (!wd->inSetPos) {
         setAttribute(Qt::WA_Resized);
-        newGeom = rect;
         newGeom.setSize(rect.size().expandedTo(effectiveSizeHint(Qt::MinimumSize))
                                    .boundedTo(effectiveSizeHint(Qt::MaximumSize)));
 
@@ -405,14 +404,7 @@ void QGraphicsWidget::setGeometry(const QRectF &rect)
                 emit widthChanged();
             if (oldSize.height() != newGeom.size().height())
                 emit heightChanged();
-            QGraphicsLayout *lay = wd->layout;
-            if (QGraphicsLayout::instantInvalidatePropagation()) {
-                if (!lay || lay->isActivated()) {
-                    QApplication::sendEvent(this, &re);
-                }
-            } else {
-                QApplication::sendEvent(this, &re);
-            }
+            QApplication::sendEvent(this, &re);
         }
     }
 
@@ -1091,8 +1083,11 @@ void QGraphicsWidget::updateGeometry()
              * When the event is received, it will start flowing all the way down to the leaf
              * widgets in one go. This will make a relayout flicker-free.
              */
-            if (QGraphicsLayout::instantInvalidatePropagation())
-                QApplication::postEvent(static_cast<QGraphicsWidget *>(this), new QEvent(QEvent::LayoutRequest));
+            if (QGraphicsLayout::instantInvalidatePropagation()) {
+                Q_D(QGraphicsWidget);
+                ++d->refCountInvokeRelayout;
+                QMetaObject::invokeMethod(this, "_q_relayout", Qt::QueuedConnection);
+            }
         }
         if (!QGraphicsLayout::instantInvalidatePropagation()) {
             bool wasResized = testAttribute(Qt::WA_Resized);
diff --git a/src/gui/graphicsview/qgraphicswidget.h b/src/gui/graphicsview/qgraphicswidget.h
index 063be2d..5085817 100644
--- a/src/gui/graphicsview/qgraphicswidget.h
+++ b/src/gui/graphicsview/qgraphicswidget.h
@@ -234,6 +234,8 @@ protected:
 private:
     Q_DISABLE_COPY(QGraphicsWidget)
     Q_DECLARE_PRIVATE_D(QGraphicsItem::d_ptr.data(), QGraphicsWidget)
+    Q_PRIVATE_SLOT(d_func(), void _q_relayout())
+
     friend class QGraphicsScene;
     friend class QGraphicsScenePrivate;
     friend class QGraphicsView;
diff --git a/src/gui/graphicsview/qgraphicswidget_p.cpp b/src/gui/graphicsview/qgraphicswidget_p.cpp
index 8649dec..ca6713b 100644
--- a/src/gui/graphicsview/qgraphicswidget_p.cpp
+++ b/src/gui/graphicsview/qgraphicswidget_p.cpp
@@ -233,6 +233,18 @@ void QGraphicsWidgetPrivate::resolveLayoutDirection()
     }
 }
 
+/* private slot */
+void QGraphicsWidgetPrivate::_q_relayout()
+{
+    --refCountInvokeRelayout;
+    if (refCountInvokeRelayout == 0) {
+        Q_Q(QGraphicsWidget);
+        bool wasResized = q->testAttribute(Qt::WA_Resized);
+        q->resize(q->size()); // this will restrict the size
+        q->setAttribute(Qt::WA_Resized, wasResized);
+    }
+}
+
 QPalette QGraphicsWidgetPrivate::naturalWidgetPalette() const
 {
     Q_Q(const QGraphicsWidget);
@@ -903,4 +915,6 @@ void QGraphicsWidgetPrivate::setGeometryFromSetPos()
 
 QT_END_NAMESPACE
 
+#include "moc_qgraphicswidget.cpp"
+
 #endif //QT_NO_GRAPHICSVIEW
diff --git a/src/gui/graphicsview/qgraphicswidget_p.h b/src/gui/graphicsview/qgraphicswidget_p.h
index 398abc3..6ea2586 100644
--- a/src/gui/graphicsview/qgraphicswidget_p.h
+++ b/src/gui/graphicsview/qgraphicswidget_p.h
@@ -81,6 +81,7 @@ public:
           polished(0),
           inSetPos(0),
           autoFillBackground(0),
+          refCountInvokeRelayout(0),
           focusPolicy(Qt::NoFocus),
           focusNext(0),
           focusPrev(0),
@@ -106,6 +107,7 @@ public:
     QGraphicsLayout *layout;
     void setLayoutDirection_helper(Qt::LayoutDirection direction);
     void resolveLayoutDirection();
+    void _q_relayout();
 
     // Style
     QPalette palette;
@@ -179,11 +181,14 @@ public:
             return false;
         return (attributes & (1 << bit)) != 0;
     }
+    // 32 bits
+    quint32 refCountInvokeRelayout : 16;
     quint32 attributes : 10;
     quint32 inSetGeometry : 1;
     quint32 polished: 1;
     quint32 inSetPos : 1;
     quint32 autoFillBackground : 1;
+    quint32 padding : 2;    // feel free to use
 
     // Focus
     Qt::FocusPolicy focusPolicy;
diff --git a/src/gui/image/qpixmapdata_p.h b/src/gui/image/qpixmapdata_p.h
index 5b75aa1..f07843d 100644
--- a/src/gui/image/qpixmapdata_p.h
+++ b/src/gui/image/qpixmapdata_p.h
@@ -56,6 +56,10 @@
 #include <QtGui/qpixmap.h>
 #include <QtCore/qatomic.h>
 
+#ifdef Q_OS_SYMBIAN
+#include <QtGui/private/qvolatileimage_p.h>
+#endif
+
 QT_BEGIN_NAMESPACE
 
 class QImageReader;
@@ -135,6 +139,7 @@ public:
     }
 
 #if defined(Q_OS_SYMBIAN)
+    virtual QVolatileImage toVolatileImage() const { return QVolatileImage(); }
     virtual void* toNativeType(NativeType type);
     virtual void fromNativeType(void* pixmap, NativeType type);
 #endif
diff --git a/src/gui/inputmethod/qcoefepinputcontext_s60.cpp b/src/gui/inputmethod/qcoefepinputcontext_s60.cpp
index ebf0ff8..d603540 100644
--- a/src/gui/inputmethod/qcoefepinputcontext_s60.cpp
+++ b/src/gui/inputmethod/qcoefepinputcontext_s60.cpp
@@ -646,6 +646,7 @@ void QCoeFepInputContext::applyHints(Qt::InputMethodHints hints)
 {
     using namespace Qt;
 
+    reset();
     commitTemporaryPreeditString();
 
     const bool anynumbermodes = hints & (ImhDigitsOnly | ImhFormattedNumbersOnly | ImhDialableCharactersOnly);
diff --git a/src/gui/kernel/qapplication_qws.cpp b/src/gui/kernel/qapplication_qws.cpp
index abee361..3b6a075 100644
--- a/src/gui/kernel/qapplication_qws.cpp
+++ b/src/gui/kernel/qapplication_qws.cpp
@@ -209,7 +209,7 @@ QString qws_dataDir()
     if (!S_ISDIR(buf.st_mode))
         qFatal("%s is not a directory", dataDir.constData());
 
-#if !defined(Q_OS_INTEGRITY) && !defined(Q_OS_VXWORKS)
+#if !defined(Q_OS_INTEGRITY) && !defined(Q_OS_VXWORKS) && !defined(Q_OS_QNX)
     if (buf.st_uid != getuid())
         qFatal("Qt for Embedded Linux data directory is not owned by user %d", getuid());
 
diff --git a/src/gui/kernel/qapplication_s60.cpp b/src/gui/kernel/qapplication_s60.cpp
index 31d02d4..086cfec 100644
--- a/src/gui/kernel/qapplication_s60.cpp
+++ b/src/gui/kernel/qapplication_s60.cpp
@@ -1531,6 +1531,11 @@ void QSymbianControl::HandleResourceChange(int resourceType)
             QResizeEvent e(qt_desktopWidget->size(), qt_desktopWidget->size());
             QApplication::sendEvent(qt_desktopWidget, &e);
         }
+        // Send resize event to dialogs so they can adjust their position if necessary.
+        if (qwidget->windowType() & Qt::Dialog) {
+            QResizeEvent e(qwidget->size(), qwidget->size());
+            QApplication::sendEvent(qwidget, &e);
+        }
         break;
     }
 #endif
diff --git a/src/gui/kernel/qwidget_mac.mm b/src/gui/kernel/qwidget_mac.mm
index 778f1f1..b3bf365 100644
--- a/src/gui/kernel/qwidget_mac.mm
+++ b/src/gui/kernel/qwidget_mac.mm
@@ -4551,6 +4551,11 @@ void QWidgetPrivate::setGeometry_sys_helper(int x, int y, int w, int h, bool isM
 
     QPoint oldp = q->pos();
     QSize  olds = q->size();
+    // Apply size restrictions, applicable for Windows & Widgets.
+    if (QWExtra *extra = extraData()) {
+        w = qBound(extra->minw, w, extra->maxw);
+        h = qBound(extra->minh, h, extra->maxh);
+    }
     const bool isResize = (olds != QSize(w, h));
 
     if (!realWindow && !isResize && QPoint(x, y) == oldp)
@@ -4560,13 +4565,6 @@ void QWidgetPrivate::setGeometry_sys_helper(int x, int y, int w, int h, bool isM
         data.window_state = data.window_state & ~Qt::WindowMaximized;
 
     const bool visible = q->isVisible();
-    // Apply size restrictions, applicable for Windows & Widgets.
-    if (QWExtra *extra = extraData()) {
-        w = qMin(w, extra->maxw);
-        h = qMin(h, extra->maxh);
-        w = qMax(w, extra->minw);
-        h = qMax(h, extra->minh);
-    }
     data.crect = QRect(x, y, w, h);
 
     if (realWindow) {
diff --git a/src/gui/painting/qwindowsurface_qws.cpp b/src/gui/painting/qwindowsurface_qws.cpp
index 7e8cf9b..3789a33 100644
--- a/src/gui/painting/qwindowsurface_qws.cpp
+++ b/src/gui/painting/qwindowsurface_qws.cpp
@@ -1065,10 +1065,12 @@ bool QWSSharedMemSurface::setMemory(int memId)
         return true;
 
     mem.detach();
-    if (!mem.attach(memId)) {
+
+    if (memId != -1 && !mem.attach(memId)) {
+#ifndef QT_NO_DEBUG
         perror("QWSSharedMemSurface: attaching to shared memory");
-        qCritical("QWSSharedMemSurface: Error attaching to"
-                  " shared memory 0x%x", memId);
+        qCritical("QWSSharedMemSurface: Error attaching to shared memory 0x%x", memId);
+#endif
         return false;
     }
 
diff --git a/src/gui/text/qfontdatabase_qws.cpp b/src/gui/text/qfontdatabase_qws.cpp
index c83e929..313000f 100644
--- a/src/gui/text/qfontdatabase_qws.cpp
+++ b/src/gui/text/qfontdatabase_qws.cpp
@@ -75,6 +75,11 @@
 #include <qresource.h>
 #endif
 
+#ifdef Q_OS_QNX
+// ### using QFontEngineQPF leads to artifacts on QNX
+#  define QT_NO_QWS_SHARE_FONTS
+#endif
+
 QT_BEGIN_NAMESPACE
 
 #ifndef QT_NO_LIBRARY
diff --git a/src/network/access/qnetworkcookiejar.cpp b/src/network/access/qnetworkcookiejar.cpp
index a2fa689..1a5f73b 100644
--- a/src/network/access/qnetworkcookiejar.cpp
+++ b/src/network/access/qnetworkcookiejar.cpp
@@ -220,20 +220,33 @@ bool QNetworkCookieJar::setCookiesFromUrl(const QList<QNetworkCookie> &cookieLis
                 continue; // not accepted
         }
 
