Merge commit 'qt/master-stable'

Conflicts: configure.exe qmake/Makefile.unix qmake/generators/makefile.cpp src/corelib/global/qglobal.h src/corelib/kernel/kernel.pri src/corelib/kernel/qcoreevent.cpp src/corelib/kernel/qsharedmemory_unix.cpp src/gui/graphicsview/qgraphicsscene.cpp src/gui/kernel/qaction.cpp src/gui/kernel/qaction.h src/gui/kernel/qaction_p.h src/gui/kernel/qapplication.cpp src/gui/kernel/qapplication.h src/gui/kernel/qwidget.cpp src/gui/kernel/qwidget.h src/gui/kernel/qwidget_mac.mm src/gui/painting/qgraphicssystemfactory.cpp src/gui/styles/qwindowsstyle.cpp src/gui/text/qfontengine_qpf.cpp src/gui/widgets/qabstractscrollarea_p.h src/network/access/qnetworkaccessdebugpipebackend.cpp src/network/socket/qlocalsocket_unix.cpp src/network/socket/qnativesocketengine_p.h src/network/socket/qnativesocketengine_unix.cpp src/openvg/qpaintengine_vg.cpp tests/auto/q3sqlcursor/tst_q3sqlcursor.cpp tests/auto/qcssparser/qcssparser.pro tests/auto/qdir/tst_qdir.cpp tests/auto/qfile/tst_qfile.cpp tests/auto/qobject/tst_qobject.cpp tests/auto/qpathclipper/qpathclipper.pro tests/auto/qprocess/tst_qprocess.cpp tests/auto/qsettings/tst_qsettings.cpp tests/auto/qsharedpointer/qsharedpointer.pro tests/auto/qsqlquerymodel/qsqlquerymodel.pro tests/auto/qsqlrelationaltablemodel/qsqlrelationaltablemodel.pro tests/auto/qsqltablemodel/qsqltablemodel.pro tests/auto/qsqlthread/qsqlthread.pro tests/auto/qwidget/tst_qwidget.cpp
author: Jason Barron <jbarron@trolltech.com> 2009-07-24 09:45:33 (GMT)
committer: Jason Barron <jbarron@trolltech.com> 2009-07-27 13:04:30 (GMT)
commit: 3643028959f0b38350e57e60ba4000435b75e592 (patch)
tree: c129e4dee11487abd437ab8ebd993ba261e06fa6 /src/corelib
parent: cf66c667a97c0079141eb3f2d9e997b7378ae792 (diff)
parent: c36139c665e61866aff4bf8572890a735167a7d0 (diff)
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Qt-3643028959f0b38350e57e60ba4000435b75e592.tar.gz
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112 files changed, 3772 insertions, 2967 deletions
diff --git a/src/corelib/animation/qabstractanimation.cpp b/src/corelib/animation/qabstractanimation.cpp
index 3720984..ced86d2 100644
--- a/src/corelib/animation/qabstractanimation.cpp
+++ b/src/corelib/animation/qabstractanimation.cpp
@@ -254,8 +254,17 @@ void QAbstractAnimationPrivate::setState(QAbstractAnimation::State newState)
     int oldCurrentLoop = currentLoop;
     QAbstractAnimation::Direction oldDirection = direction;
 
-    state = newState;
+    // check if we should Rewind
+    if ((newState == QAbstractAnimation::Paused || newState == QAbstractAnimation::Running)
+        && oldState == QAbstractAnimation::Stopped) {
+            //here we reset the time if needed
+            //we don't call setCurrentTime because this might change the way the animation
+            //behaves: changing the state or changing the current value
+            totalCurrentTime = currentTime =(direction == QAbstractAnimation::Forward) ?
+                0 : (loopCount == -1 ? q->duration() : q->totalDuration());
+    }
 
+    state = newState;
     QPointer<QAbstractAnimation> guard(q);
 
     guard->updateState(oldState, newState);
@@ -268,36 +277,22 @@ void QAbstractAnimationPrivate::setState(QAbstractAnimation::State newState)
     if (guard)
         emit guard->stateChanged(oldState, newState);
 
-    // Enter running state.
     switch (state)
     {
     case QAbstractAnimation::Paused:
     case QAbstractAnimation::Running:
-        {
-            // Rewind
-            if (oldState == QAbstractAnimation::Stopped) {
-                if (guard) {
-                    if (direction == QAbstractAnimation::Forward)
-                        q->setCurrentTime(0);
-                    else
-                        q->setCurrentTime(loopCount == -1 ? q->duration() : q->totalDuration());
-                }
-
-                // Check if the setCurrentTime() function called stop().
-                // This can happen for a 0-duration animation
-                if (state == QAbstractAnimation::Stopped)
-                    return;
-            }
-
-            // Register timer if our parent is not running.
-            if (state == QAbstractAnimation::Running && guard) {
-                if (!group || group->state() == QAbstractAnimation::Stopped) {
-                    QUnifiedTimer::instance()->registerAnimation(q);
-                }
-            } else {
-                //new state is paused
-                QUnifiedTimer::instance()->unregisterAnimation(q);
+        //this ensures that the value is updated now that the animation is running
+        if(oldState == QAbstractAnimation::Stopped && guard)
+            guard->setCurrentTime(currentTime);
+
+        // Register timer if our parent is not running.
+        if (state == QAbstractAnimation::Running && guard) {
+            if (!group || group->state() == QAbstractAnimation::Stopped) {
+                QUnifiedTimer::instance()->registerAnimation(q);
             }
+        } else {
+            //new state is paused
+            QUnifiedTimer::instance()->unregisterAnimation(q);
         }
         break;
     case QAbstractAnimation::Stopped:
@@ -625,8 +620,8 @@ void QAbstractAnimation::start(DeletionPolicy policy)
     Q_D(QAbstractAnimation);
     if (d->state == Running)
         return;
-    d->setState(Running);
     d->deleteWhenStopped = policy;
+    d->setState(Running);
 }
 
 /*!
@@ -648,9 +643,8 @@ void QAbstractAnimation::stop()
 
 /*!
     Pauses the animation. When the animation is paused, state() returns Paused.
-    The currenttime will remain unchanged until resume() or start() is called.
-    If you want to continue from the current time, call resume().
-
+    The value of currentTime will remain unchanged until resume() or start() 
+    is called. If you want to continue from the current time, call resume().
 
     \sa start(), state(), resume()
  */
diff --git a/src/corelib/animation/qabstractanimation_p.h b/src/corelib/animation/qabstractanimation_p.h
index 00def55..0d8402e 100644
--- a/src/corelib/animation/qabstractanimation_p.h
+++ b/src/corelib/animation/qabstractanimation_p.h
@@ -58,6 +58,8 @@
 #include <QtCore/qtimer.h>
 #include <private/qobject_p.h>
 
+#ifndef QT_NO_ANIMATION
+
 QT_BEGIN_NAMESPACE
 
 class QAnimationGroup;
@@ -147,4 +149,7 @@ private:
 };
 
 QT_END_NAMESPACE
-#endif
+
+#endif //QT_NO_ANIMATION
+
+#endif //QABSTRACTANIMATION_P_H
diff --git a/src/corelib/animation/qanimationgroup_p.h b/src/corelib/animation/qanimationgroup_p.h
index 8e668f0..01252c5 100644
--- a/src/corelib/animation/qanimationgroup_p.h
+++ b/src/corelib/animation/qanimationgroup_p.h
@@ -59,6 +59,8 @@
 
 #include "private/qabstractanimation_p.h"
 
+#ifndef QT_NO_ANIMATION
+
 QT_BEGIN_NAMESPACE
 
 class QAnimationGroupPrivate : public QAbstractAnimationPrivate
@@ -76,4 +78,6 @@ public:
 
 QT_END_NAMESPACE
 
+#endif //QT_NO_ANIMATION
+
 #endif //QANIMATIONGROUP_P_H
diff --git a/src/corelib/animation/qparallelanimationgroup_p.h b/src/corelib/animation/qparallelanimationgroup_p.h
index 201eb16..949a9b2 100644
--- a/src/corelib/animation/qparallelanimationgroup_p.h
+++ b/src/corelib/animation/qparallelanimationgroup_p.h
@@ -57,6 +57,8 @@
 #include "private/qanimationgroup_p.h"
 #include <QtCore/QHash>
 
+#ifndef QT_NO_ANIMATION
+
 QT_BEGIN_NAMESPACE
 
 class QParallelAnimationGroupPrivate : public QAnimationGroupPrivate
@@ -82,4 +84,6 @@ public:
 
 QT_END_NAMESPACE
 
+#endif //QT_NO_ANIMATION
+
 #endif //QPARALLELANIMATIONGROUP_P_H
diff --git a/src/corelib/animation/qpropertyanimation.cpp b/src/corelib/animation/qpropertyanimation.cpp
index 7526a81..5f224aa 100644
--- a/src/corelib/animation/qpropertyanimation.cpp
+++ b/src/corelib/animation/qpropertyanimation.cpp
@@ -100,10 +100,6 @@
 
 QT_BEGIN_NAMESPACE
 
-typedef QPair<QObject *, QByteArray> QPropertyAnimationPair;
-typedef QHash<QPropertyAnimationPair, QPropertyAnimation*> QPropertyAnimationHash;
-Q_GLOBAL_STATIC(QPropertyAnimationHash, _q_runningAnimations)
-
 void QPropertyAnimationPrivate::updateMetaProperty()
 {
     if (!target || propertyName.isEmpty())
@@ -286,19 +282,21 @@ void QPropertyAnimation::updateState(QAbstractAnimation::State oldState,
 
     QPropertyAnimation *animToStop = 0;
     {
-        QPropertyAnimationHash * hash = _q_runningAnimations();
-        QMutexLocker locker(QMutexPool::globalInstanceGet(hash));
+        QMutexLocker locker(QMutexPool::globalInstanceGet(&staticMetaObject));
+        typedef QPair<QObject *, QByteArray> QPropertyAnimationPair;
+        typedef QHash<QPropertyAnimationPair, QPropertyAnimation*> QPropertyAnimationHash;
+        static QPropertyAnimationHash hash;
         QPropertyAnimationPair key(d->target, d->propertyName);
         if (newState == Running) {
             d->updateMetaProperty();
-            animToStop = hash->value(key, 0);
-            hash->insert(key, this);
+            animToStop = hash.value(key, 0);
+            hash.insert(key, this);
             // update the default start value
             if (oldState == Stopped) {
                 d->setDefaultStartValue(d->target->property(d->propertyName.constData()));
             }
-        } else if (hash->value(key) == this) {
-            hash->remove(key);
+        } else if (hash.value(key) == this) {
+            hash.remove(key);
         }
     }
 
diff --git a/src/corelib/animation/qpropertyanimation_p.h b/src/corelib/animation/qpropertyanimation_p.h
index 68b2519..a2ae5ec 100644
--- a/src/corelib/animation/qpropertyanimation_p.h
+++ b/src/corelib/animation/qpropertyanimation_p.h
@@ -58,6 +58,8 @@
 
 #include "private/qvariantanimation_p.h"
 
+#ifndef QT_NO_ANIMATION
+
 QT_BEGIN_NAMESPACE
 
 class QPropertyAnimationPrivate : public QVariantAnimationPrivate
@@ -86,4 +88,6 @@ public:
 
 QT_END_NAMESPACE
 
-#endif
+#endif //QT_NO_ANIMATION
+
+#endif //QPROPERTYANIMATION_P_H
diff --git a/src/corelib/animation/qsequentialanimationgroup.cpp b/src/corelib/animation/qsequentialanimationgroup.cpp
index 5932e7c..05dc307 100644
--- a/src/corelib/animation/qsequentialanimationgroup.cpp
+++ b/src/corelib/animation/qsequentialanimationgroup.cpp
@@ -269,8 +269,10 @@ QSequentialAnimationGroup::~QSequentialAnimationGroup()
 
 /*!
     Adds a pause of \a msecs to this animation group.
-    The pause is considered as a special type of animation, thus count() will be
+    The pause is considered as a special type of animation, thus 
+    \l{QAnimationGroup::animationCount()}{animationCount} will be 
     increased by one.
+
     \sa insertPauseAt(), QAnimationGroup::addAnimation()
 */
 QPauseAnimation *QSequentialAnimationGroup::addPause(int msecs)
diff --git a/src/corelib/animation/qsequentialanimationgroup_p.h b/src/corelib/animation/qsequentialanimationgroup_p.h
index 555b696..8db79a0 100644
--- a/src/corelib/animation/qsequentialanimationgroup_p.h
+++ b/src/corelib/animation/qsequentialanimationgroup_p.h
@@ -56,6 +56,7 @@
 #include "qsequentialanimationgroup.h"
 #include "private/qanimationgroup_p.h"
 
+#ifndef QT_NO_ANIMATION
 
 QT_BEGIN_NAMESPACE
 
@@ -108,4 +109,6 @@ public:
 
 QT_END_NAMESPACE
 
+#endif //QT_NO_ANIMATION
+
 #endif //QSEQUENTIALANIMATIONGROUP_P_H
diff --git a/src/corelib/animation/qvariantanimation.h b/src/corelib/animation/qvariantanimation.h
index b2d52d5..3e397ca 100644
--- a/src/corelib/animation/qvariantanimation.h
+++ b/src/corelib/animation/qvariantanimation.h
@@ -62,7 +62,7 @@ class Q_CORE_EXPORT QVariantAnimation : public QAbstractAnimation
     Q_OBJECT
     Q_PROPERTY(QVariant startValue READ startValue WRITE setStartValue)
     Q_PROPERTY(QVariant endValue READ endValue WRITE setEndValue)
-    Q_PROPERTY(QVariant currentValue READ currentValue NOTIFY currentValueChanged)
+    Q_PROPERTY(QVariant currentValue READ currentValue NOTIFY valueChanged)
     Q_PROPERTY(int duration READ duration WRITE setDuration)
     Q_PROPERTY(QEasingCurve easingCurve READ easingCurve WRITE setEasingCurve)
 
diff --git a/src/corelib/animation/qvariantanimation_p.h b/src/corelib/animation/qvariantanimation_p.h
index b848e12..69e23dc 100644
--- a/src/corelib/animation/qvariantanimation_p.h
+++ b/src/corelib/animation/qvariantanimation_p.h
@@ -60,6 +60,8 @@
 
 #include "private/qabstractanimation_p.h"
 
+#ifndef QT_NO_ANIMATION
+
 QT_BEGIN_NAMESPACE
 
 class QVariantAnimationPrivate : public QAbstractAnimationPrivate
@@ -120,4 +122,6 @@ template<typename T > inline QVariant _q_interpolateVariant(const T &from, const
 
 QT_END_NAMESPACE
 
+#endif //QT_NO_ANIMATION
+
 #endif //QANIMATION_P_H
diff --git a/src/corelib/arch/qatomic_powerpc.h b/src/corelib/arch/qatomic_powerpc.h
index ea3f458..c3b31f9 100644
--- a/src/corelib/arch/qatomic_powerpc.h
+++ b/src/corelib/arch/qatomic_powerpc.h
@@ -101,8 +101,6 @@ template <typename T>
 Q_INLINE_TEMPLATE bool QBasicAtomicPointer<T>::isFetchAndAddWaitFree()
 { return false; }
 
-QT_BEGIN_NAMESPACE
-
 #if defined(Q_CC_GNU)
 
 #if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 2) \
diff --git a/src/corelib/codecs/qiconvcodec.cpp b/src/corelib/codecs/qiconvcodec.cpp
index 1bf76ea..188ac8c 100644
--- a/src/corelib/codecs/qiconvcodec.cpp
+++ b/src/corelib/codecs/qiconvcodec.cpp
@@ -225,10 +225,11 @@ QString QIconvCodec::convertToUnicode(const char* chars, int len, ConverterState
     char *inBytes = const_cast<char *>(chars);
 #endif
 
+    QByteArray in;
     if (remainingCount) {
         // we have to prepend the remaining bytes from the previous conversion
         inBytesLeft += remainingCount;
-        QByteArray in(inBytesLeft, Qt::Uninitialized);
+        in.resize(inBytesLeft);
         inBytes = in.data();
 
         memcpy(in.data(), remainingBuffer, remainingCount);
@@ -362,9 +363,10 @@ QByteArray QIconvCodec::convertFromUnicode(const QChar *uc, int len, ConverterSt
     inBytes = const_cast<char *>(reinterpret_cast<const char *>(uc));
     inBytesLeft = len * sizeof(QChar);
 
+    QByteArray in;
     if (convState && convState->remainingChars) {
         // we have one surrogate char to be prepended
-        QByteArray in(sizeof(QChar) + len, Qt::Uninitialized);
+        in.resize(sizeof(QChar) + len);
         inBytes = in.data();
 
         QChar remaining = convState->state_data[0];
diff --git a/src/corelib/codecs/qtextcodec.cpp b/src/corelib/codecs/qtextcodec.cpp
index bca36a6..354f29b 100644
--- a/src/corelib/codecs/qtextcodec.cpp
+++ b/src/corelib/codecs/qtextcodec.cpp
@@ -104,6 +104,10 @@ Q_GLOBAL_STATIC_WITH_ARGS(QFactoryLoader, loader,
     (QTextCodecFactoryInterface_iid, QLatin1String("/codecs")))
 #endif
 
+static char qtolower(register char c)
+{ if (c >= 'A' && c <= 'Z') return c + 0x20; return c; }
+static bool qisalnum(register char c)
+{ return (c >= '0' && c <= '9') || ((c | 0x20) >= 'a' && (c | 0x20) <= 'z'); }
 
 static bool nameMatch(const QByteArray &name, const QByteArray &test)
 {
@@ -116,21 +120,21 @@ static bool nameMatch(const QByteArray &name, const QByteArray &test)
 
     // if the letters and numbers are the same, we have a match
     while (*n != '\0') {
-        if (isalnum((uchar)*n)) {
+        if (qisalnum(*n)) {
             for (;;) {
                 if (*h == '\0')
                     return false;
-                if (isalnum((uchar)*h))
+                if (qisalnum(*h))
                     break;
                 ++h;
             }
-            if (tolower((uchar)*n) != tolower((uchar)*h))
+            if (qtolower(*n) != qtolower(*h))
                 return false;
             ++h;
         }
         ++n;
     }
-    while (*h && !isalnum((uchar)*h))
+    while (*h && !qisalnum(*h))
            ++h;
     return (*h == '\0');
 }
@@ -246,9 +250,9 @@ QString QWindowsLocalCodec::convertToUnicode(const char *chars, int length, Conv
         return QString();
 
     const int wclen_auto = 4096;
-    WCHAR wc_auto[wclen_auto];
+    wchar_t wc_auto[wclen_auto];
     int wclen = wclen_auto;
-    WCHAR *wc = wc_auto;
+    wchar_t *wc = wc_auto;
     int len;
     QString sp;
     bool prepend = false;
@@ -288,7 +292,7 @@ QString QWindowsLocalCodec::convertToUnicode(const char *chars, int length, Conv
             } else {
                 wclen = MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED,
                                     mb, mblen, 0, 0);
-                wc = new WCHAR[wclen];
+                wc = new wchar_t[wclen];
                 // and try again...
             }
         } else if (r == ERROR_NO_UNICODE_TRANSLATION) {
@@ -354,7 +358,7 @@ QString QWindowsLocalCodec::convertToUnicodeCharByChar(const char *chars, int le
     const char *next = 0;
     QString s;
     while((next = CharNextExA(CP_ACP, mb, 0)) != mb) {
-        WCHAR wc[2] ={0};
+        wchar_t wc[2] ={0};
         int charlength = next - mb;
         int len = MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED|MB_ERR_INVALID_CHARS, mb, charlength, wc, 2);
         if (len>0) {
@@ -1059,16 +1063,10 @@ QList<int> QTextCodec::availableMibs()
     This might be needed for some applications that want to use their
     own mechanism for setting the locale.
 
-    Setting this codec is not supported on DOS based Windows.
-
     \sa codecForLocale()
 */
 void QTextCodec::setCodecForLocale(QTextCodec *c)
 {
-#ifdef Q_WS_WIN
-    if (QSysInfo::WindowsVersion& QSysInfo::WV_DOS_based)
-	return;
-#endif
     localeMapper = c;
     if (!localeMapper)
         setupLocaleMapper();
@@ -1555,9 +1553,13 @@ QTextCodec *QTextCodec::codecForHtml(const QByteArray &ba, QTextCodec *defaultCo
 }
 
 /*!
-  \overload
+    \overload
 
-  If the codec cannot be detected, this overload returns a Latin-1 QTextCodec.
+    Tries to detect the encoding of the provided snippet of HTML in
+    the given byte array, \a ba, by checking the BOM (Byte Order Mark)
+    and the content-type meta header and returns a QTextCodec instance
+    that is capable of decoding the html to unicode. If the codec cannot
+    be detected, this overload returns a Latin-1 QTextCodec.
 */
 QTextCodec *QTextCodec::codecForHtml(const QByteArray &ba)
 {
@@ -1569,10 +1571,13 @@ QTextCodec *QTextCodec::codecForHtml(const QByteArray &ba)
 
     Tries to detect the encoding of the provided snippet \a ba by
     using the BOM (Byte Order Mark) and returns a QTextCodec instance
-    that is capable of decoding the text to unicode.  If the codec
+    that is capable of decoding the text to unicode. If the codec
     cannot be detected from the content provided, \a defaultCodec is
     returned.
 
+    The behavior of this function is undefined if \a ba is not
+    encoded in unicode.
+
     \sa codecForHtml()
 */
 QTextCodec *QTextCodec::codecForUtfText(const QByteArray &ba, QTextCodec *defaultCodec)
@@ -1610,9 +1615,17 @@ QTextCodec *QTextCodec::codecForUtfText(const QByteArray &ba, QTextCodec *defaul
 }
 
 /*!
-  \overload
+    \overload
 
-  If the codec cannot be detected, this overload returns a Latin-1 QTextCodec.
+    Tries to detect the encoding of the provided snippet \a ba by
+    using the BOM (Byte Order Mark) and returns a QTextCodec instance
+    that is capable of decoding the text to unicode. If the codec
+    cannot be detected, this overload returns a Latin-1 QTextCodec.
+
+    The behavior of this function is undefined if \a ba is not
+    encoded in unicode.
+
+    \sa codecForHtml()
 */
 QTextCodec *QTextCodec::codecForUtfText(const QByteArray &ba)
 {
diff --git a/src/corelib/codecs/qtextcodec_p.h b/src/corelib/codecs/qtextcodec_p.h
index 499c0f9..5c82735 100644
--- a/src/corelib/codecs/qtextcodec_p.h
+++ b/src/corelib/codecs/qtextcodec_p.h
@@ -77,6 +77,33 @@ struct QTextCodecUnalignedPointer
     }
 };
 
+#else
+
+class QTextCodec
+{
+public:
+    enum ConversionFlag {
+        DefaultConversion,
+        ConvertInvalidToNull = 0x80000000,
+        IgnoreHeader = 0x1,
+        FreeFunction = 0x2
+    };
+    Q_DECLARE_FLAGS(ConversionFlags, ConversionFlag)
+
+    struct ConverterState {
+        ConverterState(ConversionFlags f = DefaultConversion)
+            : flags(f), remainingChars(0), invalidChars(0), d(0) { state_data[0] = state_data[1] = state_data[2] = 0; }
+        ~ConverterState() { }
+        ConversionFlags flags;
+        int remainingChars;
+        int invalidChars;
+        uint state_data[3];
+        void *d;
+    private:
+        Q_DISABLE_COPY(ConverterState)
+    };
+};
+
 #endif //QT_NO_TEXTCODEC
 
 QT_END_NAMESPACE
diff --git a/src/corelib/codecs/qutfcodec.cpp b/src/corelib/codecs/qutfcodec.cpp
index abae6f7..abcc07c 100644
--- a/src/corelib/codecs/qutfcodec.cpp
+++ b/src/corelib/codecs/qutfcodec.cpp
@@ -44,23 +44,19 @@
 #include "qendian.h"
 #include "qchar.h"
 
-#ifndef QT_NO_TEXTCODEC
-
 QT_BEGIN_NAMESPACE
 
-QUtf8Codec::~QUtf8Codec()
-{
-}
+enum { Endian = 0, Data = 1 };
 
-QByteArray QUtf8Codec::convertFromUnicode(const QChar *uc, int len, ConverterState *state) const
+QByteArray QUtf8::convertFromUnicode(const QChar *uc, int len, QTextCodec::ConverterState *state)
 {
     uchar replacement = '?';
     int rlen = 3*len;
     int surrogate_high = -1;
     if (state) {
-        if (state->flags & ConvertInvalidToNull)
+        if (state->flags & QTextCodec::ConvertInvalidToNull)
             replacement = 0;
-        if (!(state->flags & IgnoreHeader))
+        if (!(state->flags & QTextCodec::IgnoreHeader))
             rlen += 3;
         if (state->remainingChars)
             surrogate_high = state->state_data[0];
@@ -71,7 +67,7 @@ QByteArray QUtf8Codec::convertFromUnicode(const QChar *uc, int len, ConverterSta
     uchar* cursor = (uchar*)rstr.data();
     const QChar *ch = uc;
     int invalid = 0;
-    if (state && !(state->flags & IgnoreHeader)) {
+    if (state && !(state->flags & QTextCodec::IgnoreHeader)) {
         *cursor++ = 0xef;
         *cursor++ = 0xbb;
         *cursor++ = 0xbf;
@@ -133,7 +129,7 @@ QByteArray QUtf8Codec::convertFromUnicode(const QChar *uc, int len, ConverterSta
     rstr.resize(cursor - (const uchar*)rstr.constData());
     if (state) {
         state->invalidChars += invalid;
-        state->flags |= IgnoreHeader;
+        state->flags |= QTextCodec::IgnoreHeader;
         state->remainingChars = 0;
         if (surrogate_high >= 0) {
             state->remainingChars = 1;
@@ -143,18 +139,18 @@ QByteArray QUtf8Codec::convertFromUnicode(const QChar *uc, int len, ConverterSta
     return rstr;
 }
 
-void QUtf8Codec::convertToUnicode(QString *target, const char *chars, int len, ConverterState *state) const
+QString QUtf8::convertToUnicode(const char *chars, int len, QTextCodec::ConverterState *state)
 {
     bool headerdone = false;
-    QChar replacement = QChar::ReplacementCharacter;
+    ushort replacement = QChar::ReplacementCharacter;
     int need = 0;
     int error = -1;
     uint uc = 0;
     uint min_uc = 0;
     if (state) {
-        if (state->flags & IgnoreHeader)
+        if (state->flags & QTextCodec::IgnoreHeader)
             headerdone = true;
-        if (state->flags & ConvertInvalidToNull)
+        if (state->flags & QTextCodec::ConvertInvalidToNull)
             replacement = QChar::Null;
         need = state->remainingChars;
         if (need) {
@@ -170,40 +166,28 @@ void QUtf8Codec::convertToUnicode(QString *target, const char *chars, int len, C
         headerdone = true;
     }
 
-    int originalLength = target->length();
-    QString &result = *target;
-    result.resize(originalLength + len + 1); // worst case
-    QChar *qch = result.data() + originalLength;
+    QString result(need + len + 1, Qt::Uninitialized); // worst case
+    ushort *qch = (ushort *)result.unicode();
     uchar ch;
     int invalid = 0;
 
-    for (int i=0; i<len; i++) {
+    for (int i = 0; i < len; ++i) {
         ch = chars[i];
         if (need) {
             if ((ch&0xc0) == 0x80) {
                 uc = (uc << 6) | (ch & 0x3f);
-                need--;
+                --need;
                 if (!need) {
                     // utf-8 bom composes into 0xfeff code point
                     if (!headerdone && uc == 0xfeff) {
                         // dont do anything, just skip the BOM
                     } else if (uc > 0xffff && uc < 0x110000) {
                         // surrogate pair
-                        uc -= 0x10000;
-                        unsigned short high = uc/0x400 + 0xd800;
-                        unsigned short low = uc%0x400 + 0xdc00;
-
-                        // resize if necessary
-                        long where = qch - result.unicode();
-                        if (where + 2 >= result.length()) {
-                            result.resize(where + 2);
-                            qch = result.data() + where;
-                        }
-
-                        *qch++ = QChar(high);
-                        *qch++ = QChar(low);
+                        Q_ASSERT((qch - (ushort*)result.unicode()) + 2 < result.length());
+                        *qch++ = QChar::highSurrogate(uc);
+                        *qch++ = QChar::lowSurrogate(uc);
                     } else if ((uc < min_uc) || (uc >= 0xd800 && uc <= 0xdfff) || (uc >= 0xfffe)) {
-                        // error
+                        // error: overlong sequence, UTF16 surrogate or BOM
                         *qch++ = replacement;
                         ++invalid;
                     } else {
@@ -221,7 +205,7 @@ void QUtf8Codec::convertToUnicode(QString *target, const char *chars, int len, C
             }
         } else {
             if (ch < 128) {
-                *qch++ = QLatin1Char(ch);
+                *qch++ = ushort(ch);
                 headerdone = true;
             } else if ((ch & 0xe0) == 0xc0) {
                 uc = ch & 0x1f;
@@ -255,57 +239,35 @@ void QUtf8Codec::convertToUnicode(QString *target, const char *chars, int len, C
             ++invalid;
         }
     }
-    result.truncate(qch - result.unicode());
+    result.truncate(qch - (ushort *)result.unicode());
     if (state) {
         state->invalidChars += invalid;
         state->remainingChars = need;
         if (headerdone)
-            state->flags |= IgnoreHeader;
+            state->flags |= QTextCodec::IgnoreHeader;
         state->state_data[0] = need ? uc : 0;
         state->state_data[1] = need ? min_uc : 0;
     }
-}
-
-QString QUtf8Codec::convertToUnicode(const char *chars, int len, ConverterState *state) const
-{
-    QString result;
-    convertToUnicode(&result, chars, len, state);
     return result;
 }
 
-QByteArray QUtf8Codec::name() const
-{
-    return "UTF-8";
-}
-
-int QUtf8Codec::mibEnum() const
-{
-    return 106;
-}
-
-enum { Endian = 0, Data = 1 };
-
-QUtf16Codec::~QUtf16Codec()
-{
-}
-
-QByteArray QUtf16Codec::convertFromUnicode(const QChar *uc, int len, ConverterState *state) const
+QByteArray QUtf16::convertFromUnicode(const QChar *uc, int len, QTextCodec::ConverterState *state, DataEndianness e)
 {
-    Endianness endian = e;
+    DataEndianness endian = e;
     int length =  2*len;
-    if (!state || (!(state->flags & IgnoreHeader))) {
+    if (!state || (!(state->flags & QTextCodec::IgnoreHeader))) {
         length += 2;
     }
-    if (e == Detect) {
-        endian = (QSysInfo::ByteOrder == QSysInfo::BigEndian) ? BE : LE;
+    if (e == DetectEndianness) {
+        endian = (QSysInfo::ByteOrder == QSysInfo::BigEndian) ? BigEndianness : LittleEndianness;
     }
 
     QByteArray d;
     d.resize(length);
     char *data = d.data();
-    if (!state || !(state->flags & IgnoreHeader)) {
+    if (!state || !(state->flags & QTextCodec::IgnoreHeader)) {
         QChar bom(QChar::ByteOrderMark);
-        if (endian == BE) {
+        if (endian == BigEndianness) {
             data[0] = bom.row();
             data[1] = bom.cell();
         } else {
@@ -314,7 +276,7 @@ QByteArray QUtf16Codec::convertFromUnicode(const QChar *uc, int len, ConverterSt
         }
         data += 2;
     }
-    if (endian == BE) {
+    if (endian == BigEndianness) {
         for (int i = 0; i < len; ++i) {
             *(data++) = uc[i].row();
             *(data++) = uc[i].cell();
@@ -328,35 +290,35 @@ QByteArray QUtf16Codec::convertFromUnicode(const QChar *uc, int len, ConverterSt
 
     if (state) {
         state->remainingChars = 0;
-        state->flags |= IgnoreHeader;
+        state->flags |= QTextCodec::IgnoreHeader;
     }
     return d;
 }
 
-QString QUtf16Codec::convertToUnicode(const char *chars, int len, ConverterState *state) const
+QString QUtf16::convertToUnicode(const char *chars, int len, QTextCodec::ConverterState *state, DataEndianness e)
 {
-    Endianness endian = e;
+    DataEndianness endian = e;
     bool half = false;
     uchar buf = 0;
     bool headerdone = false;
     if (state) {
-        headerdone = state->flags & IgnoreHeader;
-        if (endian == Detect)
-            endian = (Endianness)state->state_data[Endian];
+        headerdone = state->flags & QTextCodec::IgnoreHeader;
+        if (endian == DetectEndianness)
+            endian = (DataEndianness)state->state_data[Endian];
         if (state->remainingChars) {
             half = true;
             buf = state->state_data[Data];
         }
     }
-    if (headerdone && endian == Detect)
-        endian = (QSysInfo::ByteOrder == QSysInfo::BigEndian) ? BE : LE;
+    if (headerdone && endian == DetectEndianness)
+        endian = (QSysInfo::ByteOrder == QSysInfo::BigEndian) ? BigEndianness : LittleEndianness;
 
     QString result(len, Qt::Uninitialized); // worst case
     QChar *qch = (QChar *)result.unicode();
     while (len--) {
         if (half) {
             QChar ch;
-            if (endian == LE) {
+            if (endian == LittleEndianness) {
                 ch.setRow(*chars++);
                 ch.setCell(buf);
             } else {
@@ -364,17 +326,17 @@ QString QUtf16Codec::convertToUnicode(const char *chars, int len, ConverterState
                 ch.setCell(*chars++);
             }
             if (!headerdone) {
-                if (endian == Detect) {
-                    if (ch == QChar::ByteOrderSwapped && endian != BE) {
-                        endian = LE;
-                    } else if (ch == QChar::ByteOrderMark && endian != LE) {
+                if (endian == DetectEndianness) {
+                    if (ch == QChar::ByteOrderSwapped && endian != BigEndianness) {
+                        endian = LittleEndianness;
+                    } else if (ch == QChar::ByteOrderMark && endian != LittleEndianness) {
                         // ignore BOM
-                        endian = BE;
+                        endian = BigEndianness;
                     } else {
                         if (QSysInfo::ByteOrder == QSysInfo::BigEndian) {
-                            endian = BE;
+                            endian = BigEndianness;
                         } else {
-                            endian = LE;
+                            endian = LittleEndianness;
                             ch = QChar((ch.unicode() >> 8) | ((ch.unicode() & 0xff) << 8));
                         }
                         *qch++ = ch;
@@ -396,7 +358,7 @@ QString QUtf16Codec::convertToUnicode(const char *chars, int len, ConverterState
 
     if (state) {
         if (headerdone)
-            state->flags |= IgnoreHeader;
+            state->flags |= QTextCodec::IgnoreHeader;
         state->state_data[Endian] = endian;
         if (half) {
             state->remainingChars = 1;
@@ -409,72 +371,21 @@ QString QUtf16Codec::convertToUnicode(const char *chars, int len, ConverterState
     return result;
 }
 
-int QUtf16Codec::mibEnum() const
-{
-    return 1015;
-}
-
-QByteArray QUtf16Codec::name() const
-{
-    return "UTF-16";
-}
-
-QList<QByteArray> QUtf16Codec::aliases() const
-{
-    return QList<QByteArray>();
-}
-
-int QUtf16BECodec::mibEnum() const
-{
-    return 1013;
-}
-
-QByteArray QUtf16BECodec::name() const
-{
-    return "UTF-16BE";
-}
-
-QList<QByteArray> QUtf16BECodec::aliases() const
-{
-    QList<QByteArray> list;
-    return list;
-}
-
-int QUtf16LECodec::mibEnum() const
-{
-    return 1014;
-}
-
-QByteArray QUtf16LECodec::name() const
-{
-    return "UTF-16LE";
-}
-
-QList<QByteArray> QUtf16LECodec::aliases() const
-{
-    QList<QByteArray> list;
-    return list;
-}
-
-QUtf32Codec::~QUtf32Codec()
-{
-}
-
-QByteArray QUtf32Codec::convertFromUnicode(const QChar *uc, int len, ConverterState *state) const
+QByteArray QUtf32::convertFromUnicode(const QChar *uc, int len, QTextCodec::ConverterState *state, DataEndianness e)
 {
-    Endianness endian = e;
+    DataEndianness endian = e;
     int length =  4*len;
-    if (!state || (!(state->flags & IgnoreHeader))) {
+    if (!state || (!(state->flags & QTextCodec::IgnoreHeader))) {
         length += 4;
     }
-    if (e == Detect) {
-        endian = (QSysInfo::ByteOrder == QSysInfo::BigEndian) ? BE : LE;
+    if (e == DetectEndianness) {
+        endian = (QSysInfo::ByteOrder == QSysInfo::BigEndian) ? BigEndianness : LittleEndianness;
     }
 
     QByteArray d(length, Qt::Uninitialized);
     char *data = d.data();
-    if (!state || !(state->flags & IgnoreHeader)) {
-        if (endian == BE) {
+    if (!state || !(state->flags & QTextCodec::IgnoreHeader)) {
+        if (endian == BigEndianness) {
             data[0] = 0;
             data[1] = 0;
             data[2] = (char)0xfe;
@@ -487,7 +398,7 @@ QByteArray QUtf32Codec::convertFromUnicode(const QChar *uc, int len, ConverterSt
         }
         data += 4;
     }
-    if (endian == BE) {
+    if (endian == BigEndianness) {
         for (int i = 0; i < len; ++i) {
             uint cp = uc[i].unicode();
             if (uc[i].isHighSurrogate() && i < len - 1)
@@ -511,59 +422,59 @@ QByteArray QUtf32Codec::convertFromUnicode(const QChar *uc, int len, ConverterSt
 
     if (state) {
         state->remainingChars = 0;
-        state->flags |= IgnoreHeader;
+        state->flags |= QTextCodec::IgnoreHeader;
     }
     return d;
 }
 
-QString QUtf32Codec::convertToUnicode(const char *chars, int len, ConverterState *state) const
+QString QUtf32::convertToUnicode(const char *chars, int len, QTextCodec::ConverterState *state, DataEndianness e)
 {
-    Endianness endian = e;
+    DataEndianness endian = e;
     uchar tuple[4];
     int num = 0;
     bool headerdone = false;
     if (state) {
-        headerdone = state->flags & IgnoreHeader;
-        if (endian == Detect) {
-            endian = (Endianness)state->state_data[Endian];
+        headerdone = state->flags & QTextCodec::IgnoreHeader;
+        if (endian == DetectEndianness) {
+            endian = (DataEndianness)state->state_data[Endian];
         }
         num = state->remainingChars;
         memcpy(tuple, &state->state_data[Data], 4);
     }
-    if (headerdone && endian == Detect)
-        endian = (QSysInfo::ByteOrder == QSysInfo::BigEndian) ? BE : LE;
+    if (headerdone && endian == DetectEndianness)
+        endian = (QSysInfo::ByteOrder == QSysInfo::BigEndian) ? BigEndianness : LittleEndianness;
 
     QString result;
     result.resize((num + len) >> 2 << 1); // worst case
     QChar *qch = (QChar *)result.unicode();
-    
+
     const char *end = chars + len;
     while (chars < end) {
         tuple[num++] = *chars++;
         if (num == 4) {
             if (!headerdone) {
-                if (endian == Detect) {
-                    if (endian == Detect) {
-                        if (tuple[0] == 0xff && tuple[1] == 0xfe && tuple[2] == 0 && tuple[3] == 0 && endian != BE) {
-                            endian = LE;
+                if (endian == DetectEndianness) {
+                    if (endian == DetectEndianness) {
+                        if (tuple[0] == 0xff && tuple[1] == 0xfe && tuple[2] == 0 && tuple[3] == 0 && endian != BigEndianness) {
+                            endian = LittleEndianness;
                             num = 0;
                             continue;
-                        } else if (tuple[0] == 0 && tuple[1] == 0 && tuple[2] == 0xfe && tuple[3] == 0xff && endian != LE) {
-                            endian = BE;
+                        } else if (tuple[0] == 0 && tuple[1] == 0 && tuple[2] == 0xfe && tuple[3] == 0xff && endian != LittleEndianness) {
+                            endian = BigEndianness;
                             num = 0;
                             continue;
                         } else if (QSysInfo::ByteOrder == QSysInfo::BigEndian) {
-                            endian = BE;
+                            endian = BigEndianness;
                         } else {
-                            endian = LE;
+                            endian = LittleEndianness;
                         }
                     }
-                } else if (((endian == BE) ? qFromBigEndian<quint32>(tuple) : qFromLittleEndian<quint32>(tuple)) == QChar::ByteOrderMark) {
+                } else if (((endian == BigEndianness) ? qFromBigEndian<quint32>(tuple) : qFromLittleEndian<quint32>(tuple)) == QChar::ByteOrderMark) {
                     num = 0;
                     continue;
                 }
             }
-            uint code = (endian == BE) ? qFromBigEndian<quint32>(tuple) : qFromLittleEndian<quint32>(tuple);
+            uint code = (endian == BigEndianness) ? qFromBigEndian<quint32>(tuple) : qFromLittleEndian<quint32>(tuple);
             if (code >= 0x10000) {
                 *qch++ = QChar::highSurrogate(code);
                 *qch++ = QChar::lowSurrogate(code);
@@ -574,10 +485,10 @@ QString QUtf32Codec::convertToUnicode(const char *chars, int len, ConverterState
         }
     }
     result.truncate(qch - result.unicode());
-    
+
     if (state) {
         if (headerdone)
-            state->flags |= IgnoreHeader;
+            state->flags |= QTextCodec::IgnoreHeader;
         state->state_data[Endian] = endian;
         state->remainingChars = num;
         memcpy(&state->state_data[Data], tuple, 4);
@@ -585,6 +496,113 @@ QString QUtf32Codec::convertToUnicode(const char *chars, int len, ConverterState
     return result;
 }
 
+
+#ifndef QT_NO_TEXTCODEC
+
+QUtf8Codec::~QUtf8Codec()
+{
+}
+
+QByteArray QUtf8Codec::convertFromUnicode(const QChar *uc, int len, ConverterState *state) const
+{
+    return QUtf8::convertFromUnicode(uc, len, state);
+}
+
+void QUtf8Codec::convertToUnicode(QString *target, const char *chars, int len, ConverterState *state) const
+{
+    *target += QUtf8::convertToUnicode(chars, len, state);
+}
+
+QString QUtf8Codec::convertToUnicode(const char *chars, int len, ConverterState *state) const
+{
+    return QUtf8::convertToUnicode(chars, len, state);
+}
+
+QByteArray QUtf8Codec::name() const
+{
+    return "UTF-8";
+}
+
+int QUtf8Codec::mibEnum() const
+{
+    return 106;
+}
+
+QUtf16Codec::~QUtf16Codec()
+{
+}
+
+QByteArray QUtf16Codec::convertFromUnicode(const QChar *uc, int len, ConverterState *state) const
+{
+    return QUtf16::convertFromUnicode(uc, len, state, e);
+}
+
+QString QUtf16Codec::convertToUnicode(const char *chars, int len, ConverterState *state) const
+{
+    return QUtf16::convertToUnicode(chars, len, state, e);
+}
+
+int QUtf16Codec::mibEnum() const
+{
+    return 1015;
+}
+
+QByteArray QUtf16Codec::name() const
+{
+    return "UTF-16";
+}
+
+QList<QByteArray> QUtf16Codec::aliases() const
+{
+    return QList<QByteArray>();
+}
+
+int QUtf16BECodec::mibEnum() const
+{
+    return 1013;
+}
+
+QByteArray QUtf16BECodec::name() const
+{
+    return "UTF-16BE";
+}
+
+QList<QByteArray> QUtf16BECodec::aliases() const
+{
+    QList<QByteArray> list;
+    return list;
+}
+
+int QUtf16LECodec::mibEnum() const
+{
+    return 1014;
+}
+
+QByteArray QUtf16LECodec::name() const
+{
+    return "UTF-16LE";
+}
+
+QList<QByteArray> QUtf16LECodec::aliases() const
+{
+    QList<QByteArray> list;
+    return list;
+}
+
+QUtf32Codec::~QUtf32Codec()
+{
+}
+
+QByteArray QUtf32Codec::convertFromUnicode(const QChar *uc, int len, ConverterState *state) const
+{
+    return QUtf32::convertFromUnicode(uc, len, state, e);
+}
+
+QString QUtf32Codec::convertToUnicode(const char *chars, int len, ConverterState *state) const
+{
+    return QUtf32::convertToUnicode(chars, len, state, e);
+}
+
 int QUtf32Codec::mibEnum() const
 {
     return 1017;
@@ -633,7 +651,6 @@ QList<QByteArray> QUtf32LECodec::aliases() const
     return list;
 }
 
+#endif //QT_NO_TEXTCODEC
 
 QT_END_NAMESPACE
-
-#endif //QT_NO_TEXTCODEC
diff --git a/src/corelib/codecs/qutfcodec_p.h b/src/corelib/codecs/qutfcodec_p.h
index 749f5be..4f8f92e 100644
--- a/src/corelib/codecs/qutfcodec_p.h
+++ b/src/corelib/codecs/qutfcodec_p.h
@@ -54,9 +54,35 @@
 //
 
 #include "QtCore/qtextcodec.h"
+#include "private/qtextcodec_p.h"
 
 QT_BEGIN_NAMESPACE
 
+enum DataEndianness
+{
+    DetectEndianness,
+    BigEndianness,
+    LittleEndianness
+};
+
+struct QUtf8
+{
+    static QString convertToUnicode(const char *, int, QTextCodec::ConverterState *);
+    static QByteArray convertFromUnicode(const QChar *, int, QTextCodec::ConverterState *);
+};
+
+struct QUtf16
+{
+    static QString convertToUnicode(const char *, int, QTextCodec::ConverterState *, DataEndianness = DetectEndianness);
+    static QByteArray convertFromUnicode(const QChar *, int, QTextCodec::ConverterState *, DataEndianness = DetectEndianness);
+};
+
+struct QUtf32
+{
+    static QString convertToUnicode(const char *, int, QTextCodec::ConverterState *, DataEndianness = DetectEndianness);
+    static QByteArray convertFromUnicode(const QChar *, int, QTextCodec::ConverterState *, DataEndianness = DetectEndianness);
+};
+
 #ifndef QT_NO_TEXTCODEC
 
 class QUtf8Codec : public QTextCodec {
@@ -73,13 +99,8 @@ public:
 
 class QUtf16Codec : public QTextCodec {
 protected:
-    enum Endianness {
-        Detect,
-        BE,
-        LE
-    };
 public:
-    QUtf16Codec() { e = Detect; }
+    QUtf16Codec() { e = DetectEndianness; }
     ~QUtf16Codec();
 
     QByteArray name() const;
@@ -90,12 +111,12 @@ public:
     QByteArray convertFromUnicode(const QChar *, int, ConverterState *) const;
 
 protected:
-    Endianness e;
+    DataEndianness e;
 };
 
 class QUtf16BECodec : public QUtf16Codec {
 public:
-    QUtf16BECodec() : QUtf16Codec() { e = BE; }
+    QUtf16BECodec() : QUtf16Codec() { e = BigEndianness; }
     QByteArray name() const;
     QList<QByteArray> aliases() const;
     int mibEnum() const;
@@ -103,21 +124,15 @@ public:
 
 class QUtf16LECodec : public QUtf16Codec {
 public:
-    QUtf16LECodec() : QUtf16Codec() { e = LE; }
+    QUtf16LECodec() : QUtf16Codec() { e = LittleEndianness; }
     QByteArray name() const;
     QList<QByteArray> aliases() const;
     int mibEnum() const;
 };
 
 class QUtf32Codec : public QTextCodec {
-protected:
-    enum Endianness {
-        Detect,
-        BE,
-        LE
-    };
 public:
-    QUtf32Codec() { e = Detect; }
+    QUtf32Codec() { e = DetectEndianness; }
     ~QUtf32Codec();
 
     QByteArray name() const;
@@ -128,12 +143,12 @@ public:
     QByteArray convertFromUnicode(const QChar *, int, ConverterState *) const;
 
 protected:
-    Endianness e;
+    DataEndianness e;
 };
 
 class QUtf32BECodec : public QUtf32Codec {
 public:
-    QUtf32BECodec() : QUtf32Codec() { e = BE; }
+    QUtf32BECodec() : QUtf32Codec() { e = BigEndianness; }
     QByteArray name() const;
     QList<QByteArray> aliases() const;
     int mibEnum() const;
@@ -141,7 +156,7 @@ public:
 
 class QUtf32LECodec : public QUtf32Codec {
 public:
-    QUtf32LECodec() : QUtf32Codec() { e = LE; }
+    QUtf32LECodec() : QUtf32Codec() { e = LittleEndianness; }
     QByteArray name() const;
     QList<QByteArray> aliases() const;
     int mibEnum() const;
diff --git a/src/corelib/concurrent/qfuture.h b/src/corelib/concurrent/qfuture.h
index 47015ee..f2db5ac 100644
--- a/src/corelib/concurrent/qfuture.h
+++ b/src/corelib/concurrent/qfuture.h
@@ -210,7 +210,7 @@ public:
     bool operator==(const QFuture &other) const { return (d == other.d); }
     bool operator!=(const QFuture &other) const { return (d != other.d); }
 
-#ifndef QT_NO_MEMBER_TEMPLATES
+#if !defined(QT_NO_MEMBER_TEMPLATES) && !defined(Q_CC_XLC)
     template <typename T>
     QFuture(const QFuture<T> &other)
         : d(other.d)
diff --git a/src/corelib/concurrent/qtconcurrentiteratekernel.cpp b/src/corelib/concurrent/qtconcurrentiteratekernel.cpp
index ffbb479..caf8bac 100644
--- a/src/corelib/concurrent/qtconcurrentiteratekernel.cpp
+++ b/src/corelib/concurrent/qtconcurrentiteratekernel.cpp
@@ -42,20 +42,14 @@
 #include "qtconcurrentiteratekernel.h"
 
 #if defined(Q_OS_MAC)
-
 #include <mach/mach.h>
 #include <mach/mach_time.h>
 #include <unistd.h>
-
 #elif defined(Q_OS_UNIX)
-
 #include <time.h>
 #include <unistd.h>
-
 #elif defined(Q_OS_WIN)
-
-#include <windows.h>
-
+#include <qt_windows.h>
 #endif
 
 
diff --git a/src/corelib/concurrent/qtconcurrentmap.cpp b/src/corelib/concurrent/qtconcurrentmap.cpp
index b8c753a..797f335 100644
--- a/src/corelib/concurrent/qtconcurrentmap.cpp
+++ b/src/corelib/concurrent/qtconcurrentmap.cpp
@@ -41,13 +41,14 @@
 
 /*!
     \namespace QtConcurrent
+    \inmodule QtCore
     \since 4.4
     \brief The QtConcurrent namespace provides high-level APIs that make it
     possible to write multi-threaded programs without using low-level
     threading primitives.
 
     See the \l {threads.html#qtconcurrent-intro}{Qt Concurrent} section in the \l{threads.html}{threading} documentation.
-    
+    \inheaderfile QtCore
     \ingroup thread
 */
 
diff --git a/src/corelib/global/qglobal.cpp b/src/corelib/global/qglobal.cpp
index 76ffb6a..0a8f5b9 100644
--- a/src/corelib/global/qglobal.cpp
+++ b/src/corelib/global/qglobal.cpp
@@ -922,7 +922,7 @@ QT_BEGIN_NAMESPACE
     \fn bool qt_winUnicode()
     \relates <QtGlobal>
 
-    Use QSysInfo::WindowsVersion and QSysInfo::WV_DOS_based instead.
+    This function always returns true.
 