-        QList<QNetworkCookie>::Iterator it = d->allCookies.begin(),
-                                       end = d->allCookies.end();
-        for ( ; it != end; ++it)
+        for (int i = 0; i < d->allCookies.size(); ++i) {
             // does this cookie already exist?
-            if (cookie.name() == it->name() &&
-                cookie.domain() == it->domain() &&
-                cookie.path() == it->path()) {
+            const QNetworkCookie &current = d->allCookies.at(i);
+            if (cookie.name() == current.name() &&
+                cookie.domain() == current.domain() &&
+                cookie.path() == current.path()) {
                 // found a match
-                d->allCookies.erase(it);
+                d->allCookies.removeAt(i);
                 break;
             }
+        }
 
         // did not find a match
         if (!isDeletion) {
+            int countForDomain = 0;
+            for (int i = d->allCookies.size() - 1; i >= 0; --i) {
+                // Start from the end and delete the oldest cookies to keep a maximum count of 50.
+                const QNetworkCookie &current = d->allCookies.at(i);
+                if (isParentDomain(cookie.domain(), current.domain())
+                    || isParentDomain(current.domain(), cookie.domain())) {
+                    if (countForDomain >= 49)
+                        d->allCookies.removeAt(i);
+                    else
+                        ++countForDomain;
+                }
+            }
+
             d->allCookies += cookie;
             ++added;
         }
diff --git a/src/network/socket/qsymbiansocketengine.cpp b/src/network/socket/qsymbiansocketengine.cpp
index 15635ff..edd5d6e 100644
--- a/src/network/socket/qsymbiansocketengine.cpp
+++ b/src/network/socket/qsymbiansocketengine.cpp
@@ -196,8 +196,14 @@ bool QSymbianSocketEnginePrivate::createNewSocket(QAbstractSocket::SocketType so
 #ifdef QNATIVESOCKETENGINE_DEBUG
         qDebug() << "QSymbianSocketEnginePrivate::createNewSocket - _q_networksession was set" << err;
 #endif
-    } else
-        err = nativeSocket.Open(socketServer, family, type, protocol); //TODO: FIXME - deprecated API, make sure we always have a connection instead
+    } else {
+#ifdef QNATIVESOCKETENGINE_DEBUG
+        qDebug() << "QSymbianSocketEnginePrivate::createNewSocket - _q_networksession was not set, using implicit connection";
+#endif
+        // using implicit connection allows localhost connections without starting any RConnection, see QTBUG-16155 and QTBUG-16843
+        // when a remote address is used, socket server will start the system default connection if there is no route.
+        err = nativeSocket.Open(socketServer, family, type, protocol);
+    }
 
     if (err != KErrNone) {
         switch (err) {
@@ -564,12 +570,12 @@ bool QSymbianSocketEngine::connectToHostByName(const QString &name, quint16 port
     If there's a connection activity on the socket, process it. Then
     notify our parent if there really was activity.
 */
-void QSymbianSocketEngine::connectionNotification()
+void QSymbianSocketEngine::connectionComplete()
 {
-    // FIXME check if we really need to do it like that in Symbian
     Q_D(QSymbianSocketEngine);
     Q_ASSERT(state() == QAbstractSocket::ConnectingState);
 
+    // as it was a non blocking connect, call again to find the result.
     connectToHost(d->peerAddress, d->peerPort);
     if (state() != QAbstractSocket::ConnectingState) {
         // we changed states
@@ -906,7 +912,6 @@ qint64 QSymbianSocketEngine::writeDatagram(const char *data, qint64 len,
     return sentBytes();
 }
 
-// FIXME check where the native socket engine called that..
 bool QSymbianSocketEnginePrivate::fetchConnectionParameters()
 {
     localPort = 0;
@@ -990,9 +995,15 @@ void QSymbianSocketEngine::close()
         d->asyncSelect = 0;
     }
 
-    //TODO: call nativeSocket.Shutdown(EImmediate) in some cases?
+    //RSocket::Shutdown(EImmediate) performs a fast disconnect. For TCP,
+    //this would mean sending RST rather than FIN so we don't do that.
+    //Qt's disconnectFromHost() API doesn't expose this choice.
+    //RSocket::Close will internally do a normal shutdown of the socket.
     if (d->socketType == QAbstractSocket::UdpSocket) {
-        //TODO: Close hangs without this, but only for UDP - why?
+        //RSocket::Close has been observed to block for a long time with
+        //UDP sockets. Doing an immediate shutdown first works around this
+        //problem. Since UDP is connectionless, there should be no difference
+        //at the network interface.
         TRequestStatus stat;
         d->nativeSocket.Shutdown(RSocket::EImmediate, stat);
         User::WaitForRequest(stat);
@@ -1189,7 +1200,6 @@ int QSymbianSocketEnginePrivate::nativeSelect(int timeout, bool checkRead, bool
 #endif
     }
     if (err) {
-        //TODO: avoidable cast?
         //set the error here, because read won't always return the same error again as select.
         const_cast<QSymbianSocketEnginePrivate*>(this)->setError(err);
         //restart asynchronous notifier (only one IOCTL allowed at a time)
@@ -1265,7 +1275,7 @@ bool QSymbianSocketEnginePrivate::multicastGroupMembershipHelper(const QHostAddr
 
 QNetworkInterface QSymbianSocketEngine::multicastInterface() const
 {
-    //TODO
+    //### symbian 3 has no API equivalent to this
     const Q_D(QSymbianSocketEngine);
     Q_CHECK_VALID_SOCKETLAYER(QSymbianSocketEngine::multicastInterface(), QNetworkInterface());
     Q_CHECK_TYPE(QSymbianSocketEngine::multicastInterface(), QAbstractSocket::UdpSocket, QNetworkInterface());
@@ -1274,7 +1284,8 @@ QNetworkInterface QSymbianSocketEngine::multicastInterface() const
 
 bool QSymbianSocketEngine::setMulticastInterface(const QNetworkInterface &iface)
 {
-    //TODO - this is possibly a unix'ism as the RConnection on which the socket was created is probably controlling this
+    //### symbian 3 has no API equivalent to this
+    //this is possibly a unix'ism as the RConnection on which the socket was created is probably controlling this
     Q_D(QSymbianSocketEngine);
     Q_CHECK_VALID_SOCKETLAYER(QSymbianSocketEngine::setMulticastInterface(), false);
     Q_CHECK_TYPE(QSymbianSocketEngine::setMulticastInterface(), QAbstractSocket::UdpSocket, false);
@@ -1711,7 +1722,7 @@ void QAsyncSelect::run()
     if (engine && engine->isWriteNotificationEnabled()
         && ((m_selectBuf() & KSockSelectWrite) || iStatus != KErrNone)) {
         if (engine->state() == QAbstractSocket::ConnectingState)
-            engine->connectionNotification();
+            engine->connectionComplete();
         else
             engine->writeNotification();
     }
diff --git a/src/network/socket/qsymbiansocketengine_p.h b/src/network/socket/qsymbiansocketengine_p.h
index 81156fc..3b39096 100644
--- a/src/network/socket/qsymbiansocketengine_p.h
+++ b/src/network/socket/qsymbiansocketengine_p.h
@@ -136,10 +136,7 @@ public:
 
     Q_INVOKABLE void startNotifications();
 
-public Q_SLOTS:
-    // TODO: Why do we do this? This is private Qt implementation stuff anyway, no need for it
-    // non-virtual override;
-    void connectionNotification();
+    void connectionComplete();
 
 private:
     Q_DECLARE_PRIVATE(QSymbianSocketEngine)
diff --git a/src/network/ssl/qsslsocket_openssl.cpp b/src/network/ssl/qsslsocket_openssl.cpp
index 4747f29..9a137a6 100644
--- a/src/network/ssl/qsslsocket_openssl.cpp
+++ b/src/network/ssl/qsslsocket_openssl.cpp
@@ -1338,9 +1338,9 @@ bool QSslSocketBackendPrivate::startHandshake()
         sslErrors.clear();
     }
 
-    // if we have a max read buffer size, reset the plain socket's to 16k
+    // if we have a max read buffer size, reset the plain socket's to 32k
     if (readBufferMaxSize)
-        plainSocket->setReadBufferSize(16384);
+        plainSocket->setReadBufferSize(32768);
 
     connectionEncrypted = true;
     emit q->encrypted();
diff --git a/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp b/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp
index 9ce7d55..52450b6 100644
--- a/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp
+++ b/src/opengl/gl2paintengineex/qpaintengineex_opengl2.cpp
@@ -1386,14 +1386,11 @@ void QGL2PaintEngineEx::drawPixmap(const QRectF& dest, const QPixmap & pixmap, c
     ensureActive();
     d->transferMode(ImageDrawingMode);
 
-    QGLContext::BindOptions bindOptions = QGLContext::InternalBindOption|QGLContext::CanFlipNativePixmapBindOption;
-#ifdef QGL_USE_TEXTURE_POOL
-    bindOptions |= QGLContext::TemporarilyCachedBindOption;
-#endif
-
     glActiveTexture(GL_TEXTURE0 + QT_IMAGE_TEXTURE_UNIT);
     QGLTexture *texture =
-        ctx->d_func()->bindTexture(pixmap, GL_TEXTURE_2D, GL_RGBA, bindOptions);
+        ctx->d_func()->bindTexture(pixmap, GL_TEXTURE_2D, GL_RGBA,
+                                    QGLContext::InternalBindOption
+                                    | QGLContext::CanFlipNativePixmapBindOption);
 
     GLfloat top = texture->options & QGLContext::InvertedYBindOption ? (pixmap.height() - src.top()) : src.top();
     GLfloat bottom = texture->options & QGLContext::InvertedYBindOption ? (pixmap.height() - src.bottom()) : src.bottom();
@@ -1405,12 +1402,6 @@ void QGL2PaintEngineEx::drawPixmap(const QRectF& dest, const QPixmap & pixmap, c
     d->updateTextureFilter(GL_TEXTURE_2D, GL_CLAMP_TO_EDGE,
                            state()->renderHints & QPainter::SmoothPixmapTransform, texture->id);
     d->drawTexture(dest, srcRect, pixmap.size(), isOpaque, isBitmap);
-
-    if (texture->options&QGLContext::TemporarilyCachedBindOption) {
-        // pixmap was temporarily cached as a QImage texture by pooling system
-        // and should be destroyed immediately
-        QGLTextureCache::instance()->remove(ctx, texture->id);
-    }
 }
 
 void QGL2PaintEngineEx::drawImage(const QRectF& dest, const QImage& image, const QRectF& src,
@@ -1435,23 +1426,12 @@ void QGL2PaintEngineEx::drawImage(const QRectF& dest, const QImage& image, const
 
     glActiveTexture(GL_TEXTURE0 + QT_IMAGE_TEXTURE_UNIT);
 
-    QGLContext::BindOptions bindOptions = QGLContext::InternalBindOption;
-#ifdef QGL_USE_TEXTURE_POOL
-    bindOptions |= QGLContext::TemporarilyCachedBindOption;
-#endif
-
-    QGLTexture *texture = ctx->d_func()->bindTexture(image, GL_TEXTURE_2D, GL_RGBA, bindOptions);
+    QGLTexture *texture = ctx->d_func()->bindTexture(image, GL_TEXTURE_2D, GL_RGBA, QGLContext::InternalBindOption);
     GLuint id = texture->id;
 
     d->updateTextureFilter(GL_TEXTURE_2D, GL_CLAMP_TO_EDGE,
                            state()->renderHints & QPainter::SmoothPixmapTransform, id);
     d->drawTexture(dest, src, image.size(), !image.hasAlphaChannel());
-
-    if (texture->options&QGLContext::TemporarilyCachedBindOption) {
-        // image was temporarily cached by texture pooling system
-        // and should be destroyed immediately
-        QGLTextureCache::instance()->remove(ctx, texture->id);
-    }
 }
 
 void QGL2PaintEngineEx::drawStaticTextItem(QStaticTextItem *textItem)
diff --git a/src/opengl/gl2paintengineex/qtriangulator.cpp b/src/opengl/gl2paintengineex/qtriangulator.cpp
index 7c3be2b..5293eff 100644
--- a/src/opengl/gl2paintengineex/qtriangulator.cpp
+++ b/src/opengl/gl2paintengineex/qtriangulator.cpp
@@ -1309,6 +1309,9 @@ inline void QRingBuffer<T>::enqueue(const T &x)
 //============================================================================//
 //                               QTriangulator                                //
 //============================================================================//
+
+typedef QRBTree<int>::Node *QRBTreeIntNodePointer;
+
 template<typename T>
 class QTriangulator
 {
@@ -1775,7 +1778,7 @@ bool QTriangulator<T>::ComplexToSimple::edgeIsLeftOfEdge(int leftEdgeIndex, int
 }
 
 template <typename T>
-QRBTree<int>::Node *QTriangulator<T>::ComplexToSimple::searchEdgeLeftOf(int edgeIndex) const
+QRBTreeIntNodePointer QTriangulator<T>::ComplexToSimple::searchEdgeLeftOf(int edgeIndex) const
 {
     QRBTree<int>::Node *current = m_edgeList.root;
     QRBTree<int>::Node *result = 0;
@@ -1791,7 +1794,7 @@ QRBTree<int>::Node *QTriangulator<T>::ComplexToSimple::searchEdgeLeftOf(int edge
 }
 
 template <typename T>
-QRBTree<int>::Node *QTriangulator<T>::ComplexToSimple::searchEdgeLeftOf(int edgeIndex, QRBTree<int>::Node *after) const
+QRBTreeIntNodePointer QTriangulator<T>::ComplexToSimple::searchEdgeLeftOf(int edgeIndex, QRBTree<int>::Node *after) const
 {
     if (!m_edgeList.root)
         return after;
diff --git a/src/opengl/opengl.pro b/src/opengl/opengl.pro
index e7c1c44..ce1a5d2 100644
--- a/src/opengl/opengl.pro
+++ b/src/opengl/opengl.pro
@@ -157,10 +157,10 @@ embedded {
 }
 
 symbian {
-    DEFINES += QGL_USE_TEXTURE_POOL QGL_NO_PRESERVED_SWAP
+    DEFINES += QGL_NO_PRESERVED_SWAP
     SOURCES -= qpixmapdata_gl.cpp
     SOURCES += qgl_symbian.cpp \
-               qpixmapdata_poolgl.cpp \
+               qpixmapdata_symbiangl.cpp \
                qglpixelbuffer_egl.cpp \
                qgl_egl.cpp \
                qgltexturepool.cpp
diff --git a/src/opengl/qgl.cpp b/src/opengl/qgl.cpp
index 5f5864d..9520b2b 100644
--- a/src/opengl/qgl.cpp
+++ b/src/opengl/qgl.cpp
@@ -100,7 +100,8 @@
 #if defined(QT_OPENGL_ES) && !defined(QT_NO_EGL)
 #include <EGL/egl.h>
 #endif
-#ifdef QGL_USE_TEXTURE_POOL
+
+#ifdef Q_OS_SYMBIAN
 #include <private/qgltexturepool_p.h>
 #endif
 
@@ -2042,10 +2043,6 @@ struct DDSFormat {
     the pixmap/image that it stems from, e.g. installing destruction
     hooks in them.
 
-    \omitvalue TemporarilyCachedBindOption Used by paint engines on some
-    platforms to indicate that the pixmap or image texture is possibly
-    cached only temporarily and must be destroyed immediately after the use.
-
     \omitvalue InternalBindOption
 */
 
@@ -2550,7 +2547,8 @@ QGLTexture* QGLContextPrivate::bindTexture(const QImage &image, GLenum target, G
 #endif
 
     const QImage &constRef = img; // to avoid detach in bits()...
-#ifdef QGL_USE_TEXTURE_POOL
+#ifdef Q_OS_SYMBIAN
+    // On Symbian we always use texture pool to reserve the texture
     QGLTexturePool::instance()->createPermanentTexture(tx_id,
                                                         target,
                                                         0, internalFormat,
@@ -2562,6 +2560,7 @@ QGLTexture* QGLContextPrivate::bindTexture(const QImage &image, GLenum target, G
     glTexImage2D(target, 0, internalFormat, img.width(), img.height(), 0, externalFormat,
                  pixel_type, constRef.bits());
 #endif
+
 #if defined(QT_OPENGL_ES_2)
     if (genMipmap)
         glGenerateMipmap(target);
@@ -2585,6 +2584,13 @@ QGLTexture* QGLContextPrivate::bindTexture(const QImage &image, GLenum target, G
     QGLTexture *texture = new QGLTexture(q, tx_id, target, options);
     QGLTextureCache::instance()->insert(q, key, texture, cost);
 
+#ifdef Q_OS_SYMBIAN
+    // Store the key so that QGLTexturePool
+    // is able to release this texture when needed.
+    texture->boundKey = key;
+    // And append to LRU list
+    QGLTexturePool::instance()->useTexture(texture);
+#endif
     return texture;
 }
 
@@ -2665,6 +2671,20 @@ QGLTexture *QGLContextPrivate::bindTexture(const QPixmap &pixmap, GLenum target,
 #endif
 
     if (!texture) {
+#ifdef Q_OS_SYMBIAN
+        // On Symbian pixmaps are backed up by native CFbsBitmap
+        // which can be shared across processes. QVolatileImage wraps
+        // it and provides locking mechanism to pixel access.
+        QVolatileImage volatileImage = pd->toVolatileImage();
+        if (volatileImage.isNull()) { // TODO: raster graphics system don't provide volatile image (yet)
+            // NOTE! On Symbian raster graphics system QPixmap::toImage() makes deep copy
+            texture = bindTexture(pixmap.toImage(), target, format, key, options);
+        } else {
+            volatileImage.beginDataAccess();
+            texture = bindTexture(volatileImage.imageRef(), target, format, key, options);
+            volatileImage.endDataAccess(true);
+        }
+#else
         QImage image = pixmap.toImage();
         // If the system depth is 16 and the pixmap doesn't have an alpha channel
         // then we convert it to RGB16 in the hope that it gets uploaded as a 16
@@ -2672,6 +2692,7 @@ QGLTexture *QGLContextPrivate::bindTexture(const QPixmap &pixmap, GLenum target,
         if (pixmap.depth() == 16 && !image.hasAlphaChannel() )
             image = image.convertToFormat(QImage::Format_RGB16);
         texture = bindTexture(image, target, format, key, options);
+#endif
     }
     // NOTE: bindTexture(const QImage&, GLenum, GLint, const qint64, bool) should never return null
     Q_ASSERT(texture);
@@ -6063,4 +6084,26 @@ QSize QGLTexture::bindCompressedTexturePVR(const char *buf, int len)
 
 #undef ctx
 
+#ifdef Q_OS_SYMBIAN
+void QGLTexture::freeTexture()
+{
+    if (!id)
+        return;
+
+    if (inTexturePool)
+        QGLTexturePool::instance()->detachTexture(this);
+
+    if (boundPixmap)
+        boundPixmap->releaseNativeImageHandle();
+
+    if (options & QGLContext::MemoryManagedBindOption) {
+        Q_ASSERT(context);
+        context->d_ptr->texture_destroyer->emitFreeTexture(context, 0, id);
+    }
+
+    id = 0;
+    boundKey = 0;
+}
+#endif
+
 QT_END_NAMESPACE
diff --git a/src/opengl/qgl.h b/src/opengl/qgl.h
index 1f4eda3..3d31242 100644
--- a/src/opengl/qgl.h
+++ b/src/opengl/qgl.h
@@ -341,7 +341,6 @@ public:
 
         MemoryManagedBindOption                 = 0x0010, // internal flag
         CanFlipNativePixmapBindOption           = 0x0020, // internal flag
-        TemporarilyCachedBindOption             = 0x0040, // internal flag
 
         DefaultBindOption                       = LinearFilteringBindOption
                                                   | InvertedYBindOption
diff --git a/src/opengl/qgl_p.h b/src/opengl/qgl_p.h
index 4748521..de349a7 100644
--- a/src/opengl/qgl_p.h
+++ b/src/opengl/qgl_p.h
@@ -64,6 +64,12 @@
 #include "qcache.h"
 #include "qglpaintdevice_p.h"
 
+#ifdef Q_OS_SYMBIAN
+#include "qgltexturepool_p.h"
+
+class QGLPixmapData;
+#endif
+
 #ifndef QT_NO_EGL
 #include <QtGui/private/qegl_p.h>
 #endif
@@ -562,10 +568,21 @@ public:
           options(opt)
 #if defined(Q_WS_X11)
         , boundPixmap(0)
+#elif defined(Q_OS_SYMBIAN)
+        , boundPixmap(0)
+        , boundKey(0)
+        , nextLRU(0)
+        , prevLRU(0)
+        , inLRU(false)
+        , failedToAlloc(false)
+        , inTexturePool(false)
 #endif
     {}
 
     ~QGLTexture() {
+#ifdef Q_OS_SYMBIAN
+        freeTexture();
+#else
         if (options & QGLContext::MemoryManagedBindOption) {
             Q_ASSERT(context);
 #if !defined(Q_WS_X11)
@@ -573,7 +590,8 @@ public:
 #endif
             context->d_ptr->texture_destroyer->emitFreeTexture(context, boundPixmap, id);
         }
-     }
+#endif
+    }
 
     QGLContext *context;
     GLuint id;
@@ -593,6 +611,19 @@ public:
         (const char *buf, int len, const char *format = 0);
     QSize bindCompressedTextureDDS(const char *buf, int len);
     QSize bindCompressedTexturePVR(const char *buf, int len);
+
+#ifdef Q_OS_SYMBIAN
+    void freeTexture();
+
+    QGLPixmapData* boundPixmap;
+    qint64 boundKey;
+
+    QGLTexture *nextLRU;
+    QGLTexture *prevLRU;
+    mutable bool inLRU;
+    mutable bool failedToAlloc;
+    mutable bool inTexturePool;
+#endif
 };
 
 struct QGLTextureCacheKey {
diff --git a/src/opengl/qgltexturepool.cpp b/src/opengl/qgltexturepool.cpp
index d809328..9ad66f2 100644
--- a/src/opengl/qgltexturepool.cpp
+++ b/src/opengl/qgltexturepool.cpp
@@ -41,6 +41,7 @@
 
 #include "qgltexturepool_p.h"
 #include "qpixmapdata_gl_p.h"
+#include "qgl_p.h"
 
 QT_BEGIN_NAMESPACE
 
@@ -53,8 +54,8 @@ class QGLTexturePoolPrivate
 public:
     QGLTexturePoolPrivate() : lruFirst(0), lruLast(0) {}
 
-    QGLPixmapData *lruFirst;
-    QGLPixmapData *lruLast;
+    QGLTexture *lruFirst;
+    QGLTexture *lruLast;
 };
 
 QGLTexturePool::QGLTexturePool()
@@ -73,36 +74,36 @@ QGLTexturePool *QGLTexturePool::instance()
     return qt_gl_texture_pool;
 }
 