     \sa QSysInfo
 */
@@ -1673,15 +1673,11 @@ QSysInfo::WinVersion QSysInfo::windowsVersion()
     if (winver)
         return winver;
     winver = QSysInfo::WV_NT;
-#ifndef Q_OS_WINCE
-    OSVERSIONINFOA osver;
-    osver.dwOSVersionInfoSize = sizeof(osver);
-    GetVersionExA(&osver);
-#else
-    DWORD qt_cever = 0;
     OSVERSIONINFOW osver;
     osver.dwOSVersionInfoSize = sizeof(osver);
     GetVersionEx(&osver);
+#ifdef Q_OS_WINCE
+    DWORD qt_cever = 0;
     qt_cever = osver.dwMajorVersion * 100;
     qt_cever += osver.dwMinorVersion * 10;
 #endif
@@ -1725,7 +1721,7 @@ QSysInfo::WinVersion QSysInfo::windowsVersion()
             winver = QSysInfo::WV_WINDOWS7;
         } else {
             qWarning("Qt: Untested Windows version %d.%d detected!",
-                     osver.dwMajorVersion, osver.dwMinorVersion);
+                     int(osver.dwMajorVersion), int(osver.dwMinorVersion));
             winver = QSysInfo::WV_NT_based;
         }
     }
@@ -2049,29 +2045,16 @@ QString qt_error_string(int errorCode)
         break;
     default: {
 #ifdef Q_OS_WIN
-        QT_WA({
-            unsigned short *string = 0;
-            FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER|FORMAT_MESSAGE_FROM_SYSTEM,
-                          NULL,
-                          errorCode,
-                          MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
-                          (LPTSTR)&string,
-                          0,
-                          NULL);
-            ret = QString::fromUtf16(string);
-            LocalFree((HLOCAL)string);
-        }, {
-            char *string = 0;
-            FormatMessageA(FORMAT_MESSAGE_ALLOCATE_BUFFER|FORMAT_MESSAGE_FROM_SYSTEM,
-                           NULL,
-                           errorCode,
-                           MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
-                           (LPSTR)&string,
-                           0,
-                           NULL);
-            ret = QString::fromLocal8Bit(string);
-            LocalFree((HLOCAL)string);
-        });
+        wchar_t *string = 0;
+        FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER|FORMAT_MESSAGE_FROM_SYSTEM,
+                      NULL,
+                      errorCode,
+                      MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
+                      string,
+                      0,
+                      NULL);
+        ret = QString::fromWCharArray(string);
+        LocalFree((HLOCAL)string);
 
         if (ret.isEmpty() && errorCode == ERROR_MOD_NOT_FOUND)
             ret = QString::fromLatin1("The specified module could not be found.");
@@ -2672,6 +2655,62 @@ int qrand()
 */
 
 /*!
+    \fn QString qtTrId(const char *id, int n = -1)
+    \relates <QtGlobal>
+    \reentrant
+    \since 4.6
+
+    Returns a translated string identified by \a id.
+    If no matching string is found, the id itself is returned. This
+    should not happen under normal conditions.
+
+    If \a n >= 0, all occurrences of \c %n in the resulting string
+    are replaced with a decimal representation of \a n. In addition,
+    depending on \a n's value, the translation text may vary.
+
+    Meta data and comments can be passed as documented for QObject::tr().
+    In addition, it is possible to supply a source string template like that:
+
+    \tt{//% <C string>}
+
+    or
+
+    \tt{\begincomment% <C string> \endcomment}
+
+    Example:
+
+    \snippet doc/src/snippets/code/src_corelib_global_qglobal.cpp qttrid
+
+    Creating QM files suitable for use with this function requires passing
+    the \c -idbased option to the \c lrelease tool.
+
+    \warning This method is reentrant only if all translators are
+    installed \e before calling this method. Installing or removing
+    translators while performing translations is not supported. Doing
+    so will probably result in crashes or other undesirable behavior.
+
+    \sa QObject::tr(), QCoreApplication::translate(), {Internationalization with Qt}
+*/
+
+/*!
+    \macro QT_TRID_NOOP(id)
+    \relates <QtGlobal>
+    \since 4.6
+
+    Marks \a id for dynamic translation.
+    The only purpose of this macro is to provide an anchor for attaching
+    meta data like to qtTrId().
+
+    The macro expands to \a id.
+
+    Example:
+
+    \snippet doc/src/snippets/code/src_corelib_global_qglobal.cpp qttrid_noop
+
+    \sa qtTrId(), {Internationalization with Qt}
+*/
+
+/*!
     \macro QT_POINTER_SIZE
     \relates <QtGlobal>
 
diff --git a/src/corelib/global/qglobal.h b/src/corelib/global/qglobal.h
index e6508a8..fb708b5 100644
--- a/src/corelib/global/qglobal.h
+++ b/src/corelib/global/qglobal.h
@@ -148,7 +148,7 @@ namespace QT_NAMESPACE {}
      MSDOS    - MS-DOS and Windows
      OS2      - OS/2
      OS2EMX   - XFree86 on OS/2 (not PM)
-     WIN32    - Win32 (Windows 95/98/ME and Windows NT/2000/XP)
+     WIN32    - Win32 (Windows 2000/XP/Vista/7 and Windows Server 2003/2008)
      WINCE    - WinCE (Windows CE 5.0)
      CYGWIN   - Cygwin
      SOLARIS  - Sun Solaris
@@ -684,7 +684,8 @@ namespace QT_NAMESPACE {}
 #      define Q_ALIGNOF(type)   __alignof__(type)
 #      define Q_TYPEOF(expr)    __typeof__(expr)
 #      define Q_DECL_ALIGN(n)   __attribute__((__aligned__(n)))
-#      define Q_DECL_EXPORT     __attribute__((__visibility__("default")))
+// using CC 5.9: Warning: attribute visibility is unsupported and will be skipped..
+//#      define Q_DECL_EXPORT     __attribute__((__visibility__("default")))
 #    endif
 #    if !defined(_BOOL)
 #      define Q_NO_BOOL_TYPE
@@ -724,7 +725,7 @@ namespace QT_NAMESPACE {}
 #      define Q_DECL_ALIGNED(n) __attribute__((aligned(n)))
 #    endif
 #    if __HP_aCC-0 >= 062000
-#      define Q_DECL_EXPORT     __attribute__((visibility("default"))
+#      define Q_DECL_EXPORT     __attribute__((visibility("default")))
 #      define Q_DECL_IMPORT     Q_DECL_EXPORT
 #    endif
 #  else
@@ -1503,24 +1504,13 @@ inline QT3_SUPPORT bool qSysInfo(int *wordSize, bool *bigEndian)
 
 #if defined(Q_WS_WIN) || defined(Q_OS_CYGWIN)
 #if defined(QT3_SUPPORT)
-inline QT3_SUPPORT bool qt_winUnicode() { return !(QSysInfo::WindowsVersion & QSysInfo::WV_DOS_based); }
+inline QT3_SUPPORT bool qt_winUnicode() { return true; }
 inline QT3_SUPPORT int qWinVersion() { return QSysInfo::WindowsVersion; }
 #endif
 
-#ifdef Q_OS_WINCE
-#define QT_WA(uni, ansi) uni
-#define QT_WA_INLINE(uni, ansi) (uni)
-#elif defined(Q_CC_MWERKS)
-#define QT_WA(uni, ansi) ansi
-#define QT_WA_INLINE(uni, ansi) (ansi)
-#elif defined(UNICODE)
-#define QT_WA(uni, ansi) if (!(QSysInfo::windowsVersion() & QSysInfo::WV_DOS_based)) { uni } else { ansi }
+#define QT_WA(unicode, ansi) unicode
+#define QT_WA_INLINE(unicode, ansi) (unicode)
 
-#define QT_WA_INLINE(uni, ansi) (!(QSysInfo::windowsVersion() & QSysInfo::WV_DOS_based) ? uni : ansi)
-#else
-#define QT_WA(uni, ansi) ansi
-#define QT_WA_INLINE(uni, ansi) ansi
-#endif
 #endif /* Q_WS_WIN */
 
 #ifndef Q_OUTOFLINE_TEMPLATE
@@ -2170,7 +2160,7 @@ public:
 
     inline bool operator!() const { return !i; }
 
-    inline bool testFlag(Enum f) const { return (i & f) == f; }
+    inline bool testFlag(Enum f) const { return (i & f) == f && (f != 0 || i == f ); }
 };
 
 #define Q_DECLARE_FLAGS(Flags, Enum)\
@@ -2306,6 +2296,18 @@ inline const QForeachContainer<T> *qForeachContainer(const QForeachContainerBase
 #define QT_TRANSLATE_NOOP_UTF8(scope, x) (x)
 #define QT_TRANSLATE_NOOP3(scope, x, comment) {x, comment}
 #define QT_TRANSLATE_NOOP3_UTF8(scope, x, comment) {x, comment}
+
+#ifndef QT_NO_TRANSLATION // ### This should enclose the NOOPs above
+
+// Defined in qcoreapplication.cpp
+// The better name qTrId() is reserved for an upcoming function which would
+// return a much more powerful QStringFormatter instead of a QString.
+Q_CORE_EXPORT QString qtTrId(const char *id, int n = -1);
+
+#define QT_TRID_NOOP(id) id
+
+#endif // QT_NO_TRANSLATION
+
 #define QDOC_PROPERTY(text)
 
 /*
@@ -2546,28 +2548,15 @@ QT_LICENSED_MODULE(DBus)
 #  define QT_NO_QFUTURE
 #endif
 
-/*
-    Turn off certain features for compilers that have problems parsing
-    the code.
-*/
-#if (defined(Q_CC_HPACC) && defined(QT_ARCH_PARISC)) \
-    || defined(Q_CC_MIPS) \
-    || defined(Q_CC_XLC)
-// HP aCC A.03.*, MIPSpro, and xlC cannot handle
-// the template function declarations for the QtConcurrent functions
-#  define QT_NO_QFUTURE
-#  define QT_NO_CONCURRENT
-#endif
-
-// MSVC 6.0, MSVC .NET 2002, and old versions of Sun CC can`t handle the map(), etc templates,
+// MSVC 6.0 and MSVC .NET 2002,  can`t handle the map(), etc templates,
 // but the QFuture class compiles.
-#if (defined(Q_CC_MSVC) && _MSC_VER <= 1300) || (defined (__SUNPRO_CC) && __SUNPRO_CC <= 0x590)
+#if (defined(Q_CC_MSVC) && _MSC_VER <= 1300)
 #  define QT_NO_CONCURRENT
 #endif
 
-// Mingw uses a gcc 3 version which has problems with some of the
-// map/filter overloads. So does IRIX and Solaris.
-#if (defined(Q_OS_IRIX) || defined(Q_CC_MINGW) || defined (Q_OS_SOLARIS)) && (__GNUC__ < 4)
+// gcc 3 version has problems with some of the
+// map/filter overloads.
+#if defined(Q_CC_GNU) && (__GNUC__ < 4)
 #  define QT_NO_CONCURRENT_MAP
 #  define QT_NO_CONCURRENT_FILTER
 #endif
diff --git a/src/corelib/global/qnamespace.h b/src/corelib/global/qnamespace.h
index fdd7eee..ceec078 100644
--- a/src/corelib/global/qnamespace.h
+++ b/src/corelib/global/qnamespace.h
@@ -1435,7 +1435,8 @@ public:
         ToolButtonIconOnly,
         ToolButtonTextOnly,
         ToolButtonTextBesideIcon,
-        ToolButtonTextUnderIcon
+        ToolButtonTextUnderIcon,
+        ToolButtonFollowStyle
     };
 
     enum LayoutDirection {
@@ -1589,18 +1590,6 @@ public:
     };
     Q_DECLARE_FLAGS(TouchPointStates, TouchPointState)
 
-    enum GestureType
-    {
-        UnknownGesture,
-        TapGesture,
-        DoubleTapGesture,
-        TrippleTapGesture,
-        TapAndHoldGesture,
-        PanGesture,
-        PinchGesture
-    };
-
-
     enum GestureState
     {
         NoGesture,
@@ -1609,23 +1598,6 @@ public:
         GestureFinished = 3
     };
 
-    enum DirectionType
-    {
-        NoDirection = 0,
-        LeftDownDirection = 1,
-        DownLeftDirection = LeftDownDirection,
-        DownDirection = 2,
-        RightDownDirection = 3,
-        DownRightDirection = RightDownDirection,
-        LeftDirection = 4,
-        RightDirection = 6,
-        LeftUpDirection = 7,
-        UpLeftDirection = LeftUpDirection,
-        UpDirection = 8,
-        RightUpDirection = 9,
-        UpRightDirection = RightUpDirection
-    };
-
 }
 #ifdef Q_MOC_RUN
  ;
diff --git a/src/corelib/global/qt_windows.h b/src/corelib/global/qt_windows.h
index 5df57e5..fc7d75e 100644
--- a/src/corelib/global/qt_windows.h
+++ b/src/corelib/global/qt_windows.h
@@ -53,6 +53,13 @@
 #endif
 #endif
 
+#if defined(Q_CC_MINGW)
+// mingw's windows.h does not set _WIN32_WINNT, resulting breaking compilation
+#ifndef WINVER
+#define WINVER 0x500
+#endif
+#endif
+
 #include <windows.h>
 
 #ifdef _WIN32_WCE
@@ -60,7 +67,6 @@
 #endif
 
 // already defined when compiled with WINVER >= 0x0500
-// and we only use them in Qt::WV_2000 and Qt::WV_98
 #ifndef SPI_SETMENUANIMATION
 #define SPI_SETMENUANIMATION 0x1003
 #endif
@@ -100,6 +106,9 @@
 #ifndef SPI_GETKEYBOARDCUES
 #define SPI_GETKEYBOARDCUES 0x100A
 #endif
+#ifndef SPI_GETGRADIENTCAPTIONS
+#define SPI_GETGRADIENTCAPTIONS 0x1008
+#endif
 #ifndef IDC_HAND
 #define IDC_HAND MAKEINTRESOURCE(32649)
 #endif
@@ -112,5 +121,31 @@
 #ifndef ETO_PDY
 #define ETO_PDY 0x2000
 #endif
+#ifndef COLOR_GRADIENTACTIVECAPTION
+#define COLOR_GRADIENTACTIVECAPTION 27
+#endif
+#ifndef COLOR_GRADIENTINACTIVECAPTION
+#define COLOR_GRADIENTINACTIVECAPTION 28
+#endif
+
+// already defined when compiled with WINVER >= 0x0600
+#ifndef SPI_GETFLATMENU
+#define SPI_GETFLATMENU 0x1022
+#endif
+#ifndef CS_DROPSHADOW
+#define CS_DROPSHADOW 0x00020000
+#endif
+#ifndef CLEARTYPE_QUALITY
+#define CLEARTYPE_QUALITY 5
+#endif
+
+#ifdef Q_WS_WINCE
+#ifndef LR_DEFAULTSIZE
+#define LR_DEFAULTSIZE 0
+#endif
+#ifndef LR_SHARED
+#define LR_SHARED 0
+#endif
+#endif // Q_WS_WINCE
 
 #endif // QT_WINDOWS_H
diff --git a/src/corelib/io/qabstractfileengine.cpp b/src/corelib/io/qabstractfileengine.cpp
index d2fb768..fbd838a 100644
--- a/src/corelib/io/qabstractfileengine.cpp
+++ b/src/corelib/io/qabstractfileengine.cpp
@@ -42,7 +42,7 @@
 #include "qabstractfileengine.h"
 #include "private/qabstractfileengine_p.h"
 #include "qdatetime.h"
-#include "qmutex.h"
+#include "qreadwritelock.h"
 #include "qvariant.h"
 // built-in handlers
 #include "qfsfileengine.h"
@@ -98,14 +98,14 @@ QT_BEGIN_NAMESPACE
     All application-wide handlers are stored in this list. The mutex must be
     acquired to ensure thread safety.
  */
-Q_GLOBAL_STATIC_WITH_ARGS(QMutex, fileEngineHandlerMutex, (QMutex::Recursive))
+Q_GLOBAL_STATIC_WITH_ARGS(QReadWriteLock, fileEngineHandlerMutex, (QReadWriteLock::Recursive))
 static bool qt_abstractfileenginehandlerlist_shutDown = false;
 class QAbstractFileEngineHandlerList : public QList<QAbstractFileEngineHandler *>
 {
 public:
     ~QAbstractFileEngineHandlerList()
     {
-        QMutexLocker locker(fileEngineHandlerMutex());
+        QWriteLocker locker(fileEngineHandlerMutex());
         qt_abstractfileenginehandlerlist_shutDown = true;
     }
 };
@@ -122,7 +122,7 @@ Q_GLOBAL_STATIC(QAbstractFileEngineHandlerList, fileEngineHandlers)
  */
 QAbstractFileEngineHandler::QAbstractFileEngineHandler()
 {
-    QMutexLocker locker(fileEngineHandlerMutex());
+    QWriteLocker locker(fileEngineHandlerMutex());
     fileEngineHandlers()->prepend(this);
 }
 
@@ -132,7 +132,7 @@ QAbstractFileEngineHandler::QAbstractFileEngineHandler()
  */
 QAbstractFileEngineHandler::~QAbstractFileEngineHandler()
 {
-    QMutexLocker locker(fileEngineHandlerMutex());
+    QWriteLocker locker(fileEngineHandlerMutex());
     // Remove this handler from the handler list only if the list is valid.
     if (!qt_abstractfileenginehandlerlist_shutDown)
         fileEngineHandlers()->removeAll(this);
@@ -166,12 +166,14 @@ QAbstractFileEngineHandler::~QAbstractFileEngineHandler()
 */
 QAbstractFileEngine *QAbstractFileEngine::create(const QString &fileName)
 {
-    QMutexLocker locker(fileEngineHandlerMutex());
+    {
+        QReadLocker locker(fileEngineHandlerMutex());
 
-    // check for registered handlers that can load the file
-    for (int i = 0; i < fileEngineHandlers()->size(); i++) {
-        if (QAbstractFileEngine *ret = fileEngineHandlers()->at(i)->create(fileName))
-            return ret;
+        // check for registered handlers that can load the file
+        for (int i = 0; i < fileEngineHandlers()->size(); i++) {
+            if (QAbstractFileEngine *ret = fileEngineHandlers()->at(i)->create(fileName))
+                return ret;
+        }
     }
 
 #ifdef QT_BUILD_CORE_LIB
diff --git a/src/corelib/io/qdiriterator.cpp b/src/corelib/io/qdiriterator.cpp
index 582d657..30d2558 100644
--- a/src/corelib/io/qdiriterator.cpp
+++ b/src/corelib/io/qdiriterator.cpp
@@ -106,26 +106,29 @@ public:
                         QDir::Filters filters, QDirIterator::IteratorFlags flags);
     ~QDirIteratorPrivate();
 
-    void pushSubDirectory(const QString &path, const QStringList &nameFilters,
-                          QDir::Filters filters);
     void advance();
-    bool shouldFollowDirectory(const QFileInfo &);
+
+    void pushDirectory(const QFileInfo &fileInfo);
+    void checkAndPushDirectory(const QFileInfo &);
     bool matchesFilters(const QString &fileName, const QFileInfo &fi) const;
 
-    QSet<QString> visitedLinks;
-    QAbstractFileEngine *engine;
+    QAbstractFileEngine * const engine;
+
+    const QString path;
+    const QStringList nameFilters;
+    const QDir::Filters filters;
+    const QDirIterator::IteratorFlags iteratorFlags;
+
+#ifndef QT_NO_REGEXP
+    QVector<QRegExp> nameRegExps;
+#endif
+
     QStack<QAbstractFileEngineIterator *> fileEngineIterators;
-    QString path;
-    QFileInfo nextFileInfo;
-    //This fileinfo is the current that we will return from the public API
     QFileInfo currentFileInfo;
-    QString currentFilePath;
-    QDirIterator::IteratorFlags iteratorFlags;
-    QDir::Filters filters;
-    QStringList nameFilters;
-    bool followNextDir;
-    bool first;
-    bool done;
+    QFileInfo nextFileInfo;
+
+    // Loop protection
+    QSet<QString> visitedLinks;
 
     QDirIterator *q;
 };
@@ -135,15 +138,24 @@ public:
 */
 QDirIteratorPrivate::QDirIteratorPrivate(const QString &path, const QStringList &nameFilters,
                                          QDir::Filters filters, QDirIterator::IteratorFlags flags)
-    : engine(0), path(path), nextFileInfo(path), iteratorFlags(flags), followNextDir(false), first(true), done(false)
+    : engine(QAbstractFileEngine::create(path))
+      , path(path)
+      , nameFilters(nameFilters.contains(QLatin1String("*")) ? QStringList() : nameFilters)
+      , filters(QDir::NoFilter == filters ? QDir::AllEntries : filters)
+      , iteratorFlags(flags)
 {
-    if (filters == QDir::NoFilter)
-        filters = QDir::AllEntries;
-    this->filters = filters;
-    this->nameFilters = nameFilters;
+#ifndef QT_NO_REGEXP
+    nameRegExps.reserve(nameFilters.size());
+    for (int i = 0; i < nameFilters.size(); ++i)
+        nameRegExps.append(
+            QRegExp(nameFilters.at(i),
+                    (filters & QDir::CaseSensitive) ? Qt::CaseSensitive : Qt::CaseInsensitive,
+                    QRegExp::Wildcard));
+#endif
 
-    pushSubDirectory(nextFileInfo.isSymLink() ? nextFileInfo.canonicalFilePath() : path,
-                     nameFilters, filters);
+    // Populate fields for hasNext() and next()
+    pushDirectory(QFileInfo(path));
+    advance();
 }
 
 /*!
@@ -157,20 +169,19 @@ QDirIteratorPrivate::~QDirIteratorPrivate()
 /*!
     \internal
 */
-void QDirIteratorPrivate::pushSubDirectory(const QString &path, const QStringList &nameFilters,
-                                           QDir::Filters filters)
+void QDirIteratorPrivate::pushDirectory(const QFileInfo &fileInfo)
 {
-    if (iteratorFlags & QDirIterator::FollowSymlinks) {
-        if (nextFileInfo.filePath() != path)
-            nextFileInfo.setFile(path);
-        if (nextFileInfo.isSymLink()) {
-            visitedLinks << nextFileInfo.canonicalFilePath();
-        } else {
-            visitedLinks << nextFileInfo.absoluteFilePath();
-        }
-    }
-    
-    if (engine || (engine = QAbstractFileEngine::create(this->path))) {
+    QString path = fileInfo.filePath();
+
+#ifdef Q_OS_WIN
+    if (fileInfo.isSymLink())
+        path = fileInfo.canonicalFilePath();
+#endif
+
+    if (iteratorFlags & QDirIterator::FollowSymlinks)
+        visitedLinks << fileInfo.canonicalFilePath();
+
+    if (engine) {
         engine->setFileName(path);
         QAbstractFileEngineIterator *it = engine->beginEntryList(filters, nameFilters);
         if (it) {
@@ -187,95 +198,64 @@ void QDirIteratorPrivate::pushSubDirectory(const QString &path, const QStringLis
 */
 void QDirIteratorPrivate::advance()
 {
-    // Store the current entry
-    if (!fileEngineIterators.isEmpty())
-        currentFilePath = fileEngineIterators.top()->currentFilePath();
-
-    // Advance to the next entry
-    if (followNextDir) {
-        // Start by navigating into the current directory.
-        followNextDir = false;
-
-        QAbstractFileEngineIterator *it = fileEngineIterators.top();
-
-        QString subDir = it->currentFilePath();
-#ifdef Q_OS_WIN
-        if (nextFileInfo.isSymLink())
-            subDir = nextFileInfo.canonicalFilePath();
-#endif
-        pushSubDirectory(subDir, it->nameFilters(), it->filters());
-    }
-
     while (!fileEngineIterators.isEmpty()) {
-        QAbstractFileEngineIterator *it = fileEngineIterators.top();
 
         // Find the next valid iterator that matches the filters.
-        bool foundDirectory = false;
-        while (it->hasNext()) {
+        while (fileEngineIterators.top()->hasNext()) {
+            QAbstractFileEngineIterator *it = fileEngineIterators.top();
             it->next();
+
             const QFileInfo info = it->currentFileInfo();
+            checkAndPushDirectory(it->currentFileInfo());
+
             if (matchesFilters(it->currentFileName(), info)) {
                 currentFileInfo = nextFileInfo;
                 nextFileInfo = info;
-                // Signal that we want to follow this entry.
-                followNextDir = shouldFollowDirectory(nextFileInfo);
+
                 //We found a matching entry.
                 return;
-
-            } else if (iteratorFlags & QDirIterator::Subdirectories) {
-
-                if (!shouldFollowDirectory(info))
-                    continue;
-                QString subDir = it->currentFilePath();
-#ifdef Q_OS_WIN
-                if (info.isSymLink())
-                    subDir = info.canonicalFilePath();
-#endif
-                pushSubDirectory(subDir, it->nameFilters(), it->filters());
-                
-                foundDirectory = true;
-                break;
             }
         }
-        if (!foundDirectory)
-            delete fileEngineIterators.pop();
+
+        delete fileEngineIterators.pop();
     }
+
     currentFileInfo = nextFileInfo;
-    done = true;
+    nextFileInfo = QFileInfo();
 }
 
 /*!
     \internal
  */
-bool QDirIteratorPrivate::shouldFollowDirectory(const QFileInfo &fileInfo)
+void QDirIteratorPrivate::checkAndPushDirectory(const QFileInfo &fileInfo)
 {
     // If we're doing flat iteration, we're done.
     if (!(iteratorFlags & QDirIterator::Subdirectories))
-        return false;
-    
+        return;
+
     // Never follow non-directory entries
     if (!fileInfo.isDir())
-        return false;
+        return;
 
+    // Follow symlinks only when asked
+    if (!(iteratorFlags & QDirIterator::FollowSymlinks) && fileInfo.isSymLink())
+        return;
 
     // Never follow . and ..
-    if (fileInfo.fileName() == QLatin1String(".") || fileInfo.fileName() == QLatin1String(".."))
-        return false;
+    QString fileName = fileInfo.fileName();
+    if (QLatin1String(".") == fileName || QLatin1String("..") == fileName)
+        return;
 
-      
-    // Check symlinks
-    if (fileInfo.isSymLink() && !(iteratorFlags & QDirIterator::FollowSymlinks)) {
-        // Follow symlinks only if FollowSymlinks was passed
-        return false;
-    }
+    // No hidden directories unless requested
+    if (!(filters & QDir::AllDirs) && !(filters & QDir::Hidden) && fileInfo.isHidden())
+        return;
 
     // Stop link loops
     if (visitedLinks.contains(fileInfo.canonicalFilePath()))
-        return false;
-    
-    return true;
+        return;
+
+    pushDirectory(fileInfo);
 }
-    
 
 /*!
     \internal
@@ -289,10 +269,7 @@ bool QDirIteratorPrivate::shouldFollowDirectory(const QFileInfo &fileInfo)
 */
 bool QDirIteratorPrivate::matchesFilters(const QString &fileName, const QFileInfo &fi) const
 {
-    if (fileName.isEmpty()) {
-        // invalid entry
-        return false;
-    }
+    Q_ASSERT(!fileName.isEmpty());
 
     // filter . and ..?
     const int fileNameSize = fileName.size();
@@ -303,16 +280,15 @@ bool QDirIteratorPrivate::matchesFilters(const QString &fileName, const QFileInf
         return false;
 
     // name filter
-#ifndef QT_NO_REGEXP 
-    const bool hasNameFilters = !nameFilters.isEmpty() && !(nameFilters.contains(QLatin1String("*")));
+#ifndef QT_NO_REGEXP
     // Pass all entries through name filters, except dirs if the AllDirs
-    if (hasNameFilters && !((filters & QDir::AllDirs) && fi.isDir())) {
+    if (!nameFilters.isEmpty() && !((filters & QDir::AllDirs) && fi.isDir())) {
         bool matched = false;
-        for (int i = 0; i < nameFilters.size(); ++i) {
-            QRegExp regexp(nameFilters.at(i),
-                            (filters & QDir::CaseSensitive) ? Qt::CaseSensitive : Qt::CaseInsensitive,
-                            QRegExp::Wildcard);
-            if (regexp.exactMatch(fileName)) {
+        for (QVector<QRegExp>::const_iterator iter = nameRegExps.constBegin(),
+                                              end = nameRegExps.constEnd();
+                iter != end; ++iter) {
+
+            if (iter->exactMatch(fileName)) {
                 matched = true;
                 break;
             }
@@ -333,17 +309,11 @@ bool QDirIteratorPrivate::matchesFilters(const QString &fileName, const QFileInf
                     || (!fi.exists() && fi.isSymLink())))
         return false;
 
-
-    if (!includeSystem && !dotOrDotDot && ((fi.exists() && !fi.isFile() && !fi.isDir() && !fi.isSymLink())
-                                           || (!fi.exists() && fi.isSymLink()))) {
-        return false;
-    }
-
     // skip directories
     const bool skipDirs = !(filters & (QDir::Dirs | QDir::AllDirs));
     if (skipDirs && fi.isDir()) {
-        if (!(includeHidden && !dotOrDotDot && fi.isHidden())
-              || (includeSystem && !fi.exists() && fi.isSymLink()))
+        if (!((includeHidden && !dotOrDotDot && fi.isHidden())
+              || (includeSystem && !fi.exists() && fi.isSymLink())))
             return false;
     }
 
@@ -368,7 +338,7 @@ bool QDirIteratorPrivate::matchesFilters(const QString &fileName, const QFileInf
             || (doExecutable && !fi.isExecutable()))) {
         return false;
     }
-    
+
     return true;
 }
 
@@ -410,7 +380,7 @@ QDirIterator::QDirIterator(const QDir &dir, IteratorFlags flags)
     \sa hasNext(), next(), IteratorFlags
 */
 QDirIterator::QDirIterator(const QString &path, QDir::Filters filters, IteratorFlags flags)
-    : d(new QDirIteratorPrivate(path, QStringList(QLatin1String("*")), filters, flags))
+    : d(new QDirIteratorPrivate(path, QStringList(), filters, flags))
 {
     d->q = this;
 }
@@ -428,7 +398,7 @@ QDirIterator::QDirIterator(const QString &path, QDir::Filters filters, IteratorF
     \sa hasNext(), next(), IteratorFlags
 */
 QDirIterator::QDirIterator(const QString &path, IteratorFlags flags)
-    : d(new QDirIteratorPrivate(path, QStringList(QLatin1String("*")), QDir::NoFilter, flags))
+    : d(new QDirIteratorPrivate(path, QStringList(), QDir::NoFilter, flags))
 {
     d->q = this;
 }
@@ -445,7 +415,7 @@ QDirIterator::QDirIterator(const QString &path, IteratorFlags flags)
      passed to the flags.
 
     \warning This constructor expects \c flags to be left at its default value. Use the
-             constructors that do not take the \a filters argument instead. 
+             constructors that do not take the \a filters argument instead.
 
     \sa hasNext(), next(), IteratorFlags
 */
@@ -477,8 +447,6 @@ QDirIterator::~QDirIterator()
 */
 QString QDirIterator::next()
 {
-    if (!hasNext())
-        return QString();
     d->advance();
     return filePath();
 }
@@ -491,22 +459,17 @@ QString QDirIterator::next()
 */
 bool QDirIterator::hasNext() const
 {
-    if (d->first) {
-        d->first = false;
-        d->advance();
-    }
-    return !d->done;
+    return !d->fileEngineIterators.isEmpty();
 }
 
 /*!
     Returns the file name for the current directory entry, without the path
-    prepended. If the current entry is invalid (i.e., isValid() returns
-    false), a null QString is returned.
+    prepended.
+
+    This function is convenient when iterating a single directory. When using
+    the QDirIterator::Subdirectories flag, you can use filePath() to get the
+    full path.
 
-    This function is provided for the convenience when iterating single
-    directories. For recursive iteration, you should call filePath() or
-    fileInfo() instead.
-    
     \sa filePath(), fileInfo()
 */
 QString QDirIterator::fileName() const
@@ -515,20 +478,17 @@ QString QDirIterator::fileName() const
 }
 
 /*!
-    Returns the full file path for the current directory entry. If the current
-    entry is invalid (i.e., isValid() returns false), a null QString is
-    returned.
+    Returns the full file path for the current directory entry.
 
     \sa fileInfo(), fileName()
 */
 QString QDirIterator::filePath() const
 {
-    return d->currentFilePath;
+    return d->currentFileInfo.filePath();
 }
 
 /*!
-    Returns a QFileInfo for the current directory entry. If the current entry
-    is invalid (i.e., isValid() returns false), a null QFileInfo is returned.
+    Returns a QFileInfo for the current directory entry.
 
     \sa filePath(), fileName()
 */
diff --git a/src/corelib/io/qfileinfo.cpp b/src/corelib/io/qfileinfo.cpp
index afc7c31..c568369 100644
--- a/src/corelib/io/qfileinfo.cpp
+++ b/src/corelib/io/qfileinfo.cpp
@@ -117,11 +117,7 @@ bool QFileInfoPrivate::hasAccess(Access access) const
     if (access == ExecuteAccess)
         return getFileFlags(QAbstractFileEngine::ExeUserPerm);
 
-    QT_WA( {
-        return ::_waccess((TCHAR *)QFSFileEnginePrivate::longFileName(data->fileName).utf16(), mode) == 0;
-    } , {
-        return QT_ACCESS(QFSFileEnginePrivate::win95Name(data->fileName), mode) == 0;
-    } );
+    return ::_waccess((wchar_t*)QFSFileEnginePrivate::longFileName(data->fileName).utf16(), mode) == 0;
 #endif
     return false;
 }
diff --git a/src/corelib/io/qfilesystemwatcher_dnotify.cpp b/src/corelib/io/qfilesystemwatcher_dnotify.cpp
index c68af85..6df3746 100644
--- a/src/corelib/io/qfilesystemwatcher_dnotify.cpp
+++ b/src/corelib/io/qfilesystemwatcher_dnotify.cpp
@@ -59,6 +59,8 @@
 #include <fcntl.h>
 #include <time.h>
 
+#include "private/qcore_unix_p.h"
+
 #ifdef QT_LINUXBASE
 
 /* LSB doesn't standardize these */
@@ -80,7 +82,7 @@ static void (*qfswd_old_sigio_handler)(int) = 0;
 static void (*qfswd_old_sigio_action)(int, siginfo_t *, void *) = 0;
 static void qfswd_sigio_monitor(int signum, siginfo_t *i, void *v)
 {
-    ::write(qfswd_fileChanged_pipe[1], &i->si_fd, sizeof(int));
+    qt_safe_write(qfswd_fileChanged_pipe[1], reinterpret_cast<char*>(&i->si_fd), sizeof(int));
 
     if (qfswd_old_sigio_handler && qfswd_old_sigio_handler != SIG_IGN)
         qfswd_old_sigio_handler(signum);
@@ -121,9 +123,7 @@ QDnotifySignalThread::QDnotifySignalThread()
 {
     moveToThread(this);
 
-    ::pipe(qfswd_fileChanged_pipe);
-    ::fcntl(qfswd_fileChanged_pipe[0], F_SETFL,
-            ::fcntl(qfswd_fileChanged_pipe[0], F_GETFL) | O_NONBLOCK);
+    qt_safe_pipe(qfswd_fileChanged_pipe, O_NONBLOCK);
 
     struct sigaction oldAction;
     struct sigaction action;
@@ -181,7 +181,7 @@ void QDnotifySignalThread::run()
 void QDnotifySignalThread::readFromDnotify()
 {
     int fd;
-    int readrv = ::read(qfswd_fileChanged_pipe[0], &fd,sizeof(int));
+    int readrv = qt_safe_read(qfswd_fileChanged_pipe[0], reinterpret_cast<char*>(&fd), sizeof(int));
     // Only expect EAGAIN or EINTR.  Other errors are assumed to be impossible.
     if(readrv != -1) {
         Q_ASSERT(readrv == sizeof(int));
@@ -207,9 +207,9 @@ QDnotifyFileSystemWatcherEngine::~QDnotifyFileSystemWatcherEngine()
     for(QHash<int, Directory>::ConstIterator iter = fdToDirectory.constBegin();
             iter != fdToDirectory.constEnd();
             ++iter) {
-        ::close(iter->fd);
+        qt_safe_close(iter->fd);
         if(iter->parentFd)
-            ::close(iter->parentFd);
+            qt_safe_close(iter->parentFd);
     }
 }
 
@@ -353,7 +353,7 @@ QStringList QDnotifyFileSystemWatcherEngine::removePaths(const QStringList &path
 
         if(!directory.isMonitored && directory.files.isEmpty()) {
             // No longer needed
-            ::close(directory.fd);
+            qt_safe_close(directory.fd);
             pathToFD.remove(directory.path);
             fdToDirectory.remove(fd);
         }
@@ -419,9 +419,9 @@ void QDnotifyFileSystemWatcherEngine::refresh(int fd)
     }
 
     if(!directory.isMonitored && directory.files.isEmpty()) {
-        ::close(directory.fd);
+        qt_safe_close(directory.fd);
         if(directory.parentFd) {
-            ::close(directory.parentFd);
+            qt_safe_close(directory.parentFd);
             parentToFD.remove(directory.parentFd);
         }
         fdToDirectory.erase(iter);
diff --git a/src/corelib/io/qfilesystemwatcher_inotify.cpp b/src/corelib/io/qfilesystemwatcher_inotify.cpp
index 401e545..9d08228 100644
--- a/src/corelib/io/qfilesystemwatcher_inotify.cpp
+++ b/src/corelib/io/qfilesystemwatcher_inotify.cpp
@@ -44,6 +44,8 @@
 
 #ifndef QT_NO_FILESYSTEMWATCHER
 
+#include "private/qcore_unix_p.h"
+
 #include <qdebug.h>
 #include <qfile.h>
 #include <qfileinfo.h>
@@ -62,62 +64,80 @@
 # define __NR_inotify_init      291
 # define __NR_inotify_add_watch 292
 # define __NR_inotify_rm_watch  293
+# define __NR_inotify_init1     332
 #elif defined(__x86_64__)
 # define __NR_inotify_init      253
 # define __NR_inotify_add_watch 254
 # define __NR_inotify_rm_watch  255
+# define __NR_inotify_init1     294
 #elif defined(__powerpc__) || defined(__powerpc64__)
 # define __NR_inotify_init      275
 # define __NR_inotify_add_watch 276
 # define __NR_inotify_rm_watch  277
+# define __NR_inotify_init1     318
 #elif defined (__ia64__)
 # define __NR_inotify_init      1277
 # define __NR_inotify_add_watch 1278
 # define __NR_inotify_rm_watch  1279
+# define __NR_inotify_init1     1318
 #elif defined (__s390__) || defined (__s390x__)
 # define __NR_inotify_init      284
 # define __NR_inotify_add_watch 285
 # define __NR_inotify_rm_watch  286
+# define __NR_inotify_init1     324
 #elif defined (__alpha__)
 # define __NR_inotify_init      444
 # define __NR_inotify_add_watch 445
 # define __NR_inotify_rm_watch  446
+// no inotify_init1 for the Alpha
 #elif defined (__sparc__) || defined (__sparc64__)
 # define __NR_inotify_init      151
 # define __NR_inotify_add_watch 152
 # define __NR_inotify_rm_watch  156
+# define __NR_inotify_init1     322
 #elif defined (__arm__)
 # define __NR_inotify_init      316
 # define __NR_inotify_add_watch 317
 # define __NR_inotify_rm_watch  318
+# define __NR_inotify_init1     360
 #elif defined (__sh__)
 # define __NR_inotify_init      290
 # define __NR_inotify_add_watch 291
 # define __NR_inotify_rm_watch  292
+# define __NR_inotify_init1     332
 #elif defined (__sh64__)
 # define __NR_inotify_init      318
 # define __NR_inotify_add_watch 319
 # define __NR_inotify_rm_watch  320
+# define __NR_inotify_init1     360
 #elif defined (__mips__)
 # define __NR_inotify_init      284
 # define __NR_inotify_add_watch 285
 # define __NR_inotify_rm_watch  286
+# define __NR_inotify_init1     329
 #elif defined (__hppa__)
 # define __NR_inotify_init      269
 # define __NR_inotify_add_watch 270
 # define __NR_inotify_rm_watch  271
+# define __NR_inotify_init1     314
 #elif defined (__avr32__)
 # define __NR_inotify_init	240
 # define __NR_inotify_add_watch	241
 # define __NR_inotify_rm_watch	242
+// no inotify_init1 for AVR32
 #elif defined (__mc68000__)
 # define __NR_inotify_init      284
 # define __NR_inotify_add_watch 285
 # define __NR_inotify_rm_watch  286
+# define __NR_inotify_init1     328
 #else
 # error "This architecture is not supported. Please talk to qt-bugs@trolltech.com"
 #endif
 
+#if !defined(IN_CLOEXEC) && defined(O_CLOEXEC) && defined(__NR_inotify_init1)
+# define IN_CLOEXEC              O_CLOEXEC
+#endif
+
 QT_BEGIN_NAMESPACE
 
 #ifdef QT_LINUXBASE
@@ -140,6 +160,13 @@ static inline int inotify_rm_watch(int fd, __u32 wd)
     return syscall(__NR_inotify_rm_watch, fd, wd);
 }
 
+#ifdef IN_CLOEXEC
+static inline int inotify_init1(int flags)
+{
+    return syscall(__NR_inotify_init1, flags);
+}
+#endif
+
 // the following struct and values are documented in linux/inotify.h
 extern "C" {
 
@@ -185,9 +212,16 @@ QT_BEGIN_NAMESPACE
 
 QInotifyFileSystemWatcherEngine *QInotifyFileSystemWatcherEngine::create()
 {
-    int fd = inotify_init();
-    if (fd <= 0)
-        return 0;
+    register int fd = -1;
+#ifdef IN_CLOEXEC
+    fd = inotify_init1(IN_CLOEXEC);
+#endif
+    if (fd == -1) {
+        fd = inotify_init();
+        if (fd == -1)
+            return 0;
+        ::fcntl(fd, F_SETFD, FD_CLOEXEC);
+    }
     return new QInotifyFileSystemWatcherEngine(fd);
 }
 
diff --git a/src/corelib/io/qfilesystemwatcher_kqueue.cpp b/src/corelib/io/qfilesystemwatcher_kqueue.cpp
index ed42c34..dfed6a4 100644
--- a/src/corelib/io/qfilesystemwatcher_kqueue.cpp
+++ b/src/corelib/io/qfilesystemwatcher_kqueue.cpp
@@ -43,6 +43,7 @@
 
 #include "qfilesystemwatcher.h"
 #include "qfilesystemwatcher_kqueue_p.h"
+#include "private/qcore_unix_p.h"
 
 #include <qdebug.h>
 #include <qfile.h>
@@ -124,9 +125,9 @@ QStringList QKqueueFileSystemWatcherEngine::addPaths(const QStringList &paths,
         QString path = it.next();
         int fd;
 #if defined(O_EVTONLY)
-        fd = ::open(QFile::encodeName(path), O_EVTONLY);
+        fd = qt_safe_open(QFile::encodeName(path), O_EVTONLY);
 #else
-        fd = ::open(QFile::encodeName(path), O_RDONLY);
+        fd = qt_safe_open(QFile::encodeName(path), O_RDONLY);
 #endif
         if (fd == -1) {
             perror("QKqueueFileSystemWatcherEngine::addPaths: open");
diff --git a/src/corelib/io/qfilesystemwatcher_p.h b/src/corelib/io/qfilesystemwatcher_p.h
index 850e150..83be197 100644
--- a/src/corelib/io/qfilesystemwatcher_p.h
+++ b/src/corelib/io/qfilesystemwatcher_p.h
@@ -69,13 +69,14 @@ class QFileSystemWatcherEngine : public QThread
     Q_OBJECT
 
 protected:
-    inline QFileSystemWatcherEngine()
+    inline QFileSystemWatcherEngine(bool move = true)
     {
-        moveToThread(this);
+        if (move)
+            moveToThread(this);
     }
 
 public:
-    // fills \a files and \a directires with the \a paths it could
+    // fills \a files and \a directories with the \a paths it could
     // watch, and returns a list of paths this engine could not watch
     virtual QStringList addPaths(const QStringList &paths,
                                  QStringList *files,
diff --git a/src/corelib/io/qfilesystemwatcher_win.cpp b/src/corelib/io/qfilesystemwatcher_win.cpp
index 9a3aeae..9eeef02 100644
--- a/src/corelib/io/qfilesystemwatcher_win.cpp
+++ b/src/corelib/io/qfilesystemwatcher_win.cpp
@@ -53,25 +53,268 @@
 
 QT_BEGIN_NAMESPACE
 
+void QWindowsFileSystemWatcherEngine::stop()
+{
+    foreach(QWindowsFileSystemWatcherEngineThread *thread, threads)
+        thread->stop();
+}
+
 QWindowsFileSystemWatcherEngine::QWindowsFileSystemWatcherEngine()
-    : msg(0)
+    : QFileSystemWatcherEngine(false)
 {
-    HANDLE h = QT_WA_INLINE(CreateEventW(0, false, false, 0),
-                                CreateEventA(0, false, false, 0));
-    if (h != INVALID_HANDLE_VALUE) {
-        handles.reserve(MAXIMUM_WAIT_OBJECTS);
-        handles.append(h);
-    }
 }
 
 QWindowsFileSystemWatcherEngine::~QWindowsFileSystemWatcherEngine()
 {
-    if (handles.isEmpty())
+    if (threads.isEmpty())
         return;
 
-    stop();
-    wait();
+    foreach(QWindowsFileSystemWatcherEngineThread *thread, threads) {
+        thread->stop();
+        thread->wait();
+        delete thread;
+    }
+}
+
+QStringList QWindowsFileSystemWatcherEngine::addPaths(const QStringList &paths,
+                                                       QStringList *files,
+                                                       QStringList *directories)
+{
+    // qDebug()<<"Adding"<<paths.count()<<"to existing"<<(files->count() + directories->count())<<"watchers";
+    QStringList p = paths;
+    QMutableListIterator<QString> it(p);
+    while (it.hasNext()) {
+        QString path = it.next();
+        QString normalPath = path;
+        if ((normalPath.endsWith(QLatin1Char('/')) || normalPath.endsWith(QLatin1Char('\\')))
+#ifdef Q_OS_WINCE
+            && normalPath.size() > 1)
+#else
+            )
+#endif
+        normalPath.chop(1);
+        QFileInfo fileInfo(normalPath.toLower());
+        if (!fileInfo.exists())
+            continue;
+
+        bool isDir = fileInfo.isDir();
+        if (isDir) {
+            if (directories->contains(path))
+                continue;
+        } else {
+            if (files->contains(path))
+                continue;
+        }
+
+        // qDebug()<<"Looking for a thread/handle for"<<normalPath;
+
+        const QString absolutePath = isDir ? fileInfo.absoluteFilePath() : fileInfo.absolutePath();
+        const uint flags = isDir
+                           ? (FILE_NOTIFY_CHANGE_DIR_NAME
+                              | FILE_NOTIFY_CHANGE_FILE_NAME)
+                           : (FILE_NOTIFY_CHANGE_DIR_NAME
+                              | FILE_NOTIFY_CHANGE_FILE_NAME
+                              | FILE_NOTIFY_CHANGE_ATTRIBUTES
+                              | FILE_NOTIFY_CHANGE_SIZE
+                              | FILE_NOTIFY_CHANGE_LAST_WRITE
+                              | FILE_NOTIFY_CHANGE_SECURITY);
+
+        QWindowsFileSystemWatcherEngine::PathInfo pathInfo;
+        pathInfo.absolutePath = absolutePath;
+        pathInfo.isDir = isDir;
+        pathInfo.path = path;
+        pathInfo = fileInfo;
+
+        // Look for a thread
+        QWindowsFileSystemWatcherEngineThread *thread = 0;
+        QWindowsFileSystemWatcherEngine::Handle handle;
+        QList<QWindowsFileSystemWatcherEngineThread *>::const_iterator jt, end;
+        end = threads.constEnd();
+        for(jt = threads.constBegin(); jt != end; ++jt) {
+            thread = *jt;
+            QMutexLocker locker(&(thread->mutex));
+
+            handle = thread->handleForDir.value(absolutePath);
+            if (handle.handle != INVALID_HANDLE_VALUE && handle.flags == flags) {
+                // found a thread now insert...
+                // qDebug()<<"  Found a thread"<<thread;
+
+                QHash<QString, QWindowsFileSystemWatcherEngine::PathInfo> &h
+                        = thread->pathInfoForHandle[handle.handle];
+                if (!h.contains(fileInfo.absoluteFilePath())) {
+                    thread->pathInfoForHandle[handle.handle].insert(fileInfo.absoluteFilePath(), pathInfo);
+                    if (isDir)
+                        directories->append(path);
+                    else
+                        files->append(path);
+                }
+                it.remove();
+                thread->wakeup();
+                break;
+            }
+        }
+
+        // no thread found, first create a handle
+        if (handle.handle == INVALID_HANDLE_VALUE || handle.flags != flags) {
+            // qDebug()<<"  No thread found";
+            // Volume and folder paths need a trailing slash for proper notification
+            // (e.g. "c:" -> "c:/").
+            const QString effectiveAbsolutePath =
+                    isDir ? (absolutePath + QLatin1Char('/')) : absolutePath;
+
+            handle.handle = FindFirstChangeNotification((wchar_t*) QDir::toNativeSeparators(effectiveAbsolutePath).utf16(), false, flags);
+            handle.flags = flags;
+            if (handle.handle == INVALID_HANDLE_VALUE)
+                continue;
+
+            // now look for a thread to insert
+            bool found = false;
+            foreach(QWindowsFileSystemWatcherEngineThread *thread, threads) {
+                QMutexLocker(&(thread->mutex));
+                if (thread->handles.count() < MAXIMUM_WAIT_OBJECTS) {
+                    // qDebug() << "  Added handle" << handle.handle << "for" << absolutePath << "to watch" << fileInfo.absoluteFilePath();
+                    // qDebug()<< "  to existing thread"<<thread;
+                    thread->handles.append(handle.handle);
+                    thread->handleForDir.insert(absolutePath, handle);
+
+                    thread->pathInfoForHandle[handle.handle].insert(fileInfo.absoluteFilePath(), pathInfo);
+                    if (isDir)
+                        directories->append(path);
+                    else
+                        files->append(path);
+
+                    it.remove();
+                    found = true;
+                    thread->wakeup();
+                    break;
+                }
+            }
+            if (!found) {
+                QWindowsFileSystemWatcherEngineThread *thread = new QWindowsFileSystemWatcherEngineThread();
+                //qDebug()<<"  ###Creating new thread"<<thread<<"("<<(threads.count()+1)<<"threads)";
+                thread->handles.append(handle.handle);
+                thread->handleForDir.insert(absolutePath, handle);
+
+                thread->pathInfoForHandle[handle.handle].insert(fileInfo.absoluteFilePath(), pathInfo);
+                if (isDir)
+                    directories->append(path);
+                else
+                    files->append(path);
+
+                connect(thread, SIGNAL(fileChanged(const QString &, bool)),
+                        this, SIGNAL(fileChanged(const QString &, bool)));
+                connect(thread, SIGNAL(directoryChanged(const QString &, bool)),
+                        this, SIGNAL(directoryChanged(const QString &, bool)));
+                
+                thread->msg = '@';
+                thread->start();
+                threads.append(thread);
+                it.remove();
+            }
+        }
+    }
+    return p;
+}
+
+QStringList QWindowsFileSystemWatcherEngine::removePaths(const QStringList &paths,
+                                                          QStringList *files,
+                                                          QStringList *directories)
+{
+    // qDebug()<<"removePaths"<<paths;
+    QStringList p = paths;
+    QMutableListIterator<QString> it(p);
+    while (it.hasNext()) {
+        QString path = it.next();
+        QString normalPath = path;
+        if (normalPath.endsWith(QLatin1Char('/')) || normalPath.endsWith(QLatin1Char('\\')))
+            normalPath.chop(1);
+        QFileInfo fileInfo(normalPath.toLower());
+        // qDebug()<<"removing"<<normalPath;
+        QString absolutePath = fileInfo.absoluteFilePath();
+        QList<QWindowsFileSystemWatcherEngineThread *>::iterator jt, end;
+        end = threads.end();
+        for(jt = threads.begin(); jt!= end; ++jt) {
+            QWindowsFileSystemWatcherEngineThread *thread = *jt;
+            if (*jt == 0)
+                continue;
+
+            QMutexLocker locker(&(thread->mutex));
+
+            QWindowsFileSystemWatcherEngine::Handle handle = thread->handleForDir.value(absolutePath);
+            if (handle.handle == INVALID_HANDLE_VALUE) {
+                // perhaps path is a file?
+                absolutePath = fileInfo.absolutePath();
+                handle = thread->handleForDir.value(absolutePath);
+            }
+            if (handle.handle != INVALID_HANDLE_VALUE) {
+                QHash<QString, QWindowsFileSystemWatcherEngine::PathInfo> &h =
+                        thread->pathInfoForHandle[handle.handle];
+                if (h.remove(fileInfo.absoluteFilePath())) {
+                    // ###
+                    files->removeAll(path);
+                    directories->removeAll(path);
+
+                    if (h.isEmpty()) {
+                        // qDebug() << "Closing handle" << handle.handle;
+                        FindCloseChangeNotification(handle.handle);    // This one might generate a notification
+
+                        int indexOfHandle = thread->handles.indexOf(handle.handle);
+                        Q_ASSERT(indexOfHandle != -1);
+                        thread->handles.remove(indexOfHandle);
+
+                        thread->handleForDir.remove(absolutePath);
+                        // h is now invalid
+
+                        it.remove();
+
+                        if (thread->handleForDir.isEmpty()) {
+                            // qDebug()<<"Stopping thread "<<thread;
+                            locker.unlock();
+                            thread->stop();
+                            thread->wait();
+                            locker.relock();
+                            // We can't delete the thread until the mutex locker is
+                            // out of scope
+                        }
+                    }
+                }
+                // Found the file, go to next one
+                break;
+            }
+        }
+    }
+
+    // Remove all threads that we stopped
+    QList<QWindowsFileSystemWatcherEngineThread *>::iterator jt, end;
+    end = threads.end();
+    for(jt = threads.begin(); jt != end; ++jt) {
+        if (!(*jt)->isRunning()) {
+            delete *jt;
+            *jt = 0;
+        }
+    }
+
+    threads.removeAll(0);
+    return p;
+}
+
+///////////
+// QWindowsFileSystemWatcherEngineThread
+///////////
 
+QWindowsFileSystemWatcherEngineThread::QWindowsFileSystemWatcherEngineThread()
+        : msg(0)
+{
+    if (HANDLE h = CreateEvent(0, false, false, 0)) {
+        handles.reserve(MAXIMUM_WAIT_OBJECTS);
+        handles.append(h);
+    }
+    moveToThread(this);
+}
+
+
+QWindowsFileSystemWatcherEngineThread::~QWindowsFileSystemWatcherEngineThread()
+{
     CloseHandle(handles.at(0));
     handles[0] = INVALID_HANDLE_VALUE;
 
@@ -82,13 +325,13 @@ QWindowsFileSystemWatcherEngine::~QWindowsFileSystemWatcherEngine()
     }
 }
 
-void QWindowsFileSystemWatcherEngine::run()
+void QWindowsFileSystemWatcherEngineThread::run()
 {
     QMutexLocker locker(&mutex);
     forever {
         QVector<HANDLE> handlesCopy = handles;
         locker.unlock();
-        // qDebug() << "QWindowsFileSystemWatcherEngine: waiting on" << handlesCopy.count() << "handles";
+        // qDebug() << "QWindowsFileSystemWatcherThread"<<this<<"waiting on" << handlesCopy.count() << "handles";
         DWORD r = WaitForMultipleObjects(handlesCopy.count(), handlesCopy.constData(), false, INFINITE);
         locker.relock();
         do {
@@ -96,7 +339,7 @@ void QWindowsFileSystemWatcherEngine::run()
                 int m = msg;
                 msg = 0;
                 if (m == 'q') {
-                    // qDebug() << "thread told to quit";
+                    // qDebug() << "thread"<<this<<"told to quit";
                     return;
                 }
                 if (m != '@')  {
@@ -111,15 +354,15 @@ void QWindowsFileSystemWatcherEngine::run()
                 // When removing a path, FindCloseChangeNotification might actually fire a notification
                 // for some reason, so we must check if the handle exist in the handles vector
                 if (handles.contains(handle)) {
-                    // qDebug("Acknowledged handle: %d, %p", at, handle);
+                    // qDebug()<<"thread"<<this<<"Acknowledged handle:"<<at<<handle;
                     if (!FindNextChangeNotification(handle)) {
-                        qErrnoWarning("QFileSystemWatcher: FindNextChangeNotification failed");
+                        qErrnoWarning("QFileSystemWatcher: FindNextChangeNotification failed!!");
                     }
 
-                    QHash<QString, PathInfo> &h = pathInfoForHandle[handle];
-                    QMutableHashIterator<QString, PathInfo> it(h);
+                    QHash<QString, QWindowsFileSystemWatcherEngine::PathInfo> &h = pathInfoForHandle[handle];
+                    QMutableHashIterator<QString, QWindowsFileSystemWatcherEngine::PathInfo> it(h);
                     while (it.hasNext()) {
-                        QHash<QString, PathInfo>::iterator x = it.next();
+                        QHash<QString, QWindowsFileSystemWatcherEngine::PathInfo>::iterator x = it.next();
                         QString absolutePath = x.value().absolutePath;
                         QFileInfo fileInfo(x.value().path);
                         // qDebug() << "checking" << x.key();
@@ -164,166 +407,14 @@ void QWindowsFileSystemWatcherEngine::run()
     }
 }
 
-QStringList QWindowsFileSystemWatcherEngine::addPaths(const QStringList &paths,
-                                                      QStringList *files,
-                                                      QStringList *directories)
-{
-    if (handles.isEmpty() || handles.count() == MAXIMUM_WAIT_OBJECTS)
-        return paths;
-
-    QMutexLocker locker(&mutex);
-
-    QStringList p = paths;
-    QMutableListIterator<QString> it(p);
-    while (it.hasNext()) {
-        QString path = it.next();
-        QString normalPath = path;
-        if ((normalPath.endsWith(QLatin1Char('/')) || normalPath.endsWith(QLatin1Char('\\')))
-#ifdef Q_OS_WINCE
-            && normalPath.size() > 1)
-#else
-            )
-#endif
-            normalPath.chop(1);
-        QFileInfo fileInfo(normalPath.toLower());
-        if (!fileInfo.exists())
-            continue;
-
-        bool isDir = fileInfo.isDir();
-        if (isDir) {
-            if (directories->contains(path))
-                continue;
-        } else {
-            if (files->contains(path))
-                continue;
-        }
-
-        const QString absolutePath = isDir ? fileInfo.absoluteFilePath() : fileInfo.absolutePath();
-        const uint flags = isDir
-            ? (FILE_NOTIFY_CHANGE_DIR_NAME
-               | FILE_NOTIFY_CHANGE_FILE_NAME)
-            : (FILE_NOTIFY_CHANGE_DIR_NAME
-               | FILE_NOTIFY_CHANGE_FILE_NAME
-               | FILE_NOTIFY_CHANGE_ATTRIBUTES
-               | FILE_NOTIFY_CHANGE_SIZE
-               | FILE_NOTIFY_CHANGE_LAST_WRITE
-               | FILE_NOTIFY_CHANGE_SECURITY);
-
-        Handle handle = handleForDir.value(absolutePath);
-        if (handle.handle == INVALID_HANDLE_VALUE || handle.flags != flags) {
-            // Volume and folder paths need a trailing slash for proper notification
-            // (e.g. "c:" -> "c:/").
-            const QString effectiveAbsolutePath =
-                isDir ? (absolutePath + QLatin1Char('/')) : absolutePath;
-
-            QT_WA({
-                    handle.handle = FindFirstChangeNotificationW((TCHAR *) QDir::toNativeSeparators(effectiveAbsolutePath).utf16(),
-                                                      false, flags);
-            },{
-                    handle.handle = FindFirstChangeNotificationA(QDir::toNativeSeparators(effectiveAbsolutePath).toLocal8Bit(),
-                                                      false, flags);
-            })
-            handle.flags = flags;
-            if (handle.handle == INVALID_HANDLE_VALUE)
-                continue;
-            // qDebug() << "Added handle" << handle << "for" << absolutePath << "to watch" << fileInfo.absoluteFilePath();
-            handles.append(handle.handle);
-            handleForDir.insert(absolutePath, handle);
-        }
-
-        PathInfo pathInfo;
-        pathInfo.absolutePath = absolutePath;
-        pathInfo.isDir = isDir;
-        pathInfo.path = path;
-        pathInfo = fileInfo;
-        QHash<QString, PathInfo> &h = pathInfoForHandle[handle.handle];
-        if (!h.contains(fileInfo.absoluteFilePath())) {
-            pathInfoForHandle[handle.handle].insert(fileInfo.absoluteFilePath(), pathInfo);
-            if (isDir)
-                directories->append(path);
-            else
-                files->append(path);
-        }
-
-        it.remove();
-    }
-
-    if (!isRunning()) {
-        msg = '@';
-        start();
-    } else {
-        wakeup();
-    }
-
-    return p;
-}
-
-QStringList QWindowsFileSystemWatcherEngine::removePaths(const QStringList &paths,
-                                                         QStringList *files,
-                                                         QStringList *directories)
-{
-    QMutexLocker locker(&mutex);
-
-    QStringList p = paths;
-    QMutableListIterator<QString> it(p);
-    while (it.hasNext()) {
-        QString path = it.next();
-        QString normalPath = path;
-        if (normalPath.endsWith(QLatin1Char('/')) || normalPath.endsWith(QLatin1Char('\\')))
-            normalPath.chop(1);
-        QFileInfo fileInfo(normalPath.toLower());
-
-        QString absolutePath = fileInfo.absoluteFilePath();
-        Handle handle = handleForDir.value(absolutePath);
-        if (handle.handle == INVALID_HANDLE_VALUE) {
-            // perhaps path is a file?
-            absolutePath = fileInfo.absolutePath();
-            handle = handleForDir.value(absolutePath);
-            if (handle.handle == INVALID_HANDLE_VALUE)
-                continue;
-        }
-
-        QHash<QString, PathInfo> &h = pathInfoForHandle[handle.handle];
-        if (h.remove(fileInfo.absoluteFilePath())) {
-            // ###
-            files->removeAll(path);
-            directories->removeAll(path);
-
-            if (h.isEmpty()) {
-                // qDebug() << "Closing handle" << handle;
-                FindCloseChangeNotification(handle.handle);    // This one might generate a notification
-
-                int indexOfHandle = handles.indexOf(handle.handle);
-                Q_ASSERT(indexOfHandle != -1);
-                handles.remove(indexOfHandle);
-
-                handleForDir.remove(absolutePath);
-                // h is now invalid
-
-                it.remove();
-            }
-        }
-    }
-
-    if (handleForDir.isEmpty()) {
-        stop();
-        locker.unlock();
-        wait();
-        locker.relock();
-    } else {
-        wakeup();
-    }
-
-    return p;
-}
 
-void QWindowsFileSystemWatcherEngine::stop()
+void QWindowsFileSystemWatcherEngineThread::stop()
 {
     msg = 'q';
     SetEvent(handles.at(0));
 }
 
-void QWindowsFileSystemWatcherEngine::wakeup()
+void QWindowsFileSystemWatcherEngineThread::wakeup()
 {
     msg = '@';
     SetEvent(handles.at(0));
diff --git a/src/corelib/io/qfilesystemwatcher_win_p.h b/src/corelib/io/qfilesystemwatcher_win_p.h
index d0eecfc..405d255 100644
--- a/src/corelib/io/qfilesystemwatcher_win_p.h
+++ b/src/corelib/io/qfilesystemwatcher_win_p.h
@@ -57,7 +57,7 @@
 
 #ifndef QT_NO_FILESYSTEMWATCHER
 
-#include <windows.h>
+#include <qt_windows.h>
 
 #include <QtCore/qdatetime.h>
 #include <QtCore/qfile.h>
@@ -68,27 +68,24 @@
 
 QT_BEGIN_NAMESPACE
 
+class QWindowsFileSystemWatcherEngineThread;
+
+// Even though QWindowsFileSystemWatcherEngine is derived of QThread
+// via QFileSystemWatcher, it does not start a thread.
+// Instead QWindowsFileSystemWatcher creates QWindowsFileSystemWatcherEngineThreads
+// to do the actually watching.
 class QWindowsFileSystemWatcherEngine : public QFileSystemWatcherEngine
 {
     Q_OBJECT
-
 public:
     QWindowsFileSystemWatcherEngine();
     ~QWindowsFileSystemWatcherEngine();
 
-    void run();
-
     QStringList addPaths(const QStringList &paths, QStringList *files, QStringList *directories);
     QStringList removePaths(const QStringList &paths, QStringList *files, QStringList *directories);
 
     void stop();
 
-private:
-    void wakeup();
-
-    QMutex mutex;
-    QVector<HANDLE> handles;
-    int msg;
 
     class Handle
     {
@@ -97,13 +94,12 @@ private:
         uint flags;
 
         Handle()
-            : handle(INVALID_HANDLE_VALUE), flags(0u)
+                : handle(INVALID_HANDLE_VALUE), flags(0u)
         { }
         Handle(const Handle &other)
-            : handle(other.handle), flags(other.flags)
+                : handle(other.handle), flags(other.flags)
         { }
     };
-    QHash<QString, Handle> handleForDir;
 
     class PathInfo {
     public:
@@ -118,7 +114,7 @@ private:
         QDateTime lastModified;
 
         PathInfo &operator=(const QFileInfo &fileInfo)
-        {
+                           {
             ownerId = fileInfo.ownerId();
             groupId = fileInfo.groupId();
             permissions = fileInfo.permissions();
@@ -134,8 +130,35 @@ private:
                     || lastModified != fileInfo.lastModified());
         }
     };
-    QHash<HANDLE, QHash<QString, PathInfo> > pathInfoForHandle;
+private:
+    QList<QWindowsFileSystemWatcherEngineThread *> threads;
+
+};
+
+class QWindowsFileSystemWatcherEngineThread : public QThread
+{
+    Q_OBJECT
+
+public:
+    QWindowsFileSystemWatcherEngineThread();
+    ~QWindowsFileSystemWatcherEngineThread();
+    void run();
+    void stop();
+    void wakeup();
+
+    QMutex mutex;
+    QVector<HANDLE> handles;
+    int msg;
+
+    QHash<QString, QWindowsFileSystemWatcherEngine::Handle> handleForDir;
+
+    QHash<HANDLE, QHash<QString, QWindowsFileSystemWatcherEngine::PathInfo> > pathInfoForHandle;
+
+Q_SIGNALS:
+    void fileChanged(const QString &path, bool removed);
+    void directoryChanged(const QString &path, bool removed);
 };
+
 #endif // QT_NO_FILESYSTEMWATCHER
 
 QT_END_NAMESPACE
diff --git a/src/corelib/io/qfsfileengine.cpp b/src/corelib/io/qfsfileengine.cpp
index e32b818..3a43ec7 100644
--- a/src/corelib/io/qfsfileengine.cpp
+++ b/src/corelib/io/qfsfileengine.cpp
@@ -44,12 +44,16 @@
 #include "qdatetime.h"
 #include "qdiriterator.h"
 #include "qset.h"
+#include <QtCore/qdebug.h>
 