-GLuint QGLTexturePool::createTextureForPixmap(GLenum target,
+GLuint QGLTexturePool::createTexture(GLenum target,
                                             GLint level,
                                             GLint internalformat,
                                             GLsizei width,
                                             GLsizei height,
                                             GLenum format,
                                             GLenum type,
-                                            QGLPixmapData *data)
+                                            QGLTexture *texture)
 {
-    GLuint texture;
-    glGenTextures(1, &texture);
-    glBindTexture(target, texture);
+    GLuint tex;
+    glGenTextures(1, &tex);
+    glBindTexture(target, tex);
     do {
         glTexImage2D(target, level, internalformat, width, height, 0, format, type, 0);
         GLenum error = glGetError();
         if (error == GL_NO_ERROR) {
-            if (data)
-                moveToHeadOfLRU(data);
-            return texture;
+            if (texture)
+                moveToHeadOfLRU(texture);
+            return tex;
         } else if (error != GL_OUT_OF_MEMORY) {
             qWarning("QGLTexturePool: cannot create temporary texture because of invalid params");
             return 0;
         }
-    } while (reclaimSpace(internalformat, width, height, format, type, data));
-    qWarning("QGLTexturePool: cannot reclaim sufficient space for a %dx%d pixmap",
+    } while (reclaimSpace(internalformat, width, height, format, type, texture));
+    qWarning("QGLTexturePool: cannot reclaim sufficient space for a %dx%d texture",
              width, height);
     return 0;
 }
 
-bool QGLTexturePool::createPermanentTexture(GLuint texture,
+bool QGLTexturePool::createPermanentTexture(GLuint tex,
                                             GLenum target,
                                             GLint level,
                                             GLint internalformat,
@@ -112,7 +113,7 @@ bool QGLTexturePool::createPermanentTexture(GLuint texture,
                                             GLenum type,
                                             const GLvoid *data)
 {
-    glBindTexture(target, texture);
+    glBindTexture(target, tex);
     do {
         glTexImage2D(target, level, internalformat, width, height, 0, format, type, data);
 
@@ -124,32 +125,21 @@ bool QGLTexturePool::createPermanentTexture(GLuint texture,
             return false;
         }
     } while (reclaimSpace(internalformat, width, height, format, type, 0));
-    qWarning("QGLTexturePool: cannot reclaim sufficient space for a %dx%d pixmap",
+    qWarning("QGLTexturePool: cannot reclaim sufficient space for a %dx%d texture",
              width, height);
     return 0;
 }
 
-void QGLTexturePool::releaseTexture(QGLPixmapData *data, GLuint texture)
+void QGLTexturePool::useTexture(QGLTexture *texture)
 {
-    // Very simple strategy at the moment: just destroy the texture.
-    if (data)
-        removeFromLRU(data);
-
-    QGLWidget *shareWidget = qt_gl_share_widget();
-    if (shareWidget) {
-        QGLShareContextScope ctx(shareWidget->context());
-        glDeleteTextures(1, &texture);
-    }
-}
-
-void QGLTexturePool::useTexture(QGLPixmapData *data)
-{
-    moveToHeadOfLRU(data);
+    moveToHeadOfLRU(texture);
+    texture->inTexturePool = true;
 }
 
-void QGLTexturePool::detachTexture(QGLPixmapData *data)
+void QGLTexturePool::detachTexture(QGLTexture *texture)
 {
-    removeFromLRU(data);
+    removeFromLRU(texture);
+    texture->inTexturePool = false;
 }
 
 bool QGLTexturePool::reclaimSpace(GLint internalformat,
@@ -157,7 +147,7 @@ bool QGLTexturePool::reclaimSpace(GLint internalformat,
                                     GLsizei height,
                                     GLenum format,
                                     GLenum type,
-                                    QGLPixmapData *data)
+                                    QGLTexture *texture)
 {
     Q_UNUSED(internalformat);   // For future use in picking the best texture to eject.
     Q_UNUSED(width);
@@ -167,19 +157,22 @@ bool QGLTexturePool::reclaimSpace(GLint internalformat,
 
     bool succeeded = false;
     bool wasInLRU = false;
-    if (data) {
-        wasInLRU = data->inLRU;
-        moveToHeadOfLRU(data);
+    if (texture) {
+        wasInLRU = texture->inLRU;
+        moveToHeadOfLRU(texture);
     }
 
-    QGLPixmapData *lrudata = pixmapLRU();
-    if (lrudata && lrudata != data) {
-        lrudata->reclaimTexture();
+    QGLTexture *lrutexture = textureLRU();
+    if (lrutexture && lrutexture != texture) {
+        if (lrutexture->boundPixmap)
+            lrutexture->boundPixmap->reclaimTexture();
+        else
+            QGLTextureCache::instance()->remove(lrutexture->boundKey);
         succeeded = true;
     }
 
-    if (data && !wasInLRU)
-        removeFromLRU(data);
+    if (texture && !wasInLRU)
+        removeFromLRU(texture);
 
     return succeeded;
 }
@@ -187,55 +180,58 @@ bool QGLTexturePool::reclaimSpace(GLint internalformat,
 void QGLTexturePool::hibernate()
 {
     Q_D(QGLTexturePool);
-    QGLPixmapData *pd = d->lruLast;
-    while (pd) {
-        QGLPixmapData *prevLRU = pd->prevLRU;
-        pd->inTexturePool = false;
-        pd->inLRU = false;
-        pd->nextLRU = 0;
-        pd->prevLRU = 0;
-        pd->hibernate();
-        pd = prevLRU;
+    QGLTexture *texture = d->lruLast;
+    while (texture) {
+        QGLTexture *prevLRU = texture->prevLRU;
+        texture->inTexturePool = false;
+        texture->inLRU = false;
+        texture->nextLRU = 0;
+        texture->prevLRU = 0;
+        if (texture->boundPixmap)
+            texture->boundPixmap->hibernate();
+        else
+            QGLTextureCache::instance()->remove(texture->boundKey);
+        texture = prevLRU;
     }
     d->lruFirst = 0;
     d->lruLast = 0;
 }
 
-void QGLTexturePool::moveToHeadOfLRU(QGLPixmapData *data)
+void QGLTexturePool::moveToHeadOfLRU(QGLTexture *texture)
 {
     Q_D(QGLTexturePool);
-    if (data->inLRU) {
-        if (!data->prevLRU)
+    if (texture->inLRU) {
+        if (!texture->prevLRU)
             return;     // Already at the head of the list.
-        removeFromLRU(data);
+        removeFromLRU(texture);
     }
-    data->inLRU = true;
-    data->nextLRU = d->lruFirst;
-    data->prevLRU = 0;
+    texture->inLRU = true;
+    texture->nextLRU = d->lruFirst;
+    texture->prevLRU = 0;
     if (d->lruFirst)
-        d->lruFirst->prevLRU = data;
+        d->lruFirst->prevLRU = texture;
     else
-        d->lruLast = data;
-    d->lruFirst = data;
+        d->lruLast = texture;
+    d->lruFirst = texture;
 }
 
-void QGLTexturePool::removeFromLRU(QGLPixmapData *data)
+void QGLTexturePool::removeFromLRU(QGLTexture *texture)
 {
     Q_D(QGLTexturePool);
-    if (!data->inLRU)
+    if (!texture->inLRU)
         return;
-    if (data->nextLRU)
-        data->nextLRU->prevLRU = data->prevLRU;
+    if (texture->nextLRU)
+        texture->nextLRU->prevLRU = texture->prevLRU;
     else
-        d->lruLast = data->prevLRU;
-    if (data->prevLRU)
-        data->prevLRU->nextLRU = data->nextLRU;
+        d->lruLast = texture->prevLRU;
+    if (texture->prevLRU)
+        texture->prevLRU->nextLRU = texture->nextLRU;
     else
-        d->lruFirst = data->nextLRU;
-    data->inLRU = false;
+        d->lruFirst = texture->nextLRU;
+    texture->inLRU = false;
 }
 
-QGLPixmapData *QGLTexturePool::pixmapLRU()
+QGLTexture *QGLTexturePool::textureLRU()
 {
     Q_D(QGLTexturePool);
     return d->lruLast;
diff --git a/src/opengl/qgltexturepool_p.h b/src/opengl/qgltexturepool_p.h
index 27b730c..07f9700 100644
--- a/src/opengl/qgltexturepool_p.h
+++ b/src/opengl/qgltexturepool_p.h
@@ -58,7 +58,7 @@
 
 QT_BEGIN_NAMESPACE
 
-class QGLPixmapData;
+class QGLTexture;
 class QGLTexturePoolPrivate;
 
 class QGLTexturePool
@@ -70,18 +70,18 @@ public:
     static QGLTexturePool *instance();
 
     // Create a new texture with the specified parameters and associate
-    // it with "data".  The QGLPixmapData will be notified when the
+    // it with "texture".  The QGLTexture will be notified when the
     // texture needs to be reclaimed by the pool.
     //
     // This function will call reclaimSpace() when texture creation fails.
-    GLuint createTextureForPixmap(GLenum target,
+    GLuint createTexture(GLenum target,
                                             GLint level,
                                             GLint internalformat,
                                             GLsizei width,
                                             GLsizei height,
                                             GLenum format,
                                             GLenum type,
-                                            QGLPixmapData *data);
+                                            QGLTexture *texture);
 
     // Create a permanent texture with the specified parameters.
     // If there is insufficient space for the texture,
@@ -100,40 +100,37 @@ public:
                                             GLenum type,
                                             const GLvoid *data);
 
-    // Release a texture that is no longer required.
-    void releaseTexture(QGLPixmapData *data, GLuint texture);
-
-    // Notify the pool that a QGLPixmapData object is using
+    // Notify the pool that a QGLTexture object is using
     // an texture again.  This allows the pool to move the texture
-    // within a least-recently-used list of QGLPixmapData objects.
-    void useTexture(QGLPixmapData *data);
+    // within a least-recently-used list of QGLTexture objects.
+    void useTexture(QGLTexture *texture);
 
     // Notify the pool that the texture associated with a
-    // QGLPixmapData is being detached from the pool.  The caller
+    // QGLTexture is being detached from the pool.  The caller
     // will become responsible for calling glDeleteTextures().
-    void detachTexture(QGLPixmapData *data);
+    void detachTexture(QGLTexture *texture);
 
     // Reclaim space for an image allocation with the specified parameters.
     // Returns true if space was reclaimed, or false if there is no
-    // further space that can be reclaimed.  The "data" parameter
-    // indicates the pixmap that is trying to obtain space which should
+    // further space that can be reclaimed.  The "texture" parameter
+    // indicates the texture that is trying to obtain space which should
     // not itself be reclaimed.
     bool reclaimSpace(GLint internalformat,
                                 GLsizei width,
                                 GLsizei height,
                                 GLenum format,
                                 GLenum type,
-                                QGLPixmapData *data);
+                                QGLTexture *data);
 
-    // Hibernate the image pool because the context is about to be
+    // Hibernate the texture pool because the context is about to be
     // destroyed.  All textures left in the pool should be released.
     void hibernate();
 
 protected:
-    // Helper functions for managing the LRU list of QGLPixmapData objects.
-    void moveToHeadOfLRU(QGLPixmapData *data);
-    void removeFromLRU(QGLPixmapData *data);
-    QGLPixmapData *pixmapLRU();
+    // Helper functions for managing the LRU list of QGLTexture objects.
+    void moveToHeadOfLRU(QGLTexture *texture);
+    void removeFromLRU(QGLTexture *texture);
+    QGLTexture *textureLRU();
 
 private:
     QScopedPointer<QGLTexturePoolPrivate> d_ptr;
diff --git a/src/opengl/qgraphicssystem_gl.cpp b/src/opengl/qgraphicssystem_gl.cpp
index 8530b52..265bf22 100644
--- a/src/opengl/qgraphicssystem_gl.cpp
+++ b/src/opengl/qgraphicssystem_gl.cpp
@@ -55,9 +55,6 @@
 