 #ifndef QT_NO_FSFILEENGINE
 
 #if !defined(Q_OS_WINCE)
 #include <errno.h>
 #endif
+#if defined(Q_OS_UNIX)
+#include "private/qcore_unix_p.h"
+#endif
 #include <stdio.h>
 
 QT_BEGIN_NAMESPACE
@@ -568,7 +572,7 @@ bool QFSFileEnginePrivate::seekFdFh(qint64 pos)
     } else {
         // Unbuffered stdio mode.
         if (QT_LSEEK(fd, pos, SEEK_SET) == -1) {
-            qWarning("QFile::at: Cannot set file position %lld", pos);
+            qWarning() << "QFile::at: Cannot set file position" << pos;
             q->setError(QFile::PositionError, qt_error_string(errno));
             return false;
         }
diff --git a/src/corelib/io/qfsfileengine_iterator_win.cpp b/src/corelib/io/qfsfileengine_iterator_win.cpp
index 2336542..dd4ddf3 100644
--- a/src/corelib/io/qfsfileengine_iterator_win.cpp
+++ b/src/corelib/io/qfsfileengine_iterator_win.cpp
@@ -79,11 +79,7 @@ void QFSFileEngineIteratorPlatformSpecificData::saveCurrentFileName()
         it->currentEntry = uncShares.at(uncShareIndex - 1);
     } else {
         // Local directory
-        QT_WA({
-            it->currentEntry = QString::fromUtf16((unsigned short *)findData.cFileName);
-        } , {
-            it->currentEntry = QString::fromLocal8Bit((const char *)findData.cFileName);
-        });
+        it->currentEntry = QString::fromWCharArray(findData.cFileName);
     }
 }
 
@@ -97,17 +93,10 @@ void QFSFileEngineIterator::advance()
     if (platform->uncFallback) {
         ++platform->uncShareIndex;
     } else if (platform->findFileHandle != INVALID_HANDLE_VALUE) {
-        QT_WA({
-            if (!FindNextFile(platform->findFileHandle, &platform->findData)) {
-                platform->done = true;        
-                FindClose(platform->findFileHandle);
-            }
-        } , {
-            if (!FindNextFileA(platform->findFileHandle, (WIN32_FIND_DATAA *)&platform->findData)) {
-                platform->done = true;
-                FindClose(platform->findFileHandle);
-            }
-        });
+        if (!FindNextFile(platform->findFileHandle, &platform->findData)) {
+            platform->done = true;
+            FindClose(platform->findFileHandle);
+        }
     }
 }
 
@@ -141,15 +130,8 @@ bool QFSFileEngineIterator::hasNext() const
             path.append(QLatin1Char('/'));
         path.append(QLatin1String("*.*"));
 
-        QT_WA({
-            QString fileName = QFSFileEnginePrivate::longFileName(path);
-            platform->findFileHandle = FindFirstFileW((TCHAR *)fileName.utf16(),
-                                                      &platform->findData);
-        }, {
-            // Cast is safe, since char is at end of WIN32_FIND_DATA
-            platform->findFileHandle = FindFirstFileA(QFSFileEnginePrivate::win95Name(path),
-                                                      (WIN32_FIND_DATAA*)&platform->findData);
-        });
+        QString fileName = QFSFileEnginePrivate::longFileName(path);
+        platform->findFileHandle = FindFirstFile((const wchar_t *)fileName.utf16(), &platform->findData);
 
         if (platform->findFileHandle == INVALID_HANDLE_VALUE) {
             if (path.startsWith(QLatin1String("//"))) {
diff --git a/src/corelib/io/qfsfileengine_p.h b/src/corelib/io/qfsfileengine_p.h
index 5aef229..864599f 100644
--- a/src/corelib/io/qfsfileengine_p.h
+++ b/src/corelib/io/qfsfileengine_p.h
@@ -72,7 +72,6 @@ class QFSFileEnginePrivate : public QAbstractFileEnginePrivate
 
 public:
 #ifdef Q_WS_WIN
-    static QByteArray win95Name(const QString &path);
     static QString longFileName(const QString &path);
 #endif
     static QString canonicalized(const QString &path);
@@ -151,8 +150,7 @@ public:
 
 #if defined(Q_OS_WIN32) || defined(Q_OS_WINCE)
     static void resolveLibs();
-    static bool resolveUNCLibs_NT();
-    static bool resolveUNCLibs_9x();
+    static bool resolveUNCLibs();
     static bool uncListSharesOnServer(const QString &server, QStringList *list);
 #endif
 
diff --git a/src/corelib/io/qfsfileengine_unix.cpp b/src/corelib/io/qfsfileengine_unix.cpp
index 84394fe..6a0e7ad 100644
--- a/src/corelib/io/qfsfileengine_unix.cpp
+++ b/src/corelib/io/qfsfileengine_unix.cpp
@@ -42,6 +42,7 @@
 #include "qplatformdefs.h"
 #include "qabstractfileengine.h"
 #include "private/qfsfileengine_p.h"
+#include "private/qcore_unix_p.h"
 
 #ifndef QT_NO_FSFILEENGINE
 
@@ -110,6 +111,12 @@ static QByteArray openModeToFopenMode(QIODevice::OpenMode flags, const QString &
         if (flags & QIODevice::ReadOnly)
             mode += '+';
     }
+
+#if defined(__GLIBC__) && (__GLIBC__ * 0x100 + __GLIBC_MINOR__) >= 0x0207
+    // must be glibc >= 2.7
+    mode += 'e';
+#endif
+
     return mode;
 }
 
@@ -138,12 +145,6 @@ static int openModeToOpenFlags(QIODevice::OpenMode mode)
             oflags |= QT_OPEN_TRUNC;
     }
 
-#ifdef O_CLOEXEC
-    // supported on Linux >= 2.6.23; avoids one extra system call
-    // and avoids a race condition: if another thread forks, we could
-    // end up leaking a file descriptor...
-    oflags |= O_CLOEXEC;
-#endif
     return oflags;
 }
 
@@ -197,11 +198,6 @@ bool QFSFileEnginePrivate::nativeOpen(QIODevice::OpenMode openMode)
             }
         }
 
-#ifndef O_CLOEXEC
-        // not needed on Linux >= 2.6.23
-        setCloseOnExec(fd);     // ignore failure
-#endif
-
         // Seek to the end when in Append mode.
         if (flags & QFile::Append) {
             int ret;
@@ -521,7 +517,7 @@ bool QFSFileEngine::caseSensitive() const
 bool QFSFileEngine::setCurrentPath(const QString &path)
 {
     int r;
-    r = ::chdir(QFile::encodeName(path));
+    r = QT_CHDIR(QFile::encodeName(path));
     return r >= 0;
 }
 
diff --git a/src/corelib/io/qfsfileengine_win.cpp b/src/corelib/io/qfsfileengine_win.cpp
index 3b2bc60..27f4aef 100644
--- a/src/corelib/io/qfsfileengine_win.cpp
+++ b/src/corelib/io/qfsfileengine_win.cpp
@@ -109,9 +109,9 @@ static QString qfsPrivateCurrentDir = QLatin1String("");
 QT_BEGIN_INCLUDE_NAMESPACE
 typedef DWORD (WINAPI *PtrGetNamedSecurityInfoW)(LPWSTR, SE_OBJECT_TYPE, SECURITY_INFORMATION, PSID*, PSID*, PACL*, PACL*, PSECURITY_DESCRIPTOR*);
 static PtrGetNamedSecurityInfoW ptrGetNamedSecurityInfoW = 0;
-typedef DECLSPEC_IMPORT BOOL (WINAPI *PtrLookupAccountSidW)(LPCWSTR, PSID, LPWSTR, LPDWORD, LPWSTR, LPDWORD, PSID_NAME_USE);
+typedef BOOL (WINAPI *PtrLookupAccountSidW)(LPCWSTR, PSID, LPWSTR, LPDWORD, LPWSTR, LPDWORD, PSID_NAME_USE);
 static PtrLookupAccountSidW ptrLookupAccountSidW = 0;
-typedef DECLSPEC_IMPORT BOOL (WINAPI *PtrAllocateAndInitializeSid)(PSID_IDENTIFIER_AUTHORITY, BYTE, DWORD, DWORD, DWORD, DWORD, DWORD, DWORD, DWORD, DWORD, PSID*);
+typedef BOOL (WINAPI *PtrAllocateAndInitializeSid)(PSID_IDENTIFIER_AUTHORITY, BYTE, DWORD, DWORD, DWORD, DWORD, DWORD, DWORD, DWORD, DWORD, PSID*);
 static PtrAllocateAndInitializeSid ptrAllocateAndInitializeSid = 0;
 typedef VOID (WINAPI *PtrBuildTrusteeWithSidW)(PTRUSTEE_W, PSID);
 static PtrBuildTrusteeWithSidW ptrBuildTrusteeWithSidW = 0;
@@ -119,7 +119,7 @@ typedef VOID (WINAPI *PtrBuildTrusteeWithNameW)(PTRUSTEE_W, unsigned short*);
 static PtrBuildTrusteeWithNameW ptrBuildTrusteeWithNameW = 0;
 typedef DWORD (WINAPI *PtrGetEffectiveRightsFromAclW)(PACL, PTRUSTEE_W, OUT PACCESS_MASK);
 static PtrGetEffectiveRightsFromAclW ptrGetEffectiveRightsFromAclW = 0;
-typedef DECLSPEC_IMPORT PVOID (WINAPI *PtrFreeSid)(PSID);
+typedef PVOID (WINAPI *PtrFreeSid)(PSID);
 static PtrFreeSid ptrFreeSid = 0;
 static TRUSTEE_W currentUserTrusteeW;
 
@@ -152,66 +152,64 @@ void QFSFileEnginePrivate::resolveLibs()
 
         triedResolve = true;
 #if !defined(Q_OS_WINCE)
-        if(QSysInfo::WindowsVersion & QSysInfo::WV_NT_based) {
-            HINSTANCE advapiHnd = LoadLibraryW(L"advapi32");
-            if (advapiHnd) {
-                ptrGetNamedSecurityInfoW = (PtrGetNamedSecurityInfoW)GetProcAddress(advapiHnd, "GetNamedSecurityInfoW");
-                ptrLookupAccountSidW = (PtrLookupAccountSidW)GetProcAddress(advapiHnd, "LookupAccountSidW");
-                ptrAllocateAndInitializeSid = (PtrAllocateAndInitializeSid)GetProcAddress(advapiHnd, "AllocateAndInitializeSid");
-                ptrBuildTrusteeWithSidW = (PtrBuildTrusteeWithSidW)GetProcAddress(advapiHnd, "BuildTrusteeWithSidW");
-                ptrBuildTrusteeWithNameW = (PtrBuildTrusteeWithNameW)GetProcAddress(advapiHnd, "BuildTrusteeWithNameW");
-                ptrGetEffectiveRightsFromAclW = (PtrGetEffectiveRightsFromAclW)GetProcAddress(advapiHnd, "GetEffectiveRightsFromAclW");
-                ptrFreeSid = (PtrFreeSid)GetProcAddress(advapiHnd, "FreeSid");
-            }
-            if (ptrBuildTrusteeWithNameW) {
-                HINSTANCE versionHnd = LoadLibraryW(L"version");
-                if (versionHnd) {
-                    typedef DWORD (WINAPI *PtrGetFileVersionInfoSizeW)(LPWSTR lptstrFilename,LPDWORD lpdwHandle);
-                    PtrGetFileVersionInfoSizeW ptrGetFileVersionInfoSizeW = (PtrGetFileVersionInfoSizeW)GetProcAddress(versionHnd, "GetFileVersionInfoSizeW");
-                    typedef BOOL (WINAPI *PtrGetFileVersionInfoW)(LPWSTR lptstrFilename,DWORD dwHandle,DWORD dwLen,LPVOID lpData);
-                    PtrGetFileVersionInfoW ptrGetFileVersionInfoW = (PtrGetFileVersionInfoW)GetProcAddress(versionHnd, "GetFileVersionInfoW");
-                    typedef BOOL (WINAPI *PtrVerQueryValueW)(const LPVOID pBlock,LPWSTR lpSubBlock,LPVOID *lplpBuffer,PUINT puLen);
-                    PtrVerQueryValueW ptrVerQueryValueW = (PtrVerQueryValueW)GetProcAddress(versionHnd, "VerQueryValueW");
-                    if(ptrGetFileVersionInfoSizeW && ptrGetFileVersionInfoW && ptrVerQueryValueW) {
-                        DWORD fakeHandle;
-                        DWORD versionSize = ptrGetFileVersionInfoSizeW(L"secur32.dll", &fakeHandle);
-                        if(versionSize) {
-                            LPVOID versionData;
-                            versionData = malloc(versionSize);
-                            if(ptrGetFileVersionInfoW(L"secur32.dll", 0, versionSize, versionData)) {
-                                UINT puLen;
-                                VS_FIXEDFILEINFO *pLocalInfo;
-                                if(ptrVerQueryValueW(versionData, L"\\", (void**)&pLocalInfo, &puLen)) {
-                                    WORD wVer1, wVer2, wVer3, wVer4;
-                                    wVer1 = HIWORD(pLocalInfo->dwFileVersionMS);
-                                    wVer2 = LOWORD(pLocalInfo->dwFileVersionMS);
-                                    wVer3 = HIWORD(pLocalInfo->dwFileVersionLS);
-                                    wVer4 = LOWORD(pLocalInfo->dwFileVersionLS);
-                                    // It will not work with secur32.dll version 5.0.2195.2862
-                                    if(!(wVer1 == 5 && wVer2 == 0 && wVer3 == 2195 && (wVer4 == 2862 || wVer4 == 4587))) {
-                                        HINSTANCE userHnd = LoadLibraryW(L"secur32");
-                                        if (userHnd) {
-                                            typedef BOOL (WINAPI *PtrGetUserNameExW)(EXTENDED_NAME_FORMAT nameFormat, ushort* lpBuffer, LPDWORD nSize);
-                                            PtrGetUserNameExW ptrGetUserNameExW = (PtrGetUserNameExW)GetProcAddress(userHnd, "GetUserNameExW");
-                                            if(ptrGetUserNameExW) {
-                                                static TCHAR buffer[258];
-                                                DWORD bufferSize = 257;
-                                                ptrGetUserNameExW(NameSamCompatible, (ushort*)buffer, &bufferSize);
-                                                ptrBuildTrusteeWithNameW(&currentUserTrusteeW, (ushort*)buffer);
-                                            }
-                                            FreeLibrary(userHnd);
+        HINSTANCE advapiHnd = LoadLibraryW(L"advapi32");
+        if (advapiHnd) {
+            ptrGetNamedSecurityInfoW = (PtrGetNamedSecurityInfoW)GetProcAddress(advapiHnd, "GetNamedSecurityInfoW");
+            ptrLookupAccountSidW = (PtrLookupAccountSidW)GetProcAddress(advapiHnd, "LookupAccountSidW");
+            ptrAllocateAndInitializeSid = (PtrAllocateAndInitializeSid)GetProcAddress(advapiHnd, "AllocateAndInitializeSid");
+            ptrBuildTrusteeWithSidW = (PtrBuildTrusteeWithSidW)GetProcAddress(advapiHnd, "BuildTrusteeWithSidW");
+            ptrBuildTrusteeWithNameW = (PtrBuildTrusteeWithNameW)GetProcAddress(advapiHnd, "BuildTrusteeWithNameW");
+            ptrGetEffectiveRightsFromAclW = (PtrGetEffectiveRightsFromAclW)GetProcAddress(advapiHnd, "GetEffectiveRightsFromAclW");
+            ptrFreeSid = (PtrFreeSid)GetProcAddress(advapiHnd, "FreeSid");
+        }
+        if (ptrBuildTrusteeWithNameW) {
+            HINSTANCE versionHnd = LoadLibraryW(L"version");
+            if (versionHnd) {
+                typedef DWORD (WINAPI *PtrGetFileVersionInfoSizeW)(LPCWSTR lptstrFilename,LPDWORD lpdwHandle);
+                PtrGetFileVersionInfoSizeW ptrGetFileVersionInfoSizeW = (PtrGetFileVersionInfoSizeW)GetProcAddress(versionHnd, "GetFileVersionInfoSizeW");
+                typedef BOOL (WINAPI *PtrGetFileVersionInfoW)(LPCWSTR lptstrFilename,DWORD dwHandle,DWORD dwLen,LPVOID lpData);
+                PtrGetFileVersionInfoW ptrGetFileVersionInfoW = (PtrGetFileVersionInfoW)GetProcAddress(versionHnd, "GetFileVersionInfoW");
+                typedef BOOL (WINAPI *PtrVerQueryValueW)(const LPVOID pBlock,LPCWSTR lpSubBlock,LPVOID *lplpBuffer,PUINT puLen);
+                PtrVerQueryValueW ptrVerQueryValueW = (PtrVerQueryValueW)GetProcAddress(versionHnd, "VerQueryValueW");
+                if(ptrGetFileVersionInfoSizeW && ptrGetFileVersionInfoW && ptrVerQueryValueW) {
+                    DWORD fakeHandle;
+                    DWORD versionSize = ptrGetFileVersionInfoSizeW(L"secur32.dll", &fakeHandle);
+                    if(versionSize) {
+                        LPVOID versionData;
+                        versionData = malloc(versionSize);
+                        if(ptrGetFileVersionInfoW(L"secur32.dll", 0, versionSize, versionData)) {
+                            UINT puLen;
+                            VS_FIXEDFILEINFO *pLocalInfo;
+                            if(ptrVerQueryValueW(versionData, L"\\", (void**)&pLocalInfo, &puLen)) {
+                                WORD wVer1, wVer2, wVer3, wVer4;
+                                wVer1 = HIWORD(pLocalInfo->dwFileVersionMS);
+                                wVer2 = LOWORD(pLocalInfo->dwFileVersionMS);
+                                wVer3 = HIWORD(pLocalInfo->dwFileVersionLS);
+                                wVer4 = LOWORD(pLocalInfo->dwFileVersionLS);
+                                // It will not work with secur32.dll version 5.0.2195.2862
+                                if(!(wVer1 == 5 && wVer2 == 0 && wVer3 == 2195 && (wVer4 == 2862 || wVer4 == 4587))) {
+                                    HINSTANCE userHnd = LoadLibraryW(L"secur32");
+                                    if (userHnd) {
+                                        typedef BOOL (WINAPI *PtrGetUserNameExW)(EXTENDED_NAME_FORMAT nameFormat, ushort* lpBuffer, LPDWORD nSize);
+                                        PtrGetUserNameExW ptrGetUserNameExW = (PtrGetUserNameExW)GetProcAddress(userHnd, "GetUserNameExW");
+                                        if(ptrGetUserNameExW) {
+                                            static wchar_t buffer[258];
+                                            DWORD bufferSize = 257;
+                                            ptrGetUserNameExW(NameSamCompatible, (ushort*)buffer, &bufferSize);
+                                            ptrBuildTrusteeWithNameW(&currentUserTrusteeW, (ushort*)buffer);
                                         }
+                                        FreeLibrary(userHnd);
                                     }
                                 }
                             }
-                            free(versionData);
                         }
+                        free(versionData);
                     }
-                    FreeLibrary(versionHnd);
                 }
+                FreeLibrary(versionHnd);
             }
             ptrOpenProcessToken = (PtrOpenProcessToken)GetProcAddress(advapiHnd, "OpenProcessToken");
-	        HINSTANCE userenvHnd = LoadLibraryW(L"userenv");
+                HINSTANCE userenvHnd = LoadLibraryW(L"userenv");
             if (userenvHnd) {
                 ptrGetUserProfileDirectoryW = (PtrGetUserProfileDirectoryW)GetProcAddress(userenvHnd, "GetUserProfileDirectoryW");
             }
@@ -225,120 +223,60 @@ void QFSFileEnginePrivate::resolveLibs()
 #endif // QT_NO_LIBRARY
 
 // UNC functions NT
-typedef DWORD (WINAPI *PtrNetShareEnum_NT)(LPWSTR, DWORD, LPBYTE*, DWORD, LPDWORD, LPDWORD, LPDWORD);
-static PtrNetShareEnum_NT ptrNetShareEnum_NT = 0;
-typedef DWORD (WINAPI *PtrNetApiBufferFree_NT)(LPVOID);
-static PtrNetApiBufferFree_NT ptrNetApiBufferFree_NT = 0;
-typedef struct _SHARE_INFO_1_NT {
+typedef DWORD (WINAPI *PtrNetShareEnum)(LPWSTR, DWORD, LPBYTE*, DWORD, LPDWORD, LPDWORD, LPDWORD);
+static PtrNetShareEnum ptrNetShareEnum = 0;
+typedef DWORD (WINAPI *PtrNetApiBufferFree)(LPVOID);
+static PtrNetApiBufferFree ptrNetApiBufferFree = 0;
+typedef struct _SHARE_INFO_1 {
     LPWSTR shi1_netname;
     DWORD shi1_type;
     LPWSTR shi1_remark;
-} SHARE_INFO_1_NT;
+} SHARE_INFO_1;
 
 
-bool QFSFileEnginePrivate::resolveUNCLibs_NT()
+bool QFSFileEnginePrivate::resolveUNCLibs()
 {
     static bool triedResolve = false;
     if (!triedResolve) {
 #ifndef QT_NO_THREAD
         QMutexLocker locker(QMutexPool::globalInstanceGet(&triedResolve));
         if (triedResolve) {
-            return ptrNetShareEnum_NT && ptrNetApiBufferFree_NT;
+            return ptrNetShareEnum && ptrNetApiBufferFree;
         }
 #endif
         triedResolve = true;
 #if !defined(Q_OS_WINCE)
         HINSTANCE hLib = LoadLibraryW(L"Netapi32");
         if (hLib) {
-            ptrNetShareEnum_NT = (PtrNetShareEnum_NT)GetProcAddress(hLib, "NetShareEnum");
-            if (ptrNetShareEnum_NT)
-                ptrNetApiBufferFree_NT = (PtrNetApiBufferFree_NT)GetProcAddress(hLib, "NetApiBufferFree");
-        }
-#endif
-    }
-    return ptrNetShareEnum_NT && ptrNetApiBufferFree_NT;
-}
-
-// UNC functions 9x
-typedef DWORD (WINAPI *PtrNetShareEnum_9x)(const char FAR *, short, char FAR *, unsigned short, unsigned short FAR *, unsigned short FAR *);
-static PtrNetShareEnum_9x ptrNetShareEnum_9x = 0;
-#ifdef LM20_NNLEN
-# define LM20_NNLEN_9x LM20_NNLEN
-#else
-# define LM20_NNLEN_9x 12
-#endif
-typedef struct _SHARE_INFO_1_9x {
-  char shi1_netname[LM20_NNLEN_9x+1];
-  char shi1_pad1;
-  unsigned short shi1_type;
-  char FAR* shi1_remark;
-} SHARE_INFO_1_9x;
-
-bool QFSFileEnginePrivate::resolveUNCLibs_9x()
-{
-    static bool triedResolve = false;
-    if (!triedResolve) {
-#ifndef QT_NO_THREAD
-        QMutexLocker locker(QMutexPool::globalInstanceGet(&triedResolve));
-        if (triedResolve) {
-            return ptrNetShareEnum_9x;
+            ptrNetShareEnum = (PtrNetShareEnum)GetProcAddress(hLib, "NetShareEnum");
+            if (ptrNetShareEnum)
+                ptrNetApiBufferFree = (PtrNetApiBufferFree)GetProcAddress(hLib, "NetApiBufferFree");
         }
 #endif
-        triedResolve = true;
-#if !defined(Q_OS_WINCE)
-        HINSTANCE hLib = LoadLibraryA("Svrapi");
-        if (hLib)
-            ptrNetShareEnum_9x = (PtrNetShareEnum_9x)GetProcAddress(hLib, "NetShareEnum");
-#endif
     }
-    return ptrNetShareEnum_9x;
+    return ptrNetShareEnum && ptrNetApiBufferFree;
 }
 
 bool QFSFileEnginePrivate::uncListSharesOnServer(const QString &server, QStringList *list)
 {
-    if (resolveUNCLibs_NT()) {
-        SHARE_INFO_1_NT *BufPtr, *p;
+    if (resolveUNCLibs()) {
+        SHARE_INFO_1 *BufPtr, *p;
         DWORD res;
         DWORD er=0,tr=0,resume=0, i;
         do {
-            res = ptrNetShareEnum_NT((wchar_t*)server.utf16(), 1, (LPBYTE *)&BufPtr, DWORD(-1), &er, &tr, &resume);
+            res = ptrNetShareEnum((wchar_t*)server.utf16(), 1, (LPBYTE *)&BufPtr, DWORD(-1), &er, &tr, &resume);
             if (res == ERROR_SUCCESS || res == ERROR_MORE_DATA) {
                 p=BufPtr;
                 for (i = 1; i <= er; ++i) {
                     if (list && p->shi1_type == 0)
-                        list->append(QString::fromUtf16((unsigned short *)p->shi1_netname));
+                        list->append(QString::fromWCharArray(p->shi1_netname));
                     p++;
                 }
             }
-            ptrNetApiBufferFree_NT(BufPtr);
+            ptrNetApiBufferFree(BufPtr);
         } while (res==ERROR_MORE_DATA);
         return res == ERROR_SUCCESS;
 
-    } else if (resolveUNCLibs_9x()) {
-        SHARE_INFO_1_9x *pBuf = 0;
-        short cbBuffer;
-        unsigned short nEntriesRead = 0;
-        unsigned short nTotalEntries = 0;
-        short numBuffs = 20;
-        DWORD nStatus = 0;
-        do {
-            cbBuffer = numBuffs * sizeof(SHARE_INFO_1_9x);
-            pBuf = (SHARE_INFO_1_9x *)malloc(cbBuffer);
-            if (pBuf) {
-                nStatus = ptrNetShareEnum_9x(server.toLocal8Bit().constData(), 1, (char FAR *)pBuf, cbBuffer, &nEntriesRead, &nTotalEntries);
-                if ((nStatus == ERROR_SUCCESS)) {
-                    for (int i = 0; i < nEntriesRead; ++i) {
-                        if (list && pBuf[i].shi1_type == 0)
-                            list->append(QString::fromLocal8Bit(pBuf[i].shi1_netname));
-                    }
-                    free(pBuf);
-                    break;
-                }
-                free(pBuf);
-                numBuffs *=2;
-            }
-        } while (nStatus == ERROR_MORE_DATA);
-        return nStatus == ERROR_SUCCESS;
     }
     return false;
 }
@@ -399,39 +337,19 @@ static bool uncShareExists(const QString &server)
     return false;
 }
 
-#if !defined(Q_OS_WINCE)
-// If you change this function, remember to also change the UNICODE version
-static QString nativeAbsoluteFilePathA(const QString &path)
-{
-    QString ret;
-    QVarLengthArray<char, MAX_PATH> buf(MAX_PATH);
-    char *fileName = 0;
-    QByteArray ba = path.toLocal8Bit();
-    DWORD retLen = GetFullPathNameA(ba.constData(), buf.size(), buf.data(), &fileName);
-    if (retLen > (DWORD)buf.size()) {
-        buf.resize(retLen);
-        retLen = GetFullPathNameA(ba.constData(), buf.size(), buf.data(), &fileName);
-    }
-    if (retLen != 0)
-        ret = QString::fromLocal8Bit(buf.data(), retLen);
-    return ret;
-}
-#endif
-
-// If you change this function, remember to also change the NON-UNICODE version
-static QString nativeAbsoluteFilePathW(const QString &path)
+static QString nativeAbsoluteFilePathCore(const QString &path)
 {
     QString ret;
 #if !defined(Q_OS_WINCE)
     QVarLengthArray<wchar_t, MAX_PATH> buf(MAX_PATH);
     wchar_t *fileName = 0;
-    DWORD retLen = GetFullPathNameW((wchar_t*)path.utf16(), buf.size(), buf.data(), &fileName);
+    DWORD retLen = GetFullPathName((wchar_t*)path.utf16(), buf.size(), buf.data(), &fileName);
     if (retLen > (DWORD)buf.size()) {
         buf.resize(retLen);
-        retLen = GetFullPathNameW((wchar_t*)path.utf16(), buf.size(), buf.data(), &fileName);
+        retLen = GetFullPathName((wchar_t*)path.utf16(), buf.size(), buf.data(), &fileName);
     }
     if (retLen != 0)
-        ret = QString::fromUtf16((unsigned short *)buf.data(), retLen);
+        ret = QString::fromWCharArray(buf.data(), retLen);
 #else
     if (path.startsWith(QLatin1Char('/')) || path.startsWith(QLatin1Char('\\')))
         ret = QDir::toNativeSeparators(path);
@@ -443,7 +361,7 @@ static QString nativeAbsoluteFilePathW(const QString &path)
 
 static QString nativeAbsoluteFilePath(const QString &path)
 {
-    QString absPath = QT_WA_INLINE(nativeAbsoluteFilePathW(path), nativeAbsoluteFilePathA(path));
+    QString absPath = nativeAbsoluteFilePathCore(path);
     // This is really ugly, but GetFullPathName strips off whitespace at the end.
     // If you for instance write ". " in the lineedit of QFileDialog,
     // (which is an invalid filename) this function will strip the space off and viola,
@@ -461,26 +379,6 @@ static QString nativeAbsoluteFilePath(const QString &path)
     return absPath;
 }
 
-QByteArray QFSFileEnginePrivate::win95Name(const QString &path)
-{
-    QString ret(path);
-    if(path.length() > 1 && path[0] == QLatin1Char('/') && path[1] == QLatin1Char('/')) {
-        // Win95 cannot handle slash-slash needs slosh-slosh.
-        ret[0] = QLatin1Char('\\');
-        ret[1] = QLatin1Char('\\');
-        int n = ret.indexOf(QLatin1Char('/'));
-        if(n >= 0)
-            ret[n] = QLatin1Char('\\');
-    } else if(path.length() > 3 && path[2] == QLatin1Char('/') && path[3] == QLatin1Char('/')) {
-        ret[2] = QLatin1Char('\\');
-        ret.remove(3, 1);
-        int n = ret.indexOf(QLatin1Char('/'));
-        if(n >= 0)
-            ret[n] = QLatin1Char('\\');
-    }
-    return ret.toLocal8Bit();
-}
-
 /*!
     \internal
 */
@@ -507,13 +405,8 @@ QString QFSFileEnginePrivate::longFileName(const QString &path)
 */
 void QFSFileEnginePrivate::nativeInitFileName()
 {
-    QT_WA({
-        QString path = longFileName(QDir::toNativeSeparators(fixIfRelativeUncPath(filePath)));
-        nativeFilePath = QByteArray((const char *)path.utf16(), path.size() * 2 + 1);
-    }, {
-        QString path = fixIfRelativeUncPath(filePath);
-        nativeFilePath = win95Name(path).replace('/', '\\');
-    });
+		QString path = longFileName(QDir::toNativeSeparators(fixIfRelativeUncPath(filePath)));
+		nativeFilePath = QByteArray((const char *)path.utf16(), path.size() * 2 + 1);
 }
 
 /*
@@ -539,23 +432,13 @@ bool QFSFileEnginePrivate::nativeOpen(QIODevice::OpenMode openMode)
                          ? OPEN_ALWAYS : OPEN_EXISTING;
 
     // Create the file handle.
-    QT_WA({
-        fileHandle = CreateFileW((TCHAR *)nativeFilePath.constData(),
-                                 accessRights,
-                                 shareMode,
-                                 &securityAtts,
-                                 creationDisp,
-                                 FILE_ATTRIBUTE_NORMAL,
-                                 NULL);
-    }, {
-        fileHandle = CreateFileA(nativeFilePath.constData(),
-                                 accessRights,
-                                 shareMode,
-                                 &securityAtts,
-                                 creationDisp,
-                                 FILE_ATTRIBUTE_NORMAL,
-                                 NULL);
-    });
+    fileHandle = CreateFile((const wchar_t*)nativeFilePath.constData(),
+                            accessRights,
+                            shareMode,
+                            &securityAtts,
+                            creationDisp,
+                            FILE_ATTRIBUTE_NORMAL,
+                            NULL);
 
     // Bail out on error.
     if (fileHandle == INVALID_HANDLE_VALUE) {
@@ -641,15 +524,32 @@ qint64 QFSFileEnginePrivate::nativeSize() const
     // Not-open mode, where the file name is known: We'll check the
     // file system directly.
     if (openMode == QIODevice::NotOpen && !nativeFilePath.isEmpty()) {
-        bool ok = false;
         WIN32_FILE_ATTRIBUTE_DATA attribData;
-        QT_WA({
-            ok = ::GetFileAttributesExW((TCHAR *)nativeFilePath.constData(),
+        bool ok = ::GetFileAttributesEx((const wchar_t*)nativeFilePath.constData(),
                                         GetFileExInfoStandard, &attribData);
-        } , {
-            ok = ::GetFileAttributesExA(nativeFilePath.constData(),
-                                        GetFileExInfoStandard, &attribData);
-        });
+        if (!ok) {
+            int errorCode = GetLastError();
+            if (errorCode != ERROR_INVALID_NAME
+                && errorCode != ERROR_FILE_NOT_FOUND && errorCode != ERROR_PATH_NOT_FOUND) {
+                QByteArray path = nativeFilePath;
+                // path for the FindFirstFile should not end with a trailing slash
+                while (path.endsWith('\\'))
+                    path.chop(1);
+
+                // FindFirstFile can not handle drives
+                if (!path.endsWith(':')) {
+                    WIN32_FIND_DATA findData;
+                    HANDLE hFind = ::FindFirstFile((const wchar_t*)path.constData(),
+                                                   &findData);
+                    if (hFind != INVALID_HANDLE_VALUE) {
+                        ::FindClose(hFind);
+                        ok = true;
+                        attribData.nFileSizeHigh = findData.nFileSizeHigh;
+                        attribData.nFileSizeLow = findData.nFileSizeLow;
+                    }
+                }
+            }
+        }
         if (ok) {
             qint64 size = attribData.nFileSizeHigh;
             size <<= 32;
@@ -711,28 +611,28 @@ qint64 QFSFileEnginePrivate::nativePos() const
     if (fileHandle == INVALID_HANDLE_VALUE)
         return 0;
 
-#if !defined(QT_NO_LIBRARY)
+#if !defined(QT_NO_LIBRARY) && !defined(Q_OS_WINCE)
     QFSFileEnginePrivate::resolveLibs();
     if (!ptrSetFilePointerEx) {
 #endif
-        DWORD newFilePointer = SetFilePointer(fileHandle, 0, NULL, FILE_CURRENT);
-        if (newFilePointer == 0xFFFFFFFF) {
+        LARGE_INTEGER filepos;
+        filepos.HighPart = 0;
+        DWORD newFilePointer = SetFilePointer(fileHandle, 0, &filepos.HighPart, FILE_CURRENT);
+        if (newFilePointer == 0xFFFFFFFF && GetLastError() != NO_ERROR) {
             thatQ->setError(QFile::UnspecifiedError, qt_error_string());
             return 0;
         }
 
-        // Note: returns <4GB; does not work with large files. This is the
-        // case for MOC, UIC, qmake and other bootstrapped tools, and for
-        // Win9x/ME.
-        return qint64(newFilePointer);
-#if !defined(QT_NO_LIBRARY)
+        // Note: This is the case for MOC, UIC, qmake and other
+        //       bootstrapped tools, and for Windows CE.
+        filepos.LowPart = newFilePointer;
+        return filepos.QuadPart;
+#if !defined(QT_NO_LIBRARY) && !defined(Q_OS_WINCE)
     }
 
-    // This approach supports large files.
     LARGE_INTEGER currentFilePos;
     LARGE_INTEGER offset;
-    offset.LowPart = 0;
-    offset.HighPart = 0;
+    offset.QuadPart = 0;
     if (!ptrSetFilePointerEx(fileHandle, offset, &currentFilePos, FILE_CURRENT)) {
         thatQ->setError(QFile::UnspecifiedError, qt_error_string());
         return 0;
@@ -755,28 +655,27 @@ bool QFSFileEnginePrivate::nativeSeek(qint64 pos)
         return seekFdFh(pos);
     }
 
-#if !defined(QT_NO_LIBRARY)
+#if !defined(QT_NO_LIBRARY) && !defined(Q_OS_WINCE)
     QFSFileEnginePrivate::resolveLibs();
     if (!ptrSetFilePointerEx) {
 #endif
-        LONG seekToPos = LONG(pos); // <- lossy
-        DWORD newFilePointer = SetFilePointer(fileHandle, seekToPos, NULL, FILE_BEGIN);
-        if (newFilePointer == 0xFFFFFFFF) {
-            thatQ->setError(QFile::UnspecifiedError, qt_error_string());
+        DWORD newFilePointer;
+        LARGE_INTEGER *li = reinterpret_cast<LARGE_INTEGER*>(&pos);
+        newFilePointer = SetFilePointer(fileHandle, li->LowPart, &li->HighPart, FILE_BEGIN);
+        if (newFilePointer == 0xFFFFFFFF && GetLastError() != NO_ERROR) {
+            thatQ->setError(QFile::PositionError, qt_error_string());
             return false;
         }
 
-        // Note: does not work with large files. This is the case for MOC,
-        // UIC, qmake and other bootstrapped tools, and for Win9x/ME.
+        // Note: This is the case for MOC, UIC, qmake and other
+        //       bootstrapped tools, and for Windows CE.
         return true;
-#if !defined(QT_NO_LIBRARY)
+#if !defined(QT_NO_LIBRARY) && !defined(Q_OS_WINCE)
     }
 
-    // This approach supports large files.
     LARGE_INTEGER currentFilePos;
     LARGE_INTEGER offset;
-    offset.LowPart = (unsigned int)(quint64(pos) & Q_UINT64_C(0xffffffff));
-    offset.HighPart = (unsigned int)((quint64(pos) >> 32) & Q_UINT64_C(0xffffffff));
+    offset.QuadPart = pos;
     if (ptrSetFilePointerEx(fileHandle, offset, &currentFilePos, FILE_BEGIN) == 0) {
         thatQ->setError(QFile::UnspecifiedError, qt_error_string());
         return false;
@@ -949,35 +848,21 @@ bool QFSFileEnginePrivate::nativeIsSequential() const
 bool QFSFileEngine::remove()
 {
     Q_D(QFSFileEngine);
-    QT_WA({
-        return ::DeleteFileW((TCHAR*)QFSFileEnginePrivate::longFileName(d->filePath).utf16()) != 0;
-    } , {
-        return ::DeleteFileA(QFSFileEnginePrivate::win95Name(d->filePath)) != 0;
-    });
+    return ::DeleteFile((wchar_t*)QFSFileEnginePrivate::longFileName(d->filePath).utf16()) != 0;
 }
 
 bool QFSFileEngine::copy(const QString &copyName)
 {
     Q_D(QFSFileEngine);
-    QT_WA({
-        return ::CopyFileW((TCHAR*)QFSFileEnginePrivate::longFileName(d->filePath).utf16(),
-                           (TCHAR*)QFSFileEnginePrivate::longFileName(copyName).utf16(), true) != 0;
-    } , {
-        return ::CopyFileA(QFSFileEnginePrivate::win95Name(d->filePath),
-                           QFSFileEnginePrivate::win95Name(copyName), true) != 0;
-    });
+    return ::CopyFile((wchar_t*)QFSFileEnginePrivate::longFileName(d->filePath).utf16(),
+                      (wchar_t*)QFSFileEnginePrivate::longFileName(copyName).utf16(), true) != 0;
 }
 
 bool QFSFileEngine::rename(const QString &newName)
 {
     Q_D(QFSFileEngine);
-    QT_WA({
-        return ::MoveFileW((TCHAR*)QFSFileEnginePrivate::longFileName(d->filePath).utf16(),
-                           (TCHAR*)QFSFileEnginePrivate::longFileName(newName).utf16()) != 0;
-    } , {
-        return ::MoveFileA(QFSFileEnginePrivate::win95Name(d->filePath),
-                           QFSFileEnginePrivate::win95Name(newName)) != 0;
-    });
+    return ::MoveFile((wchar_t*)QFSFileEnginePrivate::longFileName(d->filePath).utf16(),
+                      (wchar_t*)QFSFileEnginePrivate::longFileName(newName).utf16()) != 0;
 }
 
 static inline bool mkDir(const QString &path)
@@ -1001,20 +886,12 @@ static inline bool mkDir(const QString &path)
     if (platformId == 1 && QFSFileEnginePrivate::longFileName(path).size() > 256)
         return false;
 #endif
-    QT_WA({
-        return ::CreateDirectoryW((TCHAR*)QFSFileEnginePrivate::longFileName(path).utf16(), 0);
-    } , {
-        return ::CreateDirectoryA(QFSFileEnginePrivate::win95Name(QFileInfo(path).absoluteFilePath()), 0);
-    });
+    return ::CreateDirectory((wchar_t*)QFSFileEnginePrivate::longFileName(path).utf16(), 0);
 }
 
 static inline bool rmDir(const QString &path)
 {
-    QT_WA({
-        return ::RemoveDirectoryW((TCHAR*)QFSFileEnginePrivate::longFileName(path).utf16());
-    } , {
-        return ::RemoveDirectoryA(QFSFileEnginePrivate::win95Name(QFileInfo(path).absoluteFilePath()));
-    });
+    return ::RemoveDirectory((wchar_t*)QFSFileEnginePrivate::longFileName(path).utf16());
 }
 
 static inline bool isDirPath(const QString &dirPath, bool *existed)
@@ -1023,12 +900,27 @@ static inline bool isDirPath(const QString &dirPath, bool *existed)
     if (path.length() == 2 &&path.at(1) == QLatin1Char(':'))
         path += QLatin1Char('\\');
 
-    DWORD fileAttrib = INVALID_FILE_ATTRIBUTES;
-    QT_WA({
-        fileAttrib = ::GetFileAttributesW((TCHAR*)QFSFileEnginePrivate::longFileName(path).utf16());
-    } , {
-        fileAttrib = ::GetFileAttributesA(QFSFileEnginePrivate::win95Name(QFileInfo(path).absoluteFilePath()));
-    });
+    DWORD fileAttrib = ::GetFileAttributes((wchar_t*)QFSFileEnginePrivate::longFileName(path).utf16());
+    if (fileAttrib == INVALID_FILE_ATTRIBUTES) {
+        int errorCode = GetLastError();
+        if (errorCode != ERROR_INVALID_NAME
+            && errorCode != ERROR_FILE_NOT_FOUND && errorCode != ERROR_PATH_NOT_FOUND) {
+            // path for the FindFirstFile should not end with a trailing slash
+            while (path.endsWith(QLatin1Char('\\')))
+                path.chop(1);
+
+            // FindFirstFile can not handle drives
+            if (!path.endsWith(QLatin1Char(':'))) {
+                WIN32_FIND_DATA findData;
+                HANDLE hFind = ::FindFirstFile((wchar_t*)QFSFileEnginePrivate::longFileName(path).utf16(),
+                                               &findData);
+                if (hFind != INVALID_HANDLE_VALUE) {
+                    ::FindClose(hFind);
+                    fileAttrib = findData.dwFileAttributes;
+                }
+            }
+        }
+    }
 
     if (existed)
         *existed = fileAttrib != INVALID_FILE_ATTRIBUTES;
@@ -1110,16 +1002,10 @@ bool QFSFileEngine::setCurrentPath(const QString &path)
         return false;
 
 #if !defined(Q_OS_WINCE)
-    int r;
-    QT_WA({
-        r = ::SetCurrentDirectoryW((WCHAR*)path.utf16());
-    } , {
-        r = ::SetCurrentDirectoryA(QFSFileEnginePrivate::win95Name(path));
-    });
-    return r != 0;
+    return ::SetCurrentDirectory((wchar_t*)path.utf16()) != 0;
 #else
-	qfsPrivateCurrentDir = QFSFileEnginePrivate::longFileName(path);
-	return true;
+        qfsPrivateCurrentDir = QFSFileEnginePrivate::longFileName(path);
+        return true;
 #endif
 }
 
@@ -1132,48 +1018,34 @@ QString QFSFileEngine::currentPath(const QString &fileName)
         fileName.at(0).isLetter() && fileName.at(1) == QLatin1Char(':')) {
         int drv = fileName.toUpper().at(0).toLatin1() - 'A' + 1;
         if (_getdrive() != drv) {
-            QT_WA({
-                TCHAR buf[PATH_MAX];
-                ::_wgetdcwd(drv, buf, PATH_MAX);
-                ret.setUtf16((ushort*)buf, uint(::wcslen(buf)));
-            }, {
-                char buf[PATH_MAX];
-                ::_getdcwd(drv, buf, PATH_MAX);
-                ret = QString::fromLatin1(buf);
-            });
+            wchar_t buf[PATH_MAX];
+            ::_wgetdcwd(drv, buf, PATH_MAX);
+            ret = QString::fromWCharArray(buf);
         }
     }
     if (ret.isEmpty()) {
         //just the pwd
-        QT_WA({
-            DWORD size = 0;
-            WCHAR currentName[PATH_MAX];
-            size = ::GetCurrentDirectoryW(PATH_MAX, currentName);
-            if (size !=0) {
-                if (size > PATH_MAX) {
-                    WCHAR * newCurrentName = new WCHAR[size];
-                    if (::GetCurrentDirectoryW(PATH_MAX, newCurrentName) != 0)
-                        ret = QString::fromUtf16((ushort*)newCurrentName);
-                    delete [] newCurrentName;
-                } else {
-                    ret = QString::fromUtf16((ushort*)currentName);
-                }
+        DWORD size = 0;
+        wchar_t currentName[PATH_MAX];
+        size = ::GetCurrentDirectory(PATH_MAX, currentName);
+        if (size != 0) {
+            if (size > PATH_MAX) {
+                wchar_t *newCurrentName = new wchar_t[size];
+                if (::GetCurrentDirectory(PATH_MAX, newCurrentName) != 0)
+                    ret = QString::fromWCharArray(newCurrentName);
+                delete [] newCurrentName;
+            } else {
+                ret = QString::fromWCharArray(currentName);
             }
-        } , {
-            DWORD size = 0;
-            char currentName[PATH_MAX];
-            size = ::GetCurrentDirectoryA(PATH_MAX, currentName);
-            if (size !=0)
-                ret = QString::fromLocal8Bit(currentName);
-        });
+        }
     }
     if (ret.length() >= 2 && ret[1] == QLatin1Char(':'))
         ret[0] = ret.at(0).toUpper(); // Force uppercase drive letters.
     return QDir::fromNativeSeparators(ret);
 #else
-	Q_UNUSED(fileName);
-	if (qfsPrivateCurrentDir.isEmpty())
-		qfsPrivateCurrentDir = QCoreApplication::applicationDirPath();
+        Q_UNUSED(fileName);
+        if (qfsPrivateCurrentDir.isEmpty())
+                qfsPrivateCurrentDir = QCoreApplication::applicationDirPath();
 
     return QDir::fromNativeSeparators(qfsPrivateCurrentDir);
 #endif
@@ -1183,35 +1055,27 @@ QString QFSFileEngine::homePath()
 {
     QString ret;
 #if !defined(QT_NO_LIBRARY)
-    QT_WA (
-    {
-        QFSFileEnginePrivate::resolveLibs();
-		if (ptrOpenProcessToken && ptrGetUserProfileDirectoryW) {
-			HANDLE hnd = ::GetCurrentProcess();
-			HANDLE token = 0;
-			BOOL ok = ::ptrOpenProcessToken(hnd, TOKEN_QUERY, &token);
-			if (ok) {
-				DWORD dwBufferSize = 0;
-				// First call, to determine size of the strings (with '\0').
-				ok = ::ptrGetUserProfileDirectoryW(token, NULL, &dwBufferSize);
-				if (!ok && dwBufferSize != 0) {		// We got the required buffer size
-					wchar_t *userDirectory = new wchar_t[dwBufferSize];
-					// Second call, now we can fill the allocated buffer.
-					ok = ::ptrGetUserProfileDirectoryW(token, userDirectory, &dwBufferSize);
-					if (ok)
-						ret = QString::fromUtf16((ushort*)userDirectory);
-
-					delete [] userDirectory;
-				}
-				::CloseHandle(token);
-			}
-		}
-    }
-    ,
-    {
-        // GetUserProfileDirectory is only available from NT 4.0,
-		// so fall through for Win98 and friends version.
-    })
+    QFSFileEnginePrivate::resolveLibs();
+    if (ptrOpenProcessToken && ptrGetUserProfileDirectoryW) {
+        HANDLE hnd = ::GetCurrentProcess();
+        HANDLE token = 0;
+        BOOL ok = ::ptrOpenProcessToken(hnd, TOKEN_QUERY, &token);
+        if (ok) {
+            DWORD dwBufferSize = 0;
+            // First call, to determine size of the strings (with '\0').
+            ok = ::ptrGetUserProfileDirectoryW(token, NULL, &dwBufferSize);
+            if (!ok && dwBufferSize != 0) {        // We got the required buffer size
+                wchar_t *userDirectory = new wchar_t[dwBufferSize];
+                // Second call, now we can fill the allocated buffer.
+                ok = ::ptrGetUserProfileDirectoryW(token, userDirectory, &dwBufferSize);
+                if (ok)
+                    ret = QString::fromWCharArray(userDirectory);
+
+                delete [] userDirectory;
+            }
+            ::CloseHandle(token);
+        }
+                }
 #endif
     if(ret.isEmpty() || !QFile::exists(ret)) {
         ret = QString::fromLocal8Bit(qgetenv("USERPROFILE").constData());
@@ -1251,17 +1115,10 @@ QString QFSFileEngine::rootPath()
 
 QString QFSFileEngine::tempPath()
 {
-    QString ret;
-    int success;
-    QT_WA({
-        wchar_t tempPath[MAX_PATH];
-        success = GetTempPathW(MAX_PATH, tempPath);
-        ret = QString::fromUtf16((ushort*)tempPath);
-    } , {
-        char tempPath[MAX_PATH];
-        success = GetTempPathA(MAX_PATH, tempPath);
-        ret = QString::fromLocal8Bit(tempPath);
-    });
+    wchar_t tempPath[MAX_PATH];
+    int success = GetTempPath(MAX_PATH, tempPath);
+    QString ret = QString::fromWCharArray(tempPath);
+
     if (ret.isEmpty() || !success) {
 #if !defined(Q_OS_WINCE)
         ret = QString::fromLatin1("c:/tmp");
@@ -1285,7 +1142,7 @@ QFileInfoList QFSFileEngine::drives()
 #elif defined(Q_OS_OS2EMX)
     quint32 driveBits, cur;
     if(DosQueryCurrentDisk(&cur,&driveBits) != NO_ERROR)
-	exit(1);
+        exit(1);
     driveBits &= 0x3ffffff;
 #endif
     char driveName[] = "A:/";
@@ -1327,18 +1184,35 @@ bool QFSFileEnginePrivate::doStat() const
                 }
             }
 #else
-            DWORD tmpAttributes = GetFileAttributesW((TCHAR*)QFSFileEnginePrivate::longFileName(fname).utf16());
+            DWORD tmpAttributes = GetFileAttributes((wchar_t*)QFSFileEnginePrivate::longFileName(fname).utf16());
             if (tmpAttributes != -1) {
                 fileAttrib = tmpAttributes;
                 could_stat = true;
             }
 #endif
         } else {
-            QT_WA({
-                fileAttrib = GetFileAttributesW((TCHAR*)QFSFileEnginePrivate::longFileName(fname).utf16());
-            } , {
-                fileAttrib = GetFileAttributesA(QFSFileEnginePrivate::win95Name(QFileInfo(fname).absoluteFilePath()));
-            });
+            fileAttrib = GetFileAttributes((wchar_t*)QFSFileEnginePrivate::longFileName(fname).utf16());
+            if (fileAttrib == INVALID_FILE_ATTRIBUTES) {
+                int errorCode = GetLastError();
+                if (errorCode != ERROR_INVALID_NAME
+                    && errorCode != ERROR_FILE_NOT_FOUND && errorCode != ERROR_PATH_NOT_FOUND) {
+                    QString path = QDir::toNativeSeparators(fname);
+                    // path for the FindFirstFile should not end with a trailing slash
+                    while (path.endsWith(QLatin1Char('\\')))
+                        path.chop(1);
+
+                    // FindFirstFile can not handle drives
+                    if (!path.endsWith(QLatin1Char(':'))) {
+                        WIN32_FIND_DATA findData;
+                        HANDLE hFind = ::FindFirstFile((wchar_t*)QFSFileEnginePrivate::longFileName(path).utf16(),
+                                                       &findData);
+                        if (hFind != INVALID_HANDLE_VALUE) {
+                            ::FindClose(hFind);
+                            fileAttrib = findData.dwFileAttributes;
+                        }
+                    }
+                }
+            }
             could_stat = fileAttrib != INVALID_FILE_ATTRIBUTES;
             if (!could_stat) {
 #if !defined(Q_OS_WINCE)
@@ -1398,74 +1272,39 @@ static QString readLink(const QString &link)
 #if !defined(Q_OS_WINCE)
 #if !defined(QT_NO_LIBRARY) && !defined(Q_CC_MWERKS)
     QString ret;
-    QT_WA({
-        bool neededCoInit = false;
-        IShellLink *psl;                            // pointer to IShellLink i/f
-        HRESULT hres;
-        WIN32_FIND_DATA wfd;
-        TCHAR szGotPath[MAX_PATH];
-        // Get pointer to the IShellLink interface.
-        hres = CoCreateInstance(CLSID_ShellLink, NULL, CLSCTX_INPROC_SERVER,
-                                    IID_IShellLink, (LPVOID *)&psl);
 
-        if(hres == CO_E_NOTINITIALIZED) { // COM was not initialized
-            neededCoInit = true;
-            CoInitialize(NULL);
-            hres = CoCreateInstance(CLSID_ShellLink, NULL, CLSCTX_INPROC_SERVER,
-                                        IID_IShellLink, (LPVOID *)&psl);
-        }
-        if(SUCCEEDED(hres)) {    // Get pointer to the IPersistFile interface.
-            IPersistFile *ppf;
-            hres = psl->QueryInterface(IID_IPersistFile, (LPVOID *)&ppf);
-            if(SUCCEEDED(hres))  {
-                hres = ppf->Load((LPOLESTR)link.utf16(), STGM_READ);
-                //The original path of the link is retrieved. If the file/folder
-                //was moved, the return value still have the old path.
-                if(SUCCEEDED(hres)) {
-                    if (psl->GetPath(szGotPath, MAX_PATH, &wfd, SLGP_UNCPRIORITY) == NOERROR)
-                        ret = QString::fromUtf16((ushort*)szGotPath);
-                }
-                ppf->Release();
-            }
-            psl->Release();
-        }
-        if(neededCoInit)
-            CoUninitialize();
-    } , {
-	    bool neededCoInit = false;
-        IShellLinkA *psl;                            // pointer to IShellLink i/f
-        HRESULT hres;
-        WIN32_FIND_DATAA wfd;
-        char szGotPath[MAX_PATH];
-        // Get pointer to the IShellLink interface.
+    bool neededCoInit = false;
+    IShellLink *psl;                            // pointer to IShellLink i/f
+    WIN32_FIND_DATA wfd;
+    wchar_t szGotPath[MAX_PATH];
 
-        hres = CoCreateInstance(CLSID_ShellLink, NULL, CLSCTX_INPROC_SERVER,
-                                    IID_IShellLinkA, (LPVOID *)&psl);
+    // Get pointer to the IShellLink interface.
+    HRESULT hres = CoCreateInstance(CLSID_ShellLink, NULL, CLSCTX_INPROC_SERVER, IID_IShellLink, (LPVOID *)&psl);
 
-        if(hres == CO_E_NOTINITIALIZED) { // COM was not initialized
-            neededCoInit = true;
-            CoInitialize(NULL);
-            hres = CoCreateInstance(CLSID_ShellLink, NULL, CLSCTX_INPROC_SERVER,
-                                        IID_IShellLinkA, (LPVOID *)&psl);
-        }
-        if(SUCCEEDED(hres)) {    // Get pointer to the IPersistFile interface.
-            IPersistFile *ppf;
-            hres = psl->QueryInterface(IID_IPersistFile, (LPVOID *)&ppf);
-            if(SUCCEEDED(hres))  {
-                hres = ppf->Load((LPOLESTR)QFileInfo(link).absoluteFilePath().utf16(), STGM_READ);
-                //The original path of the link is retrieved. If the file/folder
-                //was moved, the return value still have the old path.
-                 if(SUCCEEDED(hres)) {
-                    if (psl->GetPath((char*)szGotPath, MAX_PATH, &wfd, SLGP_UNCPRIORITY) == NOERROR)
-                        ret = QString::fromLocal8Bit(szGotPath);
-                }
-                ppf->Release();
+    if (hres == CO_E_NOTINITIALIZED) { // COM was not initialized
+        neededCoInit = true;
+        CoInitialize(NULL);
+        hres = CoCreateInstance(CLSID_ShellLink, NULL, CLSCTX_INPROC_SERVER,
+                                    IID_IShellLink, (LPVOID *)&psl);
+    }
+    if (SUCCEEDED(hres)) {    // Get pointer to the IPersistFile interface.
+        IPersistFile *ppf;
+        hres = psl->QueryInterface(IID_IPersistFile, (LPVOID *)&ppf);
+        if(SUCCEEDED(hres))  {
+            hres = ppf->Load((LPOLESTR)link.utf16(), STGM_READ);
+            //The original path of the link is retrieved. If the file/folder
+            //was moved, the return value still have the old path.
+            if(SUCCEEDED(hres)) {
+                if (psl->GetPath(szGotPath, MAX_PATH, &wfd, SLGP_UNCPRIORITY) == NOERROR)
+                    ret = QString::fromWCharArray(szGotPath);
             }
-            psl->Release();
+            ppf->Release();
         }
-        if(neededCoInit)
-            CoUninitialize();
-    });
+        psl->Release();
+    }
+    if (neededCoInit)
+        CoUninitialize();
+
     return ret;
 #else
     Q_UNUSED(link);
@@ -1475,7 +1314,7 @@ static QString readLink(const QString &link)
     wchar_t target[MAX_PATH];
     QString result;
     if (SHGetShortcutTarget((wchar_t*)QFileInfo(link).absoluteFilePath().replace(QLatin1Char('/'),QLatin1Char('\\')).utf16(), target, MAX_PATH)) {
-        result = QString::fromUtf16(reinterpret_cast<const ushort *> (target));
+        result = QString::fromWCharArray(target);
         if (result.startsWith(QLatin1Char('"')))
             result.remove(0,1);
         if (result.endsWith(QLatin1Char('"')))
@@ -1502,76 +1341,37 @@ bool QFSFileEngine::link(const QString &newName)
     QString linkName = newName;
     //### assume that they add .lnk
 
-    QT_WA({
-        HRESULT hres;
-        IShellLink *psl;
-        bool neededCoInit = false;
+    IShellLink *psl;
+    bool neededCoInit = false;
 
-        hres = CoCreateInstance(CLSID_ShellLink, NULL, CLSCTX_INPROC_SERVER, IID_IShellLink, (void **)&psl);
-        if(hres == CO_E_NOTINITIALIZED) { // COM was not initialized
-                neededCoInit = true;
-                CoInitialize(NULL);
-                hres = CoCreateInstance(CLSID_ShellLink, NULL, CLSCTX_INPROC_SERVER, IID_IShellLink, (void **)&psl);
-        }
-        if (SUCCEEDED(hres)) {
-            hres = psl->SetPath((wchar_t *)fileName(AbsoluteName).replace(QLatin1Char('/'), QLatin1Char('\\')).utf16());
-            if (SUCCEEDED(hres)) {
-                hres = psl->SetWorkingDirectory((wchar_t *)fileName(AbsolutePathName).replace(QLatin1Char('/'), QLatin1Char('\\')).utf16());
-                if (SUCCEEDED(hres)) {
-                    IPersistFile *ppf;
-                    hres = psl->QueryInterface(IID_IPersistFile, (void **)&ppf);
-                    if (SUCCEEDED(hres)) {
-                        hres = ppf->Save((TCHAR*)linkName.utf16(), TRUE);
-                        if (SUCCEEDED(hres))
-                             ret = true;
-                        ppf->Release();
-                    }
-                }
-            }
-            psl->Release();
-        }
-        if(neededCoInit)
-                CoUninitialize();
-    } , {
-        // the SetPath() call _sometimes_ changes the current path and when it does it sometimes
-        // does not let us change it back unless we call currentPath() many times.
-        QString cwd = currentPath();
-        HRESULT hres;
-        IShellLinkA *psl;
-        bool neededCoInit = false;
+    HRESULT hres = CoCreateInstance(CLSID_ShellLink, NULL, CLSCTX_INPROC_SERVER, IID_IShellLink, (void **)&psl);
 
+    if (hres == CO_E_NOTINITIALIZED) { // COM was not initialized
+        neededCoInit = true;
+        CoInitialize(NULL);
         hres = CoCreateInstance(CLSID_ShellLink, NULL, CLSCTX_INPROC_SERVER, IID_IShellLink, (void **)&psl);
-        if(hres == CO_E_NOTINITIALIZED) { // COM was not initialized
-            neededCoInit = true;
-            CoInitialize(NULL);
-            hres = CoCreateInstance(CLSID_ShellLink, NULL, CLSCTX_INPROC_SERVER, IID_IShellLink, (void **)&psl);
-        }
+    }
+
+    if (SUCCEEDED(hres)) {
+        hres = psl->SetPath((wchar_t *)fileName(AbsoluteName).replace(QLatin1Char('/'), QLatin1Char('\\')).utf16());
         if (SUCCEEDED(hres)) {
-            currentPath();
-            hres = psl->SetPath((char *)QString::fromLocal8Bit(QFSFileEnginePrivate::win95Name(fileName(AbsoluteName))).utf16());
-            currentPath();
+            hres = psl->SetWorkingDirectory((wchar_t *)fileName(AbsolutePathName).replace(QLatin1Char('/'), QLatin1Char('\\')).utf16());
             if (SUCCEEDED(hres)) {
-                hres = psl->SetWorkingDirectory((char *)QString::fromLocal8Bit(QFSFileEnginePrivate::win95Name(fileName(AbsolutePathName))).utf16());
-                currentPath();
+                IPersistFile *ppf;
+                hres = psl->QueryInterface(IID_IPersistFile, (void **)&ppf);
                 if (SUCCEEDED(hres)) {
-                    IPersistFile *ppf;
-                    hres = psl->QueryInterface(IID_IPersistFile, (void **)&ppf);
-                    if (SUCCEEDED(hres)) {
-                        currentPath();
-                        hres = ppf->Save((LPCOLESTR)linkName.utf16(), TRUE);
-                        currentPath();
-                        if (SUCCEEDED(hres))
-                            ret = true;
-                        ppf->Release();
-                    }
+                    hres = ppf->Save((wchar_t*)linkName.utf16(), TRUE);
+                    if (SUCCEEDED(hres))
+                         ret = true;
+                    ppf->Release();
                 }
-                psl->Release();
             }
         }
-        if(neededCoInit)
+        psl->Release();
+    }
+    if(neededCoInit)
             CoUninitialize();
-        setCurrentPath(cwd);
-    });
+
     return ret;
 #else
     Q_UNUSED(newName);
@@ -1598,9 +1398,9 @@ QAbstractFileEngine::FileFlags QFSFileEnginePrivate::getPermissions() const
 
 #if !defined(QT_NO_LIBRARY)
     if((qt_ntfs_permission_lookup > 0) && ((QSysInfo::WindowsVersion&QSysInfo::WV_NT_based) > QSysInfo::WV_NT)) {
-	PSID pOwner = 0;
-	PSID pGroup = 0;
-	PACL pDacl;
+        PSID pOwner = 0;
+        PSID pGroup = 0;
+        PACL pDacl;
         PSECURITY_DESCRIPTOR pSD;
         ACCESS_MASK access_mask;
 
@@ -1610,42 +1410,42 @@ QAbstractFileEngine::FileFlags QFSFileEnginePrivate::getPermissions() const
 
             QString fname = filePath.endsWith(QLatin1String(".lnk")) ? readLink(filePath) : filePath;
             DWORD res = ptrGetNamedSecurityInfoW((wchar_t*)fname.utf16(), SE_FILE_OBJECT,
-						 OWNER_SECURITY_INFORMATION | GROUP_SECURITY_INFORMATION | DACL_SECURITY_INFORMATION,
-						 &pOwner, &pGroup, &pDacl, 0, &pSD);
+                                                 OWNER_SECURITY_INFORMATION | GROUP_SECURITY_INFORMATION | DACL_SECURITY_INFORMATION,
+                                                 &pOwner, &pGroup, &pDacl, 0, &pSD);
 
             if(res == ERROR_SUCCESS) {
                 TRUSTEE_W trustee;
                 { //user
                     if(ptrGetEffectiveRightsFromAclW(pDacl, &currentUserTrusteeW, &access_mask) != ERROR_SUCCESS)
                         access_mask = (ACCESS_MASK)-1;
-		    if(access_mask & ReadMask)
-			ret |= QAbstractFileEngine::ReadUserPerm;
-		    if(access_mask & WriteMask)
-			ret |= QAbstractFileEngine::WriteUserPerm;
-		    if(access_mask & ExecMask)
-			ret |= QAbstractFileEngine::ExeUserPerm;
+                    if(access_mask & ReadMask)
+                        ret |= QAbstractFileEngine::ReadUserPerm;
+                    if(access_mask & WriteMask)
+                        ret |= QAbstractFileEngine::WriteUserPerm;
+                    if(access_mask & ExecMask)
+                        ret |= QAbstractFileEngine::ExeUserPerm;
                 }
                 { //owner
                     ptrBuildTrusteeWithSidW(&trustee, pOwner);
                     if(ptrGetEffectiveRightsFromAclW(pDacl, &trustee, &access_mask) != ERROR_SUCCESS)
                         access_mask = (ACCESS_MASK)-1;
-		    if(access_mask & ReadMask)
-			ret |= QAbstractFileEngine::ReadOwnerPerm;
-		    if(access_mask & WriteMask)
-			ret |= QAbstractFileEngine::WriteOwnerPerm;
-		    if(access_mask & ExecMask)
-			ret |= QAbstractFileEngine::ExeOwnerPerm;
+                    if(access_mask & ReadMask)
+                        ret |= QAbstractFileEngine::ReadOwnerPerm;
+                    if(access_mask & WriteMask)
+                        ret |= QAbstractFileEngine::WriteOwnerPerm;
+                    if(access_mask & ExecMask)
+                        ret |= QAbstractFileEngine::ExeOwnerPerm;
                 }
                 { //group
                     ptrBuildTrusteeWithSidW(&trustee, pGroup);
                     if(ptrGetEffectiveRightsFromAclW(pDacl, &trustee, &access_mask) != ERROR_SUCCESS)
                         access_mask = (ACCESS_MASK)-1;
-		    if(access_mask & ReadMask)
-			ret |= QAbstractFileEngine::ReadGroupPerm;
-		    if(access_mask & WriteMask)
-			ret |= QAbstractFileEngine::WriteGroupPerm;
-		    if(access_mask & ExecMask)
-			ret |= QAbstractFileEngine::ExeGroupPerm;
+                    if(access_mask & ReadMask)
+                        ret |= QAbstractFileEngine::ReadGroupPerm;
+                    if(access_mask & WriteMask)
+                        ret |= QAbstractFileEngine::WriteGroupPerm;
+                    if(access_mask & ExecMask)
+                        ret |= QAbstractFileEngine::ExeGroupPerm;
                 }
                 { //other (world)
                     // Create SID for Everyone (World)
@@ -1655,12 +1455,12 @@ QAbstractFileEngine::FileFlags QFSFileEnginePrivate::getPermissions() const
                         ptrBuildTrusteeWithSidW(&trustee, pWorld);
                         if(ptrGetEffectiveRightsFromAclW(pDacl, &trustee, &access_mask) != ERROR_SUCCESS)
                             access_mask = (ACCESS_MASK)-1; // ###
-			if(access_mask & ReadMask)
-			    ret |= QAbstractFileEngine::ReadOtherPerm;
-			if(access_mask & WriteMask)
-			    ret |= QAbstractFileEngine::WriteOtherPerm;
-			if(access_mask & ExecMask)
-			    ret |= QAbstractFileEngine::ExeOtherPerm;
+                        if(access_mask & ReadMask)
+                            ret |= QAbstractFileEngine::ReadOtherPerm;
+                        if(access_mask & WriteMask)
+                            ret |= QAbstractFileEngine::WriteOtherPerm;
+                        if(access_mask & ExecMask)
+                            ret |= QAbstractFileEngine::ExeOtherPerm;
                     }
                     ptrFreeSid(pWorld);
                 }
@@ -1670,13 +1470,13 @@ QAbstractFileEngine::FileFlags QFSFileEnginePrivate::getPermissions() const
     } else
 #endif
            {
-	//### what to do with permissions if we don't use ntfs or are not on a NT system
-	// for now just add all permissions and what about exe missions ??
-	// also qt_ntfs_permission_lookup is now not set by defualt ... should it ?
-    	ret |= QAbstractFileEngine::ReadOtherPerm | QAbstractFileEngine::ReadGroupPerm
-	    | QAbstractFileEngine::ReadOwnerPerm | QAbstractFileEngine::ReadUserPerm
-	    | QAbstractFileEngine::WriteUserPerm | QAbstractFileEngine::WriteOwnerPerm
-	    | QAbstractFileEngine::WriteGroupPerm | QAbstractFileEngine::WriteOtherPerm;
+        //### what to do with permissions if we don't use NTFS
+        // for now just add all permissions and what about exe missions ??
+        // also qt_ntfs_permission_lookup is now not set by defualt ... should it ?
+            ret |= QAbstractFileEngine::ReadOtherPerm | QAbstractFileEngine::ReadGroupPerm
+            | QAbstractFileEngine::ReadOwnerPerm | QAbstractFileEngine::ReadUserPerm
+            | QAbstractFileEngine::WriteUserPerm | QAbstractFileEngine::WriteOwnerPerm
+            | QAbstractFileEngine::WriteGroupPerm | QAbstractFileEngine::WriteOtherPerm;
     }
 
     if (doStat()) {
@@ -1783,8 +1583,8 @@ QString QFSFileEngine::fileName(FileName file) const
 
         if (!isRelativePath()) {
 #if !defined(Q_OS_WINCE)
-            if (d->filePath.size() > 2 && d->filePath.at(1) == QLatin1Char(':')
-                && d->filePath.at(2) != QLatin1Char('/') || // It's a drive-relative path, so Z:a.txt -> Z:\currentpath\a.txt
+            if ((d->filePath.size() > 2 && d->filePath.at(1) == QLatin1Char(':')
+                && d->filePath.at(2) != QLatin1Char('/')) || // It's a drive-relative path, so Z:a.txt -> Z:\currentpath\a.txt
                 d->filePath.startsWith(QLatin1Char('/'))    // It's a absolute path to the current drive, so \a.txt -> Z:\a.txt
                 ) {
                 ret = QDir::fromNativeSeparators(nativeAbsoluteFilePath(d->filePath));
@@ -1911,13 +1711,9 @@ bool QFSFileEngine::setPermissions(uint perms)
         return false;
 
 #if !defined(Q_OS_WINCE)
-   QT_WA({
-        ret = ::_wchmod((TCHAR*)d->filePath.utf16(), mode) == 0;
-   } , {
-        ret = ::_chmod(d->filePath.toLocal8Bit(), mode) == 0;
-   });
+    ret = ::_wchmod((wchar_t*)d->filePath.utf16(), mode) == 0;
 #else
-    ret = ::_wchmod((TCHAR*)d->longFileName(d->filePath).utf16(), mode);
+    ret = ::_wchmod((wchar_t*)d->longFileName(d->filePath).utf16(), mode);
 #endif
    return ret;
 }
@@ -1960,34 +1756,33 @@ bool QFSFileEngine::setSize(qint64 size)
 static inline QDateTime fileTimeToQDateTime(const FILETIME *time)
 {
     QDateTime ret;
-    if (QSysInfo::WindowsVersion & QSysInfo::WV_DOS_based || QSysInfo::WindowsVersion & QSysInfo::WV_CE_based) {
-        // SystemTimeToTzSpecificLocalTime is not available on Win98/ME so we have to pull it off ourselves.
-        SYSTEMTIME systime;
-        FILETIME ftime;
-        systime.wYear = 1970;
-        systime.wMonth = 1;
-        systime.wDay = 1;
-        systime.wHour = 0;
-        systime.wMinute = 0;
-        systime.wSecond = 0;
-        systime.wMilliseconds = 0;
-        systime.wDayOfWeek = 4;
-        SystemTimeToFileTime(&systime, &ftime);
-        unsigned __int64 acttime = (unsigned __int64)time->dwHighDateTime << 32 | time->dwLowDateTime;
-        FileTimeToSystemTime(time, &systime);
-        unsigned __int64 time1970 = (unsigned __int64)ftime.dwHighDateTime << 32 | ftime.dwLowDateTime;
-        unsigned __int64 difftime = acttime - time1970;
-        difftime /= 10000000;
-        ret.setTime_t((unsigned int)difftime);
-    } else {
-#ifndef Q_OS_WINCE
-        SYSTEMTIME sTime, lTime;
-        FileTimeToSystemTime(time, &sTime);
-        SystemTimeToTzSpecificLocalTime(0, &sTime, &lTime);
-        ret.setDate(QDate(lTime.wYear, lTime.wMonth, lTime.wDay));
-        ret.setTime(QTime(lTime.wHour, lTime.wMinute, lTime.wSecond, lTime.wMilliseconds));
+
+#if defined(Q_OS_WINCE)
+    SYSTEMTIME systime;
+    FILETIME ftime;
+    systime.wYear = 1970;
+    systime.wMonth = 1;
+    systime.wDay = 1;
+    systime.wHour = 0;
+    systime.wMinute = 0;
+    systime.wSecond = 0;
+    systime.wMilliseconds = 0;
+    systime.wDayOfWeek = 4;
+    SystemTimeToFileTime(&systime, &ftime);
+    unsigned __int64 acttime = (unsigned __int64)time->dwHighDateTime << 32 | time->dwLowDateTime;
+    FileTimeToSystemTime(time, &systime);
+    unsigned __int64 time1970 = (unsigned __int64)ftime.dwHighDateTime << 32 | ftime.dwLowDateTime;
+    unsigned __int64 difftime = acttime - time1970;
+    difftime /= 10000000;
+    ret.setTime_t((unsigned int)difftime);
+#else
+    SYSTEMTIME sTime, lTime;
+    FileTimeToSystemTime(time, &sTime);
+    SystemTimeToTzSpecificLocalTime(0, &sTime, &lTime);
+    ret.setDate(QDate(lTime.wYear, lTime.wMonth, lTime.wDay));
+    ret.setTime(QTime(lTime.wHour, lTime.wMinute, lTime.wSecond, lTime.wMilliseconds));
 #endif
-    }
+
     return ret;
 }
 
@@ -2011,13 +1806,32 @@ QDateTime QFSFileEngine::fileTime(FileTime time) const
         }
 #endif
     } else {
-        bool ok = false;
         WIN32_FILE_ATTRIBUTE_DATA attribData;
-        QT_WA({
-            ok = ::GetFileAttributesExW((TCHAR*)QFSFileEnginePrivate::longFileName(d->filePath).utf16(), GetFileExInfoStandard, &attribData);
-        } , {
-            ok = ::GetFileAttributesExA(QFSFileEnginePrivate::win95Name(QFileInfo(d->filePath).absoluteFilePath()), GetFileExInfoStandard, &attribData);
-        });
+        bool ok = ::GetFileAttributesEx((wchar_t*)QFSFileEnginePrivate::longFileName(d->filePath).utf16(), GetFileExInfoStandard, &attribData);
+        if (!ok) {
+            int errorCode = GetLastError();
+            if (errorCode != ERROR_INVALID_NAME
+                && errorCode != ERROR_FILE_NOT_FOUND && errorCode != ERROR_PATH_NOT_FOUND) {
+                QString path = QDir::toNativeSeparators(d->filePath);
+                // path for the FindFirstFile should not end with a trailing slash
+                while (path.endsWith(QLatin1Char('\\')))
+                    path.chop(1);
+
+                // FindFirstFile can not handle drives
+                if (!path.endsWith(QLatin1Char(':'))) {
+                    WIN32_FIND_DATA findData;
+                    HANDLE hFind = ::FindFirstFile((wchar_t*)QFSFileEnginePrivate::longFileName(path).utf16(),
+                                                   &findData);
+                    if (hFind != INVALID_HANDLE_VALUE) {
+                        ::FindClose(hFind);
+                        ok = true;
+                        attribData.ftCreationTime = findData.ftCreationTime;
+                        attribData.ftLastWriteTime = findData.ftLastWriteTime;
+                        attribData.ftLastAccessTime = findData.ftLastAccessTime;
+                    }
+                }
+            }
+        }
         if (ok) {
             if(time == CreationTime)
                 ret = fileTimeToQDateTime(&attribData.ftCreationTime);
@@ -2037,11 +1851,11 @@ uchar *QFSFileEnginePrivate::map(qint64 offset, qint64 size,
     Q_UNUSED(flags);
     if (openMode == QFile::NotOpen) {
         q->setError(QFile::PermissionsError, qt_error_string());
-	return 0;
+        return 0;
     }
     if (offset == 0 && size == 0) {
         q->setError(QFile::UnspecifiedError, qt_error_string());
-	return 0;
+        return 0;
     }
 
 
@@ -2054,7 +1868,7 @@ uchar *QFSFileEnginePrivate::map(qint64 offset, qint64 size,
     #ifdef Q_USE_DEPRECATED_MAP_API
     nativeClose();
     if (fileMapHandle == INVALID_HANDLE_VALUE) {
-        fileMapHandle = CreateFileForMappingW((TCHAR *)nativeFilePath.constData(),
+        fileMapHandle = CreateFileForMapping((const wchar_t*)nativeFilePath.constData(),
                 GENERIC_READ | (openMode & QIODevice::WriteOnly ? GENERIC_WRITE : 0),
                 0,
                 NULL,
@@ -2069,21 +1883,14 @@ uchar *QFSFileEnginePrivate::map(qint64 offset, qint64 size,
 #endif
 
     // first create the file mapping handle
-    HANDLE mapHandle = 0;
     DWORD protection = (openMode & QIODevice::WriteOnly) ? PAGE_READWRITE : PAGE_READONLY;
-    QT_WA({
-    mapHandle = ::CreateFileMappingW(handle, 0, protection,
-             0, 0, 0);
-    },{
-    mapHandle = ::CreateFileMappingA(handle, 0, protection,
-             0, 0, 0);
-    });
+    HANDLE mapHandle = ::CreateFileMapping(handle, 0, protection, 0, 0, 0);
     if (mapHandle == NULL) {
         q->setError(QFile::PermissionsError, qt_error_string());
 #ifdef Q_USE_DEPRECATED_MAP_API
         mapHandleClose();
 #endif
-	return 0;
+        return 0;
     }
 
     // setup args to map
@@ -2112,7 +1919,7 @@ uchar *QFSFileEnginePrivate::map(qint64 offset, qint64 size,
     switch(GetLastError()) {
     case ERROR_ACCESS_DENIED:
         q->setError(QFile::PermissionsError, qt_error_string());
-	break;
+        break;
     case ERROR_INVALID_PARAMETER:
         // size are out of bounds
     default:
diff --git a/src/corelib/io/qprocess_unix.cpp b/src/corelib/io/qprocess_unix.cpp
index 49869a4..fafce07 100644
--- a/src/corelib/io/qprocess_unix.cpp
+++ b/src/corelib/io/qprocess_unix.cpp
@@ -84,6 +84,7 @@ QT_END_NAMESPACE
 
 #include "qprocess.h"
 #include "qprocess_p.h"
+#include "private/qcore_unix_p.h"
 
 #ifdef Q_OS_MAC
 #include <private/qcore_mac_p.h>
@@ -114,78 +115,11 @@ static inline char *strdup(const char *data)
 }
 #endif
 
-static qint64 qt_native_read(int fd, char *data, qint64 maxlen)
-{
-    qint64 ret = 0;
-    do {
-        ret = ::read(fd, data, maxlen);
-    } while (ret == -1 && errno == EINTR);
-    return ret;
-}
-
-static qint64 qt_native_write(int fd, const char *data, qint64 len)
-{
-    qint64 ret = 0;
-    do {
-        ret = ::write(fd, data, len);
-    } while (ret == -1 && errno == EINTR);
-    return ret;
-}
-
-static void qt_native_close(int fd)
-{
-    int ret;
-    do {
-        ret = ::close(fd);
-    } while (ret == -1 && errno == EINTR);
-}
-
-static void qt_native_dup2(int oldfd, int newfd)
-{
-    int ret;
-    do {
-        ret = ::dup2(oldfd, newfd);
-    } while (ret == -1 && errno == EINTR);
-}
-
-static void qt_native_chdir(const char *path)
-{
-    int ret;
-    do {
-        ret = ::chdir(path);
-    } while (ret == -1 && errno == EINTR);
-}
-
-static void qt_native_execve(const char *filename, char *const argv[],
-                              char *const envp[])
-{
-    int ret;
-    do {
-        ret = ::execve(filename, argv, envp);
-    } while (ret == -1 && errno == EINTR);
-}
-
-static void qt_native_execv(const char *path, char *const argv[])
-{
-    int ret;
-    do {
-        ret = ::execv(path, argv);
-    } while (ret == -1 && errno == EINTR);
-}
-
-static void qt_native_execvp(const char *file, char *const argv[])
-{
-    int ret;
-    do {
-        ret = ::execvp(file, argv);
-    } while (ret == -1 && errno == EINTR);
-}
-
 static int qt_qprocess_deadChild_pipe[2];
 static void (*qt_sa_old_sigchld_handler)(int) = 0;
 static void qt_sa_sigchld_handler(int signum)
 {
-    qt_native_write(qt_qprocess_deadChild_pipe[1], "", 1);
+    qt_safe_write(qt_qprocess_deadChild_pipe[1], "", 1);
 #if defined (QPROCESS_DEBUG)
     fprintf(stderr, "*** SIGCHLD\n");
 #endif
@@ -194,6 +128,13 @@ static void qt_sa_sigchld_handler(int signum)
         qt_sa_old_sigchld_handler(signum);
 }
 
+static inline void add_fd(int &nfds, int fd, fd_set *fdset)
+{
+    FD_SET(fd, fdset);
+    if ((fd) > nfds)
+        nfds = fd;
+}
+
 struct QProcessInfo {
     QProcess *process;
     int deathPipe;
@@ -231,13 +172,7 @@ QProcessManager::QProcessManager()
     // initialize the dead child pipe and make it non-blocking. in the
     // extremely unlikely event that the pipe fills up, we do not under any
     // circumstances want to block.
-    ::pipe(qt_qprocess_deadChild_pipe);
-    ::fcntl(qt_qprocess_deadChild_pipe[0], F_SETFD, FD_CLOEXEC);
-    ::fcntl(qt_qprocess_deadChild_pipe[1], F_SETFD, FD_CLOEXEC);
-    ::fcntl(qt_qprocess_deadChild_pipe[0], F_SETFL,
-	    ::fcntl(qt_qprocess_deadChild_pipe[0], F_GETFL) | O_NONBLOCK);
-    ::fcntl(qt_qprocess_deadChild_pipe[1], F_SETFL,
-	    ::fcntl(qt_qprocess_deadChild_pipe[1], F_GETFL) | O_NONBLOCK);
+    qt_safe_pipe(qt_qprocess_deadChild_pipe, O_NONBLOCK);
 
     // set up the SIGCHLD handler, which writes a single byte to the dead
     // child pipe every time a child dies.
@@ -254,13 +189,13 @@ QProcessManager::QProcessManager()
 QProcessManager::~QProcessManager()
 {
     // notify the thread that we're shutting down.
-    qt_native_write(qt_qprocess_deadChild_pipe[1], "@", 1);
-    qt_native_close(qt_qprocess_deadChild_pipe[1]);
+    qt_safe_write(qt_qprocess_deadChild_pipe[1], "@", 1);
+    qt_safe_close(qt_qprocess_deadChild_pipe[1]);
     wait();
 
     // on certain unixes, closing the reading end of the pipe will cause
     // select in run() to block forever, rather than return with EBADF.
-    qt_native_close(qt_qprocess_deadChild_pipe[0]);
+    qt_safe_close(qt_qprocess_deadChild_pipe[0]);
 
     qt_qprocess_deadChild_pipe[0] = -1;
     qt_qprocess_deadChild_pipe[1] = -1;
@@ -304,7 +239,7 @@ void QProcessManager::run()
         // signals may have been delivered in the meantime, to avoid race
         // conditions.
         char c;
-        if (qt_native_read(qt_qprocess_deadChild_pipe[0], &c, 1) < 0 || c == '@')
+        if (qt_safe_read(qt_qprocess_deadChild_pipe[0], &c, 1) < 0 || c == '@')
             break;
 
         // catch any and all children that we can.
@@ -323,7 +258,7 @@ void QProcessManager::catchDeadChildren()
         // notify all children that they may have died. they need to run
         // waitpid() in their own thread.
         QProcessInfo *info = it.value();
-        qt_native_write(info->deathPipe, "", 1);
+        qt_safe_write(info->deathPipe, "", 1);
 
 #if defined (QPROCESS_DEBUG)
         qDebug() << "QProcessManager::run() sending death notice to" << info->process;
@@ -382,25 +317,23 @@ void QProcessManager::unlock()
 static void qt_create_pipe(int *pipe)
 {
     if (pipe[0] != -1)
-        qt_native_close(pipe[0]);
+        qt_safe_close(pipe[0]);
     if (pipe[1] != -1)
-        qt_native_close(pipe[1]);
-    if (::pipe(pipe) != 0) {
+        qt_safe_close(pipe[1]);
+    if (qt_safe_pipe(pipe) != 0) {
         qWarning("QProcessPrivate::createPipe: Cannot create pipe %p: %s",
                  pipe, qPrintable(qt_error_string(errno)));
     }
-    ::fcntl(pipe[0], F_SETFD, FD_CLOEXEC);
-    ::fcntl(pipe[1], F_SETFD, FD_CLOEXEC);
 }
 
 void QProcessPrivate::destroyPipe(int *pipe)
 {
     if (pipe[1] != -1) {
-        qt_native_close(pipe[1]);
+        qt_safe_close(pipe[1]);
         pipe[1] = -1;
     }
     if (pipe[0] != -1) {
-        qt_native_close(pipe[0]);
+        qt_safe_close(pipe[0]);
         pipe[0] = -1;
     }
 }
@@ -453,7 +386,7 @@ bool QProcessPrivate::createChannel(Channel &channel)
         if (&channel == &stdinChannel) {
             // try to open in read-only mode
             channel.pipe[1] = -1;
-            if ( (channel.pipe[0] = QT_OPEN(fname, O_RDONLY)) != -1)
+            if ( (channel.pipe[0] = qt_safe_open(fname, O_RDONLY)) != -1)
                 return true;    // success
 
             q->setErrorString(QProcess::tr("Could not open input redirection for reading"));
@@ -465,7 +398,7 @@ bool QProcessPrivate::createChannel(Channel &channel)
                 mode |= O_TRUNC;
 
             channel.pipe[0] = -1;
-            if ( (channel.pipe[1] = QT_OPEN(fname, mode, 0666)) != -1)
+            if ( (channel.pipe[1] = qt_safe_open(fname, mode, 0666)) != -1)
                 return true; // success
 
             q->setErrorString(QProcess::tr("Could not open output redirection for writing"));
@@ -586,8 +519,6 @@ void QProcessPrivate::startProcess()
         return;
     qt_create_pipe(childStartedPipe);
     qt_create_pipe(deathPipe);
-    ::fcntl(deathPipe[0], F_SETFD, FD_CLOEXEC);
-    ::fcntl(deathPipe[1], F_SETFD, FD_CLOEXEC);
 
     if (threadData->eventDispatcher) {
         startupSocketNotifier = new QSocketNotifier(childStartedPipe[0],
@@ -728,11 +659,11 @@ 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);
-    qt_native_close(childStartedPipe[1]);
+    qt_safe_close(childStartedPipe[1]);
     childStartedPipe[1] = -1;
 
     if (stdinChannel.pipe[0] != -1) {
-        qt_native_close(stdinChannel.pipe[0]);
+        qt_safe_close(stdinChannel.pipe[0]);
         stdinChannel.pipe[0] = -1;
     }
 
@@ -740,7 +671,7 @@ void QProcessPrivate::startProcess()
         ::fcntl(stdinChannel.pipe[1], F_SETFL, ::fcntl(stdinChannel.pipe[1], F_GETFL) | O_NONBLOCK);
 
     if (stdoutChannel.pipe[1] != -1) {
-        qt_native_close(stdoutChannel.pipe[1]);
+        qt_safe_close(stdoutChannel.pipe[1]);
         stdoutChannel.pipe[1] = -1;
     }
 
@@ -748,7 +679,7 @@ void QProcessPrivate::startProcess()
         ::fcntl(stdoutChannel.pipe[0], F_SETFL, ::fcntl(stdoutChannel.pipe[0], F_GETFL) | O_NONBLOCK);
 
     if (stderrChannel.pipe[1] != -1) {
-        qt_native_close(stderrChannel.pipe[1]);
+        qt_safe_close(stderrChannel.pipe[1]);
         stderrChannel.pipe[1] = -1;
     }
     if (stderrChannel.pipe[0] != -1)
@@ -761,35 +692,34 @@ void QProcessPrivate::execChild(const char *workingDir, char **path, char **argv
 
     Q_Q(QProcess);
 
-    // copy the stdin socket
-    qt_native_dup2(stdinChannel.pipe[0], fileno(stdin));
+    // copy the stdin socket (without closing on exec)
+    qt_safe_dup2(stdinChannel.pipe[0], fileno(stdin), 0);
 
     // copy the stdout and stderr if asked to
     if (processChannelMode != QProcess::ForwardedChannels) {
-        qt_native_dup2(stdoutChannel.pipe[1], fileno(stdout));
+        qt_safe_dup2(stdoutChannel.pipe[1], fileno(stdout), 0);
 
         // merge stdout and stderr if asked to
         if (processChannelMode == QProcess::MergedChannels) {
-            qt_native_dup2(fileno(stdout), fileno(stderr));
+            qt_safe_dup2(fileno(stdout), fileno(stderr), 0);
         } else {
-            qt_native_dup2(stderrChannel.pipe[1], fileno(stderr));
+            qt_safe_dup2(stderrChannel.pipe[1], fileno(stderr), 0);
         }
     }
 
     // make sure this fd is closed if execvp() succeeds
-    qt_native_close(childStartedPipe[0]);
-    ::fcntl(childStartedPipe[1], F_SETFD, FD_CLOEXEC);
+    qt_safe_close(childStartedPipe[0]);
 
     // enter the working directory
     if (workingDir)
-        qt_native_chdir(workingDir);
+        QT_CHDIR(workingDir);
 
     // this is a virtual call, and it base behavior is to do nothing.
     q->setupChildProcess();
 
     // execute the process
     if (!envp) {
-        qt_native_execvp(argv[0], argv);
+        qt_safe_execvp(argv[0], argv);
     } else {
         if (path) {
             char **arg = path;
@@ -798,14 +728,14 @@ void QProcessPrivate::execChild(const char *workingDir, char **path, char **argv
 #if defined (QPROCESS_DEBUG)
                 fprintf(stderr, "QProcessPrivate::execChild() searching / starting %s\n", argv[0]);
 #endif
-                qt_native_execve(argv[0], argv, envp);
+                qt_safe_execve(argv[0], argv, envp);
                 ++arg;
             }
         } else {
 #if defined (QPROCESS_DEBUG)
             fprintf(stderr, "QProcessPrivate::execChild() starting %s\n", argv[0]);
 #endif
-            qt_native_execve(argv[0], argv, envp);
+            qt_safe_execve(argv[0], argv, envp);
         }
     }
 
@@ -813,21 +743,21 @@ void QProcessPrivate::execChild(const char *workingDir, char **path, char **argv
 #if defined (QPROCESS_DEBUG)
     fprintf(stderr, "QProcessPrivate::execChild() failed, notifying parent process\n");
 #endif
-    qt_native_write(childStartedPipe[1], "", 1);
-    qt_native_close(childStartedPipe[1]);
+    qt_safe_write(childStartedPipe[1], "", 1);
+    qt_safe_close(childStartedPipe[1]);
     childStartedPipe[1] = -1;
 }
 
 bool QProcessPrivate::processStarted()
 {
     char c;
-    int i = qt_native_read(childStartedPipe[0], &c, 1);
+    int i = qt_safe_read(childStartedPipe[0], &c, 1);
     if (startupSocketNotifier) {
         startupSocketNotifier->setEnabled(false);
         startupSocketNotifier->deleteLater();
         startupSocketNotifier = 0;
     }
-    qt_native_close(childStartedPipe[0]);
+    qt_safe_close(childStartedPipe[0]);
     childStartedPipe[0] = -1;
 
 #if defined (QPROCESS_DEBUG)
@@ -862,7 +792,7 @@ qint64 QProcessPrivate::bytesAvailableFromStderr() const
 
 qint64 QProcessPrivate::readFromStdout(char *data, qint64 maxlen)
 {
-    qint64 bytesRead = qt_native_read(stdoutChannel.pipe[0], data, maxlen);
+    qint64 bytesRead = qt_safe_read(stdoutChannel.pipe[0], data, maxlen);
 #if defined QPROCESS_DEBUG
     qDebug("QProcessPrivate::readFromStdout(%p \"%s\", %lld) == %lld",
            data, qt_prettyDebug(data, bytesRead, 16).constData(), maxlen, bytesRead);
@@ -872,7 +802,7 @@ qint64 QProcessPrivate::readFromStdout(char *data, qint64 maxlen)
 
 qint64 QProcessPrivate::readFromStderr(char *data, qint64 maxlen)
 {
-    qint64 bytesRead = qt_native_read(stderrChannel.pipe[0], data, maxlen);
+    qint64 bytesRead = qt_safe_read(stderrChannel.pipe[0], data, maxlen);
 #if defined QPROCESS_DEBUG
     qDebug("QProcessPrivate::readFromStderr(%p \"%s\", %lld) == %lld",
            data, qt_prettyDebug(data, bytesRead, 16).constData(), maxlen, bytesRead);
@@ -896,7 +826,7 @@ qint64 QProcessPrivate::writeToStdin(const char *data, qint64 maxlen)
 {
     qt_ignore_sigpipe();
 
-    qint64 written = qt_native_write(stdinChannel.pipe[1], data, maxlen);
+    qint64 written = qt_safe_write(stdinChannel.pipe[1], data, maxlen);
 #if defined QPROCESS_DEBUG
     qDebug("QProcessPrivate::writeToStdin(%p \"%s\", %lld) == %lld",
            data, qt_prettyDebug(data, maxlen, 16).constData(), maxlen, written);
@@ -922,17 +852,15 @@ void QProcessPrivate::killProcess()
         ::kill(pid_t(pid), SIGKILL);
 }
 
-static int qt_native_select(fd_set *fdread, fd_set *fdwrite, int timeout)
+static int select_msecs(int nfds, fd_set *fdread, fd_set *fdwrite, int timeout)
 {
+    if (timeout < 0)
+        return qt_safe_select(nfds, fdread, fdwrite, 0, 0);
+
     struct timeval tv;
     tv.tv_sec = timeout / 1000;
     tv.tv_usec = (timeout % 1000) * 1000;
-
-    int ret;
-    do {
-        ret = select(FD_SETSIZE, fdread, fdwrite, 0, timeout < 0 ? 0 : &tv);
-    } while (ret < 0 && (errno == EINTR));
-    return ret;
+    return qt_safe_select(nfds, fdread, fdwrite, 0, &tv);
 }
 
 /*
@@ -960,11 +888,7 @@ bool QProcessPrivate::waitForStarted(int msecs)
     fd_set fds;
     FD_ZERO(&fds);
     FD_SET(childStartedPipe[0], &fds);
-    int ret;
-    do {
-        ret = qt_native_select(&fds, 0, msecs);
-    } while (ret < 0 && errno == EINTR);
-    if (ret == 0) {
+    if (select_msecs(childStartedPipe[0] + 1, &fds, 0, msecs) == 0) {
         processError = QProcess::Timedout;
         q->setErrorString(QProcess::tr("Process operation timed out"));
 #if defined (QPROCESS_DEBUG)
@@ -997,24 +921,23 @@ bool QProcessPrivate::waitForReadyRead(int msecs)
         FD_ZERO(&fdread);
         FD_ZERO(&fdwrite);
 
+        int nfds = deathPipe[0];
+        FD_SET(deathPipe[0], &fdread);
+
         if (processState == QProcess::Starting)
-            FD_SET(childStartedPipe[0], &fdread);
+            add_fd(nfds, childStartedPipe[0], &fdread);
 
         if (stdoutChannel.pipe[0] != -1)
-            FD_SET(stdoutChannel.pipe[0], &fdread);
+            add_fd(nfds, stdoutChannel.pipe[0], &fdread);
         if (stderrChannel.pipe[0] != -1)
-            FD_SET(stderrChannel.pipe[0], &fdread);
-
-        FD_SET(deathPipe[0], &fdread);
+            add_fd(nfds, stderrChannel.pipe[0], &fdread);
 
         if (!writeBuffer.isEmpty() && stdinChannel.pipe[1] != -1)
-            FD_SET(stdinChannel.pipe[1], &fdwrite);
+            add_fd(nfds, stdinChannel.pipe[1], &fdwrite);
 
         int timeout = qt_timeout_value(msecs, stopWatch.elapsed());
-        int ret = qt_native_select(&fdread, &fdwrite, timeout);
+        int ret = select_msecs(nfds + 1, &fdread, &fdwrite, timeout);
         if (ret < 0) {
-            if (errno == EINTR)
-                continue;
             break;
         }
         if (ret == 0) {
@@ -1070,24 +993,24 @@ bool QProcessPrivate::waitForBytesWritten(int msecs)
         FD_ZERO(&fdread);
         FD_ZERO(&fdwrite);
 
+        int nfds = deathPipe[0];
+        FD_SET(deathPipe[0], &fdread);
+
         if (processState == QProcess::Starting)
-            FD_SET(childStartedPipe[0], &fdread);
+            add_fd(nfds, childStartedPipe[0], &fdread);
 
         if (stdoutChannel.pipe[0] != -1)
-            FD_SET(stdoutChannel.pipe[0], &fdread);
+            add_fd(nfds, stdoutChannel.pipe[0], &fdread);
         if (stderrChannel.pipe[0] != -1)
-            FD_SET(stderrChannel.pipe[0], &fdread);
+            add_fd(nfds, stderrChannel.pipe[0], &fdread);
 
-        FD_SET(deathPipe[0], &fdread);
 
         if (!writeBuffer.isEmpty() && stdinChannel.pipe[1] != -1)
-            FD_SET(stdinChannel.pipe[1], &fdwrite);
+            add_fd(nfds, stdinChannel.pipe[1], &fdwrite);
 
 	int timeout = qt_timeout_value(msecs, stopWatch.elapsed());
-	int ret = qt_native_select(&fdread, &fdwrite, timeout);
+	int ret = select_msecs(nfds + 1, &fdread, &fdwrite, timeout);
         if (ret < 0) {
-            if (errno == EINTR)
-                continue;
             break;
         }
 
@@ -1133,29 +1056,28 @@ bool QProcessPrivate::waitForFinished(int msecs)
     forever {
         fd_set fdread;
         fd_set fdwrite;
+        int nfds = -1;
 
         FD_ZERO(&fdread);
         FD_ZERO(&fdwrite);
 
         if (processState == QProcess::Starting)
-            FD_SET(childStartedPipe[0], &fdread);
+            add_fd(nfds, childStartedPipe[0], &fdread);
 
         if (stdoutChannel.pipe[0] != -1)
-            FD_SET(stdoutChannel.pipe[0], &fdread);
+            add_fd(nfds, stdoutChannel.pipe[0], &fdread);
         if (stderrChannel.pipe[0] != -1)
-            FD_SET(stderrChannel.pipe[0], &fdread);
+            add_fd(nfds, stderrChannel.pipe[0], &fdread);
 
         if (processState == QProcess::Running)
-            FD_SET(deathPipe[0], &fdread);
+            add_fd(nfds, deathPipe[0], &fdread);
 
         if (!writeBuffer.isEmpty() && stdinChannel.pipe[1] != -1)
-            FD_SET(stdinChannel.pipe[1], &fdwrite);
+            add_fd(nfds, stdinChannel.pipe[1], &fdwrite);
 
 	int timeout = qt_timeout_value(msecs, stopWatch.elapsed());
-	int ret = qt_native_select(&fdread, &fdwrite, timeout);
+	int ret = select_msecs(nfds + 1, &fdread, &fdwrite, timeout);
         if (ret < 0) {
-            if (errno == EINTR)
-                continue;
             break;
         }
 	if (ret == 0) {
@@ -1190,12 +1112,7 @@ bool QProcessPrivate::waitForWrite(int msecs)
     fd_set fdwrite;
     FD_ZERO(&fdwrite);
     FD_SET(stdinChannel.pipe[1], &fdwrite);
-
-    int ret;
-    do {
-        ret = qt_native_select(0, &fdwrite, msecs < 0 ? 0 : msecs) == 1;
-    } while (ret < 0 && errno == EINTR);
-    return ret == 1;
+    return select_msecs(stdinChannel.pipe[1] + 1, 0, &fdwrite, msecs < 0 ? 0 : msecs) == 1;
 }
 
 void QProcessPrivate::findExitCode()
@@ -1210,15 +1127,11 @@ bool QProcessPrivate::waitForDeadChild()
 
     // read a byte from the death pipe
     char c;
-    qt_native_read(deathPipe[0], &c, 1);
+    qt_safe_read(deathPipe[0], &c, 1);
 
     // check if our process is dead
     int exitStatus;
-    pid_t waitResult = 0;
-    do {
-        waitResult = waitpid(pid_t(pid), &exitStatus, WNOHANG);
-    } while ((waitResult == -1 && errno == EINTR));
-    if (waitResult > 0) {
+    if (qt_safe_waitpid(pid_t(pid), &exitStatus, WNOHANG) > 0) {
         processManager()->remove(q);
         crashed = !WIFEXITED(exitStatus);
         exitCode = WEXITSTATUS(exitStatus);
@@ -1262,16 +1175,15 @@ bool QProcessPrivate::startDetached(const QString &program, const QStringList &a
 
         ::setsid();
 
-        qt_native_close(startedPipe[0]);
-        qt_native_close(pidPipe[0]);
+        qt_safe_close(startedPipe[0]);
+        qt_safe_close(pidPipe[0]);
 
         pid_t doubleForkPid = qt_fork();
         if (doubleForkPid == 0) {
-            ::fcntl(startedPipe[1], F_SETFD, FD_CLOEXEC);
-            qt_native_close(pidPipe[1]);
+            qt_safe_close(pidPipe[1]);
 
             if (!encodedWorkingDirectory.isEmpty())
-                qt_native_chdir(encodedWorkingDirectory.constData());
+                QT_CHDIR(encodedWorkingDirectory.constData());
 
             char **argv = new char *[arguments.size() + 2];
             for (int i = 0; i < arguments.size(); ++i) {
@@ -1292,13 +1204,13 @@ bool QProcessPrivate::startDetached(const QString &program, const QStringList &a
                         if (!tmp.endsWith('/')) tmp += '/';
                         tmp += QFile::encodeName(program);
                         argv[0] = tmp.data();
-                        qt_native_execv(argv[0], argv);
+                        qt_safe_execv(argv[0], argv);
                     }
                 }
             } else {
                 QByteArray tmp = QFile::encodeName(program);
                 argv[0] = tmp.data();
-                qt_native_execv(argv[0], argv);
+                qt_safe_execv(argv[0], argv);
             }
 
             struct sigaction noaction;
@@ -1308,8 +1220,8 @@ bool QProcessPrivate::startDetached(const QString &program, const QStringList &a
 
             // '\1' means execv failed
             char c = '\1';
-            qt_native_write(startedPipe[1], &c, 1);
-            qt_native_close(startedPipe[1]);
+            qt_safe_write(startedPipe[1], &c, 1);
+            qt_safe_close(startedPipe[1]);
             ::_exit(1);
         } else if (doubleForkPid == -1) {
             struct sigaction noaction;
@@ -1319,40 +1231,39 @@ bool QProcessPrivate::startDetached(const QString &program, const QStringList &a
 
             // '\2' means internal error
             char c = '\2';
-            qt_native_write(startedPipe[1], &c, 1);
+            qt_safe_write(startedPipe[1], &c, 1);
         }
 
-        qt_native_close(startedPipe[1]);
-        qt_native_write(pidPipe[1], (const char *)&doubleForkPid, sizeof(pid_t));
-        qt_native_chdir("/");
+        qt_safe_close(startedPipe[1]);
+        qt_safe_write(pidPipe[1], (const char *)&doubleForkPid, sizeof(pid_t));
+        QT_CHDIR("/");
         ::_exit(1);
     }
 
-    qt_native_close(startedPipe[1]);
-    qt_native_close(pidPipe[1]);
+    qt_safe_close(startedPipe[1]);
+    qt_safe_close(pidPipe[1]);
 
     if (childPid == -1) {
-        qt_native_close(startedPipe[0]);
-        qt_native_close(pidPipe[0]);
+        qt_safe_close(startedPipe[0]);
+        qt_safe_close(pidPipe[0]);
         return false;
     }
 
     char reply = '\0';
-    int startResult = qt_native_read(startedPipe[0], &reply, 1);
+    int startResult = qt_safe_read(startedPipe[0], &reply, 1);
     int result;
-    qt_native_close(startedPipe[0]);
-    while (::waitpid(childPid, &result, 0) == -1 && errno == EINTR)
-    { }
+    qt_safe_close(startedPipe[0]);
+    qt_safe_waitpid(childPid, &result, 0);
     bool success = (startResult != -1 && reply == '\0');
     if (success && pid) {
         pid_t actualPid = 0;
-        if (qt_native_read(pidPipe[0], (char *)&actualPid, sizeof(pid_t)) == sizeof(pid_t)) {
+        if (qt_safe_read(pidPipe[0], (char *)&actualPid, sizeof(pid_t)) == sizeof(pid_t)) {
             *pid = actualPid;
         } else {
             *pid = 0;
         }
     }
-    qt_native_close(pidPipe[0]);
+    qt_safe_close(pidPipe[0]);
     return success;
 }
 
diff --git a/src/corelib/io/qprocess_win.cpp b/src/corelib/io/qprocess_win.cpp
index d028df1..eae17b4 100644
--- a/src/corelib/io/qprocess_win.cpp
+++ b/src/corelib/io/qprocess_win.cpp
@@ -54,7 +54,7 @@
 #include <private/qthread_p.h>
 #include <qdebug.h>
 
-#include "private/qfsfileengine_p.h" // for longFileName and win95FileName
+#include "private/qfsfileengine_p.h" // for longFileName
 
 
 #ifndef QT_NO_PROCESS
@@ -122,25 +122,15 @@ bool QProcessPrivate::createChannel(Channel &channel)
         if (&channel == &stdinChannel) {
             // try to open in read-only mode
             channel.pipe[1] = INVALID_Q_PIPE;
-            QT_WA({
-                channel.pipe[0] =
-                    CreateFileW((TCHAR*)QFSFileEnginePrivate::longFileName(channel.file).utf16(),
-                                GENERIC_READ,
-                                FILE_SHARE_READ | FILE_SHARE_WRITE,
-                                &secAtt,
-                                OPEN_EXISTING,
-                                FILE_ATTRIBUTE_NORMAL,
-                                NULL);
-            }, {
-                channel.pipe[0] =
-                    CreateFileA(QFSFileEnginePrivate::win95Name(channel.file),
-                                GENERIC_READ,
-                                FILE_SHARE_READ | FILE_SHARE_WRITE,
-                                &secAtt,
-                                OPEN_EXISTING,
-                                FILE_ATTRIBUTE_NORMAL,
-                                NULL);
-            });
+            channel.pipe[0] =
+                CreateFile((const wchar_t*)QFSFileEnginePrivate::longFileName(channel.file).utf16(),
+                           GENERIC_READ,
+                           FILE_SHARE_READ | FILE_SHARE_WRITE,
+                           &secAtt,
+                           OPEN_EXISTING,
+                           FILE_ATTRIBUTE_NORMAL,
+                           NULL);
+
             if (channel.pipe[0] != INVALID_Q_PIPE)
                 return true;
 
@@ -148,31 +138,15 @@ bool QProcessPrivate::createChannel(Channel &channel)
         } else {
             // open in write mode
             channel.pipe[0] = INVALID_Q_PIPE;
-            DWORD creation;
-            if (channel.append)
-                creation = OPEN_ALWAYS;
-            else
-                creation = CREATE_ALWAYS;
-
-            QT_WA({
-                channel.pipe[1] =
-                    CreateFileW((TCHAR*)QFSFileEnginePrivate::longFileName(channel.file).utf16(),
-                                GENERIC_WRITE,
-                                FILE_SHARE_READ | FILE_SHARE_WRITE,
-                                &secAtt,
-                                creation,
-                                FILE_ATTRIBUTE_NORMAL,
-                                NULL);
-            }, {
-                channel.pipe[1] =
-                    CreateFileA(QFSFileEnginePrivate::win95Name(channel.file),
-                                GENERIC_WRITE,
-                                FILE_SHARE_READ | FILE_SHARE_WRITE,
-                                &secAtt,
-                                creation,
-                                FILE_ATTRIBUTE_NORMAL,
-                                NULL);
-            });
+            channel.pipe[1] =
+                CreateFile((const wchar_t *)QFSFileEnginePrivate::longFileName(channel.file).utf16(),
+                           GENERIC_WRITE,
+                           FILE_SHARE_READ | FILE_SHARE_WRITE,
+                           &secAtt,
+                           channel.append ? OPEN_ALWAYS : CREATE_ALWAYS,
+                           FILE_ATTRIBUTE_NORMAL,
+                           NULL);
+
             if (channel.pipe[1] != INVALID_Q_PIPE) {
                 if (channel.append) {
                     SetFilePointer(channel.pipe[1], 0, NULL, FILE_END);
@@ -327,56 +301,37 @@ static QByteArray qt_create_environment(const QHash<QString, QString> *environme
         int pos = 0;
         QHash<QString, QString>::ConstIterator it = copy.constBegin(),
                                               end = copy.constEnd();
-#ifdef UNICODE
-        if (!(QSysInfo::WindowsVersion & QSysInfo::WV_DOS_based)) {
-            static const TCHAR equal = L'=';
-            static const TCHAR nul = L'\0';
-
-            for ( ; it != end; ++it) {
-                uint tmpSize = sizeof(TCHAR) * (it.key().length() + it.value().length() + 2);
-                // ignore empty strings
-                if (tmpSize == sizeof(TCHAR)*2)
-                    continue;
-                envlist.resize(envlist.size() + tmpSize);
-
-                tmpSize = it.key().length() * sizeof(TCHAR);
-                memcpy(envlist.data()+pos, it.key().utf16(), tmpSize);
-                pos += tmpSize;
-
-                memcpy(envlist.data()+pos, &equal, sizeof(TCHAR));
-                pos += sizeof(TCHAR);
-
-                tmpSize = it.value().length() * sizeof(TCHAR);
-                memcpy(envlist.data()+pos, it.value().utf16(), tmpSize);
-                pos += tmpSize;
-
-                memcpy(envlist.data()+pos, &nul, sizeof(TCHAR));
-                pos += sizeof(TCHAR);
-            }
-            // add the 2 terminating 0 (actually 4, just to be on the safe side)
-            envlist.resize( envlist.size()+4 );
-            envlist[pos++] = 0;
-            envlist[pos++] = 0;
-            envlist[pos++] = 0;
-            envlist[pos++] = 0;
-        } else
-#endif // UNICODE
-        {
-            for ( ; it != end; it++) {
-                QByteArray tmp = it.key().toLocal8Bit();
-                tmp.append('=');
-                tmp.append(it.value().toLocal8Bit());
-
-                uint tmpSize = tmp.length() + 1;
-                envlist.resize(envlist.size() + tmpSize);
-                memcpy(envlist.data()+pos, tmp.data(), tmpSize);
-                pos += tmpSize;
-            }
-            // add the terminating 0 (actually 2, just to be on the safe side)
-            envlist.resize(envlist.size()+2);
-            envlist[pos++] = 0;
-            envlist[pos++] = 0;
+
+        static const wchar_t equal = L'=';
+        static const wchar_t nul = L'\0';
+
+        for ( ; it != end; ++it) {
+            uint tmpSize = sizeof(wchar_t) * (it.key().length() + it.value().length() + 2);
+            // ignore empty strings
+            if (tmpSize == sizeof(wchar_t) * 2)
+                continue;
+            envlist.resize(envlist.size() + tmpSize);
+
+            tmpSize = it.key().length() * sizeof(wchar_t);
+            memcpy(envlist.data()+pos, it.key().utf16(), tmpSize);
+            pos += tmpSize;
+
+            memcpy(envlist.data()+pos, &equal, sizeof(wchar_t));
+            pos += sizeof(wchar_t);
+
+            tmpSize = it.value().length() * sizeof(wchar_t);
+            memcpy(envlist.data()+pos, it.value().utf16(), tmpSize);
+            pos += tmpSize;
+
+            memcpy(envlist.data()+pos, &nul, sizeof(wchar_t));
+            pos += sizeof(wchar_t);
         }
+        // add the 2 terminating 0 (actually 4, just to be on the safe side)
+        envlist.resize( envlist.size()+4 );
+        envlist[pos++] = 0;
+        envlist[pos++] = 0;
+        envlist[pos++] = 0;
+        envlist[pos++] = 0;
     }
     return envlist;
 }
@@ -417,58 +372,33 @@ void QProcessPrivate::startProcess()
     qDebug("   pass environment : %s", environment.isEmpty() ? "no" : "yes");
 #endif
 
-    DWORD dwCreationFlags = 0;
-    if (!(QSysInfo::WindowsVersion & QSysInfo::WV_DOS_based))
-        dwCreationFlags |= CREATE_NO_WINDOW;
+    DWORD dwCreationFlags = CREATE_NO_WINDOW;
 
-#ifdef UNICODE
-    if (!(QSysInfo::WindowsVersion & QSysInfo::WV_DOS_based)) {
 #if defined(Q_OS_WINCE)
         QString fullPathProgram = program;
         if (!QDir::isAbsolutePath(fullPathProgram))
             fullPathProgram = QFileInfo(fullPathProgram).absoluteFilePath();
         fullPathProgram.replace(QLatin1Char('/'), QLatin1Char('\\'));
-        success = CreateProcessW((WCHAR*)fullPathProgram.utf16(),
-                                 (WCHAR*)args.utf16(),
-                                 0, 0, false, 0, 0, 0, 0, pid);
+        success = CreateProcess((wchar_t*)fullPathProgram.utf16(),
+                                (wchar_t*)args.utf16(),
+                                0, 0, false, 0, 0, 0, 0, pid);
 #else
         dwCreationFlags |= CREATE_UNICODE_ENVIRONMENT;
         STARTUPINFOW startupInfo = { sizeof( STARTUPINFO ), 0, 0, 0,
 	                                 (ulong)CW_USEDEFAULT, (ulong)CW_USEDEFAULT,
-                                         (ulong)CW_USEDEFAULT, (ulong)CW_USEDEFAULT,
-                                         0, 0, 0,
-                                         STARTF_USESTDHANDLES,
-                                         0, 0, 0,
-                                         stdinChannel.pipe[0], stdoutChannel.pipe[1], stderrChannel.pipe[1]
+                                   (ulong)CW_USEDEFAULT, (ulong)CW_USEDEFAULT,
+                                   0, 0, 0,
+                                   STARTF_USESTDHANDLES,
+                                   0, 0, 0,
+                                   stdinChannel.pipe[0], stdoutChannel.pipe[1], stderrChannel.pipe[1]
         };
-        success = CreateProcessW(0, (WCHAR*)args.utf16(),
-                                 0, 0, TRUE, dwCreationFlags,
-                                 environment ? envlist.data() : 0,
-                                 workingDirectory.isEmpty() ? 0
-                                    : (WCHAR*)QDir::toNativeSeparators(workingDirectory).utf16(),
-                                 &startupInfo, pid);
-#endif
-    } else
-#endif // UNICODE
-    {
-#ifndef Q_OS_WINCE
-	    STARTUPINFOA startupInfo = { sizeof( STARTUPINFOA ), 0, 0, 0,
-                                         (ulong)CW_USEDEFAULT, (ulong)CW_USEDEFAULT,
-                                         (ulong)CW_USEDEFAULT, (ulong)CW_USEDEFAULT,
-                                         0, 0, 0,
-                                         STARTF_USESTDHANDLES,
-                                         0, 0, 0,
-                                         stdinChannel.pipe[0], stdoutChannel.pipe[1], stderrChannel.pipe[1]
-	    };
-
-	    success = CreateProcessA(0, args.toLocal8Bit().data(),
-                                     0, 0, TRUE, dwCreationFlags, environment ? envlist.data() : 0,
-                                     workingDirectory.isEmpty() ? 0
-                                        : QDir::toNativeSeparators(workingDirectory).toLocal8Bit().data(),
-                                     &startupInfo, pid);
-#endif // Q_OS_WINCE
-    }
-#ifndef Q_OS_WINCE
+        success = CreateProcess(0, (wchar_t*)args.utf16(),
+                                0, 0, TRUE, dwCreationFlags,
+                                environment ? envlist.data() : 0,
+                                workingDirectory.isEmpty() ? 0
+                                    : (wchar_t*)QDir::toNativeSeparators(workingDirectory).utf16(),
+                                &startupInfo, pid);
+
     if (stdinChannel.pipe[0] != INVALID_Q_PIPE) {
         CloseHandle(stdinChannel.pipe[0]);
         stdinChannel.pipe[0] = INVALID_Q_PIPE;
@@ -508,7 +438,7 @@ void QProcessPrivate::startProcess()
     }
 
     // give the process a chance to start ...
-    Sleep(SLEEPMIN*2);
+    Sleep(SLEEPMIN * 2);
     _q_startupNotification();
 }
 
@@ -882,42 +812,25 @@ bool QProcessPrivate::startDetached(const QString &program, const QStringList &a
 
     PROCESS_INFORMATION pinfo;
 