 #if defined(Q_OS_SYMBIAN)
 #include <QtGui/private/qapplication_p.h>
-#endif
-
-#ifdef QGL_USE_TEXTURE_POOL
 #include "private/qgltexturepool_p.h"
 #endif
 
diff --git a/src/opengl/qpixmapdata_gl_p.h b/src/opengl/qpixmapdata_gl_p.h
index 909f264..bf1a303 100644
--- a/src/opengl/qpixmapdata_gl_p.h
+++ b/src/opengl/qpixmapdata_gl_p.h
@@ -70,12 +70,6 @@ class QGLFramebufferObject;
 class QGLFramebufferObjectFormat;
 class QGLPixmapData;
 
-#ifdef QGL_USE_TEXTURE_POOL
-void qt_gl_register_pixmap(QGLPixmapData *pd);
-void qt_gl_unregister_pixmap(QGLPixmapData *pd);
-void qt_gl_hibernate_pixmaps();
-#endif
-
 #ifdef Q_OS_SYMBIAN
 class QNativeImageHandleProvider;
 #endif
@@ -143,7 +137,7 @@ public:
     GLuint bind(bool copyBack = true) const;
     QGLTexture *texture() const;
 
-#ifdef QGL_USE_TEXTURE_POOL
+#ifdef Q_OS_SYMBIAN
     void destroyTexture();
     // Detach this image from the image pool.
     void detachTextureFromPool();
@@ -158,9 +152,8 @@ public:
     // texture objects to reuse storage.
     void reclaimTexture();
     void forceToImage();
-#endif
 
-#ifdef Q_OS_SYMBIAN
+    QVolatileImage toVolatileImage() const { return m_source; }
     QImage::Format idealFormat(QImage &image, Qt::ImageConversionFlags flags);
     void* toNativeType(NativeType type);
     void fromNativeType(void* pixmap, NativeType type);
@@ -218,23 +211,6 @@ private:
 
     mutable QGLPixmapGLPaintDevice m_glDevice;
 
-#ifdef QGL_USE_TEXTURE_POOL
-    QGLPixmapData *nextLRU;
-    QGLPixmapData *prevLRU;
-    mutable bool inLRU;
-    mutable bool failedToAlloc;
-    mutable bool inTexturePool;
-
-    QGLPixmapData *next;
-    QGLPixmapData *prev;
-
-    friend class QGLTexturePool;
-
-    friend void qt_gl_register_pixmap(QGLPixmapData *pd);
-    friend void qt_gl_unregister_pixmap(QGLPixmapData *pd);
-    friend void qt_gl_hibernate_pixmaps();
-#endif
-
     friend class QGLPixmapGLPaintDevice;
     friend class QMeeGoPixmapData;
     friend class QMeeGoLivePixmapData;
diff --git a/src/opengl/qpixmapdata_poolgl.cpp b/src/opengl/qpixmapdata_symbiangl.cpp
index 5dd7b09..ab8a9e8 100644
--- a/src/opengl/qpixmapdata_poolgl.cpp
+++ b/src/opengl/qpixmapdata_symbiangl.cpp
@@ -248,43 +248,14 @@ QGLPixmapData::QGLPixmapData(PixelType type)
     , m_dirty(false)
     , m_hasFillColor(false)
     , m_hasAlpha(false)
-    , inLRU(false)
-    , failedToAlloc(false)
-    , inTexturePool(false)
 {
     setSerialNumber(++qt_gl_pixmap_serial);
     m_glDevice.setPixmapData(this);
-
-    qt_gl_register_pixmap(this);
 }
 
 QGLPixmapData::~QGLPixmapData()
 {
     delete m_engine;
-
-    destroyTexture();
-    qt_gl_unregister_pixmap(this);
-}
-
-void QGLPixmapData::destroyTexture()
-{
-    if (inTexturePool) {
-        QGLTexturePool *pool = QGLTexturePool::instance();
-        if (m_texture.id)
-            pool->releaseTexture(this, m_texture.id);
-    } else {
-        if (m_texture.id) {
-            QGLWidget *shareWidget = qt_gl_share_widget();
-            if (shareWidget) {
-                QGLShareContextScope ctx(shareWidget->context());
-                glDeleteTextures(1, &m_texture.id);
-            }
-        }
-    }
-    m_texture.id = 0;
-    inTexturePool = false;
-
-    releaseNativeImageHandle();
 }
 
 QPixmapData *QGLPixmapData::createCompatiblePixmapData() const
@@ -299,11 +270,13 @@ bool QGLPixmapData::isValid() const
 
 bool QGLPixmapData::isValidContext(const QGLContext *ctx) const
 {
-    if (ctx == m_ctx)
-        return true;
-
-    const QGLContext *share_ctx = qt_gl_share_widget()->context();
-    return ctx == share_ctx || QGLContext::areSharing(ctx, share_ctx);
+    // On Symbian, we usually want to treat QGLPixmapData as
+    // raster pixmap data because that's well known and tested
+    // execution path which is used on other platforms as well.
+    // That's why if source pixels are valid we return false
+    // to simulate raster pixmaps. Only QPixmaps created from
+    // SgImage will enable usage of QGLPixmapData.
+    return false;
 }
 
 void QGLPixmapData::resize(int width, int height)
@@ -354,27 +327,25 @@ void QGLPixmapData::ensureCreated() const
     if (!m_source.isNull() && m_source.format() == QImage::Format_RGB16)
         type = GL_UNSIGNED_SHORT_5_6_5;
 
-    m_texture.options &= ~QGLContext::MemoryManagedBindOption;
-
     if (!m_texture.id) {
-        m_texture.id = QGLTexturePool::instance()->createTextureForPixmap(
+        m_texture.id = QGLTexturePool::instance()->createTexture(
                                                                 target,
                                                                 0, internal_format,
                                                                 w, h,
                                                                 external_format,
                                                                 type,
-                                                                const_cast<QGLPixmapData*>(this));
+                                                                &m_texture);
         if (!m_texture.id) {
-            failedToAlloc = true;
+            m_texture.failedToAlloc = true;
             return;
         }
         glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
         glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
 
-        inTexturePool = true;
-    } else if (inTexturePool) {
+        m_texture.inTexturePool = true;
+    } else if (m_texture.inTexturePool) {
         glBindTexture(target, m_texture.id);
-        QGLTexturePool::instance()->useTexture(const_cast<QGLPixmapData*>(this));
+        QGLTexturePool::instance()->useTexture(&m_texture);
     }
 
     if (!m_source.isNull() && m_texture.id) {
@@ -754,15 +725,8 @@ void QGLPixmapData::copyBackFromRenderFbo(bool keepCurrentFboBound) const
 
 bool QGLPixmapData::useFramebufferObjects() const
 {
-#ifdef Q_OS_SYMBIAN
-    // We don't want to use FBOs on Symbian
+    // We don't use FBOs on Symbian for now
     return false;
-#else
-    return QGLFramebufferObject::hasOpenGLFramebufferObjects()
-           && QGLFramebufferObject::hasOpenGLFramebufferBlit()
-           && qt_gl_preferGL2Engine()
-           && (w * h > 32*32); // avoid overhead of FBOs for small pixmaps
-#endif
 }
 
 QPaintEngine* QGLPixmapData::paintEngine() const
@@ -846,39 +810,8 @@ QGLTexture* QGLPixmapData::texture() const
     return &m_texture;
 }
 
-void QGLPixmapData::detachTextureFromPool()
-{
-    if (inTexturePool) {
-        QGLTexturePool::instance()->detachTexture(this);
-        inTexturePool = false;
-    }
-}
-
-void QGLPixmapData::hibernate()
-{
-    // If the image was imported (e.g, from an SgImage under Symbian), then
-    // skip the hibernation, there is no sense in copying it back to main
-    // memory because the data is most likely shared between several processes.
-    bool skipHibernate = (m_texture.id && m_source.isNull());
-#if defined(Q_OS_SYMBIAN)
-    // However we have to proceed normally if the image was retrieved via
-    // a handle provider.
-    skipHibernate &= !nativeImageHandleProvider;
-#endif
-    if (skipHibernate)
-        return;
-
-    forceToImage();
-    destroyTexture();
-}
-
-void QGLPixmapData::reclaimTexture()
-{
-    if (!inTexturePool)
-        return;
-    forceToImage();
-    destroyTexture();
-}
+Q_GUI_EXPORT int qt_defaultDpiX();
+Q_GUI_EXPORT int qt_defaultDpiY();
 
 int QGLPixmapData::metric(QPaintDevice::PaintDeviceMetric metric) const
 {
@@ -926,6 +859,31 @@ void QGLPixmapData::forceToImage()
     m_dirty = true;
 }
 
+void QGLPixmapData::destroyTexture()
+{
+    // Destroy SgImage texture
+}
+
+void QGLPixmapData::detachTextureFromPool()
+{
+    QGLTexturePool::instance()->detachTexture(&m_texture);
+}
+
+void QGLPixmapData::hibernate()
+{
+    destroyTexture();
+}
+
+void QGLPixmapData::reclaimTexture()
+{
+    if (!m_texture.inTexturePool)
+        return;
+
+    forceToImage();
+
+    destroyTexture();
+}
+
 QGLPaintDevice *QGLPixmapData::glDevice() const
 {
     return &m_glDevice;
diff --git a/src/opengl/qwindowsurface_gl.cpp b/src/opengl/qwindowsurface_gl.cpp
index ff55142..9ad7f6a 100644
--- a/src/opengl/qwindowsurface_gl.cpp
+++ b/src/opengl/qwindowsurface_gl.cpp
@@ -184,7 +184,7 @@ QGLGraphicsSystem::QGLGraphicsSystem(bool useX11GL)
 class QGLGlobalShareWidget
 {
 public:
-    QGLGlobalShareWidget() : firstPixmap(0), widgetRefCount(0), widget(0), initializing(false) {
+    QGLGlobalShareWidget() : refCount(0), widget(0), initializing(false) {
         created = true;
     }
 
@@ -227,8 +227,7 @@ public:
     static bool cleanedUp;
     static bool created;
 
-    QGLPixmapData *firstPixmap;
-    int widgetRefCount;
+    int refCount;
 
 private:
     QGLWidget *widget;
@@ -271,43 +270,6 @@ const QGLContext *qt_gl_share_context()
     return 0;
 }
 
-#ifdef QGL_USE_TEXTURE_POOL
-void qt_gl_register_pixmap(QGLPixmapData *pd)
-{
-    QGLGlobalShareWidget *shared = _qt_gl_share_widget();
-    pd->next = shared->firstPixmap;
-    pd->prev = 0;
-    if (shared->firstPixmap)
-        shared->firstPixmap->prev = pd;
-    shared->firstPixmap = pd;
-}
-
-void qt_gl_unregister_pixmap(QGLPixmapData *pd)
-{
-    if (pd->next)
-        pd->next->prev = pd->prev;
-    if (pd->prev) {
-        pd->prev->next = pd->next;
-    } else {
-        QGLGlobalShareWidget *shared = _qt_gl_share_widget();
-        if (shared)
-           shared->firstPixmap = pd->next;
-    }
-}
-
-void qt_gl_hibernate_pixmaps()
-{
-    QGLGlobalShareWidget *shared = _qt_gl_share_widget();
-
-    // Scan all QGLPixmapData objects in the system and hibernate them.
-    QGLPixmapData *pd = shared->firstPixmap;
-    while (pd != 0) {
-        pd->hibernate();
-        pd = pd->next;
-    }
-}
-#endif
-
 struct QGLWindowSurfacePrivate
 {
     QGLFramebufferObject *fbo;
@@ -407,18 +369,10 @@ QGLWindowSurface::~QGLWindowSurface()
     if (QGLGlobalShareWidget::cleanedUp)
         return;
 
-    --(_qt_gl_share_widget()->widgetRefCount);
-
-#ifdef QGL_USE_TEXTURE_POOL
-    if (_qt_gl_share_widget()->widgetRefCount <= 0) {
-        // All of the widget window surfaces have been destroyed
-        // but we still have GL pixmaps active.  Ask them to hibernate
-        // to free up GPU resources until a widget is shown again.
-        // This may eventually cause the EGLContext to be destroyed
-        // because nothing in the system needs a context, which will
-        // free up even more GPU resources.
-        qt_gl_hibernate_pixmaps();
+    --(_qt_gl_share_widget()->refCount);
 
+#ifdef Q_OS_SYMBIAN
+    if (_qt_gl_share_widget()->refCount <= 0) {
         // Destroy the context if necessary.
         if (!qt_gl_share_widget()->context()->isSharing())
             qt_destroy_gl_share_widget();
@@ -474,7 +428,7 @@ void QGLWindowSurface::hijackWindow(QWidget *widget)
     ctx->create(qt_gl_share_context());
 
     if (widget != qt_gl_share_widget())
-        ++(_qt_gl_share_widget()->widgetRefCount);
+        ++(_qt_gl_share_widget()->refCount);
 
 #ifndef QT_NO_EGL
     static bool checkedForNOKSwapRegion = false;
@@ -508,6 +462,7 @@ void QGLWindowSurface::hijackWindow(QWidget *widget)
 
     voidPtrPtr = &widgetPrivate->extraData()->glContext;
     d_ptr->contexts << ctxPtrPtr;
+
 #ifndef Q_OS_SYMBIAN
     qDebug() << "hijackWindow() context created for" << widget << d_ptr->contexts.size();
 #endif
@@ -902,7 +857,7 @@ void QGLWindowSurface::updateGeometry() {
 #ifdef Q_OS_SYMBIAN // Symbian needs to recreate the context when native window size changes
         if (d_ptr->size != geometry().size()) {
             if (window() != qt_gl_share_widget())
-                --(_qt_gl_share_widget()->widgetRefCount);
+                --(_qt_gl_share_widget()->refCount);
 
             delete wd->extraData()->glContext;
             wd->extraData()->glContext = 0;
diff --git a/src/openvg/qpixmapdata_vg_p.h b/src/openvg/qpixmapdata_vg_p.h
index 901bad9..18846f3 100644
--- a/src/openvg/qpixmapdata_vg_p.h
+++ b/src/openvg/qpixmapdata_vg_p.h
@@ -138,6 +138,7 @@ public:
     QSize size() const { return QSize(w, h); }
 
 #if defined(Q_OS_SYMBIAN)
+    QVolatileImage toVolatileImage() const { return source; }
     void* toNativeType(NativeType type);
     void fromNativeType(void* pixmap, NativeType type);
     bool initFromNativeImageHandle(void *handle, const QString &type);
diff --git a/src/qt3support/other/q3process_unix.cpp b/src/qt3support/other/q3process_unix.cpp
index af024bc..426d10f 100644
--- a/src/qt3support/other/q3process_unix.cpp
+++ b/src/qt3support/other/q3process_unix.cpp
@@ -213,7 +213,7 @@ static void q3process_cleanup()
     Q3ProcessPrivate::procManager = 0;
 }
 
-#ifdef Q_OS_QNX6
+#ifdef Q_OS_QNX
 #define BAILOUT qt_safe_close(tmpSocket);qt_safe_close(socketFD[1]);return -1;
 int qnx6SocketPairReplacement (int socketFD[2]) {
     int tmpSocket;
@@ -270,7 +270,7 @@ Q3ProcessManager::Q3ProcessManager() : sn(0)
     // The SIGCHLD handler writes to a socket to tell the manager that
     // something happened. This is done to get the processing in sync with the
     // event reporting.
-#ifndef Q_OS_QNX6
+#ifndef Q_OS_QNX
     if ( ::socketpair( AF_UNIX, SOCK_STREAM, 0, sigchldFd ) ) {
 #else
     if ( qnx6SocketPairReplacement (sigchldFd) ) {
@@ -670,14 +670,14 @@ bool Q3Process::start( QStringList *env )
     int sStderr[2];
 
     // open sockets for piping
-#ifndef Q_OS_QNX6
+#ifndef Q_OS_QNX
     if ( (comms & Stdin) && ::socketpair( AF_UNIX, SOCK_STREAM, 0, sStdin ) == -1 ) {
 #else
     if ( (comms & Stdin) && qnx6SocketPairReplacement(sStdin) == -1 ) {
 #endif
 	return false;
     }
-#ifndef Q_OS_QNX6
+#ifndef Q_OS_QNX
     if ( (comms & Stderr) && ::socketpair( AF_UNIX, SOCK_STREAM, 0, sStderr ) == -1 ) {
 #else
     if ( (comms & Stderr) && qnx6SocketPairReplacement(sStderr) == -1 ) {
@@ -688,7 +688,7 @@ bool Q3Process::start( QStringList *env )
 	}
 	return false;
     }
-#ifndef Q_OS_QNX6
+#ifndef Q_OS_QNX
     if ( (comms & Stdout) && ::socketpair( AF_UNIX, SOCK_STREAM, 0, sStdout ) == -1 ) {
 #else
     if ( (comms & Stdout) && qnx6SocketPairReplacement(sStdout) == -1 ) {
@@ -782,11 +782,7 @@ bool Q3Process::start( QStringList *env )
 	    ::fcntl( fd[1], F_SETFD, FD_CLOEXEC ); // close on exec shows success
 
 	if ( env == 0 ) { // inherit environment and start process
-#ifndef Q_OS_QNX4
 	    ::execvp( arglist[0], (char*const*)arglist ); // ### cast not nice
-#else
-	    ::execvp( arglist[0], (char const*const*)arglist ); // ### cast not nice
-#endif
 	} else { // start process with environment settins as specified in env
 	    // construct the environment for exec
 	    int numEntries = env->count();
@@ -843,11 +839,7 @@ bool Q3Process::start( QStringList *env )
 		    }
 		}
 	    }
-#ifndef Q_OS_QNX4
 	    ::execve( arglist[0], (char*const*)arglist, (char*const*)envlist ); // ### casts not nice
-#else
-	    ::execve( arglist[0], (char const*const*)arglist,(char const*const*)envlist ); // ### casts not nice
-#endif
 	}
 	if ( fd[1] ) {
 	    char buf = 0;
diff --git a/tests/auto/qdatetime/qdatetime.pro b/tests/auto/qdatetime/qdatetime.pro
index a3f3091..72ca333 100644
--- a/tests/auto/qdatetime/qdatetime.pro
+++ b/tests/auto/qdatetime/qdatetime.pro
@@ -10,4 +10,3 @@ win32-msvc|win32-msvc9x {
     QMAKE_CXXFLAGS_RELEASE -= -O1
 }
 CONFIG += parallel_test
-HEADERS = tst_qdatetime.loc
diff --git a/tests/auto/qgraphicslayout/tst_qgraphicslayout.cpp b/tests/auto/qgraphicslayout/tst_qgraphicslayout.cpp
index d5d56fc..cd91008 100644
--- a/tests/auto/qgraphicslayout/tst_qgraphicslayout.cpp
+++ b/tests/auto/qgraphicslayout/tst_qgraphicslayout.cpp
@@ -63,6 +63,14 @@ private slots:
     void automaticReparenting();
     void verifyActivate();
     void invalidate();
+    void moveAndResize_data();
+    void moveAndResize();
+    void moveAndResizeWidgetInWidget_data();
+    void moveAndResizeWidgetInWidget();
+    void changingMinimumSize_data();
+    void changingMinimumSize();
+    void invalidateAndMove_data();
+    void invalidateAndMove();
     void constructors();
     void alternativeLayoutItems();
     void ownership();
@@ -443,7 +451,7 @@ void tst_QGraphicsLayout::invalidate()
         QCoreApplication::sendPostedEvents();
         QCOMPARE(a->eventCount(QEvent::LayoutRequest), 1);
         QCOMPARE(b->eventCount(QEvent::LayoutRequest), 0);
-        QCOMPARE(c->eventCount(QEvent::LayoutRequest), 1);
+        QCOMPARE(c->eventCount(QEvent::GraphicsSceneResize), 1);
         QCOMPARE(d->eventCount(QEvent::LayoutRequest), 0);
 
         QCOMPARE(a->functionCount[SetGeometry], 1);
@@ -479,30 +487,18 @@ void tst_QGraphicsLayout::invalidate()
 
         QCOMPARE(c->eventCount(QEvent::LayoutRequest), 0);
         QCoreApplication::sendPostedEvents();
-        QCOMPARE(a->eventCount(QEvent::LayoutRequest), 1);
+        QCOMPARE(a->eventCount(QEvent::GraphicsSceneResize), 1);
         QCOMPARE(b->eventCount(QEvent::LayoutRequest), 0);
-        QCOMPARE(c->eventCount(QEvent::LayoutRequest), 1);
+        QCOMPARE(c->eventCount(QEvent::GraphicsSceneResize), 1);
         QCOMPARE(d->eventCount(QEvent::LayoutRequest), 0);
 
         QCOMPARE(a->functionCount[SetGeometry], 1);
 
-        /* well, ideally one call to setGeometry(), but it will currently
-         * get two calls to setGeometry():
-         *   1. The first LayoutRequest will call activate() - that will call
-         *      setGeometry() on the layout. This geometry will be based on
-         *      the widget geometry which is not correct at this moment.
-         *      (it is still 150 wide)
-         *   2. Next, we check if the widget is top level, and then we call
-         *      parentWidget->resize(parentWidget->size());
-         *      This will be adjusted to be minimum 200 pixels wide.
-         *      The new size will then be propagated down to the layout
-         *
-         */
-        QCOMPARE(alay->functionCount[SetGeometry], 2);
-
-        QCOMPARE(b->functionCount[SetGeometry], 2);
-        QCOMPARE(c->functionCount[SetGeometry], 2);
-        QCOMPARE(d->functionCount[SetGeometry], 2);
+        QCOMPARE(alay->functionCount[SetGeometry], 1);
+
+        QCOMPARE(b->functionCount[SetGeometry], 1);
+        QCOMPARE(c->functionCount[SetGeometry], 1);
+        QCOMPARE(d->functionCount[SetGeometry], 1);
         // f actually got wider, need to rearrange its siblings
         QCOMPARE(blay->functionCount[SetGeometry], 1);
         QCOMPARE(clay->functionCount[SetGeometry], 1);
@@ -555,7 +551,236 @@ void tst_QGraphicsLayout::invalidate()
 
     QGraphicsLayout::setInstantInvalidatePropagation(false);
 }
+void tst_QGraphicsLayout::changingMinimumSize_data()
+{
+    QTest::addColumn<bool>("instantInvalidatePropagation");
+    QTest::newRow("Without instantInvalidatePropagation") << false;
+    QTest::newRow("With instantInvalidatePropagation") << true;
+}
+void tst_QGraphicsLayout::changingMinimumSize()
+{
+    QFETCH(bool, instantInvalidatePropagation);
+    QGraphicsLayout::setInstantInvalidatePropagation(instantInvalidatePropagation);
+    QGraphicsWidget *widget = new QGraphicsWidget;
+    qApp->processEvents();
+    widget->setMinimumSize(300,300);
+    qApp->processEvents();
+    QCOMPARE(widget->size(), QSizeF(300,300));
+    QGraphicsLayout::setInstantInvalidatePropagation(false);
+}
+
+struct WidgetToTestResizeEvents : public QGraphicsWidget
+{
+    virtual void resizeEvent ( QGraphicsSceneResizeEvent * event )
+    {
+        QGraphicsWidget::resizeEvent(event);
+        resizeEventCalled = true;
+    }
+
+    bool resizeEventCalled;
+};
+
+void tst_QGraphicsLayout::moveAndResizeWidgetInWidget_data()
+{
+    QTest::addColumn<bool>("instantInvalidatePropagation");
+
+    QTest::newRow("Without instantInvalidatePropagation") << false;
+    QTest::newRow("With instantInvalidatePropagation") << true;
+}
+void tst_QGraphicsLayout::moveAndResizeWidgetInWidget()
+{
+    QFETCH(bool, instantInvalidatePropagation);
 