-#ifdef UNICODE
-    if (!(QSysInfo::WindowsVersion & QSysInfo::WV_DOS_based)) {
 #if defined(Q_OS_WINCE)
         QString fullPathProgram = program;
         if (!QDir::isAbsolutePath(fullPathProgram))
             fullPathProgram.prepend(QDir::currentPath().append(QLatin1Char('/')));
         fullPathProgram.replace(QLatin1Char('/'), QLatin1Char('\\'));
-        success = CreateProcessW((WCHAR*)fullPathProgram.utf16(),
-                                 (WCHAR*)args.utf16(),
-                                 0, 0, false, CREATE_NEW_CONSOLE, 0, 0, 0, &pinfo);
+        success = CreateProcess((wchar_t*)fullPathProgram.utf16(),
+                                (wchar_t*)args.utf16(),
+                                0, 0, false, CREATE_NEW_CONSOLE, 0, 0, 0, &pinfo);
 #else
         STARTUPINFOW startupInfo = { sizeof( STARTUPINFO ), 0, 0, 0,
                                      (ulong)CW_USEDEFAULT, (ulong)CW_USEDEFAULT,
                                      (ulong)CW_USEDEFAULT, (ulong)CW_USEDEFAULT,
                                      0, 0, 0, 0, 0, 0, 0, 0, 0, 0
                                    };
-        success = CreateProcessW(0, (WCHAR*)args.utf16(),
-                                 0, 0, FALSE, CREATE_UNICODE_ENVIRONMENT | CREATE_NEW_CONSOLE, 0, 
-                                 workingDir.isEmpty() ? (const WCHAR *)0 : (const WCHAR *)workingDir.utf16(),
-                                 &startupInfo, &pinfo);
-#endif
-    } else
-#endif // UNICODE
-    {
-#ifndef Q_OS_WINCE
-       STARTUPINFOA startupInfo = { sizeof( STARTUPINFOA ), 0, 0, 0,
-                                     (ulong)CW_USEDEFAULT, (ulong)CW_USEDEFAULT,
-                                     (ulong)CW_USEDEFAULT, (ulong)CW_USEDEFAULT,
-                                     0, 0, 0, 0, 0, 0, 0, 0, 0, 0
-                                  };
-       success = CreateProcessA(0, args.toLocal8Bit().data(),
-                                0, 0, FALSE, CREATE_NEW_CONSOLE, 0,
-                                workingDir.isEmpty() ? (LPCSTR)0 : workingDir.toLocal8Bit().constData(),
+        success = CreateProcess(0, (wchar_t*)args.utf16(),
+                                0, 0, FALSE, CREATE_UNICODE_ENVIRONMENT | CREATE_NEW_CONSOLE, 0,
+                                workingDir.isEmpty() ? 0 : (wchar_t*)workingDir.utf16(),
                                 &startupInfo, &pinfo);
 #endif // Q_OS_WINCE
-    }
 
     if (success) {
         CloseHandle(pinfo.hThread);
diff --git a/src/corelib/io/qresource.cpp b/src/corelib/io/qresource.cpp
index f59be7b..0899eef 100644
--- a/src/corelib/io/qresource.cpp
+++ b/src/corelib/io/qresource.cpp
@@ -56,6 +56,10 @@
 #include <qplatformdefs.h>
 #include "private/qabstractfileengine_p.h"
 
+#ifdef Q_OS_UNIX
+# include "private/qcore_unix_p.h"
+#endif
+
 //#define DEBUG_RESOURCE_MATCH
 
 QT_BEGIN_NAMESPACE
diff --git a/src/corelib/io/qresource_iterator.cpp b/src/corelib/io/qresource_iterator.cpp
index e97ac59..11f4acf 100644
--- a/src/corelib/io/qresource_iterator.cpp
+++ b/src/corelib/io/qresource_iterator.cpp
@@ -73,13 +73,11 @@ bool QResourceFileEngineIterator::hasNext() const
             return false;
 
         // Initialize and move to the next entry.
-        QResourceFileEngineIterator *that = const_cast<QResourceFileEngineIterator *>(this);
-        that->entries = resource.children();
-        if (!that->entries.isEmpty())
-            that->index = 0;
+        entries = resource.children();
+        index = 0;
     }
 
-    return index <= entries.size();
+    return index < entries.size();
 }
 
 QString QResourceFileEngineIterator::currentFileName() const
diff --git a/src/corelib/io/qresource_iterator_p.h b/src/corelib/io/qresource_iterator_p.h
index b5e8382..5165157 100644
--- a/src/corelib/io/qresource_iterator_p.h
+++ b/src/corelib/io/qresource_iterator_p.h
@@ -71,8 +71,8 @@ public:
     QString currentFileName() const;
 
 private:
-    QStringList entries;
-    int index;
+    mutable QStringList entries;
+    mutable int index;
 };
 
 QT_END_NAMESPACE
diff --git a/src/corelib/io/qsettings.cpp b/src/corelib/io/qsettings.cpp
index b324441..4e44261 100644
--- a/src/corelib/io/qsettings.cpp
+++ b/src/corelib/io/qsettings.cpp
@@ -1037,33 +1037,16 @@ static QString windowsConfigPath(int type)
     // This only happens when bootstrapping qmake.
 #ifndef Q_OS_WINCE
     QLibrary library(QLatin1String("shell32"));
-    QT_WA( {
-        typedef BOOL (WINAPI*GetSpecialFolderPath)(HWND, LPTSTR, int, BOOL);
-        GetSpecialFolderPath SHGetSpecialFolderPath = (GetSpecialFolderPath)library.resolve("SHGetSpecialFolderPathW");
-        if (SHGetSpecialFolderPath) {
-            TCHAR path[MAX_PATH];
-            SHGetSpecialFolderPath(0, path, type, FALSE);
-            result = QString::fromUtf16((ushort*)path);
-        }
-    } , {
-        typedef BOOL (WINAPI*GetSpecialFolderPath)(HWND, char*, int, BOOL);
-        GetSpecialFolderPath SHGetSpecialFolderPath = (GetSpecialFolderPath)library.resolve("SHGetSpecialFolderPathA");
-        if (SHGetSpecialFolderPath) {
-            char path[MAX_PATH];
-            SHGetSpecialFolderPath(0, path, type, FALSE);
-            result = QString::fromLocal8Bit(path);
-        }
-    } );
 #else
     QLibrary library(QLatin1String("coredll"));
-    typedef BOOL (WINAPI*GetSpecialFolderPath)(HWND, LPTSTR, int, BOOL);
-    GetSpecialFolderPath SHGetSpecialFolderPath = (GetSpecialFolderPath)library.resolve("SHGetSpecialFolderPath");
+#endif // Q_OS_WINCE
+    typedef BOOL (WINAPI*GetSpecialFolderPath)(HWND, LPWSTR, int, BOOL);
+    GetSpecialFolderPath SHGetSpecialFolderPath = (GetSpecialFolderPath)library.resolve("SHGetSpecialFolderPathW");
     if (SHGetSpecialFolderPath) {
         wchar_t path[MAX_PATH];
         SHGetSpecialFolderPath(0, path, type, FALSE);
-        result = QString::fromUtf16((ushort*)path);
+        result = QString::fromWCharArray(path);
     }
-#endif // Q_OS_WINCE
 
 #endif // QT_NO_QOBJECT
 
@@ -1462,11 +1445,7 @@ void QConfFileSettingsPrivate::syncConfFile(int confFileNo)
             QString writeSemName = QLatin1String("QSettingsWriteSem ");
             writeSemName.append(file.fileName());
 
-            QT_WA( {
-                writeSemaphore = CreateSemaphoreW(0, 1, 1, reinterpret_cast<const wchar_t *>(writeSemName.utf16()));
-            } , {
-                writeSemaphore = CreateSemaphoreA(0, 1, 1, writeSemName.toLocal8Bit());
-            } );
+            writeSemaphore = CreateSemaphore(0, 1, 1, reinterpret_cast<const wchar_t *>(writeSemName.utf16()));
 
             if (writeSemaphore) {
                 WaitForSingleObject(writeSemaphore, INFINITE);
@@ -1482,11 +1461,7 @@ void QConfFileSettingsPrivate::syncConfFile(int confFileNo)
         QString readSemName(QLatin1String("QSettingsReadSem "));
         readSemName.append(file.fileName());
 
-        QT_WA( {
-            readSemaphore = CreateSemaphoreW(0, FileLockSemMax, FileLockSemMax, reinterpret_cast<const wchar_t *>(readSemName.utf16()));
-        } , {
-            readSemaphore = CreateSemaphoreA(0, FileLockSemMax, FileLockSemMax, readSemName.toLocal8Bit());
-        } );
+        readSemaphore = CreateSemaphore(0, FileLockSemMax, FileLockSemMax, reinterpret_cast<const wchar_t *>(readSemName.utf16()));
 
         if (readSemaphore) {
             for (int i = 0; i < numReadLocks; ++i)
diff --git a/src/corelib/io/qsettings_win.cpp b/src/corelib/io/qsettings_win.cpp
index 0cbcc10..1e1509d 100644
--- a/src/corelib/io/qsettings_win.cpp
+++ b/src/corelib/io/qsettings_win.cpp
@@ -130,24 +130,13 @@ static void mergeKeySets(NameSet *dest, const QStringList &src)
 
 static QString errorCodeToString(DWORD errorCode)
 {
-    QString result;
-	QT_WA({
-		wchar_t *data = 0;
-		FormatMessageW(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM,
-			0, errorCode, 0,
-			data, 0, 0);
-		result = QString::fromUtf16(reinterpret_cast<const ushort *> (data));
-		if (data != 0)
-			LocalFree(data);
-	},	{
-		char *data = 0;
-		FormatMessageA(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM,
-			0, errorCode, 0,
-			(char *)&data, 0, 0);
-		result = QString::fromLocal8Bit(data);
-		if (data != 0)
-			LocalFree(data);
-	})
+    wchar_t *data = 0;
+    FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM, 0, errorCode, 0, data, 0, 0);
+    QString result = QString::fromWCharArray(data);
+
+    if (data != 0)
+        LocalFree(data);
+
     if (result.endsWith(QLatin1Char('\n')))
         result.truncate(result.length() - 1);
 
@@ -158,15 +147,8 @@ static QString errorCodeToString(DWORD errorCode)
 static HKEY openKey(HKEY parentHandle, REGSAM perms, const QString &rSubKey)
 {
     HKEY resultHandle = 0;
-
-    LONG res;
-    QT_WA( {
-        res = RegOpenKeyExW(parentHandle, reinterpret_cast<const wchar_t *>(rSubKey.utf16()),
-                            0, perms, &resultHandle);
-    } , {
-        res = RegOpenKeyExA(parentHandle, rSubKey.toLocal8Bit(),
+    LONG res = RegOpenKeyEx(parentHandle, reinterpret_cast<const wchar_t *>(rSubKey.utf16()),
                             0, perms, &resultHandle);
-    } );
 
     if (res == ERROR_SUCCESS)
         return resultHandle;
@@ -183,14 +165,8 @@ static HKEY createOrOpenKey(HKEY parentHandle, REGSAM perms, const QString &rSub
         return resultHandle;
 
     // try to create it
-    LONG res;
-    QT_WA( {
-        res = RegCreateKeyExW(parentHandle, reinterpret_cast<const wchar_t *>(rSubKey.utf16()), 0, 0,
-                              REG_OPTION_NON_VOLATILE, perms, 0, &resultHandle, 0);
-    } , {
-        res = RegCreateKeyExA(parentHandle, rSubKey.toLocal8Bit(), 0, 0,
+    LONG res = RegCreateKeyEx(parentHandle, reinterpret_cast<const wchar_t *>(rSubKey.utf16()), 0, 0,
                               REG_OPTION_NON_VOLATILE, perms, 0, &resultHandle, 0);
-    } );
 
     if (res == ERROR_SUCCESS)
         return resultHandle;
@@ -225,20 +201,14 @@ static HKEY createOrOpenKey(HKEY parentHandle, const QString &rSubKey, bool *rea
 static QStringList childKeysOrGroups(HKEY parentHandle, QSettingsPrivate::ChildSpec spec)
 {
     QStringList result;
-    LONG res;
     DWORD numKeys;
     DWORD maxKeySize;
     DWORD numSubgroups;
     DWORD maxSubgroupSize;
 
     // Find the number of keys and subgroups, as well as the max of their lengths.
-    QT_WA( {
-        res = RegQueryInfoKeyW(parentHandle, 0, 0, 0, &numSubgroups, &maxSubgroupSize, 0,
+    LONG res = RegQueryInfoKey(parentHandle, 0, 0, 0, &numSubgroups, &maxSubgroupSize, 0,
                                &numKeys, &maxKeySize, 0, 0, 0);
-    }, {
-        res = RegQueryInfoKeyA(parentHandle, 0, 0, 0, &numSubgroups, &maxSubgroupSize, 0,
-                               &numKeys, &maxKeySize, 0, 0, 0);
-    } );
 
     if (res != ERROR_SUCCESS) {
         qWarning("QSettings: RegQueryInfoKey() failed: %s", errorCodeToString(res).toLatin1().data());
@@ -258,36 +228,21 @@ static QStringList childKeysOrGroups(HKEY parentHandle, QSettingsPrivate::ChildS
         m = maxSubgroupSize;
     }
 
-    /* Windows NT/2000/XP: The size does not include the terminating null character.
-       Windows Me/98/95: The size includes the terminating null character. */
+    /* The size does not include the terminating null character. */
     ++m;
 
     // Get the list
-    QByteArray buff(m*sizeof(ushort), 0);
+    QByteArray buff(m * sizeof(wchar_t), 0);
     for (int i = 0; i < n; ++i) {
         QString item;
-        QT_WA( {
-            DWORD l = buff.size() / sizeof(ushort);
-            if (spec == QSettingsPrivate::ChildKeys) {
-                res = RegEnumValueW(parentHandle, i,
-                                    reinterpret_cast<wchar_t *>(buff.data()),
-                                    &l, 0, 0, 0, 0);
-            } else {
-                res = RegEnumKeyExW(parentHandle, i,
-                                    reinterpret_cast<wchar_t *>(buff.data()),
-                                    &l, 0, 0, 0, 0);
-            }
-            if (res == ERROR_SUCCESS)
-                item = QString::fromUtf16(reinterpret_cast<ushort*>(buff.data()), l);
-        }, {
-            DWORD l = buff.size();
-            if (spec == QSettingsPrivate::ChildKeys)
-                res = RegEnumValueA(parentHandle, i, buff.data(), &l, 0, 0, 0, 0);
-            else
-                res = RegEnumKeyExA(parentHandle, i, buff.data(), &l, 0, 0, 0, 0);
-            if (res == ERROR_SUCCESS)
-                item = QString::fromLocal8Bit(buff.data(), l);
-        } );
+        DWORD l = buff.size() / sizeof(wchar_t);
+        if (spec == QSettingsPrivate::ChildKeys) {
+            res = RegEnumValue(parentHandle, i, reinterpret_cast<wchar_t *>(buff.data()), &l, 0, 0, 0, 0);
+        } else {
+            res = RegEnumKeyEx(parentHandle, i, reinterpret_cast<wchar_t *>(buff.data()), &l, 0, 0, 0, 0);
+        }
+        if (res == ERROR_SUCCESS)
+            item = QString::fromWCharArray((const wchar_t *)buff.constData(), l);
 
         if (res != ERROR_SUCCESS) {
             qWarning("QSettings: RegEnumValue failed: %s", errorCodeToString(res).toLatin1().data());
@@ -342,12 +297,7 @@ static void deleteChildGroups(HKEY parentHandle)
         RegCloseKey(childGroupHandle);
 
         // delete group itself
-        LONG res;
-        QT_WA( {
-            res = RegDeleteKeyW(parentHandle, reinterpret_cast<const wchar_t *>(group.utf16()));
-        }, {
-            res = RegDeleteKeyA(parentHandle, group.toLocal8Bit());
-        } );
+        LONG res = RegDeleteKey(parentHandle, reinterpret_cast<const wchar_t *>(group.utf16()));
         if (res != ERROR_SUCCESS) {
             qWarning("QSettings: RegDeleteKey failed on subkey \"%s\": %s",
                       group.toLatin1().data(), errorCodeToString(res).toLatin1().data());
@@ -519,12 +469,7 @@ bool QWinSettingsPrivate::readKey(HKEY parentHandle, const QString &rSubKey, QVa
     // get the size and type of the value
     DWORD dataType;
     DWORD dataSize;
-    LONG res;
-    QT_WA( {
-        res = RegQueryValueExW(handle, reinterpret_cast<const wchar_t *>(rSubkeyName.utf16()), 0, &dataType, 0, &dataSize);
-    }, {
-        res = RegQueryValueExA(handle, rSubkeyName.toLocal8Bit(), 0, &dataType, 0, &dataSize);
-    } );
+    LONG res = RegQueryValueEx(handle, reinterpret_cast<const wchar_t *>(rSubkeyName.utf16()), 0, &dataType, 0, &dataSize);
     if (res != ERROR_SUCCESS) {
         RegCloseKey(handle);
         return false;
@@ -532,13 +477,8 @@ bool QWinSettingsPrivate::readKey(HKEY parentHandle, const QString &rSubKey, QVa
 
     // get the value
     QByteArray data(dataSize, 0);
-    QT_WA( {
-        res = RegQueryValueExW(handle, reinterpret_cast<const wchar_t *>(rSubkeyName.utf16()), 0, 0,
-                               reinterpret_cast<unsigned char*>(data.data()), &dataSize);
-    }, {
-        res = RegQueryValueExA(handle, rSubkeyName.toLocal8Bit(), 0, 0,
-                               reinterpret_cast<unsigned char*>(data.data()), &dataSize);
-    } );
+    res = RegQueryValueEx(handle, reinterpret_cast<const wchar_t *>(rSubkeyName.utf16()), 0, 0,
+                           reinterpret_cast<unsigned char*>(data.data()), &dataSize);
     if (res != ERROR_SUCCESS) {
         RegCloseKey(handle);
         return false;
@@ -549,11 +489,7 @@ bool QWinSettingsPrivate::readKey(HKEY parentHandle, const QString &rSubKey, QVa
         case REG_SZ: {
             QString s;
             if (dataSize) {
-                QT_WA( {
-                    s = QString::fromUtf16(((const ushort*)data.constData()));
-                }, {
-                    s = QString::fromLocal8Bit(data.constData());
-                } );
+                s = QString::fromWCharArray(((const wchar_t *)data.constData()));
             }
             if (value != 0)
                 *value = stringToVariant(s);
@@ -565,12 +501,7 @@ bool QWinSettingsPrivate::readKey(HKEY parentHandle, const QString &rSubKey, QVa
             if (dataSize) {
                 int i = 0;
                 for (;;) {
-                    QString s;
-                    QT_WA( {
-                        s = QString::fromUtf16((const ushort*)data.constData() + i);
-                    }, {
-                        s = QString::fromLocal8Bit(data.constData() + i);
-                    } );
+                    QString s = QString::fromWCharArray((const wchar_t *)data.constData() + i);
                     i += s.length() + 1;
 
                     if (s.isEmpty())
@@ -587,11 +518,7 @@ bool QWinSettingsPrivate::readKey(HKEY parentHandle, const QString &rSubKey, QVa
         case REG_BINARY: {
             QString s;
             if (dataSize) {
-                QT_WA( {
-                    s = QString::fromUtf16((const ushort*)data.constData(), data.size()/2);
-                }, {
-                    s = QString::fromLocal8Bit(data.constData(), data.size());
-                } );
+                s = QString::fromWCharArray((const wchar_t *)data.constData(), data.size() / 2);
             }
             if (value != 0)
                 *value = stringToVariant(s);
@@ -635,13 +562,8 @@ QWinSettingsPrivate::~QWinSettingsPrivate()
 #if defined(Q_OS_WINCE)
         remove(regList.at(0).key()); 
 #else
-        DWORD res;
         QString emptyKey;
-        QT_WA( {
-            res = RegDeleteKeyW(writeHandle(), reinterpret_cast<const wchar_t *>(emptyKey.utf16()));
-        }, {
-            res = RegDeleteKeyA(writeHandle(), emptyKey.toLocal8Bit());
-        } );
+        DWORD res = RegDeleteKey(writeHandle(), reinterpret_cast<const wchar_t *>(emptyKey.utf16()));
         if (res != ERROR_SUCCESS) {
             qWarning("QSettings: Failed to delete key \"%s\": %s",
                     regList.at(0).key().toLatin1().data(), errorCodeToString(res).toLatin1().data());
@@ -666,11 +588,7 @@ void QWinSettingsPrivate::remove(const QString &uKey)
     LONG res;
     HKEY handle = openKey(writeHandle(), registryPermissions, keyPath(rKey));
     if (handle != 0) {
-        QT_WA( {
-            res = RegDeleteValueW(handle, reinterpret_cast<const wchar_t *>(keyName(rKey).utf16()));
-        }, {
-            res = RegDeleteValueA(handle, keyName(rKey).toLocal8Bit());
-        } );
+        res = RegDeleteValue(handle, reinterpret_cast<const wchar_t *>(keyName(rKey).utf16()));
         RegCloseKey(handle);
     }
 
@@ -685,12 +603,7 @@ void QWinSettingsPrivate::remove(const QString &uKey)
             for (int i = 0; i < childKeys.size(); ++i) {
                 QString group = childKeys.at(i);
 
-                LONG res;
-                QT_WA( {
-                    res = RegDeleteValueW(handle, reinterpret_cast<const wchar_t *>(group.utf16()));
-                }, {
-                    res = RegDeleteValueA(handle, group.toLocal8Bit());
-                } );
+                LONG res = RegDeleteValue(handle, reinterpret_cast<const wchar_t *>(group.utf16()));
                 if (res != ERROR_SUCCESS) {
                     qWarning("QSettings: RegDeleteValue failed on subkey \"%s\": %s",
                               group.toLatin1().data(), errorCodeToString(res).toLatin1().data());
@@ -701,11 +614,7 @@ void QWinSettingsPrivate::remove(const QString &uKey)
             // For WinCE always Close the handle first.
             RegCloseKey(handle);
 #endif
-            QT_WA( {
-                res = RegDeleteKeyW(writeHandle(), reinterpret_cast<const wchar_t *>(rKey.utf16()));
-            }, {
-                res = RegDeleteKeyA(writeHandle(), rKey.toLocal8Bit());
-            } );
+            res = RegDeleteKey(writeHandle(), reinterpret_cast<const wchar_t *>(rKey.utf16()));
 
             if (res != ERROR_SUCCESS) {
                 qWarning("QSettings: RegDeleteKey failed on key \"%s\": %s",
@@ -761,27 +670,15 @@ void QWinSettingsPrivate::set(const QString &uKey, const QVariant &value)
 
             if (type == REG_BINARY) {
                 QString s = variantToString(value);
-                QT_WA( {
-                    regValueBuff = QByteArray((const char*)s.utf16(), s.length()*2);
-                }, {
-                    regValueBuff = QByteArray((const char*)s.toLocal8Bit(), s.length());
-                } );
+                regValueBuff = QByteArray((const char*)s.utf16(), s.length() * 2);
             } else {
                 QStringList::const_iterator it = l.constBegin();
                 for (; it != l.constEnd(); ++it) {
                     const QString &s = *it;
-                    QT_WA( {
-                        regValueBuff += QByteArray((const char*)s.utf16(), (s.length() + 1)*2);
-                    }, {
-                        regValueBuff += QByteArray((const char*)s.toLocal8Bit(), s.length() + 1);
-                    } );
+                    regValueBuff += QByteArray((const char*)s.utf16(), (s.length() + 1) * 2);
                 }
-                QT_WA( {
-                    regValueBuff.append((char)0);
-                    regValueBuff.append((char)0);
-                }, {
-                    regValueBuff.append((char)0);
-                } );
+                regValueBuff.append((char)0);
+                regValueBuff.append((char)0);
             }
             break;
         }
@@ -794,21 +691,6 @@ void QWinSettingsPrivate::set(const QString &uKey, const QVariant &value)
         }
 
         case QVariant::ByteArray:
-            // On Win95/98/Me QString::toLocal8Bit() fails to handle chars > 0x7F. So we don't go through variantToString() at all.
-            if (QSysInfo::WindowsVersion & QSysInfo::WV_DOS_based) {
-                QByteArray ba = value.toByteArray();
-                regValueBuff = "@ByteArray(";
-                regValueBuff += ba;
-                regValueBuff += ')';
-                if (ba.contains('\0')) {
-                    type = REG_BINARY;
-                } else {
-                    type = REG_SZ;
-                    regValueBuff += '\0';
-                }
-                    
-                break;
-            }
             // fallthrough intended
 
         default: {
@@ -817,33 +699,18 @@ void QWinSettingsPrivate::set(const QString &uKey, const QVariant &value)
             QString s = variantToString(value);
             type = stringContainsNullChar(s) ? REG_BINARY : REG_SZ;
             if (type == REG_BINARY) {
-                QT_WA( {
-                    regValueBuff = QByteArray((const char*)s.utf16(), s.length()*2);
-                }, {
-                    regValueBuff = QByteArray((const char*)s.toLocal8Bit(), s.length());
-                } );
+                regValueBuff = QByteArray((const char*)s.utf16(), s.length() * 2);
             } else {
-                QT_WA( {
-                    regValueBuff = QByteArray((const char*)s.utf16(), (s.length() + 1)*2);
-                }, {
-                    regValueBuff = QByteArray((const char*)s.toLocal8Bit(), s.length() + 1);
-                } );
+                regValueBuff = QByteArray((const char*)s.utf16(), (s.length() + 1) * 2);
             }
             break;
         }
     }
 
     // set the value
-    LONG res;
-    QT_WA( {
-        res = RegSetValueExW(handle, reinterpret_cast<const wchar_t *>(keyName(rKey).utf16()), 0, type,
-                             reinterpret_cast<const unsigned char*>(regValueBuff.constData()),
-                             regValueBuff.size());
-    }, {
-        res = RegSetValueExA(handle, keyName(rKey).toLocal8Bit(), 0, type,
+    LONG res = RegSetValueEx(handle, reinterpret_cast<const wchar_t *>(keyName(rKey).utf16()), 0, type,
                              reinterpret_cast<const unsigned char*>(regValueBuff.constData()),
                              regValueBuff.size());
-    } );
 
     if (res == ERROR_SUCCESS) {
         deleteWriteHandleOnExit = false;
diff --git a/src/corelib/io/qtemporaryfile.cpp b/src/corelib/io/qtemporaryfile.cpp
index 2d5bea6..e098064 100644
--- a/src/corelib/io/qtemporaryfile.cpp
+++ b/src/corelib/io/qtemporaryfile.cpp
@@ -60,6 +60,10 @@
 #include <time.h>
 #include <ctype.h>
 
+#if defined(Q_OS_UNIX)
+# include "private/qcore_unix_p.h"      // overrides QT_OPEN
+#endif
+
 #if defined(Q_OS_WIN) && !defined(Q_OS_WINCE)
 # include <process.h>
 # if defined(_MSC_VER) && _MSC_VER >= 1400
@@ -72,7 +76,6 @@
 #  include "qfunctions_wince.h"
 #endif
 
-
 QT_BEGIN_NAMESPACE
 
 /*
@@ -208,8 +211,9 @@ static int _gettemp(char *path, int *doopen, int domkdir, int slen)
             if ((*doopen =
                 QT_OPEN(targetPath.toLocal8Bit(), O_CREAT|O_EXCL|O_RDWR
 #  else // CE
+            // this is Unix or older MSVC
             if ((*doopen =
-                open(path, QT_OPEN_CREAT|O_EXCL|QT_OPEN_RDWR
+                QT_OPEN(path, QT_OPEN_CREAT|O_EXCL|QT_OPEN_RDWR
 #  endif
 #  ifdef QT_LARGEFILE_SUPPORT
                            |QT_OPEN_LARGEFILE
@@ -219,18 +223,9 @@ static int _gettemp(char *path, int *doopen, int domkdir, int slen)
 #  elif defined(Q_OS_WIN)
                            |O_BINARY
 #  endif
-#  ifdef O_CLOEXEC
-                           // supported on Linux >= 2.6.23; avoids one extra system call
-                           // and avoids a race condition: if another thread forks, we could
-                           // end up leaking a file descriptor...
-                           |O_CLOEXEC
-#  endif
                      , 0600)) >= 0)
 #endif // WIN && !CE
             {
-#if defined(Q_OS_UNIX) && !defined(O_CLOEXEC)
-                fcntl(*doopen, F_SETFD, FD_CLOEXEC);
-#endif
                 return 1;
             }
             if (errno != EEXIST)
diff --git a/src/corelib/io/qurl.cpp b/src/corelib/io/qurl.cpp
index 180e9ec..79cd2f0 100644
--- a/src/corelib/io/qurl.cpp
+++ b/src/corelib/io/qurl.cpp
@@ -2336,12 +2336,12 @@ static const NameprepCaseFoldingEntry NameprepCaseFolding[] = {
 	{ 0x1D7BB, { 0x03C3, 0x0000, 0x0000, 0x0000 } }
 };
 
-static void mapToLowerCase(QString *str)
+static void mapToLowerCase(QString *str, int from)
 {
     int N = sizeof(NameprepCaseFolding) / sizeof(NameprepCaseFolding[0]);
 
     QChar *d = 0;
-    for (int i = 0; i < str->size(); ++i) {
+    for (int i = from; i < str->size(); ++i) {
         int uc = str->at(i).unicode();
         if (uc < 0x80) {
             if (uc <= 'Z' && uc >= 'A') {
@@ -2388,11 +2388,11 @@ static bool isMappedToNothing(const QChar &ch)
 }
 
 
-static void stripProhibitedOutput(QString *str)
+static void stripProhibitedOutput(QString *str, int from)
 {
-    ushort *out = (ushort *)str->data(); 
+    ushort *out = (ushort *)str->data() + from;
     const ushort *in = out;
-    const ushort *end = out + str->size();
+    const ushort *end = (ushort *)str->data() + str->size();
     while (in < end) {
         ushort uc = *in;
         if (uc < 0x80 ||
@@ -2901,66 +2901,99 @@ static bool isBidirectionalL(const QChar &ch)
     return false;
 }
 
+#ifdef QT_BUILD_INTERNAL
+// export for tst_qurl.cpp
+Q_AUTOTEST_EXPORT void qt_nameprep(QString *source, int from);
+Q_AUTOTEST_EXPORT bool qt_check_std3rules(const QChar *uc, int len);
+#else
+// non-test build, keep the symbols for ourselves
+static void qt_nameprep(QString *source, int from);
+static bool qt_check_std3rules(const QChar *uc, int len);
+#endif
 
-Q_AUTOTEST_EXPORT QString qt_nameprep(const QString &source)
+void qt_nameprep(QString *source, int from)
 {
-    QString mapped = source;
-    
-    bool simple = true;
-    for (int i = 0; i < mapped.size(); ++i) {
-        ushort uc = mapped.at(i).unicode();
+    QChar *src = source->data(); // causes a detach, so we're sure the only one using it
+    QChar *out = src + from;
+    const QChar *e = src + source->size();
+
+    for ( ; out < e; ++out) {
+        register ushort uc = out->unicode();
         if (uc > 0x80) {
-            simple = false;
             break;
         } else if (uc >= 'A' && uc <= 'Z') {
-            mapped[i] = QChar(uc | 0x20);
+            *out = QChar(uc | 0x20);
         }
     }
-    if (simple)
-        return mapped;
-    
+    if (out == e)
+        return; // everything was mapped easily (lowercased, actually)
+    int firstNonAscii = out - src;
+
     // Characters commonly mapped to nothing are simply removed
     // (Table B.1)
-    QChar *out = mapped.data();
     const QChar *in = out;
-    const QChar *e = in + mapped.size();
     while (in < e) {
         if (!isMappedToNothing(*in))
             *out++ = *in;
         ++in;
     }
     if (out != in)
-        mapped.truncate(out - mapped.constData());
+        source->truncate(out - src);
 
     // Map to lowercase (Table B.2)
-    mapToLowerCase(&mapped);
+    mapToLowerCase(source, firstNonAscii);
 
     // Normalize to Unicode 3.2 form KC
-    mapped = mapped.normalized(QString::NormalizationForm_KC, QChar::Unicode_3_2);
+    extern void qt_string_normalize(QString *data, QString::NormalizationForm mode,
+                                    QChar::UnicodeVersion version, int from);
+    qt_string_normalize(source, QString::NormalizationForm_KC, QChar::Unicode_3_2, firstNonAscii);
 
     // Strip prohibited output
-    stripProhibitedOutput(&mapped);
+    stripProhibitedOutput(source, firstNonAscii);
 
     // Check for valid bidirectional characters
     bool containsLCat = false;
     bool containsRandALCat = false;
-    for (int j = 0; j < mapped.size() && (!containsLCat || !containsRandALCat); ++j) {
-        if (isBidirectionalL(mapped.at(j)))
+    src = source->data();
+    e = src + source->size();
+    for (in = src + from; in < e && (!containsLCat || !containsRandALCat); ++in) {
+        if (isBidirectionalL(*in))
             containsLCat = true;
-        else if (isBidirectionalRorAL(mapped.at(j)))
+        else if (isBidirectionalRorAL(*in))
             containsRandALCat = true;
     }
     if (containsRandALCat) {
-        if (containsLCat || (!isBidirectionalRorAL(mapped.at(0))
-                             || !isBidirectionalRorAL(mapped.at(mapped.size() - 1))))
-            mapped.clear();
+        if (containsLCat || (!isBidirectionalRorAL(src[from])
+                             || !isBidirectionalRorAL(e[-1])))
+            source->resize(from); // not allowed, clear the label
     }
+}
+
+bool qt_check_std3rules(const QChar *uc, int len)
+{
+    if (len > 63)
+        return false;
 
-    return mapped;
+    for (int i = 0; i < len; ++i) {
+        register ushort c = uc[i].unicode();
+        if (c == '-' && (i == 0 || i == len - 1))
+            return false;
+
+        // verifying the absence of LDH is the same as verifying that
+        // only LDH is present
+        if (c == '-' || (c >= '0' && c <= '9')
+            || (c >= 'A' && c <= 'Z')
+            || (c >= 'a' && c <= 'z'))
+            continue;
+
+        return false;
+    }
+
+    return true;
 }
 
 
-static inline char encodeDigit(uint digit)
+static inline uint encodeDigit(uint digit)
 {
   return digit + 22 + 75 * (digit < 26);
 }
@@ -2977,7 +3010,7 @@ static inline uint adapt(uint delta, uint numpoints, bool firsttime)
     return k + (((base - tmin + 1) * delta) / (delta + skew));
 }
 
-static inline void appendEncode(QByteArray* output, uint& delta, uint& bias, uint& b, uint& h)
+static inline void appendEncode(QString* output, uint& delta, uint& bias, uint& b, uint& h)
 {
     uint qq;
     uint k;
@@ -2991,17 +3024,17 @@ static inline void appendEncode(QByteArray* output, uint& delta, uint& bias, uin
         t = (k <= bias) ? tmin : (k >= bias + tmax) ? tmax : k - bias;
         if (qq < t) break;
 
-        *output += encodeDigit(t + (qq - t) % (base - t));
+        *output += QChar(encodeDigit(t + (qq - t) % (base - t)));
         qq = (qq - t) / (base - t);
     }
 
-    *output += encodeDigit(qq);
+    *output += QChar(encodeDigit(qq));
     bias = adapt(delta, h + 1, h == b);
     delta = 0;
     ++h;
 }
 
-static void toPunycodeHelper(const QChar *s, int ucLength, QByteArray *output)
+static void toPunycodeHelper(const QChar *s, int ucLength, QString *output)
 {
     uint n = initial_n;
     uint delta = 0;
@@ -3010,7 +3043,7 @@ static void toPunycodeHelper(const QChar *s, int ucLength, QByteArray *output)
     int outLen = output->length();
     output->resize(outLen + ucLength);
 
-    char *d = output->data() + outLen;
+    QChar *d = output->data() + outLen;
     bool skipped = false;
     // copy all basic code points verbatim to output.
     for (uint j = 0; j < (uint) ucLength; ++j) {
@@ -3035,7 +3068,7 @@ static void toPunycodeHelper(const QChar *s, int ucLength, QByteArray *output)
 
     // if basic code points were copied, add the delimiter character.
     if (h > 0)
-        *output += 0x2d;
+        *output += QChar(0x2d);
 
     // while there are still unprocessed non-basic code points left in
     // the input string...
@@ -3083,7 +3116,7 @@ static void toPunycodeHelper(const QChar *s, int ucLength, QByteArray *output)
     }
 
     // prepend ACE prefix
-    output->insert(outLen, "xn--");
+    output->insert(outLen, QLatin1String("xn--"));
     return;
 }
 
@@ -3144,11 +3177,15 @@ static bool qt_is_idn_enabled(const QString &domain)
     int idx = domain.lastIndexOf(QLatin1Char('.'));
     if (idx == -1)
         return false;
-    const QChar *tld = domain.constData() + idx + 1;
+
     int len = domain.size() - idx - 1;
+    QString tldString(domain.constData() + idx + 1, len);
+    qt_nameprep(&tldString, 0);
+
+    const QChar *tld = tldString.constData();
 
     if (user_idn_whitelist)
-        return user_idn_whitelist->contains(QString(tld, len));
+        return user_idn_whitelist->contains(tldString);
 
     int l = 0;
     int r = sizeof(idn_whitelist)/sizeof(const char *) - 1;
@@ -3164,46 +3201,127 @@ static bool qt_is_idn_enabled(const QString &domain)
     return equal(tld, len, idn_whitelist[i]);
 }
 
-static QString qt_from_ACE(const QString &domainMC)
+static inline bool isDotDelimiter(ushort uc)
 {
-    QString domain = domainMC.toLower();
-    int idx = domain.indexOf(QLatin1Char('.'));
-    if (idx != -1) {
-        if (!domain.contains(QLatin1String("xn--"))) {
-            bool simple = true;
-            for (int i = 0; i < domain.size(); ++i) {
-                ushort ch = domain.at(i).unicode();
-                if (ch > 'z' || ch < '-' || ch == '/' || (ch > '9' && ch < 'A') || (ch > 'Z' && ch < 'a')) {
+    // IDNA / rfc3490 describes these four delimiters used for
+    // separating labels in unicode international domain
+    // names.
+    return uc == 0x2e || uc == 0x3002 || uc == 0xff0e || uc == 0xff61;
+}
+
+static int nextDotDelimiter(const QString &domain, int from = 0)
+{
+    const QChar *b = domain.unicode();
+    const QChar *ch = b + from;
+    const QChar *e = b + domain.length();
+    while (ch < e) {
+        if (isDotDelimiter(ch->unicode()))
+            break;
+        else
+            ++ch;
+    }
+    return ch - b;
+}
+
+enum AceOperation { ToAceOnly, NormalizeAce };
+static QString qt_ACE_do(const QString &domain, AceOperation op)
+{
+    if (domain.isEmpty())
+        return domain;
+
+    QString result;
+    result.reserve(domain.length());
+
+    const bool isIdnEnabled = op == NormalizeAce ? qt_is_idn_enabled(domain) : false;
+    int lastIdx = 0;
+    QString aceForm; // this variable is here for caching
+
+    while (1) {
+        int idx = nextDotDelimiter(domain, lastIdx);
+        int labelLength = idx - lastIdx;
+        if (labelLength == 0)
+            return QString(); // two delimiters in a row -- empty label not allowed
+
+        // RFC 3490 says, about the ToASCII operation:
+        //   3. If the UseSTD3ASCIIRules flag is set, then perform these checks:
+        //
+        //     (a) Verify the absence of non-LDH ASCII code points; that is, the
+        //         absence of 0..2C, 2E..2F, 3A..40, 5B..60, and 7B..7F.
+        //
+        //     (b) Verify the absence of leading and trailing hyphen-minus; that
+        //         is, the absence of U+002D at the beginning and end of the
+        //         sequence.
+        // and:
+        //   8. Verify that the number of code points is in the range 1 to 63
+        //      inclusive.
+
+        // copy the label to the destination, which also serves as our scratch area, lowercasing it
+        int prevLen = result.size();
+        bool simple = true;
+        result.resize(prevLen + labelLength);
+        {
+            QChar *out = result.data() + prevLen;
+            const QChar *in = domain.constData() + lastIdx;
+            const QChar *e = in + labelLength;
+            for (; in < e; ++in, ++out) {
+                register ushort uc = in->unicode();
+                if (uc > 0x7f)
                     simple = false;
-                    break;
-                }
+                if (uc >= 'A' && uc <= 'Z')
+                    *out = QChar(uc | 0x20);
+                else
+                    *out = *in;
             }
-            if (simple)
-                return domain;
         }
-        
-        const bool isIdnEnabled = qt_is_idn_enabled(domain);
-        int lastIdx = 0;
-        QString result;
-        while (1) {
-            // Nameprep the host. If the labels in the hostname are Punycode
-            // encoded, we decode them immediately, then nameprep them.
-            QByteArray label;
-            toPunycodeHelper(domain.constData() + lastIdx, idx - lastIdx, &label);
-            result += qt_nameprep(isIdnEnabled ? QUrl::fromPunycode(label) : QString::fromLatin1(label));
-            lastIdx = idx + 1;
-            if (lastIdx < domain.size() + 1)
-                result += QLatin1Char('.');
-            else
-                break;
-            idx = domain.indexOf(QLatin1Char('.'), lastIdx);
-            if (idx == -1)
-                idx = domain.size();
+
+        if (simple && labelLength > 6) {
+            // ACE form domains contain only ASCII characters, but we can't consider them simple
+            // is this an ACE form?
+            // the shortest valid ACE domain is 6 characters long (U+0080 would be 1, but it's not allowed)
+            static const ushort acePrefixUtf16[] = { 'x', 'n', '-', '-' };
+            if (memcmp(result.constData() + prevLen, acePrefixUtf16, sizeof acePrefixUtf16) == 0)
+                simple = false;
         }
-        return result;
-    } else {
-        return qt_nameprep(domain);
+
+        if (simple) {
+            // fastest case: this is the common case (non IDN-domains)
+            // so we're done
+            if (!qt_check_std3rules(result.constData() + prevLen, labelLength))
+                return QString();
+        } else { 
+            // Punycode encoding and decoding cannot be done in-place
+            // That means we need one or two temporaries
+            qt_nameprep(&result, prevLen);
+            labelLength = result.length() - prevLen;
+            register int toReserve = labelLength + 4 + 6; // "xn--" plus some extra bytes
+            if (toReserve > aceForm.capacity())
+                aceForm.reserve(toReserve);
+            toPunycodeHelper(result.constData() + prevLen, result.size() - prevLen, &aceForm);
+
+            // We use resize()+memcpy() here because we're overwriting the data we've copied
+            if (isIdnEnabled) {
+                QString tmp = QUrl::fromPunycode(aceForm.toLatin1());
+                if (tmp.isEmpty())
+                    return QString(); // shouldn't happen, since we've just punycode-encoded it
+                result.resize(prevLen + tmp.size());
+                memcpy(result.data() + prevLen, tmp.constData(), tmp.size() * sizeof(QChar));
+            } else {
+                result.resize(prevLen + aceForm.size());
+                memcpy(result.data() + prevLen, aceForm.constData(), aceForm.size() * sizeof(QChar));
+            }
+
+            if (!qt_check_std3rules(aceForm.constData(), aceForm.size()))
+                return QString();
+        }
+
+
+        lastIdx = idx + 1;
+        if (lastIdx < domain.size() + 1)
+            result += QLatin1Char('.');
+        else
+            break;
     }
+    return result;
 }
 
 
@@ -3246,12 +3364,27 @@ QUrlPrivate::QUrlPrivate(const QUrlPrivate &copy)
 
 QString QUrlPrivate::canonicalHost() const
 {
-    if (QURL_HASFLAG(stateFlags, HostCanonicalized))
+    if (QURL_HASFLAG(stateFlags, HostCanonicalized) || host.isEmpty())
         return host;
 
     QUrlPrivate *that = const_cast<QUrlPrivate *>(this);
     QURL_SETFLAG(that->stateFlags, HostCanonicalized);
-    that->host = qt_from_ACE(host);
+    if (host.contains(QLatin1Char(':'))) {
+        // This is an IP Literal, use _IPLiteral to validate
+        QByteArray ba = host.toLatin1();
+        if (!ba.startsWith('[')) {
+            // surround the IP Literal with [ ] if it's not already done so
+            ba.reserve(ba.length() + 2);
+            ba.prepend('[');
+            ba.append(']');
+        }
+
+        const char *ptr = ba.constData();
+        if (!_IPLiteral(&ptr))
+            that->host.clear();
+    } else {
+        that->host = qt_ACE_do(host, NormalizeAce);
+    }
     return that->host;
 }
 
@@ -3737,7 +3870,10 @@ QByteArray QUrlPrivate::toEncoded(QUrl::FormattingOptions options) const
             }
         }
 
-        url += QUrl::toAce(host);
+        if (host.startsWith(QLatin1Char('[')))
+            url += host.toLatin1();
+        else
+            url += QUrl::toAce(host);
         if (!(options & QUrl::RemovePort) && port != -1) {
             url += ':';
             url += QString::number(port).toAscii();
@@ -4412,8 +4548,6 @@ void QUrl::setHost(const QString &host)
     QURL_UNSETFLAG(d->stateFlags, QUrlPrivate::Validated | QUrlPrivate::Normalized | QUrlPrivate::HostCanonicalized);
 
     d->host = host;
-    if (d->host.contains(QLatin1Char(':')))
-        d->host = QLatin1Char('[') + d->host + QLatin1Char(']');
 }
 
 /*!
@@ -5425,9 +5559,9 @@ QByteArray QUrl::toPercentEncoding(const QString &input, const QByteArray &exclu
 */
 QByteArray QUrl::toPunycode(const QString &uc)
 {
-    QByteArray output;
+    QString output;
     toPunycodeHelper(uc.constData(), uc.size(), &output);
-    return output;
+    return output.toLatin1();
 }
 
 /*!
@@ -5528,7 +5662,7 @@ QString QUrl::fromPunycode(const QByteArray &pc)
 */
 QString QUrl::fromAce(const QByteArray &domain)
 {
-    return qt_from_ACE(QString::fromLatin1(domain));
+    return qt_ACE_do(QString::fromLatin1(domain), NormalizeAce);
 }
 
 /*!
@@ -5545,26 +5679,8 @@ QString QUrl::fromAce(const QByteArray &domain)
 */
 QByteArray QUrl::toAce(const QString &domain)
 {
-    // IDNA / rfc3490 describes these four delimiters used for
-    // separating labels in unicode international domain
-    // names.
-    QString nameprepped = qt_nameprep(domain);
-    int lastIdx = 0;
-    QByteArray result;
-    for (int i = 0; i < nameprepped.size(); ++i) {
-        ushort uc = nameprepped.at(i).unicode();
-        if (uc == 0x2e || uc == 0x3002 || uc == 0xff0e || uc == 0xff61) {
-            if (lastIdx)
-                result += '.';
-            toPunycodeHelper(nameprepped.constData() + lastIdx, i - lastIdx, &result);
-            lastIdx = i + 1;
-        }
-    }
-    if (lastIdx)
-        result += '.';
-    toPunycodeHelper(nameprepped.constData() + lastIdx, nameprepped.size() - lastIdx, &result);
-    
-    return result;
+    QString result = qt_ACE_do(domain, ToAceOnly);
+    return result.toLatin1();
 }
 
 /*!
diff --git a/src/corelib/kernel/kernel.pri b/src/corelib/kernel/kernel.pri
index f7d4208..4b7baef 100644
--- a/src/corelib/kernel/kernel.pri
+++ b/src/corelib/kernel/kernel.pri
@@ -86,10 +86,14 @@ mac {
 		kernel/qcore_mac.cpp
 }
 
-unix {
+unix:!symbian {
 	SOURCES += \
-                kernel/qcrashhandler.cpp
+                kernel/qcore_unix.cpp \
+                kernel/qcrashhandler.cpp \
+                kernel/qsharedmemory_unix.cpp \
+                kernel/qsystemsemaphore_unix.cpp
 	HEADERS += \
+                kernel/qcore_unix_p.h \
 		kernel/qcrashhandler_p.h
 
         contains(QT_CONFIG, glib) {
@@ -100,25 +104,27 @@ unix {
             QMAKE_CXXFLAGS += $$QT_CFLAGS_GLIB
             LIBS +=$$QT_LIBS_GLIB
         }
-
-        symbian {
             SOURCES += \
+                kernel/qeventdispatcher_unix.cpp
+            HEADERS += \
+                kernel/qeventdispatcher_unix_p.h
+
+   contains(QT_CONFIG, clock-gettime):include($$QT_SOURCE_TREE/config.tests/unix/clock-gettime/clock-gettime.pri)
+}
+
+symbian {
+	SOURCES += \
+                kernel/qcore_unix.cpp \
+                kernel/qcrashhandler.cpp \
                 kernel/qeventdispatcher_symbian.cpp \
                 kernel/qcore_symbian_p.cpp \
                 kernel/qsharedmemory_symbian.cpp \
                 kernel/qsystemsemaphore_symbian.cpp
-            HEADERS += \
+
+	HEADERS += \
+                kernel/qcore_unix_p.h \
+                kernel/qcrashhandler_p.h \
                 kernel/qeventdispatcher_symbian_p.h \
                 kernel/qcore_symbian_p.h
-        } else {
-            SOURCES += \
-                kernel/qeventdispatcher_unix.cpp \
-                kernel/qsharedmemory_unix.cpp \
-                kernel/qsystemsemaphore_unix.cpp
-            HEADERS += \
-                kernel/qeventdispatcher_unix_p.h
-        }
-
-   contains(QT_CONFIG, clock-gettime):include($$QT_SOURCE_TREE/config.tests/unix/clock-gettime/clock-gettime.pri)
 }
 
diff --git a/src/corelib/kernel/qabstracteventdispatcher.cpp b/src/corelib/kernel/qabstracteventdispatcher.cpp
index a98d005..e2682f5 100644
--- a/src/corelib/kernel/qabstracteventdispatcher.cpp
+++ b/src/corelib/kernel/qabstracteventdispatcher.cpp
@@ -398,20 +398,23 @@ void QAbstractEventDispatcher::closingDown()
 */
 
 /*!
-    Sets the event filter \a filter. Returns a pointer to the filter
-    function previously defined.
-
-    The event filter is a function that receives all messages taken
-    from the system event loop before the event is dispatched to the
-    respective target. This includes messages that are not sent to Qt
+    Replaces the event filter function for this
+    QAbstractEventDispatcher with \a filter and returns the replaced
+    event filter function. Only the current event filter function is
+    called. If you want to use both filter functions, save the
+    replaced EventFilter in a place where yours can call it.
+
+    The event filter function set here is called for all messages
+    taken from the system event loop before the event is dispatched to
+    the respective target, including the messages not meant for Qt
     objects.
 
-    The function can return true to stop the event to be processed by
-    Qt, or false to continue with the standard event processing.
+    The event filter function should return true if the message should
+    be filtered, (i.e. stopped). It should return false to allow
+    processing the message to continue.
 
-    Only one filter can be defined, but the filter can use the return
-    value to call the previously set event filter. By default, no
-    filter is set (i.e. the function returns 0).
+    By default, no event filter function is set (i.e., this function
+    returns a null EventFilter the first time it is called).
 */
 QAbstractEventDispatcher::EventFilter QAbstractEventDispatcher::setEventFilter(EventFilter filter)
 {
diff --git a/src/corelib/kernel/qabstractitemmodel.cpp b/src/corelib/kernel/qabstractitemmodel.cpp
index 914f44f..1c3371f 100644
--- a/src/corelib/kernel/qabstractitemmodel.cpp
+++ b/src/corelib/kernel/qabstractitemmodel.cpp
@@ -1407,7 +1407,7 @@ QMap<int, QVariant> QAbstractItemModel::itemData(const QModelIndex &index) const
     QMap<int, QVariant> roles;
     for (int i = 0; i < Qt::UserRole; ++i) {
         QVariant variantData = data(index, i);
-        if (variantData.type() != QVariant::Invalid)
+        if (variantData.isValid())
             roles.insert(i, variantData);
     }
     return roles;
diff --git a/src/corelib/kernel/qcore_unix.cpp b/src/corelib/kernel/qcore_unix.cpp
new file mode 100644
index 0000000..c5b0fc7
--- /dev/null
+++ b/src/corelib/kernel/qcore_unix.cpp
@@ -0,0 +1,194 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the QtCore module 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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at http://www.qtsoftware.com/contact.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qcore_unix_p.h"
+
+#include <sys/select.h>
+#include <sys/time.h>
+#include <stdlib.h>
+
+#include "qeventdispatcher_unix_p.h" // for the timeval operators
+
+#if !defined(QT_NO_CLOCK_MONOTONIC)
+# if defined(QT_BOOTSTRAPPED)
+#  define QT_NO_CLOCK_MONOTONIC
+# endif
+#endif
+
+QT_BEGIN_NAMESPACE
+
+static inline timeval gettime()
+{
+    timeval tv;
+#ifndef QT_NO_CLOCK_MONOTONIC
+    // use the monotonic clock
+    static volatile bool monotonicClockDisabled = false;
+    struct timespec ts;
+    if (!monotonicClockDisabled) {
+        if (clock_gettime(CLOCK_MONOTONIC, &ts) == -1) {
+            monotonicClockDisabled = true;
+        } else {
+            tv.tv_sec = ts.tv_sec;
+            tv.tv_usec = ts.tv_nsec / 1000;
+            return tv;
+        }
+    }
+#endif
+    // use gettimeofday
+    ::gettimeofday(&tv, 0);
+    return tv;
+}
+
+static inline bool time_update(struct timeval *tv, const struct timeval &start,
+                               const struct timeval &timeout)
+{
+    struct timeval now = gettime();
+    if (now < start) {
+        // clock reset, give up
+        return false;
+    }
+
+    *tv = timeout + start - now;
+    return true;
+}
+
+int qt_safe_select(int nfds, fd_set *fdread, fd_set *fdwrite, fd_set *fdexcept,
+                   const struct timeval *orig_timeout)
+{
+    if (!orig_timeout) {
+        // no timeout -> block forever
+        register int ret;
+        EINTR_LOOP(ret, select(nfds, fdread, fdwrite, fdexcept, 0));
+        return ret;
+    }
+
+    timeval start = gettime();
+    timeval timeout = *orig_timeout;
+
+    // loop and recalculate the timeout as needed
+    int ret;
+    forever {
+        ret = ::select(nfds, fdread, fdwrite, fdexcept, &timeout);
+        if (ret != -1 || errno != EINTR)
+            return ret;
+
+        // recalculate the timeout
+        if (!time_update(&timeout, start, *orig_timeout)) {
+            // clock reset, fake timeout error
+            return 0;
+        }
+    }
+}
+
+QT_END_NAMESPACE
+
+#ifdef Q_OS_LINUX
+// Don't wait for libc to supply the calls we need
+// Make syscalls directly
+
+# if defined(__GLIBC__) && (__GLIBC__ * 0x100 + __GLIBC_MINOR__) >= 0x0204
+// glibc 2.4 has syscall(...)
+#  include <sys/syscall.h>
+#  include <asm/unistd.h>
+# else
+// no syscall(...)
+static inline int syscall(...) { errno = ENOSYS; return -1;}
+# endif
+
+# ifndef __NR_dup3
+#  if defined(__i386__)
+#   define __NR_dup3        330
+#   define __NR_pipe2       331
+#  elif defined(__x86_64__)
+#   define __NR_dup3        292
+#   define __NR_pipe2       293
+#  elif defined(__ia64__)
+#   define __NR_dup3        1316
+#   define __NR_pipe2       1317
+#  else
+//  set the syscalls to absurd numbers so that they'll cause ENOSYS errors
+#   warning "Please port the pipe2/dup3 code to this platform"
+#   define __NR_dup3        -1
+#   define __NR_pipe2       -1
+#  endif
+# endif
+
+# if !defined(__NR_socketcall) && !defined(__NR_accept4)
+#  if defined(__x86_64__)
+#   define __NR_accept4     288
+#  elif defined(__ia64__)
+//  not assigned yet to IA-64
+#   define __NR_accept4     -1
+#  else
+//  set the syscalls to absurd numbers so that they'll cause ENOSYS errors
+#   warning "Please port the accept4 code to this platform"
+#   define __NR_accept4     -1
+#  endif
+# endif
+
+QT_BEGIN_NAMESPACE
+namespace QtLibcSupplement {
+    int pipe2(int pipes[], int flags)
+    {
+        return syscall(__NR_pipe2, pipes, flags);
+    }
+
+    int dup3(int oldfd, int newfd, int flags)
+    {
+        return syscall(__NR_dup3, oldfd, newfd, flags);
+    }
+
+    int accept4(int s, sockaddr *addr, QT_SOCKLEN_T *addrlen, int flags)
+    {
+# if defined(__NR_socketcall)
+        // This platform uses socketcall() instead of raw syscalls
+        // the SYS_ACCEPT4 number is cross-platform: 18
+        return syscall(__NR_socketcall, 18, &s);
+# else
+        return syscall(__NR_accept4, s, addr, addrlen, flags);
+# endif
+
+        Q_UNUSED(addr); Q_UNUSED(addrlen); Q_UNUSED(flags); // they're actually used
+    }
+}
+QT_END_NAMESPACE
+#endif  // Q_OS_LINUX
+
diff --git a/src/corelib/kernel/qcore_unix_p.h b/src/corelib/kernel/qcore_unix_p.h
new file mode 100644
index 0000000..dd97841
--- /dev/null
+++ b/src/corelib/kernel/qcore_unix_p.h
@@ -0,0 +1,275 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtCore module 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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at http://www.qtsoftware.com/contact.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QCORE_UNIX_P_H
+#define QCORE_UNIX_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists for the convenience
+// of Qt code on Unix. This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include "qplatformdefs.h"
+
+#ifndef Q_OS_UNIX
+# error "qcore_unix_p.h included on a non-Unix system"
+#endif
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+#include <sys/wait.h>
+#include <errno.h>
+#include <fcntl.h>
+
+struct sockaddr;
+
+#if defined(Q_OS_LINUX) && defined(__GLIBC__) && (__GLIBC__ * 0x100 + __GLIBC_MINOR__) >= 0x0204
+// Linux supports thread-safe FD_CLOEXEC
+# define QT_UNIX_SUPPORTS_THREADSAFE_CLOEXEC 1
+
+// add defines for the consts for Linux
+# ifndef O_CLOEXEC
+#  define O_CLOEXEC  02000000
+# endif
+# ifndef FD_DUPFD_CLOEXEC
+#  define F_DUPFD_CLOEXEC 1030
+# endif
+# ifndef SOCK_CLOEXEC
+#  define SOCK_CLOEXEC O_CLOEXEC
+# endif
+# ifndef SOCK_NONBLOCK
+#  define SOCK_NONBLOCK O_NONBLOCK
+# endif
+# ifndef MSG_CMSG_CLOEXEC
+#  define MSG_CMSG_CLOEXEC 0x40000000
+# endif
+
+QT_BEGIN_NAMESPACE
+namespace QtLibcSupplement {
+    Q_CORE_EXPORT int accept4(int, sockaddr *, QT_SOCKLEN_T *, int flags);
+    Q_CORE_EXPORT int dup3(int oldfd, int newfd, int flags);
+    Q_CORE_EXPORT int pipe2(int pipes[], int flags);
+}
+QT_END_NAMESPACE
+using namespace QT_PREPEND_NAMESPACE(QtLibcSupplement);
+
+#else
+# define QT_UNIX_SUPPORTS_THREADSAFE_CLOEXEC 0
+#endif
+
+#define EINTR_LOOP(var, cmd)                    \
+    do {                                        \
+        var = cmd;                              \
+    } while (var == -1 && errno == EINTR)
+
+QT_BEGIN_NAMESPACE
+
+// don't call QT_OPEN or ::open
+// call qt_safe_open
+static inline int qt_safe_open(const char *pathname, int flags, mode_t mode = 0777)
+{
+#ifdef O_CLOEXEC
+    flags |= O_CLOEXEC;
+#endif
+    register int fd;
+    EINTR_LOOP(fd, QT_OPEN(pathname, flags, mode));
+
+    // unknown flags are ignored, so we have no way of verifying if
+    // O_CLOEXEC was accepted
+    if (fd != -1)
+        ::fcntl(fd, F_SETFD, FD_CLOEXEC);
+    return fd;
+}
+#undef QT_OPEN
+#define QT_OPEN         qt_safe_open
+
+// don't call ::pipe
+// call qt_safe_pipe
+static inline int qt_safe_pipe(int pipefd[2], int flags = 0)
+{
+#ifdef O_CLOEXEC
+    Q_ASSERT((flags & ~(O_CLOEXEC | O_NONBLOCK)) == 0);
+#else
+    Q_ASSERT((flags & ~O_NONBLOCK) == 0);
+#endif
+
+    register int ret;
+#if QT_UNIX_SUPPORTS_THREADSAFE_CLOEXEC
+    // use pipe2
+    flags |= O_CLOEXEC;
+    ret = ::pipe2(pipefd, flags); // pipe2 is Linux-specific and is documented not to return EINTR
+    if (ret == 0 || errno != ENOSYS)
+        return ret;
+#endif
+
+    ret = ::pipe(pipefd);
+    if (ret == -1)
+        return -1;
+
+    ::fcntl(pipefd[0], F_SETFD, FD_CLOEXEC);
+    ::fcntl(pipefd[1], F_SETFD, FD_CLOEXEC);
+
+    // set non-block too?
+    if (flags & O_NONBLOCK) {
+        ::fcntl(pipefd[0], F_SETFL, ::fcntl(pipefd[0], F_GETFL) | O_NONBLOCK);
+        ::fcntl(pipefd[1], F_SETFL, ::fcntl(pipefd[1], F_GETFL) | O_NONBLOCK);
+    }
+
+    return 0;
+}
+
+// don't call dup or fcntl(F_DUPFD)
+static inline int qt_safe_dup(int oldfd, int atleast = 0, int flags = FD_CLOEXEC)
+{
+    Q_ASSERT(flags == FD_CLOEXEC || flags == 0);
+
+    register int ret;
+#ifdef F_DUPFD_CLOEXEC
+    // use this fcntl
+    if (flags & FD_CLOEXEC) {
+        ret = ::fcntl(oldfd, F_DUPFD_CLOEXEC, atleast);
+        if (ret != -1 || errno != EINVAL)
+            return ret;
+    }
+#endif
+
+    // use F_DUPFD
+    ret = ::fcntl(oldfd, F_DUPFD, atleast);
+
+    if (flags && ret != -1)
+        ::fcntl(ret, F_SETFD, flags);
+    return ret;
+}
+
+// don't call dup2
+// call qt_safe_dup2
+static inline int qt_safe_dup2(int oldfd, int newfd, int flags = FD_CLOEXEC)
+{
+    Q_ASSERT(flags == FD_CLOEXEC || flags == 0);
+
+    register int ret;
+#if QT_UNIX_SUPPORTS_THREADSAFE_CLOEXEC
+    // use dup3
+    if (flags & FD_CLOEXEC) {
+        EINTR_LOOP(ret, ::dup3(oldfd, newfd, O_CLOEXEC));
+        if (ret == 0 || errno != ENOSYS)
+            return ret;
+    }
+#endif
+    EINTR_LOOP(ret, ::dup2(oldfd, newfd));
+    if (ret == -1)
+        return -1;
+
+    if (flags)
+        ::fcntl(newfd, F_SETFD, flags);
+    return 0;
+}
+
+static inline qint64 qt_safe_read(int fd, void *data, qint64 maxlen)
+{
+    qint64 ret = 0;
+    EINTR_LOOP(ret, QT_READ(fd, data, maxlen));
+    return ret;
+}
+#undef QT_READ
+#define QT_READ qt_safe_read
+
+static inline qint64 qt_safe_write(int fd, const void *data, qint64 len)
+{
+    qint64 ret = 0;
+    EINTR_LOOP(ret, QT_WRITE(fd, data, len));
+    return ret;
+}
+#undef QT_WRITE
+#define QT_WRITE qt_safe_write
+
+static inline int qt_safe_close(int fd)
+{
+    register int ret;
+    EINTR_LOOP(ret, QT_CLOSE(fd));
+    return ret;
+}
+#undef QT_CLOSE
+#define QT_CLOSE qt_safe_close
+
+static inline int qt_safe_execve(const char *filename, char *const argv[],
+                                 char *const envp[])
+{
+    register int ret;
+    EINTR_LOOP(ret, ::execve(filename, argv, envp));
+    return ret;
+}
+
+static inline int qt_safe_execv(const char *path, char *const argv[])
+{
+    register int ret;
+    EINTR_LOOP(ret, ::execv(path, argv));
+    return ret;
+}
+
+static inline int qt_safe_execvp(const char *file, char *const argv[])
+{
+    register int ret;
+    EINTR_LOOP(ret, ::execvp(file, argv));
+    return ret;
+}
+
+static inline pid_t qt_safe_waitpid(pid_t pid, int *status, int options)
+{
+    register int ret;
+    EINTR_LOOP(ret, ::waitpid(pid, status, options));
+    return ret;
+}
+
+Q_CORE_EXPORT int qt_safe_select(int nfds, fd_set *fdread, fd_set *fdwrite, fd_set *fdexcept,
+                                 const struct timeval *tv);
+
+QT_END_NAMESPACE
+
+#endif
diff --git a/src/corelib/kernel/qcoreapplication.cpp b/src/corelib/kernel/qcoreapplication.cpp
index c07a6e9..5865dc3 100644
--- a/src/corelib/kernel/qcoreapplication.cpp
+++ b/src/corelib/kernel/qcoreapplication.cpp
@@ -1729,6 +1729,12 @@ QString QCoreApplication::translate(const char *context, const char *sourceText,
     return result;
 }
 