+    QGraphicsLayout::setInstantInvalidatePropagation(instantInvalidatePropagation);
+    QGraphicsScene scene;
+
+    QGraphicsWidget *widget = new QGraphicsWidget;
+    QGraphicsLinearLayout *layout = new QGraphicsLinearLayout(widget);
+    layout->setContentsMargins(0,0,0,0);
+    WidgetToTestResizeEvents *innerWidget = new WidgetToTestResizeEvents;
+    QGraphicsLinearLayout *innerLayout = new QGraphicsLinearLayout(innerWidget);
+    innerLayout->setContentsMargins(0,0,0,0);
+    QCOMPARE(widget->maximumSize(), QSizeF(QWIDGETSIZE_MAX, QWIDGETSIZE_MAX));
+    layout->addItem(innerWidget);
+    widget->setMinimumSize(1,1);
+    widget->setPreferredSize(1000,1000);
+    widget->setMaximumSize(2000,2000);
+    widget->resize(widget->preferredSize());
+    innerWidget->setMinimumSize(1,1);
+    qApp->processEvents();
+    innerWidget->resizeEventCalled = false;
+
+    QCOMPARE(widget->size(), QSizeF(1000, 1000));
+    QCOMPARE(layout->geometry().size(), QSizeF(1000, 1000));
+    QCOMPARE(innerWidget->size(), QSizeF(1000, 1000));
+
+    innerLayout->invalidate();
+    widget->setMaximumHeight(500);
+    widget->setX(1);
+    qApp->processEvents();
+    QCOMPARE(widget->size(), QSizeF(1000, 500));
+    QCOMPARE(innerWidget->size(), QSizeF(1000, 500));
+    QVERIFY(innerWidget->resizeEventCalled);
+}
+void tst_QGraphicsLayout::moveAndResize_data()
+{
+    QTest::addColumn<bool>("instantInvalidatePropagation");
+    QTest::addColumn<bool>("insideLayout");
+    QTest::addColumn<bool>("insideLayoutInLayout");
+    QTest::addColumn<bool>("insideWidget");
+    QTest::newRow("Without instantInvalidatePropagation") << false << false << false << false;
+    QTest::newRow("With instantInvalidatePropagation") << true << false << false << false;
+    QTest::newRow("Without instantInvalidatePropagation, inside widget with no layout") << false << false << false << true;
+    QTest::newRow("With instantInvalidatePropagation, inside widget with no layout") << true << false << false << true;
+    QTest::newRow("Without instantInvalidatePropagation, inside widget with layout") << false << true << false << true;
+    QTest::newRow("With instantInvalidatePropagation, inside widget with layout") << true << true << false << true;
+    QTest::newRow("Without instantInvalidatePropagation, inside widget with layout in layout") << false << true << true << true;
+    QTest::newRow("With instantInvalidatePropagation, inside widget with layout in layout") << true << true << true << true;
+
+}
+void tst_QGraphicsLayout::moveAndResize()
+{
+    QFETCH(bool, instantInvalidatePropagation);
+    QFETCH(bool, insideLayout);
+    QFETCH(bool, insideLayoutInLayout);
+    QFETCH(bool, insideWidget);
+    QGraphicsLayout::setInstantInvalidatePropagation(instantInvalidatePropagation);
+    QGraphicsScene scene;
+
+    WidgetToTestResizeEvents *widget = new WidgetToTestResizeEvents;
+
+    /* Setup its parent if we want them */
+    QGraphicsWidget *parent = NULL;
+    if (insideWidget)
+        parent = new QGraphicsWidget;
+    if (insideLayout) {
+        QGraphicsLinearLayout *layout = new QGraphicsLinearLayout(parent);
+        QGraphicsLinearLayout *innerLayout = NULL;
+        if (insideLayoutInLayout) {
+            innerLayout = new QGraphicsLinearLayout;
+            layout->addItem(innerLayout);
+            innerLayout->addItem(widget);
+        } else
+            layout->addItem(widget);
+    } else if (insideWidget) {
+        widget->setParentItem(parent);
+    }
+
+    new QGraphicsLinearLayout(widget);
+    widget->setGeometry(0,0,100,100);
+    qApp->processEvents();
+    widget->resizeEventCalled = false;
+
+    /* Force it grow by changing the minimum size */
+    widget->setMinimumSize(200,200);
+    qApp->processEvents();
+    qApp->processEvents();
+    qApp->processEvents();
+    QCOMPARE(widget->size(), QSizeF(200,200));
+    QVERIFY(widget->resizeEventCalled);
+    widget->resizeEventCalled = false;
+
+    /* Call setPos followed by a resize.  We should get a resize event */
+    widget->setPos(10,10);
+    widget->resize(300,300);
+    qApp->processEvents();
+    QVERIFY(widget->resizeEventCalled);
+    widget->resizeEventCalled = false;
+
+    /* Check that just calling setGeometry gives us a resize event */
+    widget->setGeometry(10,10, 400, 400);
+    qApp->processEvents();
+    QVERIFY(widget->resizeEventCalled);
+    widget->resizeEventCalled = false;
+
+    /* Now call setPos followed by increasing the size using setGeometry,*/
+    widget->setPos(30,30);
+    widget->setGeometry(10,10, 500, 500);
+    qApp->processEvents();
+    QVERIFY(widget->resizeEventCalled);
+    widget->resizeEventCalled = false;
+
+    /* Now call setPos followed by increasing the minimum size, to force it to grow */
+    widget->setMinimumSize(600,600);
+    widget->setPos(30,30);
+    qApp->processEvents();
+    QCOMPARE(widget->size(), QSizeF(600,600));
+    QVERIFY(widget->resizeEventCalled);
+    widget->resizeEventCalled = false;
+
+    QGraphicsLayout::setInstantInvalidatePropagation(false);
+}
+void tst_QGraphicsLayout::invalidateAndMove_data()
+{
+    QTest::addColumn<bool>("instantInvalidatePropagation");
+    QTest::newRow("Without instantInvalidatePropagation") << false;
+    QTest::newRow("With instantInvalidatePropagation") << true;
+
+}
+void tst_QGraphicsLayout::invalidateAndMove()
+{
+    // Check that if we set the position of an item and invalidate its layout at the same
+    // time, the widget keeps its correct size
+    QFETCH(bool, instantInvalidatePropagation);
+    QGraphicsLayout::setInstantInvalidatePropagation(instantInvalidatePropagation);
+    QGraphicsScene scene;
+
+    QGraphicsWidget *widget = new QGraphicsWidget;
+    new QGraphicsLinearLayout(widget);
+
+    widget->setMinimumSize(1,1);
+    widget->setPreferredSize(34,34);
+    widget->setMaximumSize(100,100);
+    widget->resize(widget->preferredSize());
+
+    scene.addItem(widget);
+
+    qApp->processEvents();
+
+    /* Invalidate and reactivate.  The size should not have changed */
+    widget->layout()->invalidate();
+    widget->layout()->activate();
+
+    QCOMPARE(widget->geometry().size(), widget->preferredSize());
+    QCOMPARE(widget->layout()->geometry().size(), widget->preferredSize());
+    qApp->processEvents();
+    QCOMPARE(widget->geometry().size(), widget->preferredSize());
+    QCOMPARE(widget->layout()->geometry().size(), widget->preferredSize());
+
+    widget->layout()->invalidate();
+    widget->setX(1);  //Change just the position using setX
+    QCOMPARE(widget->geometry().size(), widget->preferredSize());
+    QCOMPARE(widget->layout()->geometry().size(), widget->preferredSize());
+    qApp->processEvents();
+    QCOMPARE(widget->geometry().size(), widget->preferredSize());
+    QCOMPARE(widget->layout()->geometry().size(), widget->preferredSize());
+
+    widget->layout()->invalidate();
+    widget->setGeometry(1,1,34,34);  //Change just the position using setGeometry
+    QCOMPARE(widget->geometry().size(), widget->preferredSize());
+    QCOMPARE(widget->layout()->geometry().size(), widget->preferredSize());
+    qApp->processEvents();
+    QCOMPARE(widget->geometry().size(), widget->preferredSize());
+    QCOMPARE(widget->layout()->geometry().size(), widget->preferredSize());
+
+    widget->layout()->invalidate();
+    widget->setGeometry(1,1,60,60);  //Change just the size using setGeometry
+    QCOMPARE(widget->geometry().size(), QSizeF(60,60));
+    QCOMPARE(widget->layout()->geometry().size(), QSizeF(60,60));
+    qApp->processEvents();
+    QCOMPARE(widget->geometry().size(), QSizeF(60,60));
+    QCOMPARE(widget->layout()->geometry().size(), QSizeF(60,60));
+
+    widget->layout()->invalidate();
+    widget->setGeometry(0,0,34,34); //Change the size and position using setGeometry
+    QCOMPARE(widget->geometry().size(), widget->preferredSize());
+    QCOMPARE(widget->layout()->geometry().size(), widget->preferredSize());
+    qApp->processEvents();
+    QCOMPARE(widget->geometry().size(), widget->preferredSize());
+    QCOMPARE(widget->layout()->geometry().size(), widget->preferredSize());
+
+    QGraphicsLayout::setInstantInvalidatePropagation(false);
+}
 class Layout : public QGraphicsLayout
 {
 public:
diff --git a/tests/auto/qlocalsocket/tst_qlocalsocket.cpp b/tests/auto/qlocalsocket/tst_qlocalsocket.cpp
index 3dc5e73..feb2552 100644
--- a/tests/auto/qlocalsocket/tst_qlocalsocket.cpp
+++ b/tests/auto/qlocalsocket/tst_qlocalsocket.cpp
@@ -893,8 +893,8 @@ void tst_QLocalSocket::removeServer()
     QLocalServer server, server2;
     QVERIFY(QLocalServer::removeServer("cleanuptest"));
     QVERIFY(server.listen("cleanuptest"));
-#ifndef Q_OS_WIN
-    // on Windows, there can be several sockets listening on the same pipe
+#if !defined(Q_OS_WIN) && !defined(Q_OS_QNX)
+    // on Windows and QNX, there can be several sockets listening on the same pipe
     // on Unix, there can only be one socket instance
     QVERIFY(! server2.listen("cleanuptest"));
 #endif
diff --git a/tests/auto/qnetworkcookiejar/tst_qnetworkcookiejar.cpp b/tests/auto/qnetworkcookiejar/tst_qnetworkcookiejar.cpp
index 1b4256b..d1c376a 100644
--- a/tests/auto/qnetworkcookiejar/tst_qnetworkcookiejar.cpp
+++ b/tests/auto/qnetworkcookiejar/tst_qnetworkcookiejar.cpp
@@ -52,6 +52,7 @@ private slots:
     void getterSetter();
     void setCookiesFromUrl_data();
     void setCookiesFromUrl();
+    void setCookiesFromUrl_50CookiesLimitPerDomain();
     void cookiesForUrl_data();
     void cookiesForUrl();
     void effectiveTLDs_data();
@@ -251,6 +252,46 @@ void tst_QNetworkCookieJar::setCookiesFromUrl()
     QVERIFY2(result.isEmpty(), QTest::toString(result));
 }
 
+static bool findCookieName(const QList<QNetworkCookie> &cookieList, const QString &name)
+{
+    foreach(QNetworkCookie cookie, cookieList)
+        if (cookie.name() == name)
+            return true;
+    return false;
+}
+
+void tst_QNetworkCookieJar::setCookiesFromUrl_50CookiesLimitPerDomain()
+{
+    QNetworkCookie cookie;
+    cookie.setValue("value");
+    MyCookieJar jar;
+    QUrl url("http://a.b.c.com");
+
+    for (int i = 0; i < 20; ++i) {
+        // Add a list of 3 domain-matched cookies on each iteration for a total of 60 cookies.
+        QList<QNetworkCookie> cookieList;
+        cookie.setName(QString("CookieNo%1").arg(i*3+1).toAscii());
+        cookie.setDomain("a.b.c.com");
+        cookieList += cookie;
+        cookie.setName(QString("CookieNo%1").arg(i*3+2).toAscii());
+        cookie.setDomain(".b.c.com");
+        cookieList += cookie;
+        cookie.setName(QString("CookieNo%1").arg(i*3+3).toAscii());
+        cookie.setDomain(".c.com");
+        cookieList += cookie;
+        jar.setCookiesFromUrl(cookieList, url);
+
+        int expectedNumCookies = std::min((i+1)*3, 50);
+        QCOMPARE(jar.allCookies().size(), expectedNumCookies);
+    }
+
+    // Verify that the oldest cookies were the ones overwritten.
+    QVERIFY(!findCookieName(jar.allCookies(), "CookieNo1"));
+    QVERIFY(!findCookieName(jar.allCookies(), "CookieNo10"));
+    QVERIFY(findCookieName(jar.allCookies(), "CookieNo11"));
+    QVERIFY(findCookieName(jar.allCookies(), "CookieNo60"));
+}
+
 void tst_QNetworkCookieJar::cookiesForUrl_data()
 {
     QTest::addColumn<QList<QNetworkCookie> >("allCookies");
diff --git a/tests/auto/qpluginloader/tst_qpluginloader.cpp b/tests/auto/qpluginloader/tst_qpluginloader.cpp
index 76dbd48..d2d92a5 100644
--- a/tests/auto/qpluginloader/tst_qpluginloader.cpp
+++ b/tests/auto/qpluginloader/tst_qpluginloader.cpp
@@ -219,7 +219,7 @@ void tst_QPluginLoader::errorString()
     QVERIFY(loader.errorString() != unknown);
     }
 
-#if !defined Q_OS_WIN && !defined Q_OS_MAC && !defined Q_OS_HPUX && !defined Q_OS_SYMBIAN
+#if !defined Q_OS_WIN && !defined Q_OS_MAC && !defined Q_OS_HPUX && !defined Q_OS_SYMBIAN && !defined Q_OS_QNX
     {
     QPluginLoader loader( sys_qualifiedLibraryName("almostplugin"));     //a plugin with unresolved symbols
     loader.setLoadHints(QLibrary::ResolveAllSymbolsHint);
diff --git a/tests/auto/qwidget/tst_qwidget.cpp b/tests/auto/qwidget/tst_qwidget.cpp
index 5550fe8..86773ad 100644
--- a/tests/auto/qwidget/tst_qwidget.cpp
+++ b/tests/auto/qwidget/tst_qwidget.cpp
@@ -71,6 +71,7 @@
 #include <QtGui/qpaintengine.h>
 #include <private/qbackingstore_p.h>
 #include <qmenubar.h>
+#include <qtableview.h>
 
 #include <QtGui/QGraphicsView>
 #include <QtGui/QGraphicsProxyWidget>
@@ -406,6 +407,7 @@ private slots:
     void childAt();
 #ifdef Q_WS_MAC
     void childAt_unifiedToolBar();
+    void taskQTBUG_17333_ResizeInfiniteRecursion();
 #ifdef QT_MAC_USE_COCOA
     void taskQTBUG_11373();
 #endif // QT_MAC_USE_COCOA
@@ -10572,6 +10574,18 @@ void tst_QWidget::childAt_unifiedToolBar()
     QCOMPARE(mainWindow.childAt(labelTopLeft), static_cast<QWidget *>(label));
 }
 
+void tst_QWidget::taskQTBUG_17333_ResizeInfiniteRecursion()
+{
+    QTableView tb;
+    const char *s = "border: 1px solid;";
+    tb.setStyleSheet(s);
+    tb.show();
+
+    QTest::qWaitForWindowShown(&tb);
+    tb.setGeometry(QRect(100, 100, 0, 100));
+    // No crash, it works.
+}
+
 #ifdef QT_MAC_USE_COCOA
 void tst_QWidget::taskQTBUG_11373()
 {
diff --git a/tools/qmlplugindump/main.cpp b/tools/qmlplugindump/main.cpp
index f398358..403e3b6 100644
--- a/tools/qmlplugindump/main.cpp
+++ b/tools/qmlplugindump/main.cpp
@@ -66,6 +66,7 @@
 #endif
 
 QString pluginImportPath;
+bool verbose = false;
 
 void collectReachableMetaObjects(const QMetaObject *meta, QSet<const QMetaObject *> *metas)
 {
@@ -88,13 +89,15 @@ void collectReachableMetaObjects(QObject *object, QSet<const QMetaObject *> *met
         return;
 
     const QMetaObject *meta = object->metaObject();
-    qDebug() << "Processing object" << meta->className();
+    if (verbose)
+        qDebug() << "Processing object" << meta->className();
     collectReachableMetaObjects(meta, metas);
 
     for (int index = 0; index < meta->propertyCount(); ++index) {
         QMetaProperty prop = meta->property(index);
         if (QDeclarativeMetaType::isQObject(prop.userType())) {
-            qDebug() << "  Processing property" << prop.name();
+            if (verbose)
+                qDebug() << "  Processing property" << prop.name();
             currentProperty = QString("%1::%2").arg(meta->className(), prop.name());
 
             // if the property was not initialized during construction,
@@ -187,9 +190,15 @@ QSet<const QMetaObject *> collectReachableMetaObjects(const QString &importCode,
     foreach (const QDeclarativeType *ty, QDeclarativeMetaType::qmlTypes()) {
         if (ty->isExtendedType())
             continue;
+        if (!ty->isCreatable())
+            continue;
+        if (ty->typeName() == "QDeclarativeComponent")
+            continue;
 
         QByteArray tyName = ty->qmlTypeName();
         tyName = tyName.mid(tyName.lastIndexOf('/') + 1);
+        if (tyName.isEmpty())
+            continue;
 
         QByteArray code = importCode.toUtf8();
         code += tyName;
@@ -202,7 +211,7 @@ QSet<const QMetaObject *> collectReachableMetaObjects(const QString &importCode,
         if (object)
             collectReachableMetaObjects(object, &metas);
         else
-            qDebug() << "Could not create" << tyName << ":" << c.errorString();
+            qWarning() << "Could not create" << tyName << ":" << c.errorString();
     }
 
     return metas;
@@ -424,9 +433,9 @@ void sigSegvHandler(int) {
 void printUsage(const QString &appName)
 {
     qWarning() << qPrintable(QString(
-                                 "Usage: %1 [-notrelocatable] module.uri version [module/import/path]\n"
-                                 "       %1 -path path/to/qmldir/directory [version]\n"
-                                 "       %1 -builtins\n"
+                                 "Usage: %1 [-v] [-notrelocatable] module.uri version [module/import/path]\n"
+                                 "       %1 [-v] -path path/to/qmldir/directory [version]\n"
+                                 "       %1 [-v] -builtins\n"
                                  "Example: %1 Qt.labs.particles 4.7 /home/user/dev/qt-install/imports").arg(
                                  appName));
 }
@@ -436,13 +445,13 @@ int main(int argc, char *argv[])
 #ifdef Q_OS_UNIX
     // qmldump may crash, but we don't want any crash handlers to pop up
     // therefore we intercept the segfault and just exit() ourselves
-    struct sigaction action;
+    struct sigaction sigAction;
 
-    sigemptyset(&action.sa_mask);
-    action.sa_handler = &sigSegvHandler;
-    action.sa_flags   = 0;
+    sigemptyset(&sigAction.sa_mask);
+    sigAction.sa_handler = &sigSegvHandler;
+    sigAction.sa_flags   = 0;
 
-    sigaction(SIGSEGV, &action, 0);
+    sigaction(SIGSEGV, &sigAction, 0);
 #endif
 
 #ifdef QT_SIMULATOR
@@ -452,10 +461,7 @@ int main(int argc, char *argv[])
     QApplication app(argc, argv);
     const QStringList args = app.arguments();
     const QString appName = QFileInfo(app.applicationFilePath()).baseName();
-    if (!(args.size() >= 3
-          || (args.size() == 2
-              && (args.at(1) == QLatin1String("--builtins")
-                  || args.at(1) == QLatin1String("-builtins"))))) {
+    if (args.size() < 2) {
         printUsage(appName);
         return EXIT_INVALIDARGUMENTS;
     }
@@ -463,8 +469,9 @@ int main(int argc, char *argv[])
     QString pluginImportUri;
     QString pluginImportVersion;
     bool relocatable = true;
-    bool pathImport = false;
-    if (args.size() >= 3) {
+    enum Action { Uri, Path, Builtins };
+    Action action = Uri;
+    {
         QStringList positionalArgs;
         foreach (const QString &arg, args) {
             if (!arg.startsWith(QLatin1Char('-'))) {
@@ -477,14 +484,19 @@ int main(int argc, char *argv[])
                 relocatable = false;
             } else if (arg == QLatin1String("--path")
                        || arg == QLatin1String("-path")) {
-                pathImport = true;
+                action = Path;
+            } else if (arg == QLatin1String("--builtins")
+                       || arg == QLatin1String("-builtins")) {
+                action = Builtins;
+            } else if (arg == QLatin1String("-v")) {
+                verbose = true;
             } else {
                 qWarning() << "Invalid argument: " << arg;
                 return EXIT_INVALIDARGUMENTS;
             }
         }
 
-        if (!pathImport) {
+        if (action == Uri) {
             if (positionalArgs.size() != 3 && positionalArgs.size() != 4) {
                 qWarning() << "Incorrect number of positional arguments";
                 return EXIT_INVALIDARGUMENTS;
@@ -493,7 +505,7 @@ int main(int argc, char *argv[])
             pluginImportVersion = positionalArgs[2];
             if (positionalArgs.size() >= 4)
                 pluginImportPath = positionalArgs[3];
-        } else {
+        } else if (action == Path) {
             if (positionalArgs.size() != 2 && positionalArgs.size() != 3) {
                 qWarning() << "Incorrect number of positional arguments";
                 return EXIT_INVALIDARGUMENTS;
@@ -501,6 +513,11 @@ int main(int argc, char *argv[])
             pluginImportPath = QDir::fromNativeSeparators(positionalArgs[1]);
             if (positionalArgs.size() == 3)
                 pluginImportVersion = positionalArgs[2];
+        } else if (action == Builtins) {
+            if (positionalArgs.size() != 1) {
+                qWarning() << "Incorrect number of positional arguments";
+                return EXIT_INVALIDARGUMENTS;
+            }
         }
     }
 
@@ -516,11 +533,11 @@ int main(int argc, char *argv[])
     // this will hold the meta objects we want to dump information of
     QSet<const QMetaObject *> metas;
 
-    if (pluginImportUri.isEmpty() && !pathImport) {
+    if (action == Builtins) {
         metas = defaultReachable;
     } else {
         // find all QMetaObjects reachable when the specified module is imported
-        if (!pathImport) {
+        if (action != Path) {
             importCode += QString("import %0 %1\n").arg(pluginImportUri, pluginImportVersion).toAscii();
         } else {
             // pluginImportVersion can be empty
@@ -567,7 +584,7 @@ int main(int argc, char *argv[])
     QmlStreamWriter qml(&bytes);
 
     qml.writeStartDocument();
-    qml.writeLibraryImport(QLatin1String("QtQuick.tooling"), 1, 0);
+    qml.writeLibraryImport(QLatin1String("QtQuick.tooling"), 1, 1);
     qml.write("\n"
               "// This file describes the plugin-supplied types contained in the library.\n"
               "// It is used for QML tooling purposes only.\n"