+// Declared in qglobal.h
+QString qtTrId(const char *id, int n)
+{
+    return QCoreApplication::translate(0, id, 0, QCoreApplication::UnicodeUTF8, n);
+}
+
 bool QCoreApplicationPrivate::isTranslatorInstalled(QTranslator *translator)
 {
     return QCoreApplication::self
@@ -1824,21 +1830,8 @@ QString QCoreApplication::applicationFilePath()
     if (!d->cachedApplicationFilePath.isNull())
         return d->cachedApplicationFilePath;
 
-#if defined( Q_WS_WIN )
-    QFileInfo filePath;
-    QT_WA({
-        wchar_t module_name[MAX_PATH+1];
-        GetModuleFileNameW(0, module_name, MAX_PATH);
-        module_name[MAX_PATH] = 0;
-        filePath = QString::fromUtf16((ushort *)module_name);
-    }, {
-        char module_name[MAX_PATH+1];
-        GetModuleFileNameA(0, module_name, MAX_PATH);
-        module_name[MAX_PATH] = 0;
-        filePath = QString::fromLocal8Bit(module_name);
-    });
-
-    d->cachedApplicationFilePath = filePath.filePath();
+#if defined(Q_WS_WIN)
+    d->cachedApplicationFilePath = QFileInfo(qAppFileName()).filePath();
     return d->cachedApplicationFilePath;
 #elif defined(Q_WS_MAC)
     QString qAppFileName_str = qAppFileName();
@@ -1998,13 +1991,13 @@ QStringList QCoreApplication::arguments()
         return list;
     }
 #ifdef Q_OS_WIN
-    QString cmdline = QT_WA_INLINE(QString::fromUtf16((unsigned short *)GetCommandLineW()), QString::fromLocal8Bit(GetCommandLineA()));
+    QString cmdline = QString::fromWCharArray(GetCommandLine());
 
 #if defined(Q_OS_WINCE)
     wchar_t tempFilename[MAX_PATH+1];
-    if (GetModuleFileNameW(0, tempFilename, MAX_PATH)) {
+    if (GetModuleFileName(0, tempFilename, MAX_PATH)) {
         tempFilename[MAX_PATH] = 0;
-        cmdline.prepend(QLatin1Char('\"') + QString::fromUtf16((unsigned short *)tempFilename) + QLatin1String("\" "));
+        cmdline.prepend(QLatin1Char('\"') + QString::fromWCharArray(tempFilename) + QLatin1String("\" "));
     }
 #endif // Q_OS_WINCE
 
@@ -2311,21 +2304,37 @@ void QCoreApplication::removeLibraryPath(const QString &path)
 /*!
     \fn EventFilter QCoreApplication::setEventFilter(EventFilter filter)
 
-    Sets the event filter \a filter. Returns a pointer to the filter
-    function previously defined.
-
-    The event filter is a function that is called for every message
-    received in all threads. This does \e not include messages to
+    Replaces the event filter function for the QCoreApplication with
+    \a filter and returns the pointer to the replaced event filter
+    function. Only the current event filter function is called. If you
+    want to use both filter functions, save the replaced EventFilter
+    in a place where yours can call it.
+
+    The event filter function set here is called for all messages
+    received by all threads meant for all Qt objects. It is \e not
+    called for messages that are not meant for Qt objects.
+
+    The event filter function should return true if the message should
+    be filtered, (i.e. stopped). It should return false to allow
+    processing the message to continue.
+
+    By default, no event filter function is set (i.e., this function
+    returns a null EventFilter the first time it is called).
+    
+    \note The filter function set here receives native messages,
+    i.e. MSG or XEvent structs, that are going to Qt objects. It is
+    called by QCoreApplication::filterEvent(). If the filter function
+    returns false to indicate the message should be processed further,
+    the native message can then be translated into a QEvent and
+    handled by the standard Qt \l{QEvent} {event} filering, e.g.
+    QObject::installEventFilter().
+
+    \note The filter function set here is different form the filter
+    function set via QAbstractEventDispatcher::setEventFilter(), which
+    gets all messages received by its thread, even messages meant for
     objects that are not handled by Qt.
 
-    The function can return true to stop the event to be processed by
-    Qt, or false to continue with the standard event processing.
-
-    Only one filter can be defined, but the filter can use the return
-    value to call the previously set event filter. By default, no
-    filter is set (i.e., the function returns 0).
-
-    \sa installEventFilter()
+    \sa QObject::installEventFilter(), QAbstractEventDispatcher::setEventFilter()
 */
 QCoreApplication::EventFilter
 QCoreApplication::setEventFilter(QCoreApplication::EventFilter filter)
diff --git a/src/corelib/kernel/qcoreapplication_win.cpp b/src/corelib/kernel/qcoreapplication_win.cpp
index 7a35340..bf5716a 100644
--- a/src/corelib/kernel/qcoreapplication_win.cpp
+++ b/src/corelib/kernel/qcoreapplication_win.cpp
@@ -45,14 +45,15 @@
 #include "qt_windows.h"
 #include "qvector.h"
 #include "qmutex.h"
+#include "qfileinfo.h"
 #include "qcorecmdlineargs_p.h"
 #include <private/qthread_p.h>
 #include <ctype.h>
 
 QT_BEGIN_NAMESPACE
 
-char         appFileName[MAX_PATH+1];                // application file name
-char         theAppName[MAX_PATH+1];                        // application name
+char         appFileName[MAX_PATH];                // application file name
+char         theAppName[MAX_PATH];                        // application name
 HINSTANCE appInst        = 0;                // handle to app instance
 HINSTANCE appPrevInst        = 0;                // handle to prev app instance
 int appCmdShow = 0;
@@ -73,48 +74,69 @@ Q_CORE_EXPORT int qWinAppCmdShow()                        // get main window sho
     return appCmdShow;
 }
 
+Q_CORE_EXPORT QString qAppFileName()                // get application file name
+{
+    // We do MAX_PATH + 2 here, and request with MAX_PATH + 1, so we can handle all paths
+    // up to, and including MAX_PATH size perfectly fine with string termination, as well
+    // as easily detect if the file path is indeed larger than MAX_PATH, in which case we
+    // need to use the heap instead. This is a work-around, since contrary to what the
+    // MSDN documentation states, GetModuleFileName sometimes doesn't set the
+    // ERROR_INSUFFICIENT_BUFFER error number, and we thus cannot rely on this value if
+    // GetModuleFileName(0, buffer, MAX_PATH) == MAX_PATH.
+    // GetModuleFileName(0, buffer, MAX_PATH + 1) == MAX_PATH just means we hit the normal
+    // file path limit, and we handle it normally, if the result is MAX_PATH + 1, we use
+    // heap (even if the result _might_ be exactly MAX_PATH + 1, but that's ok).
+    wchar_t buffer[MAX_PATH + 2];
+    DWORD v = GetModuleFileName(0, buffer, MAX_PATH + 1);
+    buffer[MAX_PATH + 1] = 0;
+
+    if (v == 0)
+        return QString();
+    else if (v <= MAX_PATH)
+        return QString::fromWCharArray(buffer);
+
+    // MAX_PATH sized buffer wasn't large enough to contain the full path, use heap
+    wchar_t *b = 0;
+    int i = 1;
+    size_t size;
+    do {
+        ++i;
+        size = MAX_PATH * i;
+        b = reinterpret_cast<wchar_t *>(realloc(b, (size + 1) * sizeof(wchar_t)));
+        if (b)
+            v = GetModuleFileName(NULL, b, size);
+    } while (b && v == size);
+
+    if (b)
+        *(b + size) = 0;
+    QString res = QString::fromWCharArray(b);
+    free(b);
+
+    return res;
+}
 
 void set_winapp_name()
 {
     static bool already_set = false;
     if (!already_set) {
         already_set = true;
-#ifndef Q_OS_WINCE
-        GetModuleFileNameA(0, appFileName, sizeof(appFileName));
-        appFileName[sizeof(appFileName)-1] = 0;
-#else
-        QString afm;
-        afm.resize(sizeof(appFileName));
-        afm.resize(GetModuleFileName(0, (wchar_t *) (afm.unicode()), sizeof(appFileName)));
-        memcpy(appFileName, afm.toLatin1(), sizeof(appFileName));
-#endif
-        const char *p = strrchr(appFileName, '\\');        // skip path
-        if (p)
-            memcpy(theAppName, p+1, qstrlen(p));
-        int l = qstrlen(theAppName);
-        if ((l > 4) && !qstricmp(theAppName + l - 4, ".exe"))
-            theAppName[l-4] = '\0';                // drop .exe extension
-
-        if (appInst == 0) {
-            QT_WA({
-                appInst = GetModuleHandle(0);
-            }, {
-                appInst = GetModuleHandleA(0);
-            });
-        }
-    }
-}
 
-Q_CORE_EXPORT QString qAppFileName()                // get application file name
-{
-    return QString::fromLatin1(appFileName);
+        QString moduleName = qAppFileName();
+
+        QByteArray filePath = moduleName.toLocal8Bit();
+        QByteArray fileName = QFileInfo(moduleName).baseName().toLocal8Bit();
+
+        memcpy(appFileName, filePath.constData(), filePath.length());
+        memcpy(theAppName, fileName.constData(), fileName.length());
+
+        if (appInst == 0)
+            appInst = GetModuleHandle(0);
+    }
 }
 
 QString QCoreApplicationPrivate::appName() const
 {
-    if (!theAppName[0])
-        set_winapp_name();
-    return QString::fromLatin1(theAppName);
+    return QFileInfo(qAppFileName()).baseName();
 }
 
 class QWinMsgHandlerCriticalSection
@@ -145,15 +167,11 @@ Q_CORE_EXPORT void qWinMsgHandler(QtMsgType t, const char* str)
         str = "(null)";
 
     staticCriticalSection.lock();
-    QT_WA({
-        QString s(QString::fromLocal8Bit(str));
-        s += QLatin1Char('\n');
-        OutputDebugStringW((TCHAR*)s.utf16());
-    }, {
-        QByteArray s(str);
-        s += '\n';
-        OutputDebugStringA(s.data());
-    })
+
+    QString s(QString::fromLocal8Bit(str));
+    s += QLatin1Char('\n');
+    OutputDebugString((wchar_t*)s.utf16());
+
     staticCriticalSection.unlock();
 }
 
@@ -262,7 +280,7 @@ QT_END_INCLUDE_NAMESPACE
 // The values below should never change. Note that none of the usual
 // WM_...FIRST & WM_...LAST values are in the list, as they normally have other
 // WM_... representations
-struct {
+struct KnownWM {
     uint WM;
     const char* str;
 } knownWM[] =
@@ -564,7 +582,7 @@ struct {
  { 0,0 }}; // End of known messages
 
 // Looks up the WM_ message in the table above
-const char* findWMstr(uint msg)
+static const char* findWMstr(uint msg)
 {
     uint i = 0;
     const char* result = 0;
diff --git a/src/corelib/kernel/qcorecmdlineargs_p.h b/src/corelib/kernel/qcorecmdlineargs_p.h
index c0dd813..a012b4e 100644
--- a/src/corelib/kernel/qcorecmdlineargs_p.h
+++ b/src/corelib/kernel/qcorecmdlineargs_p.h
@@ -135,9 +135,9 @@ static inline QStringList qWinCmdArgs(QString cmdLine) // not const-ref: this mi
     QStringList args;
 
     int argc = 0;
-    QVector<ushort*> argv = qWinCmdLine<ushort>((ushort*)cmdLine.utf16(), cmdLine.length(), argc);
+    QVector<wchar_t*> argv = qWinCmdLine<wchar_t>((wchar_t *)cmdLine.utf16(), cmdLine.length(), argc);
     for (int a = 0; a < argc; ++a) {
-        args << QString::fromUtf16(argv[a]);
+        args << QString::fromWCharArray(argv[a]);
     }
 
     return args;
@@ -147,10 +147,7 @@ static inline QStringList qCmdLineArgs(int argc, char *argv[])
 {
     Q_UNUSED(argc)
     Q_UNUSED(argv)
-    QString cmdLine = QT_WA_INLINE(
-        QString::fromUtf16((unsigned short*)GetCommandLineW()),
-        QString::fromLocal8Bit(GetCommandLineA())
-    );
+    QString cmdLine = QString::fromWCharArray(GetCommandLine());
     return qWinCmdArgs(cmdLine);
 }
 
diff --git a/src/corelib/kernel/qcoreevent.cpp b/src/corelib/kernel/qcoreevent.cpp
index 0ffd6f7..3cb8fe6 100644
--- a/src/corelib/kernel/qcoreevent.cpp
+++ b/src/corelib/kernel/qcoreevent.cpp
@@ -221,14 +221,13 @@ QT_BEGIN_NAMESPACE
     \value WindowStateChange                The \l{QWidget::windowState()}{window's state} (minimized, maximized or full-screen) has changed (QWindowStateChangeEvent).
     \value WindowTitleChange                The window title has changed.
     \value WindowUnblocked                  The window is unblocked after a modal dialog exited.
+    \value Wrapped                          The event is a wrapper for, i.e., contains, another event (QWrappedEvent).
     \value ZOrderChange                     The widget's z-order has changed. This event is never sent to top level windows.
     \value KeyboardLayoutChange             The keyboard layout has changed.
     \value DynamicPropertyChange            A dynamic property was added, changed or removed from the object.
     \value TouchBegin                       Beginning of a sequence of touch-screen and/or track-pad events (QTouchEvent)
     \value TouchUpdate                      Touch-screen event (QTouchEvent)
     \value TouchEnd                         End of touch-event sequence (QTouchEvent)
-    \value Gesture                          A gesture has occured.
-    \value GraphicsSceneGesture             A gesture has occured on a graphics scene.
 
     User events should have values between \c User and \c{MaxUser}:
 
@@ -271,9 +270,9 @@ QT_BEGIN_NAMESPACE
     \omitvalue NetworkReplyUpdated
     \omitvalue FutureCallOut
     \omitvalue CocoaRequestModal
-    \omitvalue Wrapped
     \omitvalue Signal
     \omitvalue SymbianDeferredFocusChanged
+    \omitvalue WinGesture
 */
 
 /*!
diff --git a/src/corelib/kernel/qcoreevent.h b/src/corelib/kernel/qcoreevent.h
index efa9fd3..c361fd5 100644
--- a/src/corelib/kernel/qcoreevent.h
+++ b/src/corelib/kernel/qcoreevent.h
@@ -276,8 +276,7 @@ public:
         TouchUpdate = 195,
         TouchEnd = 196,
 
-        Gesture = 197,
-        GraphicsSceneGesture = 198,
+        WinGesture = 197,
 
         RequestSoftwareInputPanel = 199,
         CloseSoftwareInputPanel = 200,
diff --git a/src/corelib/kernel/qeventdispatcher_unix.cpp b/src/corelib/kernel/qeventdispatcher_unix.cpp
index 67f2cd0..288b381 100644
--- a/src/corelib/kernel/qeventdispatcher_unix.cpp
+++ b/src/corelib/kernel/qeventdispatcher_unix.cpp
@@ -49,6 +49,7 @@
 #include "qeventdispatcher_unix_p.h"
 #include <private/qthread_p.h>
 #include <private/qcoreapplication_p.h>
+#include <private/qcore_unix_p.h>
 
 #include <errno.h>
 #include <stdio.h>
@@ -58,10 +59,33 @@
 #  include <sys/times.h>
 #endif
 
+#ifdef Q_OS_MAC
+#include <mach/mach_time.h>
+#endif
+
 QT_BEGIN_NAMESPACE
 
 Q_CORE_EXPORT bool qt_disable_lowpriority_timers=false;
 
+// check for _POSIX_MONOTONIC_CLOCK support
+static bool supportsMonotonicClock()
+{
+    bool returnValue;
+
+#if (_POSIX_MONOTONIC_CLOCK-0 <= 0) && !defined(Q_OS_MAC)
+    returnValue = false;
+#  if (_POSIX_MONOTONIC_CLOCK == 0)
+    // detect if the system support monotonic timers
+    long x = sysconf(_SC_MONOTONIC_CLOCK);
+    returnValue = x >= 200112L;
+#  endif
+#else
+    returnValue = true;
+#endif
+
+    return returnValue;
+}
+
 /*****************************************************************************
  UNIX signal handling
  *****************************************************************************/
@@ -76,6 +100,7 @@ static void signalHandler(int sig)
 }
 
 
+#ifdef Q_OS_INTEGRITY
 static void initThreadPipeFD(int fd)
 {
     int ret = fcntl(fd, F_SETFD, FD_CLOEXEC);
@@ -90,7 +115,7 @@ static void initThreadPipeFD(int fd)
     if (ret == -1)
         perror("QEventDispatcherUNIXPrivate: Unable to set flags on thread pipe");
 }
-
+#endif
 
 QEventDispatcherUNIXPrivate::QEventDispatcherUNIXPrivate()
 {
@@ -102,13 +127,13 @@ QEventDispatcherUNIXPrivate::QEventDispatcherUNIXPrivate()
     // INTEGRITY doesn't like a "select" on pipes, so use socketpair instead
     if (socketpair(AF_INET, SOCK_STREAM, PF_INET, thread_pipe) == -1)
         perror("QEventDispatcherUNIXPrivate(): Unable to create socket pair");
-#else
-    if (pipe(thread_pipe) == -1)
-        perror("QEventDispatcherUNIXPrivate(): Unable to create thread pipe");
-#endif
 
     initThreadPipeFD(thread_pipe[0]);
     initThreadPipeFD(thread_pipe[1]);
+#else
+    if (qt_safe_pipe(thread_pipe, O_NONBLOCK) == -1)
+        perror("QEventDispatcherUNIXPrivate(): Unable to create thread pipe");
+#endif
 
     sn_highest = -1;
 
@@ -256,18 +281,11 @@ int QEventDispatcherUNIXPrivate::doSelect(QEventLoop::ProcessEventsFlags flags,
  */
 
 QTimerInfoList::QTimerInfoList()
+    : useMonotonicTimers(supportsMonotonicClock())
 {
-#if (_POSIX_MONOTONIC_CLOCK-0 <= 0)
-    useMonotonicTimers = false;
-
-#  if (_POSIX_MONOTONIC_CLOCK == 0)
-    // detect if the system support monotonic timers
-    long x = sysconf(_SC_MONOTONIC_CLOCK);
-    useMonotonicTimers = x != -1;
-#  endif
-
     getTime(currentTime);
 
+#if (_POSIX_MONOTONIC_CLOCK-0 <= 0) && !defined(Q_OS_MAC)
     if (!useMonotonicTimers) {
         // not using monotonic timers, initialize the timeChanged() machinery
         previousTime = currentTime;
@@ -284,9 +302,6 @@ QTimerInfoList::QTimerInfoList()
         ticksPerSecond = 0;
         msPerTick = 0;
     }
-#else
-    // using monotonic timers unconditionally
-    getTime(currentTime);
 #endif
 
     firstTimerInfo = currentTimerInfo = 0;
@@ -298,7 +313,21 @@ timeval QTimerInfoList::updateCurrentTime()
     return currentTime;
 }
 
-#if (_POSIX_MONOTONIC_CLOCK-0 <= 0) || defined(QT_BOOTSTRAPPED)
+#if ((_POSIX_MONOTONIC_CLOCK-0 <= 0) && !defined(Q_OS_MAC)) || defined(QT_BOOTSTRAPPED)
+
+template <>
+timeval qAbs(const timeval &t)
+{
+    timeval tmp = t;
+    if (tmp.tv_sec < 0) {
+        tmp.tv_sec = -tmp.tv_sec - 1;
+        tmp.tv_usec -= 1000000;
+    }
+    if (tmp.tv_sec == 0 && tmp.tv_usec < 0) {
+        tmp.tv_usec = -tmp.tv_usec;
+    }
+    return normalizedTimeval(tmp);
+}
 
 /*
   Returns true if the real time clock has changed by more than 10%
@@ -312,23 +341,27 @@ bool QTimerInfoList::timeChanged(timeval *delta)
     tms unused;
     clock_t currentTicks = times(&unused);
 
-    int elapsedTicks = currentTicks - previousTicks;
+    clock_t elapsedTicks = currentTicks - previousTicks;
     timeval elapsedTime = currentTime - previousTime;
-    int elapsedMsecTicks = (elapsedTicks * 1000) / ticksPerSecond;
-    int deltaMsecs = (elapsedTime.tv_sec * 1000 + elapsedTime.tv_usec / 1000)
-                     - elapsedMsecTicks;
 
-    if (delta) {
-	delta->tv_sec = deltaMsecs / 1000;
-	delta->tv_usec = (deltaMsecs % 1000) * 1000;
-    }
+    timeval elapsedTimeTicks;
+    elapsedTimeTicks.tv_sec = elapsedTicks / ticksPerSecond;
+    elapsedTimeTicks.tv_usec = (((elapsedTicks * 1000) / ticksPerSecond) % 1000) * 1000;
+
+    timeval dummy;
+    if (!delta)
+        delta = &dummy;
+    *delta = elapsedTime - elapsedTimeTicks;
+
     previousTicks = currentTicks;
     previousTime = currentTime;
 
     // If tick drift is more than 10% off compared to realtime, we assume that the clock has
     // been set. Of course, we have to allow for the tick granularity as well.
-
-     return (qAbs(deltaMsecs) - msPerTick) * 10 > elapsedMsecTicks;
+    timeval tickGranularity;
+    tickGranularity.tv_sec = 0;
+    tickGranularity.tv_usec = msPerTick * 1000;
+    return elapsedTimeTicks < ((qAbs(*delta) - tickGranularity) * 10);
 }
 
 void QTimerInfoList::getTime(timeval &t)
@@ -373,10 +406,21 @@ void QTimerInfoList::repairTimersIfNeeded()
 
 void QTimerInfoList::getTime(timeval &t)
 {
+#if defined(Q_OS_MAC)
+    static mach_timebase_info_data_t info = {0,0};
+    if (info.denom == 0)
+        mach_timebase_info(&info);
+
+    uint64_t cpu_time = mach_absolute_time();
+    uint64_t nsecs = cpu_time * (info.numer / info.denom);
+    t.tv_sec = nsecs * 1e-9;
+    t.tv_usec = nsecs * 1e-3 - (t.tv_sec * 1e6);
+#else
     timespec ts;
     clock_gettime(CLOCK_MONOTONIC, &ts);
     t.tv_sec = ts.tv_sec;
     t.tv_usec = ts.tv_nsec / 1000;
+#endif
 }
 
 void QTimerInfoList::repairTimersIfNeeded()
@@ -407,7 +451,7 @@ void QTimerInfoList::timerRepair(const timeval &diff)
     // repair all timers
     for (int i = 0; i < size(); ++i) {
         register QTimerInfo *t = at(i);
-        t->timeout = t->timeout - diff;
+        t->timeout = t->timeout + diff;
     }
 }
 
@@ -608,7 +652,7 @@ int QEventDispatcherUNIX::select(int nfds, fd_set *readfds, fd_set *writefds, fd
                                  timeval *timeout)
 {
     Q_D(QEventDispatcherUNIX);
-    if (timeout) {
+    if (timeout && d->timerList.useMonotonicTimers) {
         // handle the case where select returns with a timeout, too
         // soon.
         timeval tvStart = d->timerList.currentTime;
diff --git a/src/corelib/kernel/qeventdispatcher_unix_p.h b/src/corelib/kernel/qeventdispatcher_unix_p.h
index e0ac5da..88d645e 100644
--- a/src/corelib/kernel/qeventdispatcher_unix_p.h
+++ b/src/corelib/kernel/qeventdispatcher_unix_p.h
@@ -72,6 +72,18 @@ QT_BEGIN_NAMESPACE
 #endif
 
 // Internal operator functions for timevals
+inline timeval &normalizedTimeval(timeval &t)
+{
+    while (t.tv_usec > 1000000l) {
+        ++t.tv_sec;
+        t.tv_usec -= 1000000l;
+    }
+    while (t.tv_usec < 0l) {
+        --t.tv_sec;
+        t.tv_usec += 1000000l;
+    }
+    return t;
+}
 inline bool operator<(const timeval &t1, const timeval &t2)
 { return t1.tv_sec < t2.tv_sec || (t1.tv_sec == t2.tv_sec && t1.tv_usec < t2.tv_usec); }
 inline bool operator==(const timeval &t1, const timeval &t2)
@@ -79,31 +91,29 @@ inline bool operator==(const timeval &t1, const timeval &t2)
 inline timeval &operator+=(timeval &t1, const timeval &t2)
 {
     t1.tv_sec += t2.tv_sec;
-    if ((t1.tv_usec += t2.tv_usec) >= 1000000l) {
-        ++t1.tv_sec;
-        t1.tv_usec -= 1000000l;
-    }
-    return t1;
+    t1.tv_usec += t2.tv_usec;
+    return normalizedTimeval(t1);
 }
 inline timeval operator+(const timeval &t1, const timeval &t2)
 {
     timeval tmp;
     tmp.tv_sec = t1.tv_sec + t2.tv_sec;
-    if ((tmp.tv_usec = t1.tv_usec + t2.tv_usec) >= 1000000l) {
-        ++tmp.tv_sec;
-        tmp.tv_usec -= 1000000l;
-    }
-    return tmp;
+    tmp.tv_usec = t1.tv_usec + t2.tv_usec;
+    return normalizedTimeval(tmp);
 }
 inline timeval operator-(const timeval &t1, const timeval &t2)
 {
     timeval tmp;
-    tmp.tv_sec = t1.tv_sec - t2.tv_sec;
-    if ((tmp.tv_usec = t1.tv_usec - t2.tv_usec) < 0l) {
-        --tmp.tv_sec;
-        tmp.tv_usec += 1000000l;
-    }
-    return tmp;
+    tmp.tv_sec = t1.tv_sec - (t2.tv_sec - 1);
+    tmp.tv_usec = t1.tv_usec - (t2.tv_usec + 1000000);
+    return normalizedTimeval(tmp);
+}
+inline timeval operator*(const timeval &t1, int mul)
+{
+    timeval tmp;
+    tmp.tv_sec = t1.tv_sec * mul;
+    tmp.tv_usec = t1.tv_usec * mul;
+    return normalizedTimeval(tmp);
 }
 
 // internal timer info
@@ -117,9 +127,7 @@ struct QTimerInfo {
 
 class QTimerInfoList : public QList<QTimerInfo*>
 {
-#if (_POSIX_MONOTONIC_CLOCK-0 <= 0) || defined(QT_BOOTSTRAPPED)
-    bool useMonotonicTimers;
-
+#if ((_POSIX_MONOTONIC_CLOCK-0 <= 0) && !defined(Q_OS_MAC)) || defined(QT_BOOTSTRAPPED)
     timeval previousTime;
     clock_t previousTicks;
     int ticksPerSecond;
@@ -134,6 +142,8 @@ class QTimerInfoList : public QList<QTimerInfo*>
 public:
     QTimerInfoList();
 
+    const bool useMonotonicTimers;
+
     void getTime(timeval &t);
 
     timeval currentTime;
diff --git a/src/corelib/kernel/qeventdispatcher_win.cpp b/src/corelib/kernel/qeventdispatcher_win.cpp
index cb1549c..33b66f5 100644
--- a/src/corelib/kernel/qeventdispatcher_win.cpp
+++ b/src/corelib/kernel/qeventdispatcher_win.cpp
@@ -355,8 +355,7 @@ QEventDispatcherWin32Private::QEventDispatcherWin32Private()
 {
     resolveTimerAPI();
 
-    wakeUpNotifier.setHandle(QT_WA_INLINE(CreateEventW(0, FALSE, FALSE, 0),
-                                          CreateEventA(0, FALSE, FALSE, 0)));
+    wakeUpNotifier.setHandle(CreateEvent(0, FALSE, FALSE, 0));
     if (!wakeUpNotifier.handle())
         qWarning("QEventDispatcher: Creating QEventDispatcherWin32Private wakeup event failed");
 }
@@ -367,13 +366,8 @@ QEventDispatcherWin32Private::~QEventDispatcherWin32Private()
     CloseHandle(wakeUpNotifier.handle());
     if (internalHwnd)
         DestroyWindow(internalHwnd);
-    QByteArray className = "QEventDispatcherWin32_Internal_Widget" + QByteArray::number(quintptr(qt_internal_proc));
-#if !defined(Q_OS_WINCE)
-    UnregisterClassA(className.constData(), qWinAppInst());
-#else
-    UnregisterClassW(reinterpret_cast<const wchar_t *> (QString::fromLatin1(className.constData()).utf16())
-                     , qWinAppInst());
-#endif
+    QString className = QLatin1String("QEventDispatcherWin32_Internal_Widget") + QString::number(quintptr(qt_internal_proc));
+    UnregisterClass((wchar_t*)className.utf16(), qWinAppInst());
 }
 
 void QEventDispatcherWin32Private::activateEventNotifier(QWinEventNotifier * wen)
@@ -382,18 +376,24 @@ void QEventDispatcherWin32Private::activateEventNotifier(QWinEventNotifier * wen
     QCoreApplication::sendEvent(wen, &event);
 }
 
-
+// ### Qt 5: remove
 Q_CORE_EXPORT bool winPeekMessage(MSG* msg, HWND hWnd, UINT wMsgFilterMin,
                      UINT wMsgFilterMax, UINT wRemoveMsg)
 {
-    QT_WA({ return PeekMessage(msg, hWnd, wMsgFilterMin, wMsgFilterMax, wRemoveMsg); } ,
-          { return PeekMessageA(msg, hWnd, wMsgFilterMin, wMsgFilterMax, wRemoveMsg); });
+    return PeekMessage(msg, hWnd, wMsgFilterMin, wMsgFilterMax, wRemoveMsg);
 }
 
+// ### Qt 5: remove
 Q_CORE_EXPORT bool winPostMessage(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
 {
-    QT_WA({ return PostMessage(hWnd, msg, wParam, lParam); } ,
-          { return PostMessageA(hWnd, msg, wParam, lParam); });
+    return PostMessage(hWnd, msg, wParam, lParam);
+}
+
+// ### Qt 5: remove
+Q_CORE_EXPORT bool winGetMessage(MSG* msg, HWND hWnd, UINT wMsgFilterMin,
+                     UINT wMsgFilterMax)
+{
+    return GetMessage(msg, hWnd, wMsgFilterMin, wMsgFilterMax);
 }
 
 // This function is called by a workerthread
@@ -443,10 +443,10 @@ LRESULT CALLBACK qt_internal_proc(HWND hwnd, UINT message, WPARAM wp, LPARAM lp)
 
     #ifdef GWLP_USERDATA
             QEventDispatcherWin32 *eventDispatcher =
-                (QEventDispatcherWin32 *) GetWindowLongPtrA(hwnd, GWLP_USERDATA);
+                (QEventDispatcherWin32 *) GetWindowLongPtr(hwnd, GWLP_USERDATA);
     #else
             QEventDispatcherWin32 *eventDispatcher =
-                (QEventDispatcherWin32 *) GetWindowLongA(hwnd, GWL_USERDATA);
+                (QEventDispatcherWin32 *) GetWindowLong(hwnd, GWL_USERDATA);
     #endif
             if (eventDispatcher) {
                 QEventDispatcherWin32Private *d = eventDispatcher->d_func();
@@ -494,54 +494,35 @@ LRESULT CALLBACK qt_internal_proc(HWND hwnd, UINT message, WPARAM wp, LPARAM lp)
 
 static HWND qt_create_internal_window(const QEventDispatcherWin32 *eventDispatcher)
 {
-    HINSTANCE hi = qWinAppInst();
-#if defined(Q_OS_WINCE)
+    // make sure that multiple Qt's can coexist in the same process
+    QString className = QLatin1String("QEventDispatcherWin32_Internal_Widget") + QString::number(quintptr(qt_internal_proc));
+
     WNDCLASS wc;
-#else
-    WNDCLASSA wc;
-#endif
     wc.style = 0;
     wc.lpfnWndProc = qt_internal_proc;
     wc.cbClsExtra = 0;
     wc.cbWndExtra = 0;
-    wc.hInstance = hi;
+    wc.hInstance = qWinAppInst();
     wc.hIcon = 0;
     wc.hCursor = 0;
     wc.hbrBackground = 0;
     wc.lpszMenuName = NULL;
+    wc.lpszClassName = reinterpret_cast<const wchar_t *> (className.utf16());
 
-    // make sure that multiple Qt's can coexist in the same process
-    QByteArray className = "QEventDispatcherWin32_Internal_Widget" + QByteArray::number(quintptr(qt_internal_proc));
-#if defined(Q_OS_WINCE)
-    QString tmp = QString::fromLatin1(className.data());
-    wc.lpszClassName = reinterpret_cast<const wchar_t *> (tmp.utf16());
     RegisterClass(&wc);
     HWND wnd = CreateWindow(wc.lpszClassName,  // classname
-                             wc.lpszClassName,  // window name
-                             0,                 // style
-                             0, 0, 0, 0,        // geometry
-                             0,                 // parent
-                             0,                 // menu handle
-                             hi,                // application
-                             0);                // windows creation data.
-#else
-    wc.lpszClassName = className.constData();
-    RegisterClassA(&wc);
-    HWND wnd = CreateWindowA(wc.lpszClassName,  // classname
-                             wc.lpszClassName,  // window name
-                             0,                 // style
-                             0, 0, 0, 0,        // geometry
-                             0,                 // parent
-                             0,                 // menu handle
-                             hi,                // application
-                             0);                // windows creation data.
-#endif
-
+                            wc.lpszClassName,  // window name
+                            0,                 // style
+                            0, 0, 0, 0,        // geometry
+                            0,                 // parent
+                            0,                 // menu handle
+                            qWinAppInst(),     // application
+                            0);                // windows creation data.
 
 #ifdef GWLP_USERDATA
-    SetWindowLongPtrA(wnd, GWLP_USERDATA, (LONG_PTR)eventDispatcher);
+    SetWindowLongPtr(wnd, GWLP_USERDATA, (LONG_PTR)eventDispatcher);
 #else
-    SetWindowLongA(wnd, GWL_USERDATA, (LONG)eventDispatcher);
+    SetWindowLong(wnd, GWL_USERDATA, (LONG)eventDispatcher);
 #endif
 
     if (!wnd) {
@@ -690,7 +671,7 @@ bool QEventDispatcherWin32::processEvents(QEventLoop::ProcessEventsFlags flags)
                 haveMessage = true;
                 msg = d->queuedSocketEvents.takeFirst();
             } else {
-                haveMessage = winPeekMessage(&msg, 0, 0, 0, PM_REMOVE);
+                haveMessage = PeekMessage(&msg, 0, 0, 0, PM_REMOVE);
                 if (haveMessage && (flags & QEventLoop::ExcludeUserInputEvents)
                     && ((msg.message >= WM_KEYFIRST
                          && msg.message <= WM_KEYLAST)
@@ -738,11 +719,7 @@ bool QEventDispatcherWin32::processEvents(QEventLoop::ProcessEventsFlags flags)
 
                 if (!filterEvent(&msg)) {
                     TranslateMessage(&msg);
-                    QT_WA({
-                        DispatchMessage(&msg);
-                    } , {
-                        DispatchMessageA(&msg);
-                    });
+                    DispatchMessage(&msg);
                 }
             } else if (waitRet >= WAIT_OBJECT_0 && waitRet < WAIT_OBJECT_0 + nCount) {
                 d->activateEventNotifier(d->winEventNotifierList.at(waitRet - WAIT_OBJECT_0));
@@ -781,7 +758,7 @@ bool QEventDispatcherWin32::processEvents(QEventLoop::ProcessEventsFlags flags)
 bool QEventDispatcherWin32::hasPendingEvents()
 {
     MSG msg;
-    return qGlobalPostedEventsCount() || winPeekMessage(&msg, NULL, 0, 0, PM_NOREMOVE);
+    return qGlobalPostedEventsCount() || PeekMessage(&msg, NULL, 0, 0, PM_NOREMOVE);
 }
 
 void QEventDispatcherWin32::registerSocketNotifier(QSocketNotifier *notifier)
diff --git a/src/corelib/kernel/qfunctions_wince.cpp b/src/corelib/kernel/qfunctions_wince.cpp
index 2c47adb..5680ad5 100644
--- a/src/corelib/kernel/qfunctions_wince.cpp
+++ b/src/corelib/kernel/qfunctions_wince.cpp
@@ -108,7 +108,7 @@ int qt_wince__getdrive( void )
     return 1;
 }
 
-int qt_wince__waccess( const WCHAR *path, int pmode )
+int qt_wince__waccess( const wchar_t *path, int pmode )
 {
     DWORD res = GetFileAttributes( path );
     if ( 0xFFFFFFFF == res )
@@ -118,7 +118,7 @@ int qt_wince__waccess( const WCHAR *path, int pmode )
         return -1;
 
     if ( (pmode & X_OK) && !(res & FILE_ATTRIBUTE_DIRECTORY) ) {
-        QString file = QString::fromUtf16(reinterpret_cast<const ushort *> (path));
+        QString file = QString::fromWCharArray(path);
         if ( !(file.endsWith(QString::fromLatin1(".exe")) ||
            file.endsWith(QString::fromLatin1(".com"))) )
         return -1;
@@ -130,12 +130,12 @@ int qt_wince__waccess( const WCHAR *path, int pmode )
 int qt_wince_open( const char *filename, int oflag, int pmode )
 {
     QString fn( QString::fromLatin1(filename) );
-    return _wopen( (WCHAR*)fn.utf16(), oflag, pmode );
+    return _wopen( (wchar_t*)fn.utf16(), oflag, pmode );
 }
 
-int qt_wince__wopen( const WCHAR *filename, int oflag, int /*pmode*/ )
+int qt_wince__wopen( const wchar_t *filename, int oflag, int /*pmode*/ )
 {
-    WCHAR *flag;
+    wchar_t *flag;
 
     if ( oflag & _O_APPEND ) {
         if ( oflag & _O_WRONLY ) {
@@ -290,7 +290,7 @@ bool qt_wince__chmod(const char *file, int mode)
     return _wchmod( reinterpret_cast<const wchar_t *> (QString::fromLatin1(file).utf16()), mode);
 }
 
-bool qt_wince__wchmod(const WCHAR *file, int mode)
+bool qt_wince__wchmod(const wchar_t *file, int mode)
 {
     // ### Does not work properly, what about just adding one property?
     if(mode&_S_IWRITE) {
diff --git a/src/corelib/kernel/qfunctions_wince.h b/src/corelib/kernel/qfunctions_wince.h
index 307e17b..41cb641 100644
--- a/src/corelib/kernel/qfunctions_wince.h
+++ b/src/corelib/kernel/qfunctions_wince.h
@@ -175,8 +175,8 @@ typedef int mode_t;
 extern int errno;
 
 int     qt_wince__getdrive( void );
-int     qt_wince__waccess( const WCHAR *path, int pmode );
-int     qt_wince__wopen( const WCHAR *filename, int oflag, int pmode );
+int     qt_wince__waccess( const wchar_t *path, int pmode );
+int     qt_wince__wopen( const wchar_t *filename, int oflag, int pmode );
 long    qt_wince__lseek( int handle, long offset, int origin );
 int     qt_wince__read( int handle, void *buffer, unsigned int count );
 int     qt_wince__write( int handle, const void *buffer, unsigned int count );
@@ -204,7 +204,7 @@ int qt_wince_SetErrorMode(int);
 #endif
 
 bool qt_wince__chmod(const char *file, int mode);
-bool qt_wince__wchmod(const WCHAR *file, int mode);
+bool qt_wince__wchmod(const wchar_t *file, int mode);
 
 #pragma warning(disable: 4273)
 HANDLE qt_wince_CreateFileA(LPCSTR, DWORD, DWORD, LPSECURITY_ATTRIBUTES, DWORD, DWORD, HANDLE);
diff --git a/src/corelib/kernel/qmath.h b/src/corelib/kernel/qmath.h
index 348957f..7a77d56 100644
--- a/src/corelib/kernel/qmath.h
+++ b/src/corelib/kernel/qmath.h
@@ -132,6 +132,10 @@ inline qreal qPow(qreal x, qreal y)
         return pow(x, y);
 }
 
+#ifndef M_PI
+#define M_PI (3.14159265358979323846)
+#endif
+
 QT_END_NAMESPACE
 
 QT_END_HEADER
diff --git a/src/corelib/kernel/qmetaobject.cpp b/src/corelib/kernel/qmetaobject.cpp
index 215f6ae..08cecaf 100644
--- a/src/corelib/kernel/qmetaobject.cpp
+++ b/src/corelib/kernel/qmetaobject.cpp
@@ -2136,8 +2136,15 @@ QVariant QMetaProperty::read(const QObject *object) const
             return QVariant();
         }
     }
+
+    // the status variable is changed by qt_metacall to indicate what it did
+    // this feature is currently only used by QtDBus and should not be depended
+    // upon. Don't change it without looking into QDBusAbstractInterface first
+    // -1 (unchanged): normal qt_metacall, result stored in argv[0]
+    // changed: result stored directly in value
+    int status = -1;
     QVariant value;
-    void *argv[2] = { 0, &value };
+    void *argv[] = { 0, &value, &status };
     if (t == QVariant::LastType) {
         argv[0] = &value;
     } else {
@@ -2147,8 +2154,8 @@ QVariant QMetaProperty::read(const QObject *object) const
     const_cast<QObject*>(object)->qt_metacall(QMetaObject::ReadProperty,
                                               idx + mobj->propertyOffset(),
                                               argv);
-    if (argv[1] == 0)
-        // "value" was changed
+
+    if (status != -1)
         return value;
     if (t != QVariant::LastType && argv[0] != value.data())
         // pointer or reference
@@ -2206,13 +2213,19 @@ bool QMetaProperty::write(QObject *object, const QVariant &value) const
             return false;
     }
 
-    void *argv[2] = { 0, &v };
+    // the status variable is changed by qt_metacall to indicate what it did
+    // this feature is currently only used by QtDBus and should not be depended
+    // upon. Don't change it without looking into QDBusAbstractInterface first
+    // -1 (unchanged): normal qt_metacall, result stored in argv[0]
+    // changed: result stored directly in value, return the value of status
+    int status = -1;
+    void *argv[] = { 0, &v, &status };
     if (t == QVariant::LastType)
         argv[0] = &v;
     else
         argv[0] = v.data();
     object->qt_metacall(QMetaObject::WriteProperty, idx + mobj->propertyOffset(), argv);
-    return true;
+    return status;
 }
 
 /*!
@@ -2291,6 +2304,8 @@ QMetaMethod QMetaProperty::notifySignal() const
 }
 
 /*!
+    \since 4.6
+
     Returns the index of the property change notifying signal if one was 
     specified, otherwise returns -1.
 
diff --git a/src/corelib/kernel/qmetatype.cpp b/src/corelib/kernel/qmetatype.cpp
index 91266db..bd27ec2 100644
--- a/src/corelib/kernel/qmetatype.cpp
+++ b/src/corelib/kernel/qmetatype.cpp
@@ -171,6 +171,11 @@ QT_BEGIN_NAMESPACE
     \value QBitmap QBitmap
     \value QMatrix QMatrix
     \value QTransform QTransform
+    \value QMatrix4x4 QMatrix4x4
+    \value QVector2D QVector2D
+    \value QVector3D QVector3D
+    \value QVector4D QVector4D
+    \value QQuaternion QQuaternion
 
     \value User  Base value for user types
 
@@ -272,6 +277,11 @@ static const struct { const char * typeName; int type; } types[] = {
     {"QTextFormat", QMetaType::QTextFormat},
     {"QMatrix", QMetaType::QMatrix},
     {"QTransform", QMetaType::QTransform},
+    {"QMatrix4x4", QMetaType::QMatrix4x4},
+    {"QVector2D", QMetaType::QVector2D},
+    {"QVector3D", QMetaType::QVector3D},
+    {"QVector4D", QMetaType::QVector4D},
+    {"QQuaternion", QMetaType::QQuaternion},
 
     /* All Metatype builtins */
     {"void*", QMetaType::VoidStar},
@@ -430,16 +440,15 @@ int QMetaType::registerType(const char *typeName, Destructor destructor,
 #endif
 
     QWriteLocker locker(customTypesLock());
-    static int currentIdx = User;
     int idx = qMetaTypeType_unlocked(normalizedTypeName);
 
     if (!idx) {
-        idx = currentIdx++;
-        ct->resize(ct->count() + 1);
-        QCustomTypeInfo &inf = (*ct)[idx - User];
+        QCustomTypeInfo inf;
         inf.typeName = normalizedTypeName;
         inf.constr = constructor;
         inf.destr = destructor;
+        idx = ct->size() + User;
+        ct->append(inf);
     }
     return idx;
 }
@@ -671,6 +680,11 @@ bool QMetaType::save(QDataStream &stream, int type, const void *data)
     case QMetaType::QTextFormat:
     case QMetaType::QMatrix:
     case QMetaType::QTransform:
+    case QMetaType::QMatrix4x4:
+    case QMetaType::QVector2D:
+    case QMetaType::QVector3D:
+    case QMetaType::QVector4D:
+    case QMetaType::QQuaternion:
         if (!qMetaTypeGuiHelper)
             return false;
         qMetaTypeGuiHelper[type - FirstGuiType].saveOp(stream, data);
@@ -863,6 +877,11 @@ bool QMetaType::load(QDataStream &stream, int type, void *data)
     case QMetaType::QTextFormat:
     case QMetaType::QMatrix:
     case QMetaType::QTransform:
+    case QMetaType::QMatrix4x4:
+    case QMetaType::QVector2D:
+    case QMetaType::QVector3D:
+    case QMetaType::QVector4D:
+    case QMetaType::QQuaternion:
         if (!qMetaTypeGuiHelper)
             return false;
         qMetaTypeGuiHelper[type - FirstGuiType].loadOp(stream, data);
diff --git a/src/corelib/kernel/qmetatype.h b/src/corelib/kernel/qmetatype.h
index 497c014..052312c 100644
--- a/src/corelib/kernel/qmetatype.h
+++ b/src/corelib/kernel/qmetatype.h
@@ -79,7 +79,9 @@ public:
         QIcon = 69, QImage = 70, QPolygon = 71, QRegion = 72, QBitmap = 73,
         QCursor = 74, QSizePolicy = 75, QKeySequence = 76, QPen = 77,
         QTextLength = 78, QTextFormat = 79, QMatrix = 80, QTransform = 81,
-        LastGuiType = 81 /* QTransform */,
+        QMatrix4x4 = 82, QVector2D = 83, QVector3D = 84, QVector4D = 85,
+        QQuaternion = 86,
+        LastGuiType = 86 /* QQuaternion */,
 
         FirstCoreExtType = 128 /* VoidStar */,
         VoidStar = 128, Long = 129, Short = 130, Char = 131, ULong = 132,
@@ -292,6 +294,11 @@ class QTextLength;
 class QTextFormat;
 class QMatrix;
 class QTransform;
+class QMatrix4x4;
+class QVector2D;
+class QVector3D;
+class QVector4D;
+class QQuaternion;
 
 QT_END_NAMESPACE
 
@@ -354,6 +361,11 @@ Q_DECLARE_BUILTIN_METATYPE(QTextLength, QTextLength)
 Q_DECLARE_BUILTIN_METATYPE(QTextFormat, QTextFormat)
 Q_DECLARE_BUILTIN_METATYPE(QMatrix, QMatrix)
 Q_DECLARE_BUILTIN_METATYPE(QTransform, QTransform)
+Q_DECLARE_BUILTIN_METATYPE(QMatrix4x4, QMatrix4x4)
+Q_DECLARE_BUILTIN_METATYPE(QVector2D, QVector2D)
+Q_DECLARE_BUILTIN_METATYPE(QVector3D, QVector3D)
+Q_DECLARE_BUILTIN_METATYPE(QVector4D, QVector4D)
+Q_DECLARE_BUILTIN_METATYPE(QQuaternion, QQuaternion)
 
 QT_END_HEADER
 
diff --git a/src/corelib/kernel/qmimedata.cpp b/src/corelib/kernel/qmimedata.cpp
index 3d2a7cb..4a1ba9f 100644
--- a/src/corelib/kernel/qmimedata.cpp
+++ b/src/corelib/kernel/qmimedata.cpp
@@ -105,7 +105,7 @@ QVariant QMimeDataPrivate::retrieveTypedData(const QString &format, QVariant::Ty
     Q_Q(const QMimeData);
 
     QVariant data = q->retrieveData(format, type);
-    if (data.type() == type || data.type() == QVariant::Invalid)
+    if (data.type() == type || !data.isValid())
         return data;
 
     // provide more conversion possiblities than just what QVariant provides
diff --git a/src/corelib/kernel/qobject.cpp b/src/corelib/kernel/qobject.cpp
index 85e0ed1..3aa9193 100644
--- a/src/corelib/kernel/qobject.cpp
+++ b/src/corelib/kernel/qobject.cpp
@@ -577,7 +577,7 @@ int QMetaCallEvent::placeMetaCall(QObject *object)
     \l uic generates code that invokes this function to enable
     auto-connection to be performed between widgets on forms created
     with \QD. More information about using auto-connection with \QD is
-    given in the \l{Using a Designer .ui File in Your Application} section of
+    given in the \l{Using a Designer UI File in Your Application} section of
     the \QD manual.
 
     \section2 Dynamic Properties
@@ -870,7 +870,7 @@ QObject::~QObject()
 QObjectPrivate::Connection::~Connection()
 {
     if (argumentTypes != &DIRECT_CONNECTION_ONLY)
-        delete [] argumentTypes;
+        delete [] static_cast<int *>(argumentTypes);
 }
 
 
@@ -2104,6 +2104,34 @@ void QObject::deleteLater()
 
     \snippet doc/src/snippets/code/src_corelib_kernel_qobject.cpp 17
 
+    \section1 Meta Data
+
+    Additional data can be attached to each translatable message.
+    The syntax:
+
+    \tt{//= <id>}
+
+    can be used to give the message a unique identifier to support tools
+    which need it.
+    The syntax:
+
+    \tt{//~ <field name> <field contents>}
+
+    can be used to attach meta data to the message. The field name should consist
+    of a domain prefix (possibly the conventional file extension of the file format
+    the field is inspired by), a hyphen and the actual field name in
+    underscore-delimited notation. For storage in TS files, the field name together
+    with the prefix "extra-" will form an XML element name. The field contents will
+    be XML-escaped, but otherwise appear verbatim as the element's contents.
+    Any number of unique fields can be added to each message.
+
+    Example:
+
+    \snippet doc/src/snippets/code/src_corelib_kernel_qobject.cpp meta data
+
+    Meta data appearing right in front of a magic TRANSLATOR comment applies to the
+    whole TS file.
+
     \section1 Character Encodings
 
     You can set the encoding for \a sourceText by calling QTextCodec::setCodecForTr().
diff --git a/src/corelib/kernel/qsharedmemory_unix.cpp b/src/corelib/kernel/qsharedmemory_unix.cpp
index 7e8dc23..61f7727 100644
--- a/src/corelib/kernel/qsharedmemory_unix.cpp
+++ b/src/corelib/kernel/qsharedmemory_unix.cpp
@@ -56,7 +56,7 @@
 #include <fcntl.h>
 #include <unistd.h>
 
-#ifndef QT_NO_SHAREDMEMORY
+#include "private/qcore_unix_p.h"
 
 QT_BEGIN_NAMESPACE
 
@@ -82,7 +82,7 @@ void QSharedMemoryPrivate::setErrorString(const QString &function)
         error = QSharedMemory::AlreadyExists;
         break;
     case ENOENT:
-        errorString = QSharedMemory::tr("%1: doesn't exists").arg(function);
+        errorString = QSharedMemory::tr("%1: doesn't exist").arg(function);
         error = QSharedMemory::NotFound;
         break;
     case EMFILE:
@@ -121,7 +121,7 @@ key_t QSharedMemoryPrivate::handle()
     // ftok requires that an actual file exists somewhere
     QString fileName = makePlatformSafeKey(key);
     if (!QFile::exists(fileName)) {
-        errorString = QSharedMemory::tr("%1: unix key file doesn't exists").arg(QLatin1String("QSharedMemory::handle:"));
+        errorString = QSharedMemory::tr("%1: UNIX key file doesn't exist").arg(QLatin1String("QSharedMemory::handle:"));
         error = QSharedMemory::NotFound;
         return 0;
     }
@@ -152,7 +152,7 @@ int QSharedMemoryPrivate::createUnixKeyFile(const QString &fileName)
     if (QFile::exists(fileName))
         return 0;
 
-    int fd = open(QFile::encodeName(fileName).constData(),
+    int fd = qt_safe_open(QFile::encodeName(fileName).constData(),
             O_EXCL | O_CREAT | O_RDWR, 0640);
     if (-1 == fd) {
         if (errno == EEXIST)
diff --git a/src/corelib/kernel/qsharedmemory_win.cpp b/src/corelib/kernel/qsharedmemory_win.cpp
index d963a6d..ae64806 100644
--- a/src/corelib/kernel/qsharedmemory_win.cpp
+++ b/src/corelib/kernel/qsharedmemory_win.cpp
@@ -71,7 +71,7 @@ void QSharedMemoryPrivate::setErrorString(const QString &function)
     case ERROR_INVALID_PARAMETER:
 #endif
         error = QSharedMemory::NotFound;
-        errorString = QSharedMemory::tr("%1: doesn't exists").arg(function);
+        errorString = QSharedMemory::tr("%1: doesn't exist").arg(function);
         break;
     case ERROR_COMMITMENT_LIMIT:
         error = QSharedMemory::InvalidSize;
@@ -106,16 +106,11 @@ HANDLE QSharedMemoryPrivate::handle()
             return false;
         }
 #ifndef Q_OS_WINCE
-    QT_WA({
-            hand = OpenFileMappingW(FILE_MAP_ALL_ACCESS, false, (TCHAR*)safeKey.utf16());
-        }, {
-            hand = OpenFileMappingA(FILE_MAP_ALL_ACCESS, false, safeKey.toLocal8Bit().constData());
-        });
+        hand = OpenFileMapping(FILE_MAP_ALL_ACCESS, false, (wchar_t*)safeKey.utf16());
 #else
         // This works for opening a mapping too, but always opens it with read/write access in
         // attach as it seems.
-        hand = CreateFileMappingW(INVALID_HANDLE_VALUE,
-               0, PAGE_READWRITE, 0, 0, (TCHAR*)safeKey.utf16());
+        hand = CreateFileMapping(INVALID_HANDLE_VALUE, 0, PAGE_READWRITE, 0, 0, (wchar_t*)safeKey.utf16());
 #endif
         if (!hand) {
             setErrorString(function);
@@ -148,13 +143,7 @@ bool QSharedMemoryPrivate::create(int size)
     }
 
     // Create the file mapping.
-    QT_WA( {
-        hand = CreateFileMappingW(INVALID_HANDLE_VALUE,
-               0, PAGE_READWRITE, 0, size, (TCHAR*)safeKey.utf16());
-    }, {
-        hand = CreateFileMappingA(INVALID_HANDLE_VALUE,
-               0, PAGE_READWRITE, 0, size, safeKey.toLocal8Bit().constData());
-    } );
+    hand = CreateFileMapping(INVALID_HANDLE_VALUE, 0, PAGE_READWRITE, 0, size, (wchar_t*)safeKey.utf16());
     setErrorString(function);
 
     // hand is valid when it already exists unlike unix so explicitly check
diff --git a/src/corelib/kernel/qsystemsemaphore_win.cpp b/src/corelib/kernel/qsystemsemaphore_win.cpp
index 4e03ddf..1102258 100644
--- a/src/corelib/kernel/qsystemsemaphore_win.cpp
+++ b/src/corelib/kernel/qsystemsemaphore_win.cpp
@@ -87,11 +87,7 @@ HANDLE QSystemSemaphorePrivate::handle(QSystemSemaphore::AccessMode)
     // Create it if it doesn't already exists.
     if (semaphore == 0) {
         QString safeName = makeKeyFileName();
-        QT_WA({
-            semaphore = CreateSemaphoreW(0, initialValue, MAXLONG, (TCHAR*)safeName.utf16());
-        }, {
-            semaphore = CreateSemaphoreA(0, initialValue, MAXLONG, safeName.toLocal8Bit().constData());
-        });
+        semaphore = CreateSemaphore(0, initialValue, MAXLONG, (wchar_t*)safeName.utf16());
         if (semaphore == NULL)
             setErrorString(QLatin1String("QSystemSemaphore::handle"));
     }
diff --git a/src/corelib/kernel/qtimer.cpp b/src/corelib/kernel/qtimer.cpp
index d2a0b3a..2ee9d26 100644
--- a/src/corelib/kernel/qtimer.cpp
+++ b/src/corelib/kernel/qtimer.cpp
@@ -103,9 +103,8 @@ QT_BEGIN_NAMESPACE
 
     Note that QTimer's accuracy depends on the underlying operating
     system and hardware. Most platforms support an accuracy of
-    1 millisecond, but Windows 98 supports only 55. If Qt is
-    unable to deliver the requested number of timer clicks, it will
-    silently discard some.
+    1 millisecond. If Qt is unable to deliver the requested number of
+    timer clicks, it will silently discard some.
 
     An alternative to using QTimer is to call QObject::startTimer()
     for your object and reimplement the QObject::timerEvent() event
diff --git a/src/corelib/kernel/qtranslator.cpp b/src/corelib/kernel/qtranslator.cpp
index 64cf16e..dc1b530 100644
--- a/src/corelib/kernel/qtranslator.cpp
+++ b/src/corelib/kernel/qtranslator.cpp
@@ -58,6 +58,7 @@
 
 #if defined(Q_OS_UNIX)
 #define QT_USE_MMAP
+#include "private/qcore_unix_p.h"
 #endif
 
 // most of the headers below are already included in qplatformdefs.h
@@ -502,7 +503,7 @@ bool QTranslator::load(const QString & filename, const QString & directory,
   \overload load()
   \fn bool QTranslator::load(const uchar *data, int len)
 
-  Loads the .qm file data \a data of length \a len into the
+  Loads the QM file data \a data of length \a len into the
   translator.
 
   The data is not copied. The caller must be able to guarantee that \a data
diff --git a/src/corelib/kernel/qvariant.cpp b/src/corelib/kernel/qvariant.cpp
index 2b57d2f..b487615 100644
--- a/src/corelib/kernel/qvariant.cpp
+++ b/src/corelib/kernel/qvariant.cpp
@@ -1291,6 +1291,7 @@ const QVariant::Handler *QVariant::handler = &qt_kernel_variant_handler;
     \value Map  a QVariantMap
     \value Matrix  a QMatrix
     \value Transform  a QTransform
+    \value Matrix4x4  a QMatrix4x4
     \value Palette  a QPalette
     \value Pen  a QPen
     \value Pixmap  a QPixmap
@@ -1298,6 +1299,7 @@ const QVariant::Handler *QVariant::handler = &qt_kernel_variant_handler;
     \value PointArray  a QPointArray
     \value PointF  a QPointF
     \value Polygon a QPolygon
+    \value Quaternion  a QQuaternion
     \value Rect  a QRect
     \value RectF  a QRectF
     \value RegExp  a QRegExp
@@ -1313,6 +1315,9 @@ const QVariant::Handler *QVariant::handler = &qt_kernel_variant_handler;
     \value UInt  a \l uint
     \value ULongLong a \l qulonglong
     \value Url  a QUrl
+    \value Vector2D  a QVector2D
+    \value Vector3D  a QVector3D
+    \value Vector4D  a QVector4D
 
     \value UserType Base value for user-defined types.
 
@@ -1704,7 +1709,7 @@ QVariant::QVariant(Qt::GlobalColor color) { create(62, &color); }
     Note that return values in the ranges QVariant::Char through
     QVariant::RegExp and QVariant::Font through QVariant::Transform
     correspond to the values in the ranges QMetaType::QChar through
-    QMetaType::QRegExp and QMetaType::QFont through QMetaType::QTransform.
+    QMetaType::QRegExp and QMetaType::QFont through QMetaType::QQuaternion.
 
     Pay particular attention when working with char and QChar
     variants.  Note that there is no QVariant constructor specifically
@@ -1932,7 +1937,7 @@ void QVariant::load(QDataStream &s)
     create(static_cast<int>(u), 0);
     d.is_null = is_null;
 
-    if (d.type == QVariant::Invalid) {
+    if (!isValid()) {
         // Since we wrote something, we should read something
         QString x;
         s >> x;
@@ -1976,7 +1981,7 @@ void QVariant::save(QDataStream &s) const
         s << QMetaType::typeName(userType());
     }
 
-    if (d.type == QVariant::Invalid) {
+    if (!isValid()) {
         s << QString();
         return;
     }
diff --git a/src/corelib/kernel/qvariant.h b/src/corelib/kernel/qvariant.h
index e923844..a68939d 100644
--- a/src/corelib/kernel/qvariant.h
+++ b/src/corelib/kernel/qvariant.h
@@ -154,7 +154,12 @@ class Q_CORE_EXPORT QVariant
         TextFormat = 79,
         Matrix = 80,
         Transform = 81,
-        LastGuiType = Transform,
+        Matrix4x4 = 82,
+        Vector2D = 83,
+        Vector3D = 84,
+        Vector4D = 85,
+        Quaternion = 86,
+        LastGuiType = Quaternion,
 
         UserType = 127,
 #ifdef QT3_SUPPORT
diff --git a/src/corelib/plugin/qlibrary.cpp b/src/corelib/plugin/qlibrary.cpp
index 3f42311..772655e 100644
--- a/src/corelib/plugin/qlibrary.cpp
+++ b/src/corelib/plugin/qlibrary.cpp
@@ -637,11 +637,7 @@ bool QLibraryPrivate::isPlugin(QSettings *settings)
 #endif
             if (!pHnd) {
 #ifdef Q_OS_WIN
-                QT_WA({
-                    hTempModule = ::LoadLibraryExW((wchar_t*)QDir::toNativeSeparators(fileName).utf16(), 0, DONT_RESOLVE_DLL_REFERENCES);
-                } , {
-                    temporary_load = load_sys();
-                });
+                hTempModule = ::LoadLibraryEx((wchar_t*)QDir::toNativeSeparators(fileName).utf16(), 0, DONT_RESOLVE_DLL_REFERENCES);
 #else
 #  if defined(Q_OS_SYMBIAN)
                 //Guard against accidentally trying to load non-plugin libraries by making sure the stub exists
@@ -659,7 +655,7 @@ bool QLibraryPrivate::isPlugin(QSettings *settings)
             QtPluginQueryVerificationDataFunction qtPluginQueryVerificationDataFunction = hTempModule
                 ? (QtPluginQueryVerificationDataFunction)
 #ifdef Q_OS_WINCE
-                    ::GetProcAddressW(hTempModule, L"qt_plugin_query_verification_data")
+                    ::GetProcAddress(hTempModule, L"qt_plugin_query_verification_data")
 #else
                     ::GetProcAddress(hTempModule, "qt_plugin_query_verification_data")
 #endif
diff --git a/src/corelib/plugin/qlibrary_win.cpp b/src/corelib/plugin/qlibrary_win.cpp
index 43eeafa..847c0d2 100644
--- a/src/corelib/plugin/qlibrary_win.cpp
+++ b/src/corelib/plugin/qlibrary_win.cpp
@@ -67,30 +67,18 @@ bool QLibraryPrivate::load_sys()
 
     //avoid 'Bad Image' message box
     UINT oldmode = SetErrorMode(SEM_FAILCRITICALERRORS|SEM_NOOPENFILEERRORBOX);
-    QT_WA({
-        pHnd = LoadLibraryW((TCHAR*)QDir::toNativeSeparators(attempt).utf16());
-    } , {
-        pHnd = LoadLibraryA(QFile::encodeName(QDir::toNativeSeparators(attempt)).data());
-    });
-    
+    pHnd = LoadLibrary((wchar_t*)QDir::toNativeSeparators(attempt).utf16());
+
     if (pluginState != IsAPlugin) {
 #if defined(Q_OS_WINCE)
         if (!pHnd && ::GetLastError() == ERROR_MOD_NOT_FOUND) {
             QString secondAttempt = fileName;
-            QT_WA({
-                pHnd = LoadLibraryW((TCHAR*)QDir::toNativeSeparators(secondAttempt).utf16());
-            } , {
-                pHnd = LoadLibraryA(QFile::encodeName(QDir::toNativeSeparators(secondAttempt)).data());
-            });
+            pHnd = LoadLibrary((wchar_t*)QDir::toNativeSeparators(secondAttempt).utf16());
         }
 #endif
         if (!pHnd && ::GetLastError() == ERROR_MOD_NOT_FOUND) {
             attempt += QLatin1String(".dll");
-            QT_WA({
-                pHnd = LoadLibraryW((TCHAR*)QDir::toNativeSeparators(attempt).utf16());
-            } , {
-                pHnd = LoadLibraryA(QFile::encodeName(QDir::toNativeSeparators(attempt)).data());
-            });
+            pHnd = LoadLibrary((wchar_t*)QDir::toNativeSeparators(attempt).utf16());
         }
     }
 
@@ -100,15 +88,11 @@ bool QLibraryPrivate::load_sys()
     }
     if (pHnd) {
         errorString.clear();
-        QT_WA({
-            TCHAR buffer[MAX_PATH + 1];
-            ::GetModuleFileNameW(pHnd, buffer, MAX_PATH);
-            attempt = QString::fromUtf16(reinterpret_cast<const ushort *>(&buffer));
-        }, {
-            char buffer[MAX_PATH + 1];
-            ::GetModuleFileNameA(pHnd, buffer, MAX_PATH);
-            attempt = QString::fromLocal8Bit(buffer);
-        });
+
+        wchar_t buffer[MAX_PATH];
+        ::GetModuleFileName(pHnd, buffer, MAX_PATH);
+        attempt = QString::fromWCharArray(buffer);
+
         const QDir dir =  QFileInfo(fileName).dir();
         const QString realfilename = attempt.mid(attempt.lastIndexOf(QLatin1Char('\\')) + 1);
         if (dir.path() == QLatin1String("."))
diff --git a/src/corelib/plugin/qplugin.h b/src/corelib/plugin/qplugin.h
index ff2b412..233b4f9 100644
--- a/src/corelib/plugin/qplugin.h
+++ b/src/corelib/plugin/qplugin.h
@@ -63,21 +63,6 @@ typedef QObject *(*QtPluginInstanceFunction)();
 
 void Q_CORE_EXPORT qRegisterStaticPluginInstanceFunction(QtPluginInstanceFunction function);
 
-struct qt_plugin_instance_deleter
-{
-    qt_plugin_instance_deleter(QPointer<QObject> &instance)
-        : instance_(instance)
-    {
-    }
-
-    ~qt_plugin_instance_deleter()
-    {
-        delete instance_;
-    }
-
-    QPointer<QObject> &instance_;
-};
-
 #define Q_IMPORT_PLUGIN(PLUGIN) \
         extern QT_PREPEND_NAMESPACE(QObject) *qt_plugin_instance_##PLUGIN(); \
         class Static##PLUGIN##PluginInstance{ \
@@ -91,10 +76,8 @@ struct qt_plugin_instance_deleter
 #define Q_PLUGIN_INSTANCE(IMPLEMENTATION) \
         { \
             static QT_PREPEND_NAMESPACE(QPointer)<QT_PREPEND_NAMESPACE(QObject)> _instance; \
-            if (!_instance) { \
-                static QT_PREPEND_NAMESPACE(qt_plugin_instance_deleter) deleter(_instance); \
+            if (!_instance)      \
                 _instance = new IMPLEMENTATION; \
-            } \
             return _instance; \
         }
 
diff --git a/src/corelib/statemachine/qabstracttransition.cpp b/src/corelib/statemachine/qabstracttransition.cpp
index 670aa7d..0004d3e 100644
--- a/src/corelib/statemachine/qabstracttransition.cpp
+++ b/src/corelib/statemachine/qabstracttransition.cpp
@@ -115,13 +115,10 @@ QAbstractTransitionPrivate *QAbstractTransitionPrivate::get(QAbstractTransition
 
 QStateMachine *QAbstractTransitionPrivate::machine() const
 {
-    QObject *par = parent;
-    while (par != 0) {
-        if (QStateMachine *mach = qobject_cast<QStateMachine*>(par))
-            return mach;
-        par = par->parent();
-    }
-    return 0;
+    QState *source = sourceState();
+    if (!source)
+        return 0;
+    return source->machine();
 }
 
 bool QAbstractTransitionPrivate::callEventTest(QEvent *e)
@@ -256,10 +253,6 @@ void QAbstractTransition::setTargetStates(const QList<QAbstractState*> &targets)
             qWarning("QAbstractTransition::setTargetStates: target state(s) cannot be null");
             return;
         }
-        if (target->machine() != 0 && target->machine()->rootState() == target) {
-            qWarning("QAbstractTransition::setTargetStates: root state cannot be target of transition");
-            return;
-        }
     }
 
     d->targetStates.clear();
diff --git a/src/corelib/statemachine/qstate.cpp b/src/corelib/statemachine/qstate.cpp
index 83dd869..2042288 100644
--- a/src/corelib/statemachine/qstate.cpp
+++ b/src/corelib/statemachine/qstate.cpp
@@ -71,7 +71,7 @@ QT_BEGIN_NAMESPACE
   The assignProperty() function is used for defining property assignments that
   should be performed when a state is entered.
 
-  Top-level states must be passed QStateMachine::rootState() as their parent
+  Top-level states must be passed a QStateMachine object as their parent
   state, or added to a state machine using QStateMachine::addState().
 
   \section1 States with Child States
@@ -215,6 +215,8 @@ QList<QAbstractTransition*> QStatePrivate::transitions() const
     return result;
 }
 
+#ifndef QT_NO_PROPERTIES
+
 /*!
   Instructs this state to set the property with the given \a name of the given
   \a object to the given \a value when the state is entered.
@@ -239,10 +241,12 @@ void QState::assignProperty(QObject *object, const char *name,
     d->propertyAssignments.append(QPropertyAssignment(object, name, value));
 }
 
+#endif // QT_NO_PROPERTIES
+
 /*!
   Returns this state's error state. 
 
-  \sa QStateMachine::errorState(), QStateMachine::setErrorState()
+  \sa QStateMachine::error()
 */
 QAbstractState *QState::errorState() const
 {
@@ -256,19 +260,17 @@ QAbstractState *QState::errorState() const
   state recursively. If no error state is set for the state itself or any of 
   its ancestors, an error will cause the machine to stop executing and an error
   will be printed to the console.
-
-  \sa QStateMachine::setErrorState(), QStateMachine::errorState()
 */
 void QState::setErrorState(QAbstractState *state)
 {
     Q_D(QState);
-    if (state != 0 && state->machine() != machine()) {
-        qWarning("QState::setErrorState: error state cannot belong "
-                 "to a different state machine");
+    if (state != 0 && qobject_cast<QStateMachine*>(state)) {
+        qWarning("QStateMachine::setErrorState: root state cannot be error state");
         return;
     }
-    if (state != 0 && state->machine() != 0 && state->machine()->rootState() == state) {
-        qWarning("QStateMachine::setErrorState: root state cannot be error state");
+    if (state != 0 && (!state->machine() || ((state->machine() != machine()) && !qobject_cast<QStateMachine*>(this)))) {
+        qWarning("QState::setErrorState: error state cannot belong "
+                 "to a different state machine");
         return;
     }
 
@@ -288,12 +290,7 @@ QAbstractTransition *QState::addTransition(QAbstractTransition *transition)
         return 0;
     }
 
-    // machine() will always be non-null for root state
-    if (machine() != 0 && machine()->rootState() == this) {
-        qWarning("QState::addTransition: cannot add transition from root state");
-        return 0;
-    }
-
+    transition->setParent(this);
     const QList<QPointer<QAbstractState> > &targets = QAbstractTransitionPrivate::get(transition)->targetStates;
     for (int i = 0; i < targets.size(); ++i) {
         QAbstractState *t = targets.at(i);
@@ -308,7 +305,6 @@ QAbstractTransition *QState::addTransition(QAbstractTransition *transition)
             return 0;
         }
     }
-    transition->setParent(this);
     if (machine() != 0 && machine()->configuration().contains(this))
         QStateMachinePrivate::get(machine())->registerTransitions(this);
     return transition;
diff --git a/src/corelib/statemachine/qstate.h b/src/corelib/statemachine/qstate.h
index 41d32be..ce88b25 100644
--- a/src/corelib/statemachine/qstate.h
+++ b/src/corelib/statemachine/qstate.h
@@ -87,8 +87,10 @@ public:
     ChildMode childMode() const;
     void setChildMode(ChildMode mode);
 
+#ifndef QT_NO_PROPERTIES
     void assignProperty(QObject *object, const char *name,
                         const QVariant &value);
+#endif
 
 Q_SIGNALS:
     void finished();
diff --git a/src/corelib/statemachine/qstatemachine.cpp b/src/corelib/statemachine/qstatemachine.cpp
index b519107..1780d90 100644
--- a/src/corelib/statemachine/qstatemachine.cpp
+++ b/src/corelib/statemachine/qstatemachine.cpp
@@ -102,14 +102,9 @@ QT_BEGIN_NAMESPACE
     Framework}{overview} gives several state graphs and the code to
     build them.
 
-    The rootState() is the parent of all top-level states in the
-    machine; it is used, for instance, when the state graph is
-    deleted. It is created by the machine.
-
-    Use the addState() function to add a state to the state machine.
-    All top-level states are added to the root state. States are
-    removed with the removeState() function. Removing states while the
-    machine is running is discouraged.
+    Use the addState() function to add a top-level state to the state machine.
+    States are removed with the removeState() function. Removing states while
+    the machine is running is discouraged.
 
     Before the machine can be started, the \l{initialState}{initial
     state} must be set. The initial state is the state that the
@@ -179,26 +174,6 @@ This is
 */
 
 /*!
-    \property QStateMachine::rootState
-
-    \brief the root state of this state machine
-*/
-
-/*!
-    \property QStateMachine::initialState
-
-    \brief the initial state of this state machine
-
-    The initial state must be one of the rootState()'s child states.
-*/
-
-/*!
-    \property QStateMachine::errorState
-
-    \brief the error state of this state machine
-*/
-
-/*!
     \property QStateMachine::errorString
 
     \brief the error string of this state machine
@@ -235,7 +210,6 @@ QStateMachinePrivate::QStateMachinePrivate()
     stop = false;
     error = QStateMachine::NoError;
     globalRestorePolicy = QStateMachine::DoNotRestoreProperties;
-    rootState = 0;
     signalEventGenerator = 0;
 #ifndef QT_NO_ANIMATION
     animationsEnabled = true;
@@ -255,6 +229,11 @@ QStateMachinePrivate *QStateMachinePrivate::get(QStateMachine *q)
     return 0;
 }
 
+QState *QStateMachinePrivate::rootState() const
+{
+    return const_cast<QStateMachine*>(q_func());
+}
+
 static QEvent *cloneEvent(QEvent *e)
 {
     switch (e->type()) {
@@ -302,7 +281,9 @@ bool QStateMachinePrivate::stateEntryLessThan(QAbstractState *s1, QAbstractState
     } else if (isDescendantOf(s2, s1)) {
         return true;
     } else {
-        QState *lca = findLCA(QList<QAbstractState*>() << s1 << s2);
+        Q_ASSERT(s1->machine() != 0);
+        QStateMachinePrivate *mach = QStateMachinePrivate::get(s1->machine());
+        QState *lca = mach->findLCA(QList<QAbstractState*>() << s1 << s2);
         Q_ASSERT(lca != 0);
         return (indexOfDescendant(lca, s1) < indexOfDescendant(lca, s2));
     }
@@ -318,17 +299,19 @@ bool QStateMachinePrivate::stateExitLessThan(QAbstractState *s1, QAbstractState
     } else if (isDescendantOf(s2, s1)) {
         return false;
     } else {
-        QState *lca = findLCA(QList<QAbstractState*>() << s1 << s2);
+        Q_ASSERT(s1->machine() != 0);
+        QStateMachinePrivate *mach = QStateMachinePrivate::get(s1->machine());
+        QState *lca = mach->findLCA(QList<QAbstractState*>() << s1 << s2);
         Q_ASSERT(lca != 0);
         return (indexOfDescendant(lca, s1) < indexOfDescendant(lca, s2));
     }
 }
 
-QState *QStateMachinePrivate::findLCA(const QList<QAbstractState*> &states)
+QState *QStateMachinePrivate::findLCA(const QList<QAbstractState*> &states) const
 {
     if (states.isEmpty())
         return 0;
-    QList<QState*> ancestors = properAncestors(states.at(0), 0);
+    QList<QState*> ancestors = properAncestors(states.at(0), rootState()->parentState());
     for (int i = 0; i < ancestors.size(); ++i) {
         QState *anc = ancestors.at(i);
         bool ok = true;
@@ -376,7 +359,7 @@ QSet<QAbstractTransition*> QStateMachinePrivate::selectTransitions(QEvent *event
             continue;
         if (isPreempted(state, enabledTransitions))
             continue;
-        QList<QState*> lst = properAncestors(state, 0);
+        QList<QState*> lst = properAncestors(state, rootState()->parentState());
         if (QState *grp = qobject_cast<QState*>(state))
             lst.prepend(grp);
         bool found = false;
@@ -412,7 +395,9 @@ void QStateMachinePrivate::microstep(QEvent *event, const QList<QAbstractTransit
 #endif
     executeTransitionContent(event, enabledTransitions);
     QList<QAbstractState*> enteredStates = enterStates(event, enabledTransitions);
+#ifndef QT_NO_PROPERTIES
     applyProperties(enabledTransitions, exitedStates, enteredStates);
+#endif
 #ifdef QSTATEMACHINE_DEBUG
     qDebug() << q_func() << ": configuration after entering states:" << configuration;
     qDebug() << q_func() << ": end microstep";
@@ -557,11 +542,13 @@ QList<QAbstractState*> QStateMachinePrivate::enterStates(QEvent *event, const QL
         if (isFinal(s)) {
             QState *parent = s->parentState();
             if (parent) {
-                QState *grandparent = parent->parentState();
+                if (parent != rootState()) {
 #ifdef QSTATEMACHINE_DEBUG
-                qDebug() << q << ": emitting finished signal for" << parent;
+                    qDebug() << q << ": emitting finished signal for" << parent;
 #endif
-                QStatePrivate::get(parent)->emitFinished();
+                    QStatePrivate::get(parent)->emitFinished();
+                }
+                QState *grandparent = parent->parentState();
                 if (grandparent && isParallel(grandparent)) {
                     bool allChildStatesFinal = true;
                     QList<QAbstractState*> childStates = QStatePrivate::get(grandparent)->childStates();
@@ -572,7 +559,7 @@ QList<QAbstractState*> QStateMachinePrivate::enterStates(QEvent *event, const QL
                             break;
                         }
                     }
-                    if (allChildStatesFinal) {
+                    if (allChildStatesFinal && (grandparent != rootState())) {
 #ifdef QSTATEMACHINE_DEBUG
                         qDebug() << q << ": emitting finished signal for" << grandparent;
 #endif
@@ -585,7 +572,7 @@ QList<QAbstractState*> QStateMachinePrivate::enterStates(QEvent *event, const QL
     {
         QSet<QAbstractState*>::const_iterator it;
         for (it = configuration.constBegin(); it != configuration.constEnd(); ++it) {
-            if (isFinal(*it) && (*it)->parentState() == rootState) {
+            if (isFinal(*it) && (*it)->parentState() == rootState()) {
                 processing = false;
                 stopProcessingReason = Finished;
                 break;
@@ -630,6 +617,11 @@ void QStateMachinePrivate::addStatesToEnter(QAbstractState *s, QState *root,
 			}
 		}
 	} else {
+            if (s == rootState()) {
+                // Error has already been set by exitStates().
+                Q_ASSERT(error != QStateMachine::NoError);
+                return;
+            }
 		statesToEnter.insert(s);
 		if (isParallel(s)) {
 			QState *grp = qobject_cast<QState*>(s);
@@ -643,6 +635,7 @@ void QStateMachinePrivate::addStatesToEnter(QAbstractState *s, QState *root,
 			QState *grp = qobject_cast<QState*>(s);
 			QAbstractState *initial = grp->initialState();
 			if (initial != 0) {
+                            Q_ASSERT(initial->machine() == q_func());
 				addStatesToEnter(initial, grp, statesToEnter, statesForDefaultEntry);
 			} else {
 				setError(QStateMachine::NoInitialStateError, grp);
@@ -675,6 +668,8 @@ void QStateMachinePrivate::addStatesToEnter(QAbstractState *s, QState *root,
 	}
 }
 
+#ifndef QT_NO_PROPERTIES
+
 void QStateMachinePrivate::applyProperties(const QList<QAbstractTransition*> &transitionList,
                                            const QList<QAbstractState*> &exitedStates,
                                            const QList<QAbstractState*> &enteredStates)
@@ -862,6 +857,8 @@ void QStateMachinePrivate::applyProperties(const QList<QAbstractTransition*> &tr
     }
 }
 
+#endif // QT_NO_PROPERTIES
+
 bool QStateMachinePrivate::isFinal(const QAbstractState *s)
 {
     return qobject_cast<const QFinalState*>(s) != 0;
@@ -873,20 +870,26 @@ bool QStateMachinePrivate::isParallel(const QAbstractState *s)
     return ss && (QStatePrivate::get(ss)->childMode == QState::ParallelStates);
 }
 
-bool QStateMachinePrivate::isCompound(const QAbstractState *s)
+bool QStateMachinePrivate::isCompound(const QAbstractState *s) const
 {
     const QState *group = qobject_cast<const QState*>(s);
     if (!group)
         return false;
+    bool isMachine = (qobject_cast<const QStateMachine*>(group) != 0);
+    // Don't treat the machine as compound if it's a sub-state of this machine
+    if (isMachine && (group != rootState()))
+        return false;
     return (!isParallel(group) && !QStatePrivate::get(group)->childStates().isEmpty())
-        || (qobject_cast<QStateMachine*>(group->parent()) != 0);
+        || isMachine;
 }
 
-bool QStateMachinePrivate::isAtomic(const QAbstractState *s)
+bool QStateMachinePrivate::isAtomic(const QAbstractState *s) const
 {
     const QState *ss = qobject_cast<const QState*>(s);
     return (ss && QStatePrivate::get(ss)->childStates().isEmpty())
-         || isFinal(s);
+        || isFinal(s)
+        // Treat the machine as atomic if it's a sub-state of this machine
+        || (ss && (qobject_cast<const QStateMachine*>(ss) != 0) && (ss != rootState()));
 }
 
 
@@ -935,6 +938,8 @@ bool QStateMachinePrivate::isInFinalState(QAbstractState* s) const
         return false;
 }
 
+#ifndef QT_NO_PROPERTIES
+
 void QStateMachinePrivate::registerRestorable(QObject *object, const QByteArray &propertyName)
 {
     RestorableId id(object, propertyName);
@@ -979,6 +984,8 @@ void QStateMachinePrivate::unregisterRestorable(QObject *object, const QByteArra
     registeredRestorables.remove(id);
 }
 
+#endif // QT_NO_PROPERTIES
+
 QAbstractState *QStateMachinePrivate::findErrorState(QAbstractState *context)
 {
     // Find error state recursively in parent hierarchy if not set explicitly for context state
@@ -1034,7 +1041,7 @@ void QStateMachinePrivate::setError(QStateMachine::Error errorCode, QAbstractSta
     if (currentContext == currentErrorState)
         currentErrorState = 0;    
 
-    Q_ASSERT(currentErrorState != rootState);
+    Q_ASSERT(currentErrorState != rootState());
 
     if (currentErrorState != 0) {    
         QState *lca = findLCA(QList<QAbstractState*>() << currentErrorState << currentContext);
@@ -1091,12 +1098,14 @@ void QStateMachinePrivate::_q_animationFinished()
         resetAnimationEndValues.remove(anim);
     }
 
+#ifndef QT_NO_PROPERTIES
     // Set the final property value.
     QPropertyAssignment assn = propertyForAnimation.take(anim);
     Q_ASSERT(assn.object != 0);
     assn.object->setProperty(assn.propertyName, assn.value);
     if (!assn.explicitlySet)
         unregisterRestorable(assn.object, assn.propertyName);
+#endif
 
     QAbstractState *state = stateForAnimation.take(anim);
     Q_ASSERT(state != 0);
@@ -1141,11 +1150,8 @@ void QStateMachinePrivate::_q_start()
 {
     Q_Q(QStateMachine);
     Q_ASSERT(state == Starting);
-    if (!rootState) {
-        state = NotRunning;
-        return;
-    }
-    QAbstractState *initial = rootState->initialState();
+    Q_ASSERT(rootState() != 0);
+    QAbstractState *initial = rootState()->initialState();
     configuration.clear();
     qDeleteAll(internalEventQueue);
     internalEventQueue.clear();
@@ -1159,7 +1165,7 @@ void QStateMachinePrivate::_q_start()
     processingScheduled = true; // we call _q_process() below
     emit q->started();
 
-    StartState *start = new StartState(rootState);
+    StartState *start = new StartState(rootState());
     QAbstractTransition *initialTransition = new InitialTransition(initial);
     start->addTransition(initialTransition);
     QList<QAbstractTransition*> transitions;
@@ -1167,8 +1173,10 @@ void QStateMachinePrivate::_q_start()
     QEvent nullEvent(QEvent::None);
     executeTransitionContent(&nullEvent, transitions);
     QList<QAbstractState*> enteredStates = enterStates(&nullEvent, transitions);
+#ifndef QT_NO_PROPERTIES
     applyProperties(transitions, QList<QAbstractState*>() << start,
                     enteredStates);
+#endif
     delete start;
 
 #ifdef QSTATEMACHINE_DEBUG
@@ -1371,15 +1379,22 @@ void QStateMachinePrivate::unregisterSignalTransition(QSignalTransition *transit
 
 void QStateMachinePrivate::unregisterAllTransitions()
 {
+    Q_Q(QStateMachine);
     {
-        QList<QSignalTransition*> transitions = qFindChildren<QSignalTransition*>(rootState);
-        for (int i = 0; i < transitions.size(); ++i)
-            unregisterSignalTransition(transitions.at(i));
+        QList<QSignalTransition*> transitions = qFindChildren<QSignalTransition*>(rootState());
+        for (int i = 0; i < transitions.size(); ++i) {
+            QSignalTransition *t = transitions.at(i);
+            if (t->machine() == q)
+                unregisterSignalTransition(t);
+        }
     }
     {
-        QList<QEventTransition*> transitions = qFindChildren<QEventTransition*>(rootState);
-        for (int i = 0; i < transitions.size(); ++i)
-            unregisterEventTransition(transitions.at(i));
+        QList<QEventTransition*> transitions = qFindChildren<QEventTransition*>(rootState());
+        for (int i = 0; i < transitions.size(); ++i) {
+            QEventTransition *t = transitions.at(i);
+            if (t->machine() == q)
+                unregisterEventTransition(t);
+        }
     }
 }
 
@@ -1457,16 +1472,20 @@ void QStateMachinePrivate::handleTransitionSignal(const QObject *sender, int sig
   Constructs a new state machine with the given \a parent.
 */
 QStateMachine::QStateMachine(QObject *parent)
-    : QObject(*new QStateMachinePrivate, parent)
+    : QState(*new QStateMachinePrivate, /*parentState=*/0)
 {
+    // Can't pass the parent to the QState constructor, as it expects a QState
+    // But this works as expected regardless of whether parent is a QState or not
+    setParent(parent);
 }
 
 /*!
   \internal
 */
 QStateMachine::QStateMachine(QStateMachinePrivate &dd, QObject *parent)
-    : QObject(dd, parent)
+    : QState(dd, /*parentState=*/0)
 {
+    setParent(parent);
 }
 
 /*!
@@ -1476,69 +1495,6 @@ QStateMachine::~QStateMachine()
 {
 }
 
-namespace {
-
-class RootState : public QState
-{
-public:
-    RootState(QState *parent)
-        : QState(parent)
-    {                
-    }
-
-    void onEntry(QEvent *) {}
-    void onExit(QEvent *) {}
-};
-
-} // namespace
-
-/*!
-  Returns this state machine's root state.
-*/
-QState *QStateMachine::rootState() const
-{
-    Q_D(const QStateMachine);
-    if (!d->rootState) {
-        const_cast<QStateMachinePrivate*>(d)->rootState = new RootState(0);
-        d->rootState->setParent(const_cast<QStateMachine*>(this));
-    }
-    return d->rootState;
-}
-
-/*!
-  Returns the error state of the state machine's root state. 
-
-  \sa QState::errorState()
-*/
-QAbstractState *QStateMachine::errorState() const
-{
-    return rootState()->errorState();
-}
-
-/*!
-  Sets the error state of this state machine's root state to be \a state. When a running state 
-  machine encounters an error which puts it in an undefined state, it will enter an error state 
-  based on the context of the error that occurred. It will enter this state regardless of what 
-  is currently in the event queue.
-  
-  If the erroneous state has an error state set, this will be entered by the machine. If no error
-  state has been set, the state machine will search the parent hierarchy recursively for an 
-  error state. The error state of the root state can thus be seen as a global error state that 
-  applies for all states for which a more specific error state has not been set.
-  
-  Before entering the error state, the state machine will set the error code returned by error() and 
-  error message returned by errorString(). 
-
-  If there is no error state available for the erroneous state, the state machine will print a 
-  warning message on the console and stop executing.
-
-  \sa QState::setErrorState(), rootState()
-*/
-void QStateMachine::setErrorState(QAbstractState *state)
-{
-    rootState()->setErrorState(state);
-}
-
 /*! \enum QStateMachine::Error 
 
     This enum type defines errors that can occur in the state machine at run time. When the state
@@ -1640,39 +1596,13 @@ void QStateMachine::setGlobalRestorePolicy(QStateMachine::RestorePolicy restoreP
 }
 
 /*!
-  Returns this state machine's initial state, or 0 if no initial state has
-  been set.
-*/
-QAbstractState *QStateMachine::initialState() const
-{
-    Q_D(const QStateMachine);
-    if (!d->rootState)
-        return 0;
-    return d->rootState->initialState();
-}
-
-/*!
-  Sets this state machine's initial \a state.
-*/
-void QStateMachine::setInitialState(QAbstractState *state)
-{
-    Q_D(QStateMachine);
-    if (!d->rootState) {
-        if (!state)
-            return;
-        rootState()->setInitialState(state);
-    }
-    d->rootState->setInitialState(state);
-}
-
-/*!
   Adds the given \a state to this state machine. The state becomes a top-level
-  state (i.e. a child of the rootState()).
+  state.
 
   If the state is already in a different machine, it will first be removed
   from its old machine, and then added to this machine.
 
-  \sa removeState(), rootState(), setInitialState()
+  \sa removeState(), setInitialState()
 */
 void QStateMachine::addState(QAbstractState *state)
 {
@@ -1684,7 +1614,7 @@ void QStateMachine::addState(QAbstractState *state)
         qWarning("QStateMachine::addState: state has already been added to this machine");
         return;
     }
-    state->setParent(rootState());
+    state->setParent(this);
 }
 
 /*!
@@ -1730,7 +1660,7 @@ void QStateMachine::start()
 {
     Q_D(QStateMachine);
 
-    if (rootState()->initialState() == 0) {
+    if (initialState() == 0) {
         qWarning("QStateMachine::start: No initial state set for machine. Refusing to start.");
         return;
     }
@@ -1821,7 +1751,7 @@ void QStateMachine::postInternalEvent(QEvent *event)
    Returns the maximal consistent set of states (including parallel and final
    states) that this state machine is currently in. If a state \c s is in the
    configuration, it is always the case that the parent of \c s is also in
-   c. Note, however, that the rootState() is not an explicit member of the
+   c. Note, however, that the machine itself is not an explicit member of the
    configuration.
 */
 QSet<QAbstractState*> QStateMachine::configuration() const
@@ -1840,15 +1770,6 @@ QSet<QAbstractState*> QStateMachine::configuration() const
 */
 
 /*!
-  \fn QStateMachine::finished()
-
-  This signal is emitted when the state machine has reached a top-level final
-  state (QFinalState).
-
-  \sa QStateMachine::started()
-*/
-
-/*!
   \fn QStateMachine::stopped()
 
   This signal is emitted when the state machine has stopped.
@@ -1872,14 +1793,6 @@ bool QStateMachine::event(QEvent *e)
             d->scheduleProcess();
             return true;
         }
-    } else if (e->type() == QEvent::ChildAdded) {
-        QChildEvent *ce = static_cast<QChildEvent*>(e);
-        if (QAbstractState *state = qobject_cast<QAbstractState*>(ce->child())) {
-            if (state != rootState()) {
-                state->setParent(rootState());
-                return true;
-            }
-        }
     }
     return QObject::event(e);
 }
@@ -1949,6 +1862,24 @@ void QStateMachine::endMicrostep(QEvent *event)
     Q_UNUSED(event);
 }
 
+/*!
+  \reimp
+*/
+void QStateMachine::onEntry(QEvent *event)
+{
+    start();
+    QState::onEntry(event);
+}
+
+/*!
+  \reimp
+*/
+void QStateMachine::onExit(QEvent *event)
+{
+    stop();
+    QState::onExit(event);
+}
+
 #ifndef QT_NO_ANIMATION
 
 /*!
@@ -2155,6 +2086,8 @@ QSignalEvent::~QSignalEvent()
 
   Constructs a new QWrappedEvent object with the given \a object
   and \a event.
+
+  The QWrappedEvent object takes ownership of \a event.
 */
 QWrappedEvent::QWrappedEvent(QObject *object, QEvent *event)
     : QEvent(QEvent::Wrapped), m_object(object), m_event(event)
@@ -2166,6 +2099,7 @@ QWrappedEvent::QWrappedEvent(QObject *object, QEvent *event)
 */
 QWrappedEvent::~QWrappedEvent()
 {
+    delete m_event;
 }
 
 /*!
diff --git a/src/corelib/statemachine/qstatemachine.h b/src/corelib/statemachine/qstatemachine.h
index 30d0e3a..230d852 100644
--- a/src/corelib/statemachine/qstatemachine.h
+++ b/src/corelib/statemachine/qstatemachine.h
@@ -42,7 +42,7 @@
 #ifndef QSTATEMACHINE_H
 #define QSTATEMACHINE_H
 
-#include <QtCore/qabstractstate.h>
+#include <QtCore/qstate.h>
 
 #include <QtCore/qlist.h>
 #include <QtCore/qobject.h>
@@ -57,18 +57,12 @@ QT_MODULE(Core)
 #ifndef QT_NO_STATEMACHINE
 
 class QEvent;
-class QAbstractState;
-class QState;
 
 class QStateMachinePrivate;
 class QAbstractAnimation;
-class QAbstractState;
-class Q_CORE_EXPORT QStateMachine : public QObject
+class Q_CORE_EXPORT QStateMachine : public QState
 {
     Q_OBJECT
-    Q_PROPERTY(QState* rootState READ rootState)
-    Q_PROPERTY(QAbstractState* initialState READ initialState WRITE setInitialState)
-    Q_PROPERTY(QAbstractState* errorState READ errorState WRITE setErrorState)
     Q_PROPERTY(QString errorString READ errorString)
     Q_PROPERTY(RestorePolicy globalRestorePolicy READ globalRestorePolicy WRITE setGlobalRestorePolicy)
     Q_ENUMS(RestorePolicy)
@@ -94,14 +88,6 @@ public:
     void addState(QAbstractState *state);
     void removeState(QAbstractState *state);
 
-    QState *rootState() const;
-
-    QAbstractState *initialState() const;
-    void setInitialState(QAbstractState *state);
-
-    QAbstractState *errorState() const;
-    void setErrorState(QAbstractState *state);
-
     Error error() const;
     QString errorString() const;
     void clearError();
@@ -135,9 +121,11 @@ public Q_SLOTS:
 Q_SIGNALS:
     void started();
     void stopped();
-    void finished();
 
 protected:
+    void onEntry(QEvent *event);
+    void onExit(QEvent *event);
+
     void postInternalEvent(QEvent *event);
 
     virtual void beginSelectTransitions(QEvent *event);
diff --git a/src/corelib/statemachine/qstatemachine_p.h b/src/corelib/statemachine/qstatemachine_p.h
index 1335b93..cae21aa 100644
--- a/src/corelib/statemachine/qstatemachine_p.h
+++ b/src/corelib/statemachine/qstatemachine_p.h
@@ -53,7 +53,8 @@
 // We mean it.
 //
 
-#include <private/qobject_p.h>
+#include "private/qstate_p.h"
+
 #include <QtCore/qcoreevent.h>
 #include <QtCore/qhash.h>
 #include <QtCore/qlist.h>
@@ -61,9 +62,6 @@
 #include <QtCore/qset.h>
 #include <QtCore/qvector.h>
 
-#include "qstate.h"
-#include "private/qstate_p.h"
-
 QT_BEGIN_NAMESPACE
 
 class QEvent;
@@ -81,7 +79,7 @@ class QAbstractAnimation;
 #endif
 
 class QStateMachine;
-class QStateMachinePrivate : public QObjectPrivate
+class QStateMachinePrivate : public QStatePrivate
 {
     Q_DECLARE_PUBLIC(QStateMachine)
 public:
@@ -101,7 +99,7 @@ public:
 
     static QStateMachinePrivate *get(QStateMachine *q);
 
-    static QState *findLCA(const QList<QAbstractState*> &states);
+    QState *findLCA(const QList<QAbstractState*> &states) const;
 
     static bool stateEntryLessThan(QAbstractState *s1, QAbstractState *s2);
     static bool stateExitLessThan(QAbstractState *s1, QAbstractState *s2);
@@ -116,6 +114,8 @@ public:
     void _q_animationFinished();
 #endif
 
+    QState *rootState() const;
+
     void microstep(QEvent *event, const QList<QAbstractTransition*> &transitionList);
     bool isPreempted(const QAbstractState *s, const QSet<QAbstractTransition*> &transitions) const;
     QSet<QAbstractTransition*> selectTransitions(QEvent *event) const;
@@ -133,8 +133,8 @@ public:
     bool isInFinalState(QAbstractState *s) const;
     static bool isFinal(const QAbstractState *s);
     static bool isParallel(const QAbstractState *s);
-    static bool isCompound(const QAbstractState *s);
-    static bool isAtomic(const QAbstractState *s);
+    bool isCompound(const QAbstractState *s) const;
+    bool isAtomic(const QAbstractState *s) const;
     static bool isDescendantOf(const QAbstractState *s, const QAbstractState *other);
     static QList<QState*> properAncestors(const QAbstractState *s, const QState *upperBound);
 
@@ -151,6 +151,7 @@ public:
                                 void **args);    
     void scheduleProcess();
     
+#ifndef QT_NO_PROPERTIES
     typedef QPair<QObject *, QByteArray> RestorableId;
     QHash<RestorableId, QVariant> registeredRestorables;
     void registerRestorable(QObject *object, const QByteArray &propertyName);
@@ -158,13 +159,13 @@ public:
     bool hasRestorable(QObject *object, const QByteArray &propertyName) const;
     QVariant restorableValue(QObject *object, const QByteArray &propertyName) const;
     QList<QPropertyAssignment> restorablesToPropertyList(const QHash<RestorableId, QVariant> &restorables) const;
+#endif
 
     State state;
     bool processing;
     bool processingScheduled;
     bool stop;
     StopProcessingReason stopProcessingReason;
-    QState *rootState;
     QSet<QAbstractState*> configuration;
     QList<QEvent*> internalEventQueue;
     QList<QEvent*> externalEventQueue;
diff --git a/src/corelib/thread/qmutex_win.cpp b/src/corelib/thread/qmutex_win.cpp
index f2022a5..ae79735 100644
--- a/src/corelib/thread/qmutex_win.cpp
+++ b/src/corelib/thread/qmutex_win.cpp
@@ -39,7 +39,7 @@
 **
 ****************************************************************************/
 
-#include <windows.h>
+#include <qt_windows.h>
 
 #include "qmutex.h"
 #include <qatomic.h>
@@ -50,19 +50,7 @@ QT_BEGIN_NAMESPACE
 QMutexPrivate::QMutexPrivate(QMutex::RecursionMode mode)
     : recursive(mode == QMutex::Recursive), contenders(0), lastSpinCount(0), owner(0), count(0)
 {
-    if (QSysInfo::WindowsVersion == 0) {
-        // mutex was created before initializing WindowsVersion. this
-        // can happen when creating the resource file engine handler,
-        // for example. try again with just the A version
-#ifdef Q_OS_WINCE
-        event = CreateEventW(0, FALSE, FALSE, 0);
-#else
-        event = CreateEventA(0, FALSE, FALSE, 0);
-#endif
-    } else {
-        event = QT_WA_INLINE(CreateEventW(0, FALSE, FALSE, 0),
-                             CreateEventA(0, FALSE, FALSE, 0));
-    }
+    event = CreateEvent(0, FALSE, FALSE, 0);
     if (!event)
         qWarning("QMutexPrivate::QMutexPrivate: Cannot create event");
 }
diff --git a/src/corelib/thread/qreadwritelock.h b/src/corelib/thread/qreadwritelock.h
index 51d42b5..4742bea 100644
--- a/src/corelib/thread/qreadwritelock.h
+++ b/src/corelib/thread/qreadwritelock.h
@@ -190,7 +190,8 @@ inline QWriteLocker::QWriteLocker(QReadWriteLock *areadWriteLock)
 class Q_CORE_EXPORT QReadWriteLock
 {
 public:
-    inline explicit QReadWriteLock() { }
+    enum RecursionMode { NonRecursive, Recursive };
+    inline explicit QReadWriteLock(RecursionMode = NonRecursive) { }
     inline ~QReadWriteLock() { }
 
     static inline void lockForRead() { }
diff --git a/src/corelib/thread/qthread.cpp b/src/corelib/thread/qthread.cpp
index fac50ee..1cf4bc9 100644
--- a/src/corelib/thread/qthread.cpp
+++ b/src/corelib/thread/qthread.cpp
@@ -264,9 +264,14 @@ QThreadPrivate::~QThreadPrivate()
     Returns the thread handle of the currently executing thread.
 
     \warning The handle returned by this function is used for internal
-    purposes and should not be used in any application code. On
-    Windows, the returned value is a pseudo-handle for the current
-    thread that cannot be used for numerical comparison.
+    purposes and should not be used in any application code.
+
+    \warning On Windows, the returned value is a pseudo-handle for the
+    current thread. It can't be used for numerical comparison. i.e.,
+    this function returns the DWORD (Windows-Thread ID) returned by
+    the Win32 function getCurrentThreadId(), not the HANDLE
+    (Windows-Thread HANDLE) returned by the Win32 function
+    getCurrentThread().
 */
 
 /*!
diff --git a/src/corelib/thread/qthread_win.cpp b/src/corelib/thread/qthread_win.cpp
index 8bf6269..d8a1876 100644
--- a/src/corelib/thread/qthread_win.cpp
+++ b/src/corelib/thread/qthread_win.cpp
@@ -54,7 +54,7 @@
 #include <private/qcoreapplication_p.h>
 #include <private/qeventdispatcher_win_p.h>
 
-#include <windows.h>
+#include <qt_windows.h>
 
 
 #ifndef Q_OS_WINCE
@@ -170,8 +170,7 @@ void qt_watch_adopted_thread(const HANDLE adoptedThreadHandle, QThread *qthread)
     // Start watcher thread if it is not already running.
     if (qt_adopted_thread_watcher_handle == 0) {
         if (qt_adopted_thread_wakeup == 0) {
-            qt_adopted_thread_wakeup = QT_WA_INLINE(CreateEventW(0, false, false, 0),
-                                                    CreateEventA(0, false, false, 0));
+            qt_adopted_thread_wakeup = CreateEvent(0, false, false, 0);
             qt_adopted_thread_handles.prepend(qt_adopted_thread_wakeup);
         }
 
@@ -371,11 +370,10 @@ int QThread::idealThreadCount()
 void QThread::yieldCurrentThread()
 {
 #ifndef Q_OS_WINCE
-    if (QSysInfo::WindowsVersion & QSysInfo::WV_NT_based)
-        SwitchToThread();
-    else
+    SwitchToThread();
+#else
+    ::Sleep(0);
 #endif
-        ::Sleep(0);
 }
 
 void QThread::sleep(unsigned long secs)
@@ -426,17 +424,11 @@ void QThread::start(Priority priority)
         return;
     }
 
-    // Since Win 9x will have problems if the priority is idle or time critical
-    // we have to use the closest one instead
     int prio;
     d->priority = priority;
     switch (d->priority) {
     case IdlePriority:
-        if (QSysInfo::WindowsVersion & QSysInfo::WV_DOS_based) {
-            prio = THREAD_PRIORITY_LOWEST;
-        } else {
-            prio = THREAD_PRIORITY_IDLE;
-        }
+        prio = THREAD_PRIORITY_IDLE;
         break;
 
     case LowestPriority:
@@ -460,11 +452,7 @@ void QThread::start(Priority priority)
         break;
 
     case TimeCriticalPriority:
-        if (QSysInfo::WindowsVersion & QSysInfo::WV_DOS_based) {
-            prio = THREAD_PRIORITY_HIGHEST;
-        } else {
-            prio = THREAD_PRIORITY_TIME_CRITICAL;
-        }
+        prio = THREAD_PRIORITY_TIME_CRITICAL;
         break;
 
     case InheritPriority:
@@ -570,17 +558,11 @@ void QThread::setPriority(Priority priority)
 
     // copied from start() with a few modifications:
 
-    // Since Win 9x will have problems if the priority is idle or time critical
-    // we have to use the closest one instead
     int prio;
     d->priority = priority;
     switch (d->priority) {
     case IdlePriority:
-        if (QSysInfo::WindowsVersion & QSysInfo::WV_DOS_based) {
-            prio = THREAD_PRIORITY_LOWEST;
-        } else {
-            prio = THREAD_PRIORITY_IDLE;
-        }
+        prio = THREAD_PRIORITY_IDLE;
         break;
 
     case LowestPriority:
@@ -604,11 +586,7 @@ void QThread::setPriority(Priority priority)
         break;
 
     case TimeCriticalPriority:
-        if (QSysInfo::WindowsVersion & QSysInfo::WV_DOS_based) {
-            prio = THREAD_PRIORITY_HIGHEST;
-        } else {
-            prio = THREAD_PRIORITY_TIME_CRITICAL;
-        }
+        prio = THREAD_PRIORITY_TIME_CRITICAL;
         break;
 
     case InheritPriority:
diff --git a/src/corelib/thread/qwaitcondition_win.cpp b/src/corelib/thread/qwaitcondition_win.cpp
index 9129fb6..b0146d2 100644
--- a/src/corelib/thread/qwaitcondition_win.cpp
+++ b/src/corelib/thread/qwaitcondition_win.cpp
@@ -64,11 +64,7 @@ class QWaitConditionEvent
 public:
     inline QWaitConditionEvent() : priority(0), wokenUp(false)
     {
-        QT_WA ({
-            event = CreateEvent(NULL, TRUE, FALSE, NULL);
-        }, {
-            event = CreateEventA(NULL, TRUE, FALSE, NULL);
-        });
+        event = CreateEvent(NULL, TRUE, FALSE, NULL);
     }
     inline ~QWaitConditionEvent() { CloseHandle(event); }
     int priority;
diff --git a/src/corelib/tools/qbytedata_p.h b/src/corelib/tools/qbytedata_p.h
new file mode 100644
index 0000000..cc10ea2
--- /dev/null
+++ b/src/corelib/tools/qbytedata_p.h
@@ -0,0 +1,203 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtCore module 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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at http://www.qtsoftware.com/contact.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QBYTEDATA_H
+#define QBYTEDATA_H
+
+#include <qbytearray.h>
+
+
+QT_BEGIN_NAMESPACE
+
+// this class handles a list of QByteArrays. It is a variant of QRingBuffer
+// that avoid malloc/realloc/memcpy.
+class QByteDataBuffer
+{
+private:
+    QList<QByteArray> buffers;
+    qint64 bufferCompleteSize;
+public:
+    QByteDataBuffer() : bufferCompleteSize(0)
+    {
+    }
+
+    ~QByteDataBuffer()
+    {
+        clear();
+    }
+
+    inline void append(QByteDataBuffer& other)
+    {
+        if (other.isEmpty())
+            return;
+
+        buffers.append(other.buffers);
+        bufferCompleteSize += other.byteAmount();
+    }
+
+
+    inline void append(QByteArray& bd)
+    {
+        if (bd.isEmpty())
+            return;
+
+        buffers.append(bd);
+        bufferCompleteSize += bd.size();
+    }
+
+    inline void prepend(QByteArray& bd)
+    {
+        if (bd.isEmpty())
+            return;
+
+        buffers.prepend(bd);
+        bufferCompleteSize += bd.size();
+    }
+
+    // return the first QByteData. User of this function has to qFree() its .data!
+    // preferably use this function to read data.
+    inline QByteArray read()
+    {
+        bufferCompleteSize -= buffers.first().size();
+        return buffers.takeFirst();
+    }
+
+    // return everything. User of this function has to qFree() its .data!
+    // avoid to use this, it might malloc and memcpy.
+    inline QByteArray readAll()
+    {
+        return read(byteAmount());
+    }
+
+    // return amount. User of this function has to qFree() its .data!
+    // avoid to use this, it might malloc and memcpy.
+    inline QByteArray read(qint64 amount)
+    {
+        amount = qMin(byteAmount(), amount);
+        QByteArray byteData;
+        byteData.resize(amount);
+        read(byteData.data(), byteData.size());
+        return byteData;
+    }
+
+    // return amount bytes. User of this function has to qFree() its .data!
+    // avoid to use this, it will memcpy.
+    qint64 read(char* dst, qint64 amount)
+    {
+        amount = qMin(amount, byteAmount());
+        qint64 originalAmount = amount;
+        char *writeDst = dst;
+
+        while (amount > 0) {
+            QByteArray first = buffers.takeFirst();
+            if (amount >= first.size()) {
+                // take it completely
+                bufferCompleteSize -= first.size();
+                amount -= first.size();
+                memcpy(writeDst, first.constData(), first.size());
+                writeDst += first.size();
+                first.clear();
+            } else {
+                // take a part of it & it is the last one to take
+                bufferCompleteSize -= amount;
+                memcpy(writeDst, first.constData(), amount);
+
+                qint64 newFirstSize = first.size() - amount;
+                QByteArray newFirstData;
+                newFirstData.resize(newFirstSize);
+                memcpy(newFirstData.data(), first.constData() + amount, newFirstSize);
+                buffers.prepend(newFirstData);
+
+                amount = 0;
+                first.clear();
+            }
+        }
+
+        return originalAmount;
+    }
+
+    inline char getChar()
+    {
+        char c;
+        read(&c, 1);
+        return c;
+    }
+
+    inline void clear()
+    {
+        buffers.clear();
+        bufferCompleteSize = 0;
+    }
+
+    // The byte count of all QByteArrays
+    inline qint64 byteAmount() const
+    {
+        return bufferCompleteSize;
+    }
+
+    // the number of QByteArrays
+    inline qint64 bufferCount() const
+    {
+        return buffers.length();
+    }
+
+    inline bool isEmpty() const
+    {
+        return byteAmount() == 0;
+    }
+
+    inline qint64 sizeNextBlock() const
+    {
+        if(buffers.isEmpty())
+            return 0;
+        else
+            return buffers.first().size();
+    }
+
+    inline QByteArray& operator[](int i)
+    {
+        return buffers[i];
+    }
+};
+
+QT_END_NAMESPACE
+
+#endif // QBYTEDATA_H
diff --git a/src/corelib/tools/qchar.cpp b/src/corelib/tools/qchar.cpp
index 88053d6..458a383 100644
--- a/src/corelib/tools/qchar.cpp
+++ b/src/corelib/tools/qchar.cpp
@@ -1421,16 +1421,15 @@ QDataStream &operator>>(QDataStream &in, QChar &chr)
 // ---------------------------------------------------------------------------
 
 
-static QString decomposeHelper
-    (const QString &str, bool canonical, QChar::UnicodeVersion version)
+static void decomposeHelper(QString *str, bool canonical, QChar::UnicodeVersion version, int from)
 {
     unsigned short buffer[3];
 
-    QString s = str;
+    QString &s = *str;
 
-    const unsigned short *utf16 = s.utf16();
+    const unsigned short *utf16 = reinterpret_cast<unsigned short *>(s.data());
     const unsigned short *uc = utf16 + s.length();
-    while (uc != utf16) {
+    while (uc != utf16 + from) {
         uint ucs4 = *(--uc);
         if (QChar(ucs4).isLowSurrogate() && uc != utf16) {
             ushort high = *(uc - 1);
@@ -1450,11 +1449,9 @@ static QString decomposeHelper
         s.replace(uc - utf16, ucs4 > 0x10000 ? 2 : 1, (const QChar *)d, length);
         // since the insert invalidates the pointers and we do decomposition recursive
         int pos = uc - utf16;
-        utf16 = s.utf16();
+        utf16 = reinterpret_cast<unsigned short *>(s.data());
         uc = utf16 + pos + length;
     }
-
-    return s;
 }
 
 
@@ -1489,21 +1486,21 @@ static ushort ligatureHelper(ushort u1, ushort u2)
     return 0;
 }
 
-static QString composeHelper(const QString &str)
+static void composeHelper(QString *str, int from)
 {
-    QString s = str;
+    QString &s = *str;
 
-    if (s.length() < 2)
-        return s;
+    if (s.length() - from < 2)
+        return;
 
     // the loop can partly ignore high Unicode as all ligatures are in the BMP
     int starter = 0;
     int lastCombining = 0;
-    int pos = 0;
+    int pos = from;
     while (pos < s.length()) {
-        uint uc = s.utf16()[pos];
+        uint uc = s.at(pos).unicode();
         if (QChar(uc).isHighSurrogate() && pos < s.length()-1) {
-            ushort low = s.utf16()[pos+1];
+            ushort low = s.at(pos+1).unicode();
             if (QChar(low).isLowSurrogate()) {
                 uc = QChar::surrogateToUcs4(uc, low);
                 ++pos;
@@ -1512,7 +1509,7 @@ static QString composeHelper(const QString &str)
         int combining = QChar::combiningClass(uc);
         if (starter == pos - 1 || combining > lastCombining) {
             // allowed to form ligature with S
-            QChar ligature = ligatureHelper(s.utf16()[starter], uc);
+            QChar ligature = ligatureHelper(s.at(starter).unicode(), uc);
             if (ligature.unicode()) {
                 s[starter] = ligature;
                 s.remove(pos, 1);
@@ -1524,16 +1521,14 @@ static QString composeHelper(const QString &str)
         lastCombining = combining;
         ++pos;
     }
-    return s;
 }
 
 
-static QString canonicalOrderHelper
-    (const QString &str, QChar::UnicodeVersion version)
+static void canonicalOrderHelper(QString *str, QChar::UnicodeVersion version, int from)
 {
-    QString s = str;
+    QString &s = *str;
     const int l = s.length()-1;
-    int pos = 0;
+    int pos = from;
     while (pos < l) {
         int p2 = pos+1;
         uint u1 = s.at(pos).unicode();
@@ -1593,7 +1588,6 @@ static QString canonicalOrderHelper
                 ++pos;
         }
     }
-    return s;
 }
 
 int QT_FASTCALL QUnicodeTables::script(unsigned int uc)
diff --git a/src/corelib/tools/qcontiguouscache.cpp b/src/corelib/tools/qcontiguouscache.cpp
index e738ec8..f42b7a0 100644
--- a/src/corelib/tools/qcontiguouscache.cpp
+++ b/src/corelib/tools/qcontiguouscache.cpp
@@ -61,6 +61,7 @@ void QContiguousCacheData::dump() const
     \ingroup tools
     \ingroup shared
     \reentrant
+    \since 4.6
 
     The QContiguousCache class provides an efficient way of caching items for
     display in a user interface view.  Unlike QCache, it adds a restriction
@@ -95,7 +96,7 @@ MyRecord record(int row) const
     in the case where the requested row is a long way from the currently cached
     items. If there is a gap between where the new item is inserted and the currently
     cached items then the existing cached items are first removed to retain
-    the contiguous nature of the cache.  Hence it is important to take some care then
+    the contiguous nature of the cache. Hence it is important to take some care then
     when using insert() in order to avoid unwanted clearing of the cache.
 
     The range of valid indexes for the QContiguousCache class are from
@@ -104,9 +105,9 @@ MyRecord record(int row) const
     than INT_MAX can result in the indexes of the cache being invalid.
     When the cache indexes are invalid it is important to call
     normalizeIndexes() before calling any of containsIndex(), firstIndex(),
-    lastIndex(), at() or the [] operator.  Calling these
-    functions when the cache has invalid indexes will result in undefined
-    behavior.  The indexes can be checked by using areIndexesValid()
+    lastIndex(), at() or \l{QContiguousCache::operator[]()}{operator[]()}.
+    Calling these functions when the cache has invalid indexes will result in
+    undefined behavior. The indexes can be checked by using areIndexesValid()
 
     In most cases the indexes will not exceed 0 to INT_MAX, and
     normalizeIndexes() will not need to be used.
@@ -190,8 +191,6 @@ MyRecord record(int row) const
 
 /*! \fn int QContiguousCache::count() const
 
-    \overload
-
     Same as size().
 */
 
@@ -258,14 +257,15 @@ MyRecord record(int row) const
 
 /*! \fn T &QContiguousCache::operator[](int i)
 
-    Returns the item at index position \a i as a modifiable reference.  If
+    Returns the item at index position \a i as a modifiable reference. If
     the cache does not contain an item at the given index position \a i
     then it will first insert an empty item at that position.
 
     In most cases it is better to use either at() or insert().
 
-    Note that using non-const operators can cause QContiguousCache to do a deep
-    copy.
+    \note This non-const overload of operator[] requires QContiguousCache 
+    to make a deep copy. Use at() for read-only access to a non-const 
+    QContiguousCache.
 
     \sa insert(), at()
 */
diff --git a/src/corelib/tools/qcontiguouscache.h b/src/corelib/tools/qcontiguouscache.h
index 7d52f1e..0020d22 100644
--- a/src/corelib/tools/qcontiguouscache.h
+++ b/src/corelib/tools/qcontiguouscache.h
@@ -166,8 +166,8 @@ void QContiguousCache<T>::detach_helper()
 
     T *dest = x.d->array + x.d->start;
     T *src = d->array + d->start;
-    int count = x.d->count;
-    while (count--) {
+    int oldcount = x.d->count;
+    while (oldcount--) {
         if (QTypeInfo<T>::isComplex) {
             new (dest) T(*src);
         } else {
@@ -200,8 +200,8 @@ void QContiguousCache<T>::setCapacity(int asize)
     x.d->start = x.d->offset % x.d->alloc;
     T *dest = x.d->array + (x.d->start + x.d->count-1) % x.d->alloc;
     T *src = d->array + (d->start + d->count-1) % d->alloc;
-    int count = x.d->count;
-    while (count--) {
+    int oldcount = x.d->count;
+    while (oldcount--) {
         if (QTypeInfo<T>::isComplex) {
             new (dest) T(*src);
         } else {
@@ -224,10 +224,10 @@ void QContiguousCache<T>::clear()
 {
     if (d->ref == 1) {
         if (QTypeInfo<T>::isComplex) {
-            int count = d->count;
+            int oldcount = d->count;
             T * i = d->array + d->start;
             T * e = d->array + d->alloc;
-            while (count--) {
+            while (oldcount--) {
                 i->~T();
                 i++;
                 if (i == e)
@@ -254,11 +254,11 @@ inline QContiguousCacheData *QContiguousCache<T>::malloc(int aalloc)
 }
 
 template <typename T>
-QContiguousCache<T>::QContiguousCache(int capacity)
+QContiguousCache<T>::QContiguousCache(int cap)
 {
-    p = malloc(capacity);
+    p = malloc(cap);
     d->ref = 1;
-    d->alloc = capacity;
+    d->alloc = cap;
     d->count = d->start = d->offset = 0;
     d->sharable = true;
 }
@@ -295,10 +295,10 @@ template <typename T>
 void QContiguousCache<T>::free(Data *x)
 {
     if (QTypeInfo<T>::isComplex) {
-        int count = d->count;
+        int oldcount = d->count;
         T * i = d->array + d->start;
         T * e = d->array + d->alloc;
-        while (count--) {
+        while (oldcount--) {
             i->~T();
             i++;
             if (i == e)
diff --git a/src/corelib/tools/qdatetime.cpp b/src/corelib/tools/qdatetime.cpp
index 5dc7693..74fbe0a 100644
--- a/src/corelib/tools/qdatetime.cpp
+++ b/src/corelib/tools/qdatetime.cpp
@@ -49,7 +49,7 @@
 #include "qregexp.h"
 #include "qdebug.h"
 #if defined(Q_OS_WIN32) || defined(Q_OS_WINCE)
-#include <windows.h>
+#include <qt_windows.h>
 #endif
 #ifndef Q_WS_WIN
 #include <locale.h>
@@ -2501,16 +2501,9 @@ QString QDateTime::toString(Qt::DateFormat f) const
         buf += QLatin1Char(' ');
         buf += QString::number(d->date.day());
 #else
-        QString winstr;
-        QT_WA({
-            TCHAR out[255];
-            GetLocaleInfo(LOCALE_USER_DEFAULT, LOCALE_ILDATE, out, 255);
-            winstr = QString::fromUtf16((ushort*)out);
-        } , {
-            char out[255];
-            GetLocaleInfoA(LOCALE_USER_DEFAULT, LOCALE_ILDATE, (char*)&out, 255);
-            winstr = QString::fromLocal8Bit(out);
-        });
+        wchar_t out[255];
+        GetLocaleInfo(LOCALE_USER_DEFAULT, LOCALE_ILDATE, out, 255);
+        QString winstr = QString::fromWCharArray(out);
         switch (winstr.toInt()) {
         case 1:
             buf = d->date.shortDayName(d->date.dayOfWeek());
diff --git a/src/corelib/tools/qeasingcurve.cpp b/src/corelib/tools/qeasingcurve.cpp
index 18a252a..0828c61 100644
--- a/src/corelib/tools/qeasingcurve.cpp
+++ b/src/corelib/tools/qeasingcurve.cpp
@@ -60,8 +60,10 @@
     Easing curves describe a function that controls how the speed of the interpolation
     between 0 and 1 should be. Easing curves allow transitions from
     one value to another to appear more natural than a simple constant speed would allow.
-    The QEasingCurve class is usually used in conjunction with the QAnimation class,
-    but can be used on its own.
+    The QEasingCurve class is usually used in conjunction with the QVariantAnimation and
+    QPropertyAnimation classes but can be used on its own. It is usually used to accelerate
+    the interpolation from zero velocity (ease in) or decelerate to zero velocity (ease out).
+    Ease in and ease out can also be combined in the same easing curve.
 
     To calculate the speed of the interpolation, the easing curve provides the function
     valueForProgress(), where the \a progress argument specifies the progress of the
@@ -80,10 +82,10 @@
     \endcode
     will print the effective progress of the interpolation between 0 and 1.
 
-    When using a QAnimation, the easing curve will be used to control the
+    When using a QPropertyAnimation, the associated easing curve will be used to control the
     progress of the interpolation between startValue and endValue:
     \code
-    QAnimation animation;
+    QPropertyAnimation animation;
     animation.setStartValue(0);
     animation.setEndValue(1000);
     animation.setDuration(1000);
@@ -98,189 +100,191 @@
 
     \value Linear       \inlineimage qeasingcurve-linear.png
                         \br
-                        Easing equation function for a simple linear tweening,
-                        with no easing.
+                        Easing curve for a linear (t) function:
+                        velocity is constant.
     \value InQuad       \inlineimage qeasingcurve-inquad.png
                         \br
-                        Easing equation function for a quadratic (t^2) easing
-                        in: accelerating from zero velocity.
+                        Easing curve for a quadratic (t^2) function:
+                        accelerating from zero velocity.
     \value OutQuad      \inlineimage qeasingcurve-outquad.png
                         \br
-                        Easing equation function for a quadratic (t^2) easing
-                        out: decelerating to zero velocity.
+                        Easing curve for a quadratic (t^2) function:
+                        decelerating to zero velocity.
     \value InOutQuad    \inlineimage qeasingcurve-inoutquad.png
                         \br
-                        Easing equation function for a quadratic (t^2) easing
-                        in/out: acceleration until halfway, then deceleration.
+                        Easing curve for a quadratic (t^2) function:
+                        acceleration until halfway, then deceleration.
     \value OutInQuad    \inlineimage qeasingcurve-outinquad.png
                         \br
-                        Easing equation function for a quadratic (t^2) easing
-                        out/in: deceleration until halfway, then acceleration.
+                        Easing curve for a quadratic (t^2) function:
+                        deceleration until halfway, then acceleration.
     \value InCubic      \inlineimage qeasingcurve-incubic.png
                         \br
-                        Easing equation function for a cubic (t^3) easing
-                        in: accelerating from zero velocity.
+                        Easing curve for a cubic (t^3) function:
+                        accelerating from zero velocity.
     \value OutCubic     \inlineimage qeasingcurve-outcubic.png
                         \br
-                        Easing equation function for a cubic (t^3) easing
-                        out: decelerating from zero velocity.
+                        Easing curve for a cubic (t^3) function:
+                        decelerating from zero velocity.
     \value InOutCubic   \inlineimage qeasingcurve-inoutcubic.png
                         \br
-                        Easing equation function for a cubic (t^3) easing
-                        in/out: acceleration until halfway, then deceleration.
+                        Easing curve for a cubic (t^3) function:
+                        acceleration until halfway, then deceleration.
     \value OutInCubic   \inlineimage qeasingcurve-outincubic.png
                         \br
-                        Easing equation function for a cubic (t^3) easing
-                        out/in: deceleration until halfway, then acceleration.
+                        Easing curve for a cubic (t^3) function:
+                        deceleration until halfway, then acceleration.
     \value InQuart      \inlineimage qeasingcurve-inquart.png
                         \br
-                        Easing equation function for a quartic (t^4) easing
-                        in: accelerating from zero velocity.
+                        Easing curve for a quartic (t^4) function:
+                        accelerating from zero velocity.
     \value OutQuart     \inlineimage qeasingcurve-outquart.png
                         \br
-                        Easing equation function for a quartic (t^4) easing
-                        out: decelerating from zero velocity.
+                        Easing curve for a cubic (t^4) function:
+                        decelerating from zero velocity.
     \value InOutQuart   \inlineimage qeasingcurve-inoutquart.png
                         \br
-                        Easing equation function for a quartic (t^4) easing
-                        in/out: acceleration until halfway, then deceleration.
+                        Easing curve for a cubic (t^4) function:
+                        acceleration until halfway, then deceleration.
     \value OutInQuart   \inlineimage qeasingcurve-outinquart.png
                         \br
-                        Easing equation function for a quartic (t^4) easing
-                        out/in: deceleration until halfway, then acceleration.
+                        Easing curve for a cubic (t^4) function:
+                        deceleration until halfway, then acceleration.
     \value InQuint      \inlineimage qeasingcurve-inquint.png
                         \br
-                        Easing equation function for a quintic (t^5) easing
+                        Easing curve for a quintic (t^5) easing
                         in: accelerating from zero velocity.
     \value OutQuint     \inlineimage qeasingcurve-outquint.png
                         \br
-                        Easing equation function for a quintic (t^5) easing
-                        out: decelerating from zero velocity.
+                        Easing curve for a cubic (t^5) function:
+                        decelerating from zero velocity.
     \value InOutQuint   \inlineimage qeasingcurve-inoutquint.png
                         \br
-                        Easing equation function for a quintic (t^5) easing
-                        in/out: acceleration until halfway, then deceleration.
+                        Easing curve for a cubic (t^5) function:
+                        acceleration until halfway, then deceleration.
     \value OutInQuint   \inlineimage qeasingcurve-outinquint.png
                         \br
-                        Easing equation function for a quintic (t^5) easing
-                        out/in: deceleration until halfway, then acceleration.
+                        Easing curve for a cubic (t^5) function:
+                        deceleration until halfway, then acceleration.
     \value InSine       \inlineimage qeasingcurve-insine.png
                         \br
-                        Easing equation function for a sinusoidal (sin(t)) easing
-                        in: accelerating from zero velocity.
+                        Easing curve for a sinusoidal (sin(t)) function:
+                        accelerating from zero velocity.
     \value OutSine      \inlineimage qeasingcurve-outsine.png
                         \br
-                        Easing equation function for a sinusoidal (sin(t)) easing
-                        out: decelerating from zero velocity.
+                        Easing curve for a sinusoidal (sin(t)) function:
+                        decelerating from zero velocity.
     \value InOutSine    \inlineimage qeasingcurve-inoutsine.png
                         \br
-                        Easing equation function for a sinusoidal (sin(t)) easing
-                        in/out: acceleration until halfway, then deceleration.
+                        Easing curve for a sinusoidal (sin(t)) function:
+                        acceleration until halfway, then deceleration.
     \value OutInSine    \inlineimage qeasingcurve-outinsine.png
                         \br
-                        Easing equation function for a sinusoidal (sin(t)) easing
-                        out/in: deceleration until halfway, then acceleration.
+                        Easing curve for a sinusoidal (sin(t)) function:
+                        deceleration until halfway, then acceleration.
     \value InExpo       \inlineimage qeasingcurve-inexpo.png
                         \br
-                        Easing equation function for an exponential (2^t) easing
-                        in: accelerating from zero velocity.
+                        Easing curve for an exponential (2^t) function:
+                        accelerating from zero velocity.
     \value OutExpo      \inlineimage qeasingcurve-outexpo.png
                         \br
-                        Easing equation function for an exponential (2^t) easing
-                        out: decelerating from zero velocity.
+                        Easing curve for an exponential (2^t) function:
+                        decelerating from zero velocity.
     \value InOutExpo    \inlineimage qeasingcurve-inoutexpo.png
                         \br
-                        Easing equation function for an exponential (2^t) easing
-                        in/out: acceleration until halfway, then deceleration.
+                        Easing curve for an exponential (2^t) function:
+                        acceleration until halfway, then deceleration.
     \value OutInExpo    \inlineimage qeasingcurve-outinexpo.png
                         \br
-                        Easing equation function for an exponential (2^t) easing
-                        out/in: deceleration until halfway, then acceleration.
+                        Easing curve for an exponential (2^t) function:
+                        deceleration until halfway, then acceleration.
     \value InCirc       \inlineimage qeasingcurve-incirc.png
                         \br
-                        Easing equation function for a circular (sqrt(1-t^2)) easing
-                        in: accelerating from zero velocity.
+                        Easing curve for a circular (sqrt(1-t^2)) function:
+                        accelerating from zero velocity.
     \value OutCirc      \inlineimage qeasingcurve-outcirc.png
                         \br
-                        Easing equation function for a circular (sqrt(1-t^2)) easing
-                        out: decelerating from zero velocity.
+                        Easing curve for a circular (sqrt(1-t^2)) function:
+                        decelerating from zero velocity.
     \value InOutCirc    \inlineimage qeasingcurve-inoutcirc.png
                         \br
-                        Easing equation function for a circular (sqrt(1-t^2)) easing
-                        in/out: acceleration until halfway, then deceleration.
+                        Easing curve for a circular (sqrt(1-t^2)) function:
+                        acceleration until halfway, then deceleration.
     \value OutInCirc    \inlineimage qeasingcurve-outincirc.png
                         \br
-                        Easing equation function for a circular (sqrt(1-t^2)) easing
-                        out/in: deceleration until halfway, then acceleration.
+                        Easing curve for a circular (sqrt(1-t^2)) function:
+                        deceleration until halfway, then acceleration.
     \value InElastic    \inlineimage qeasingcurve-inelastic.png
                         \br
-                        Easing equation function for an elastic
-                        (exponentially decaying sine wave) easing in:
+                        Easing curve for an elastic
+                        (exponentially decaying sine wave) function:
                         accelerating from zero velocity.  The peak amplitude
                         can be set with the \e amplitude parameter, and the
                         period of decay by the \e period parameter.
     \value OutElastic   \inlineimage qeasingcurve-outelastic.png
                         \br
-                        Easing equation function for an elastic
-                        (exponentially decaying sine wave) easing out:
+                        Easing curve for an elastic
+                        (exponentially decaying sine wave) function:
                         decelerating from zero velocity.  The peak amplitude
                         can be set with the \e amplitude parameter, and the
                         period of decay by the \e period parameter.
     \value InOutElastic \inlineimage qeasingcurve-inoutelastic.png
                         \br
-                        Easing equation function for an elastic
-                        (exponentially decaying sine wave) easing in/out:
+                        Easing curve for an elastic
+                        (exponentially decaying sine wave) function:
                         acceleration until halfway, then deceleration.
     \value OutInElastic \inlineimage qeasingcurve-outinelastic.png
                         \br
-                        Easing equation function for an elastic
-                        (exponentially decaying sine wave) easing out/in:
+                        Easing curve for an elastic
+                        (exponentially decaying sine wave) function:
                         deceleration until halfway, then acceleration.
     \value InBack       \inlineimage qeasingcurve-inback.png
                         \br
-                        Easing equation function for a back (overshooting
-                        cubic easing: (s+1)*t^3 - s*t^2) easing in:
+                        Easing curve for a back (overshooting
+                        cubic function: (s+1)*t^3 - s*t^2) easing in:
                         accelerating from zero velocity.
     \value OutBack      \inlineimage qeasingcurve-outback.png
                         \br
-                        Easing equation function for a back (overshooting
-                        cubic easing: (s+1)*t^3 - s*t^2) easing out:
-                        decelerating from zero velocity.
+                        Easing curve for a back (overshooting
+                        cubic function: (s+1)*t^3 - s*t^2) easing out:
+                        decelerating to zero velocity.
     \value InOutBack    \inlineimage qeasingcurve-inoutback.png
                         \br
-                        Easing equation function for a back (overshooting
-                        cubic easing: (s+1)*t^3 - s*t^2) easing in/out:
+                        Easing curve for a back (overshooting
+                        cubic function: (s+1)*t^3 - s*t^2) easing in/out:
                         acceleration until halfway, then deceleration.
     \value OutInBack    \inlineimage qeasingcurve-outinback.png
                         \br
-                        Easing equation function for a back (overshooting
+                        Easing curve for a back (overshooting
                         cubic easing: (s+1)*t^3 - s*t^2) easing out/in:
                         deceleration until halfway, then acceleration.
     \value InBounce     \inlineimage qeasingcurve-inbounce.png
                         \br
-                        Easing equation function for a bounce (exponentially
-                        decaying parabolic bounce) easing in: accelerating
+                        Easing curve for a bounce (exponentially
+                        decaying parabolic bounce) function: accelerating
                         from zero velocity.
     \value OutBounce    \inlineimage qeasingcurve-outbounce.png
                         \br
-                        Easing equation function for a bounce (exponentially
-                        decaying parabolic bounce) easing out: decelerating
+                        Easing curve for a bounce (exponentially
+                        decaying parabolic bounce) function: decelerating
                         from zero velocity.
     \value InOutBounce  \inlineimage qeasingcurve-inoutbounce.png
                         \br
-                        Easing equation function for a bounce (exponentially
-                        decaying parabolic bounce) easing in/out:
+                        Easing curve for a bounce (exponentially
+                        decaying parabolic bounce) function easing in/out:
                         acceleration until halfway, then deceleration.
     \value OutInBounce  \inlineimage qeasingcurve-outinbounce.png
                         \br
-                        Easing equation function for a bounce (exponentially
-                        decaying parabolic bounce) easing out/in:
+                        Easing curve for a bounce (exponentially
+                        decaying parabolic bounce) function easing out/in:
                         deceleration until halfway, then acceleration.
     \omitvalue InCurve
     \omitvalue OutCurve
     \omitvalue SineCurve
     \omitvalue CosineCurve
-    \value Custom       This is returned if the user have specified a custom curve type with setCustomType(). Note that you cannot call setType() with this value, but type() can return it.
+    \value Custom       This is returned if the user specified a custom curve type with
+                        setCustomType(). Note that you cannot call setType() with this value,
+                        but type() can return it.
     \omitvalue NCurveTypes
 */
 
diff --git a/src/corelib/tools/qlocale.cpp b/src/corelib/tools/qlocale.cpp
index 17634c1..a7cc95b 100644
--- a/src/corelib/tools/qlocale.cpp
+++ b/src/corelib/tools/qlocale.cpp
@@ -393,15 +393,8 @@ static QString winIso3116CtryName(LCID id = LOCALE_USER_DEFAULT);
 
 static QString getWinLocaleInfo(LCTYPE type)
 {
-    int cnt = 0;
-
     LCID id = GetUserDefaultLCID();
-
-    QT_WA({
-        cnt = GetLocaleInfoW(id, type, 0, 0)*2;
-    } , {
-        cnt = GetLocaleInfoA(id, type, 0, 0);
-    });
+    int cnt = GetLocaleInfo(id, type, 0, 0) * 2;
 
     if (cnt == 0) {
         qWarning("QLocale: empty windows locale info (%d)", (int)type);
@@ -410,27 +403,14 @@ static QString getWinLocaleInfo(LCTYPE type)
 
     QByteArray buff(cnt, 0);
 
-    QT_WA({
-        cnt = GetLocaleInfoW(id, type,
-                                reinterpret_cast<wchar_t*>(buff.data()),
-                                buff.size()/2);
-    } , {
-        cnt = GetLocaleInfoA(id, type,
-                                buff.data(), buff.size());
-    });
+    cnt = GetLocaleInfo(id, type, reinterpret_cast<wchar_t*>(buff.data()), buff.size() / 2);
 
     if (cnt == 0) {
         qWarning("QLocale: empty windows locale info (%d)", (int)type);
         return QString();
     }
 
-    QString result;
-    QT_WA({
-        result = QString::fromUtf16(reinterpret_cast<ushort*>(buff.data()));
-    } , {
-        result = QString::fromLocal8Bit(buff.data());
-    });
-    return result;
+    return QString::fromWCharArray(reinterpret_cast<const wchar_t *>(buff.data()));
 }
 
 QByteArray getWinLocaleName(LCID id = LOCALE_USER_DEFAULT)
@@ -440,8 +420,8 @@ QByteArray getWinLocaleName(LCID id = LOCALE_USER_DEFAULT)
         result = envVarLocale();
         QChar lang[3];
         QChar cntry[2];
-        if ( result == "C" || !result.isEmpty()
-                && splitLocaleName(QString::fromLocal8Bit(result), lang, cntry) ) {
+        if ( result == "C" || (!result.isEmpty()
+                && splitLocaleName(QString::fromLocal8Bit(result), lang, cntry)) ) {
             long id = 0;
             bool ok = false;
             id = qstrtoll(result.data(), 0, 0, &ok);
@@ -452,20 +432,19 @@ QByteArray getWinLocaleName(LCID id = LOCALE_USER_DEFAULT)
         }
     }
 
-    if (QSysInfo::WindowsVersion == QSysInfo::WV_95
-        || (QSysInfo::WindowsVersion & QSysInfo::WV_CE_based)) {
-        result = winLangCodeToIsoName(id != LOCALE_USER_DEFAULT ? id : GetUserDefaultLCID());
-    } else {
-        if (id == LOCALE_USER_DEFAULT)
-            id = GetUserDefaultLCID();
-        QString resultuage = winIso639LangName(id);
-        QString country = winIso3116CtryName(id);
-        result = resultuage.toLatin1();
-        if (!country.isEmpty()) {
-            result += '_';
-            result += country.toLatin1();
-        }
+#if defined(Q_OS_WINCE)
+    result = winLangCodeToIsoName(id != LOCALE_USER_DEFAULT ? id : GetUserDefaultLCID());
+#else
+    if (id == LOCALE_USER_DEFAULT)
+        id = GetUserDefaultLCID();
+    QString resultuage = winIso639LangName(id);
+    QString country = winIso3116CtryName(id);
+    result = resultuage.toLatin1();
+    if (!country.isEmpty()) {
+        result += '_';
+        result += country.toLatin1();
     }
+#endif
 
     return result;
 }
@@ -551,15 +530,9 @@ static QString winDateToString(const QDate &date, DWORD flags)
 
     LCID id = GetUserDefaultLCID();
 
-    QT_WA({
-        TCHAR buf[255];
-        if (GetDateFormatW(id, flags, &st, 0, buf, 255))
-            return QString::fromUtf16((ushort*)buf);
-    } , {
-        char buf[255];
-        if (GetDateFormatA(id, flags, &st, 0, (char*)&buf, 255))
-            return QString::fromLocal8Bit(buf);
-    });
+    wchar_t buf[255];
+    if (GetDateFormat(id, flags, &st, 0, buf, 255))
+        return QString::fromWCharArray(buf);
 
     return QString();
 }
@@ -576,15 +549,9 @@ static QString winTimeToString(const QTime &time)
     DWORD flags = 0;
     LCID id = GetUserDefaultLCID();
 
-    QT_WA({
-        TCHAR buf[255];
-        if (GetTimeFormatW(id, flags, &st, 0, buf, 255))
-            return QString::fromUtf16((ushort*)buf);
-    } , {
-        char buf[255];
-        if (GetTimeFormatA(id, flags, &st, 0, (char*)&buf, 255))
-            return QString::fromLocal8Bit(buf);
-    });
+    wchar_t buf[255];
+    if (GetTimeFormat(id, flags, &st, 0, buf, 255))
+        return QString::fromWCharArray(buf);
 
     return QString();
 }
@@ -633,12 +600,10 @@ static QString winMonthName(int month, bool short_format)
 static QLocale::MeasurementSystem winSystemMeasurementSystem()
 {
     LCID id = GetUserDefaultLCID();
-    TCHAR output[2];
+    wchar_t output[2];
 
     if (GetLocaleInfo(id, LOCALE_IMEASURE, output, 2)) {
-        QString iMeasure = QT_WA_INLINE(
-                QString::fromUtf16(reinterpret_cast<ushort*>(output)),
-                QString::fromLocal8Bit(reinterpret_cast<char*>(output)));
+        QString iMeasure = QString::fromWCharArray(output);
         if (iMeasure == QLatin1String("1")) {
             return QLocale::ImperialSystem;
         }
@@ -650,12 +615,10 @@ static QLocale::MeasurementSystem winSystemMeasurementSystem()
 static QString winSystemAMText()
 {
     LCID id = GetUserDefaultLCID();
-    TCHAR output[15]; // maximum length including  terminating zero character for Win2003+
+    wchar_t output[15]; // maximum length including  terminating zero character for Win2003+
 
     if (GetLocaleInfo(id, LOCALE_S1159, output, 15)) {
-        return QT_WA_INLINE(
-                QString::fromUtf16(reinterpret_cast<ushort*>(output)),
-                QString::fromLocal8Bit(reinterpret_cast<char*>(output)));
+        return QString::fromWCharArray(output);
     }
 
     return QString();
@@ -664,12 +627,10 @@ static QString winSystemAMText()
 static QString winSystemPMText()
 {
     LCID id = GetUserDefaultLCID();
-    TCHAR output[15]; // maximum length including  terminating zero character for Win2003+
+    wchar_t output[15]; // maximum length including  terminating zero character for Win2003+
 
     if (GetLocaleInfo(id, LOCALE_S2359, output, 15)) {
-        return QT_WA_INLINE(
-                QString::fromUtf16(reinterpret_cast<ushort*>(output)),
-                QString::fromLocal8Bit(reinterpret_cast<char*>(output)));
+        return QString::fromWCharArray(output);
     }
 
     return QString();
@@ -773,9 +734,6 @@ QVariant QSystemLocale::query(QueryType type, QVariant in = QVariant()) const
     return QVariant();
 }
 
-/* Win95 doesn't have a function to return the ISO lang/country name of the user's locale.
-   Instead it can return a "Windows code". This maps windows codes to ISO country names. */
-
 struct WindowsToISOListElt {
     ushort windows_code;
     char iso_name[6];
@@ -931,15 +889,9 @@ static QString winIso639LangName(LCID id)
     // Windows returns the wrong ISO639 for some languages, we need to detect them here using
     // the language code
     QString lang_code;
-    QT_WA({
-        TCHAR out[256];
-        if (GetLocaleInfoW(id, LOCALE_ILANGUAGE, out, 255))
-            lang_code = QString::fromUtf16((ushort*)out);
-    } , {
-        char out[256];
-        if (GetLocaleInfoA(id, LOCALE_ILANGUAGE, out, 255))
-            lang_code = QString::fromLocal8Bit(out);
-    });
+    wchar_t out[256];
+    if (GetLocaleInfo(id, LOCALE_ILANGUAGE, out, 255))
+        lang_code = QString::fromWCharArray(out);
 
     if (!lang_code.isEmpty()) {
         const char *endptr;
@@ -961,15 +913,8 @@ static QString winIso639LangName(LCID id)
         return result;
 
     // not one of the problematic languages - do the usual lookup
-    QT_WA({
-        TCHAR out[256];
-        if (GetLocaleInfoW(id, LOCALE_SISO639LANGNAME , out, 255))
-            result = QString::fromUtf16((ushort*)out);
-    } , {
-        char out[256];
-        if (GetLocaleInfoA(id, LOCALE_SISO639LANGNAME, out, 255))
-            result = QString::fromLocal8Bit(out);
-    });
+    if (GetLocaleInfo(id, LOCALE_SISO639LANGNAME , out, 255))
+        result = QString::fromWCharArray(out);
 
     return result;
 }
@@ -978,15 +923,9 @@ static QString winIso3116CtryName(LCID id)
 {
     QString result;
 
-    QT_WA({
-        TCHAR out[256];
-        if (GetLocaleInfoW(id, LOCALE_SISO3166CTRYNAME, out, 255))
-            result = QString::fromUtf16((ushort*)out);
-    } , {
-        char out[256];
-        if (GetLocaleInfoA(id, LOCALE_SISO3166CTRYNAME, out, 255))
-            result = QString::fromLocal8Bit(out);
-    });
+    wchar_t out[256];
+    if (GetLocaleInfo(id, LOCALE_SISO3166CTRYNAME, out, 255))
+        result = QString::fromWCharArray(out);
 
     return result;
 }
@@ -2696,7 +2635,7 @@ static QString timeZone()
     DWORD res = GetTimeZoneInformation(&info);
     if (res == TIME_ZONE_ID_UNKNOWN)
         return QString();
-    return QString::fromUtf16(reinterpret_cast<const ushort *> (info.StandardName));
+    return QString::fromWCharArray(info.StandardName);
 #elif defined(Q_OS_WIN)
     _tzset();
 # if defined(_MSC_VER) && _MSC_VER >= 1400
@@ -5368,7 +5307,11 @@ struct p5s_deleter
 {
     ~p5s_deleter()
     {
-        Bfree(p5s);
+        while (p5s) {
+            Bigint *next = p5s->next;
+            Bfree(p5s);
+            p5s = next;
+        }
     }
 };
 
diff --git a/src/corelib/tools/qpoint.cpp b/src/corelib/tools/qpoint.cpp
index 49afdca..af60f52 100644
--- a/src/corelib/tools/qpoint.cpp
+++ b/src/corelib/tools/qpoint.cpp
@@ -444,6 +444,8 @@ QDebug operator<<(QDebug d, const QPointF &p)
 
 
 /*!
+    \since 4.6
+
     Returns the sum of the absolute values of x() and y(),
     traditionally known as the "Manhattan length" of the vector from
     the origin to the point.
diff --git a/src/corelib/tools/qregexp.cpp b/src/corelib/tools/qregexp.cpp
index d7d347f..adca703 100644
--- a/src/corelib/tools/qregexp.cpp
+++ b/src/corelib/tools/qregexp.cpp
@@ -70,6 +70,8 @@ int qFindString(const QChar *haystack, int haystackLen, int from,
 #define RXERR_LEFTDELIM  QT_TRANSLATE_NOOP("QRegExp", "missing left delim")
 #define RXERR_END        QT_TRANSLATE_NOOP("QRegExp", "unexpected end")
 #define RXERR_LIMIT      QT_TRANSLATE_NOOP("QRegExp", "met internal limit")
+#define RXERR_INTERVAL   QT_TRANSLATE_NOOP("QRegExp", "invalid interval")
+#define RXERR_CATEGORY   QT_TRANSLATE_NOOP("QRegExp", "invalid category")
 
 /*
   WARNING! Be sure to read qregexp.tex before modifying this file.
@@ -1116,6 +1118,7 @@ private:
     bool valid; // is the regular expression valid?
     Qt::CaseSensitivity cs; // case sensitive?
     bool greedyQuantifiers; // RegExp2?
+    bool xmlSchemaExtensions;
 #ifndef QT_NO_REGEXP_BACKREF
     int nbrefs; // number of back-references
 #endif
@@ -1193,6 +1196,8 @@ private:
 
     friend class Box;
 
+    void setupCategoriesRangeMap();
+
     /*
       This is the lexical analyzer for regular expressions.
     */
@@ -1232,6 +1237,7 @@ private:
 
     int yyTok; // the last token read
     bool yyMayCapture; // set this to false to disable capturing
+    QHash<QByteArray, QPair<int, int> > categoriesRangeMap; // fast lookup hash for xml schema extensions
 
     friend struct QRegExpMatchState;
 };
@@ -1253,7 +1259,8 @@ struct QRegExpLookahead
 #endif
 
 QRegExpEngine::QRegExpEngine(const QRegExpEngineKey &key)
-    : cs(key.cs), greedyQuantifiers(key.patternSyntax == QRegExp::RegExp2)
+    : cs(key.cs), greedyQuantifiers(key.patternSyntax == QRegExp::RegExp2),
+      xmlSchemaExtensions(false)
 {
     setup();
 
@@ -1268,6 +1275,8 @@ QRegExpEngine::QRegExpEngine(const QRegExpEngineKey &key)
     case QRegExp::FixedString:
         rx = QRegExp::escape(key.pattern);
         break;
+    case QRegExp::W3CXmlSchema11:
+        xmlSchemaExtensions = true;
     default:
         rx = key.pattern;
     }
@@ -1485,9 +1494,8 @@ int QRegExpEngine::anchorAlternation(int a, int b)
         return Anchor_Alternation | (n - 1);
 #endif
 
-    aa.resize(n + 1);
-    aa[n].a = a;
-    aa[n].b = b;
+    QRegExpAnchorAlternation element = {a, b};
+    aa.append(element);
     return Anchor_Alternation | n;
 }
 
@@ -2627,6 +2635,152 @@ void QRegExpEngine::Box::addAnchorsToEngine(const Box &to) const
     }
 }
 
+void QRegExpEngine::setupCategoriesRangeMap()
+{
+   categoriesRangeMap.insert("IsBasicLatin",                           qMakePair(0x0000, 0x007F));
+   categoriesRangeMap.insert("IsLatin-1Supplement",                    qMakePair(0x0080, 0x00FF));
+   categoriesRangeMap.insert("IsLatinExtended-A",                      qMakePair(0x0100, 0x017F));
+   categoriesRangeMap.insert("IsLatinExtended-B",                      qMakePair(0x0180, 0x024F));
+   categoriesRangeMap.insert("IsIPAExtensions",                        qMakePair(0x0250, 0x02AF));
+   categoriesRangeMap.insert("IsSpacingModifierLetters",               qMakePair(0x02B0, 0x02FF));
+   categoriesRangeMap.insert("IsCombiningDiacriticalMarks",            qMakePair(0x0300, 0x036F));
+   categoriesRangeMap.insert("IsGreek",                                qMakePair(0x0370, 0x03FF));
+   categoriesRangeMap.insert("IsCyrillic",                             qMakePair(0x0400, 0x04FF));
+   categoriesRangeMap.insert("IsCyrillicSupplement",                   qMakePair(0x0500, 0x052F));
+   categoriesRangeMap.insert("IsArmenian",                             qMakePair(0x0530, 0x058F));
+   categoriesRangeMap.insert("IsHebrew",                               qMakePair(0x0590, 0x05FF));
+   categoriesRangeMap.insert("IsArabic",                               qMakePair(0x0600, 0x06FF));
+   categoriesRangeMap.insert("IsSyriac",                               qMakePair(0x0700, 0x074F));
+   categoriesRangeMap.insert("IsArabicSupplement",                     qMakePair(0x0750, 0x077F));
+   categoriesRangeMap.insert("IsThaana",                               qMakePair(0x0780, 0x07BF));
+   categoriesRangeMap.insert("IsDevanagari",                           qMakePair(0x0900, 0x097F));
+   categoriesRangeMap.insert("IsBengali",                              qMakePair(0x0980, 0x09FF));
+   categoriesRangeMap.insert("IsGurmukhi",                             qMakePair(0x0A00, 0x0A7F));
+   categoriesRangeMap.insert("IsGujarati",                             qMakePair(0x0A80, 0x0AFF));
+   categoriesRangeMap.insert("IsOriya",                                qMakePair(0x0B00, 0x0B7F));
+   categoriesRangeMap.insert("IsTamil",                                qMakePair(0x0B80, 0x0BFF));
+   categoriesRangeMap.insert("IsTelugu",                               qMakePair(0x0C00, 0x0C7F));
+   categoriesRangeMap.insert("IsKannada",                              qMakePair(0x0C80, 0x0CFF));
+   categoriesRangeMap.insert("IsMalayalam",                            qMakePair(0x0D00, 0x0D7F));
+   categoriesRangeMap.insert("IsSinhala",                              qMakePair(0x0D80, 0x0DFF));
+   categoriesRangeMap.insert("IsThai",                                 qMakePair(0x0E00, 0x0E7F));
+   categoriesRangeMap.insert("IsLao",                                  qMakePair(0x0E80, 0x0EFF));
+   categoriesRangeMap.insert("IsTibetan",                              qMakePair(0x0F00, 0x0FFF));
+   categoriesRangeMap.insert("IsMyanmar",                              qMakePair(0x1000, 0x109F));
+   categoriesRangeMap.insert("IsGeorgian",                             qMakePair(0x10A0, 0x10FF));
+   categoriesRangeMap.insert("IsHangulJamo",                           qMakePair(0x1100, 0x11FF));
+   categoriesRangeMap.insert("IsEthiopic",                             qMakePair(0x1200, 0x137F));
+   categoriesRangeMap.insert("IsEthiopicSupplement",                   qMakePair(0x1380, 0x139F));
+   categoriesRangeMap.insert("IsCherokee",                             qMakePair(0x13A0, 0x13FF));
+   categoriesRangeMap.insert("IsUnifiedCanadianAboriginalSyllabics",   qMakePair(0x1400, 0x167F));
+   categoriesRangeMap.insert("IsOgham",                                qMakePair(0x1680, 0x169F));
+   categoriesRangeMap.insert("IsRunic",                                qMakePair(0x16A0, 0x16FF));
+   categoriesRangeMap.insert("IsTagalog",                              qMakePair(0x1700, 0x171F));
+   categoriesRangeMap.insert("IsHanunoo",                              qMakePair(0x1720, 0x173F));
+   categoriesRangeMap.insert("IsBuhid",                                qMakePair(0x1740, 0x175F));
+   categoriesRangeMap.insert("IsTagbanwa",                             qMakePair(0x1760, 0x177F));
+   categoriesRangeMap.insert("IsKhmer",                                qMakePair(0x1780, 0x17FF));
+   categoriesRangeMap.insert("IsMongolian",                            qMakePair(0x1800, 0x18AF));
+   categoriesRangeMap.insert("IsLimbu",                                qMakePair(0x1900, 0x194F));
+   categoriesRangeMap.insert("IsTaiLe",                                qMakePair(0x1950, 0x197F));
+   categoriesRangeMap.insert("IsNewTaiLue",                            qMakePair(0x1980, 0x19DF));
+   categoriesRangeMap.insert("IsKhmerSymbols",                         qMakePair(0x19E0, 0x19FF));
+   categoriesRangeMap.insert("IsBuginese",                             qMakePair(0x1A00, 0x1A1F));
+   categoriesRangeMap.insert("IsPhoneticExtensions",                   qMakePair(0x1D00, 0x1D7F));
+   categoriesRangeMap.insert("IsPhoneticExtensionsSupplement",         qMakePair(0x1D80, 0x1DBF));
+   categoriesRangeMap.insert("IsCombiningDiacriticalMarksSupplement",  qMakePair(0x1DC0, 0x1DFF));
+   categoriesRangeMap.insert("IsLatinExtendedAdditional",              qMakePair(0x1E00, 0x1EFF));
+   categoriesRangeMap.insert("IsGreekExtended",                        qMakePair(0x1F00, 0x1FFF));
+   categoriesRangeMap.insert("IsGeneralPunctuation",                   qMakePair(0x2000, 0x206F));
+   categoriesRangeMap.insert("IsSuperscriptsandSubscripts",            qMakePair(0x2070, 0x209F));
+   categoriesRangeMap.insert("IsCurrencySymbols",                      qMakePair(0x20A0, 0x20CF));
+   categoriesRangeMap.insert("IsCombiningMarksforSymbols",             qMakePair(0x20D0, 0x20FF));
+   categoriesRangeMap.insert("IsLetterlikeSymbols",                    qMakePair(0x2100, 0x214F));
+   categoriesRangeMap.insert("IsNumberForms",                          qMakePair(0x2150, 0x218F));
+   categoriesRangeMap.insert("IsArrows",                               qMakePair(0x2190, 0x21FF));
+   categoriesRangeMap.insert("IsMathematicalOperators",                qMakePair(0x2200, 0x22FF));
+   categoriesRangeMap.insert("IsMiscellaneousTechnical",               qMakePair(0x2300, 0x23FF));
+   categoriesRangeMap.insert("IsControlPictures",                      qMakePair(0x2400, 0x243F));
+   categoriesRangeMap.insert("IsOpticalCharacterRecognition",          qMakePair(0x2440, 0x245F));
+   categoriesRangeMap.insert("IsEnclosedAlphanumerics",                qMakePair(0x2460, 0x24FF));
+   categoriesRangeMap.insert("IsBoxDrawing",                           qMakePair(0x2500, 0x257F));
+   categoriesRangeMap.insert("IsBlockElements",                        qMakePair(0x2580, 0x259F));
+   categoriesRangeMap.insert("IsGeometricShapes",                      qMakePair(0x25A0, 0x25FF));
+   categoriesRangeMap.insert("IsMiscellaneousSymbols",                 qMakePair(0x2600, 0x26FF));
+   categoriesRangeMap.insert("IsDingbats",                             qMakePair(0x2700, 0x27BF));
+   categoriesRangeMap.insert("IsMiscellaneousMathematicalSymbols-A",   qMakePair(0x27C0, 0x27EF));
+   categoriesRangeMap.insert("IsSupplementalArrows-A",                 qMakePair(0x27F0, 0x27FF));
+   categoriesRangeMap.insert("IsBraillePatterns",                      qMakePair(0x2800, 0x28FF));
+   categoriesRangeMap.insert("IsSupplementalArrows-B",                 qMakePair(0x2900, 0x297F));
+   categoriesRangeMap.insert("IsMiscellaneousMathematicalSymbols-B",   qMakePair(0x2980, 0x29FF));
+   categoriesRangeMap.insert("IsSupplementalMathematicalOperators",    qMakePair(0x2A00, 0x2AFF));
+   categoriesRangeMap.insert("IsMiscellaneousSymbolsandArrows",        qMakePair(0x2B00, 0x2BFF));
+   categoriesRangeMap.insert("IsGlagolitic",                           qMakePair(0x2C00, 0x2C5F));
+   categoriesRangeMap.insert("IsCoptic",                               qMakePair(0x2C80, 0x2CFF));
+   categoriesRangeMap.insert("IsGeorgianSupplement",                   qMakePair(0x2D00, 0x2D2F));
+   categoriesRangeMap.insert("IsTifinagh",                             qMakePair(0x2D30, 0x2D7F));
+   categoriesRangeMap.insert("IsEthiopicExtended",                     qMakePair(0x2D80, 0x2DDF));
+   categoriesRangeMap.insert("IsSupplementalPunctuation",              qMakePair(0x2E00, 0x2E7F));
+   categoriesRangeMap.insert("IsCJKRadicalsSupplement",                qMakePair(0x2E80, 0x2EFF));
+   categoriesRangeMap.insert("IsKangxiRadicals",                       qMakePair(0x2F00, 0x2FDF));
+   categoriesRangeMap.insert("IsIdeographicDescriptionCharacters",     qMakePair(0x2FF0, 0x2FFF));
+   categoriesRangeMap.insert("IsCJKSymbolsandPunctuation",             qMakePair(0x3000, 0x303F));
+   categoriesRangeMap.insert("IsHiragana",                             qMakePair(0x3040, 0x309F));
+   categoriesRangeMap.insert("IsKatakana",                             qMakePair(0x30A0, 0x30FF));
+   categoriesRangeMap.insert("IsBopomofo",                             qMakePair(0x3100, 0x312F));
+   categoriesRangeMap.insert("IsHangulCompatibilityJamo",              qMakePair(0x3130, 0x318F));
+   categoriesRangeMap.insert("IsKanbun",                               qMakePair(0x3190, 0x319F));
+   categoriesRangeMap.insert("IsBopomofoExtended",                     qMakePair(0x31A0, 0x31BF));
+   categoriesRangeMap.insert("IsCJKStrokes",                           qMakePair(0x31C0, 0x31EF));
+   categoriesRangeMap.insert("IsKatakanaPhoneticExtensions",           qMakePair(0x31F0, 0x31FF));
+   categoriesRangeMap.insert("IsEnclosedCJKLettersandMonths",          qMakePair(0x3200, 0x32FF));
+   categoriesRangeMap.insert("IsCJKCompatibility",                     qMakePair(0x3300, 0x33FF));
+   categoriesRangeMap.insert("IsCJKUnifiedIdeographsExtensionA",       qMakePair(0x3400, 0x4DB5));
+   categoriesRangeMap.insert("IsYijingHexagramSymbols",                qMakePair(0x4DC0, 0x4DFF));
+   categoriesRangeMap.insert("IsCJKUnifiedIdeographs",                 qMakePair(0x4E00, 0x9FFF));
+   categoriesRangeMap.insert("IsYiSyllables",                          qMakePair(0xA000, 0xA48F));
+   categoriesRangeMap.insert("IsYiRadicals",                           qMakePair(0xA490, 0xA4CF));
+   categoriesRangeMap.insert("IsModifierToneLetters",                  qMakePair(0xA700, 0xA71F));
+   categoriesRangeMap.insert("IsSylotiNagri",                          qMakePair(0xA800, 0xA82F));
+   categoriesRangeMap.insert("IsHangulSyllables",                      qMakePair(0xAC00, 0xD7A3));
+   categoriesRangeMap.insert("IsPrivateUse",                           qMakePair(0xE000, 0xF8FF));
+   categoriesRangeMap.insert("IsCJKCompatibilityIdeographs",           qMakePair(0xF900, 0xFAFF));
+   categoriesRangeMap.insert("IsAlphabeticPresentationForms",          qMakePair(0xFB00, 0xFB4F));
+   categoriesRangeMap.insert("IsArabicPresentationForms-A",            qMakePair(0xFB50, 0xFDFF));
+   categoriesRangeMap.insert("IsVariationSelectors",                   qMakePair(0xFE00, 0xFE0F));
+   categoriesRangeMap.insert("IsVerticalForms",                        qMakePair(0xFE10, 0xFE1F));
+   categoriesRangeMap.insert("IsCombiningHalfMarks",                   qMakePair(0xFE20, 0xFE2F));
+   categoriesRangeMap.insert("IsCJKCompatibilityForms",                qMakePair(0xFE30, 0xFE4F));
+   categoriesRangeMap.insert("IsSmallFormVariants",                    qMakePair(0xFE50, 0xFE6F));
+   categoriesRangeMap.insert("IsArabicPresentationForms-B",            qMakePair(0xFE70, 0xFEFF));
+   categoriesRangeMap.insert("IsHalfwidthandFullwidthForms",           qMakePair(0xFF00, 0xFFEF));
+   categoriesRangeMap.insert("IsSpecials",                             qMakePair(0xFFF0, 0xFFFF));
+   categoriesRangeMap.insert("IsLinearBSyllabary",                     qMakePair(0x10000, 0x1007F));
+   categoriesRangeMap.insert("IsLinearBIdeograms",                     qMakePair(0x10080, 0x100FF));
+   categoriesRangeMap.insert("IsAegeanNumbers",                        qMakePair(0x10100, 0x1013F));
+   categoriesRangeMap.insert("IsAncientGreekNumbers",                  qMakePair(0x10140, 0x1018F));
+   categoriesRangeMap.insert("IsOldItalic",                            qMakePair(0x10300, 0x1032F));
+   categoriesRangeMap.insert("IsGothic",                               qMakePair(0x10330, 0x1034F));
+   categoriesRangeMap.insert("IsUgaritic",                             qMakePair(0x10380, 0x1039F));
+   categoriesRangeMap.insert("IsOldPersian",                           qMakePair(0x103A0, 0x103DF));
+   categoriesRangeMap.insert("IsDeseret",                              qMakePair(0x10400, 0x1044F));
+   categoriesRangeMap.insert("IsShavian",                              qMakePair(0x10450, 0x1047F));
+   categoriesRangeMap.insert("IsOsmanya",                              qMakePair(0x10480, 0x104AF));
+   categoriesRangeMap.insert("IsCypriotSyllabary",                     qMakePair(0x10800, 0x1083F));
+   categoriesRangeMap.insert("IsKharoshthi",                           qMakePair(0x10A00, 0x10A5F));
+   categoriesRangeMap.insert("IsByzantineMusicalSymbols",              qMakePair(0x1D000, 0x1D0FF));
+   categoriesRangeMap.insert("IsMusicalSymbols",                       qMakePair(0x1D100, 0x1D1FF));
+   categoriesRangeMap.insert("IsAncientGreekMusicalNotation",          qMakePair(0x1D200, 0x1D24F));
+   categoriesRangeMap.insert("IsTaiXuanJingSymbols",                   qMakePair(0x1D300, 0x1D35F));
+   categoriesRangeMap.insert("IsMathematicalAlphanumericSymbols",      qMakePair(0x1D400, 0x1D7FF));
+   categoriesRangeMap.insert("IsCJKUnifiedIdeographsExtensionB",       qMakePair(0x20000, 0x2A6DF));
+   categoriesRangeMap.insert("IsCJKCompatibilityIdeographsSupplement", qMakePair(0x2F800, 0x2FA1F));
+   categoriesRangeMap.insert("IsTags",                                 qMakePair(0xE0000, 0xE007F));
+   categoriesRangeMap.insert("IsVariationSelectorsSupplement",         qMakePair(0xE0100, 0xE01EF));
+   categoriesRangeMap.insert("IsSupplementaryPrivateUseArea-A",        qMakePair(0xF0000, 0xFFFFF));
+   categoriesRangeMap.insert("IsSupplementaryPrivateUseArea-B",        qMakePair(0x100000, 0x10FFFF));
+}
+
 int QRegExpEngine::getChar()
 {
     return (yyPos == yyLen) ? EOS : yyIn[yyPos++].unicode();
@@ -2719,6 +2873,177 @@ int QRegExpEngine::getEscape()
         yyCharClass->addCategories(0x000f807e);
         yyCharClass->addSingleton(0x005f); // '_'
         return Tok_CharClass;
+    case 'I':
+        if (xmlSchemaExtensions) {
+            yyCharClass->setNegative(!yyCharClass->negative());
+            // fall through
+        }
+    case 'i':
+        if (xmlSchemaExtensions) {
+            yyCharClass->addCategories(0x000f807e);
+            yyCharClass->addSingleton(0x003a); // ':'
+            yyCharClass->addSingleton(0x005f); // '_'
+            yyCharClass->addRange(0x0041, 0x005a); // [A-Z]
+            yyCharClass->addRange(0x0061, 0x007a); // [a-z]
+            yyCharClass->addRange(0xc0, 0xd6);
+            yyCharClass->addRange(0xd8, 0xf6);
+            yyCharClass->addRange(0xf8, 0x2ff);
+            yyCharClass->addRange(0x370, 0x37d);
+            yyCharClass->addRange(0x37f, 0x1fff);
+            yyCharClass->addRange(0x200c, 0x200d);
+            yyCharClass->addRange(0x2070, 0x218f);
+            yyCharClass->addRange(0x2c00, 0x2fef);
+            yyCharClass->addRange(0x3001, 0xd7ff);
+            yyCharClass->addRange(0xf900, 0xfdcf);
+            yyCharClass->addRange(0xfdf0, 0xfffd);
+            yyCharClass->addRange((ushort)0x10000, (ushort)0xeffff);
+        }
+        return Tok_CharClass;
+    case 'C':
+        if (xmlSchemaExtensions) {
+            yyCharClass->setNegative(!yyCharClass->negative());
+            // fall through
+        }
+    case 'c':
+        if (xmlSchemaExtensions) {
+            yyCharClass->addCategories(0x000f807e);
+            yyCharClass->addSingleton(0x002d); // '-'
+            yyCharClass->addSingleton(0x002e); // '.'
+            yyCharClass->addSingleton(0x003a); // ':'
+            yyCharClass->addSingleton(0x005f); // '_'
+            yyCharClass->addSingleton(0xb7);
+            yyCharClass->addRange(0x0030, 0x0039); // [0-9]
+            yyCharClass->addRange(0x0041, 0x005a); // [A-Z]
+            yyCharClass->addRange(0x0061, 0x007a); // [a-z]
+            yyCharClass->addRange(0xc0, 0xd6);
+            yyCharClass->addRange(0xd8, 0xf6);
+            yyCharClass->addRange(0xf8, 0x2ff);
+            yyCharClass->addRange(0x370, 0x37d);
+            yyCharClass->addRange(0x37f, 0x1fff);
+            yyCharClass->addRange(0x200c, 0x200d);
+            yyCharClass->addRange(0x2070, 0x218f);
+            yyCharClass->addRange(0x2c00, 0x2fef);
+            yyCharClass->addRange(0x3001, 0xd7ff);
+            yyCharClass->addRange(0xf900, 0xfdcf);
+            yyCharClass->addRange(0xfdf0, 0xfffd);
+            yyCharClass->addRange((ushort)0x10000, (ushort)0xeffff);
+            yyCharClass->addRange(0x0300, 0x036f);
+            yyCharClass->addRange(0x203f, 0x2040);
+        }
+        return Tok_CharClass;
+    case 'P':
+        if (xmlSchemaExtensions) {
+            yyCharClass->setNegative(!yyCharClass->negative());
+            // fall through
+        }
+    case 'p':
+        if (xmlSchemaExtensions) {
+            if (yyCh != '{') {
+                error(RXERR_CHARCLASS);
+                return Tok_CharClass;
+            }
+
+            QByteArray category;
+            yyCh = getChar();
+            while (yyCh != '}') {
+                if (yyCh == EOS) {
+                    error(RXERR_END);
+                    return Tok_CharClass;
+                }
+                category.append(yyCh);
+                yyCh = getChar();
+            }
+            yyCh = getChar(); // skip closing '}'
+
+            if (category == "M") {
+                yyCharClass->addCategories(0x0000000e);
+            } else if (category == "Mn") {
+                yyCharClass->addCategories(0x00000002);
+            } else if (category == "Mc") {
+                yyCharClass->addCategories(0x00000004);
+            } else if (category == "Me") {
+                yyCharClass->addCategories(0x00000008);
+            } else if (category == "N") {
+                yyCharClass->addCategories(0x00000070);
+            } else if (category == "Nd") {
+                yyCharClass->addCategories(0x00000010);
+            } else if (category == "Nl") {
+                yyCharClass->addCategories(0x00000020);
+            } else if (category == "No") {
+                yyCharClass->addCategories(0x00000040);
+            } else if (category == "Z") {
+                yyCharClass->addCategories(0x00000380);
+            } else if (category == "Zs") {
+                yyCharClass->addCategories(0x00000080);
+            } else if (category == "Zl") {
+                yyCharClass->addCategories(0x00000100);
+            } else if (category == "Zp") {
+                yyCharClass->addCategories(0x00000200);
+            } else if (category == "C") {
+                yyCharClass->addCategories(0x00006c00);
+            } else if (category == "Cc") {
+                yyCharClass->addCategories(0x00000400);
+            } else if (category == "Cf") {
+                yyCharClass->addCategories(0x00000800);
+            } else if (category == "Cs") {
+                yyCharClass->addCategories(0x00001000);
+            } else if (category == "Co") {
+                yyCharClass->addCategories(0x00002000);
+            } else if (category == "Cn") {
+                yyCharClass->addCategories(0x00004000);
+            } else if (category == "L") {
+                yyCharClass->addCategories(0x000f8000);
+            } else if (category == "Lu") {
+                yyCharClass->addCategories(0x00008000);
+            } else if (category == "Ll") {
+                yyCharClass->addCategories(0x00010000);
+            } else if (category == "Lt") {
+                yyCharClass->addCategories(0x00020000);
+            } else if (category == "Lm") {
+                yyCharClass->addCategories(0x00040000);
+            } else if (category == "Lo") {
+                yyCharClass->addCategories(0x00080000);
+            } else if (category == "P") {
+                yyCharClass->addCategories(0x4f580780);
+            } else if (category == "Pc") {
+                yyCharClass->addCategories(0x00100000);
+            } else if (category == "Pd") {
+                yyCharClass->addCategories(0x00200000);
+            } else if (category == "Ps") {
+                yyCharClass->addCategories(0x00400000);
+            } else if (category == "Pe") {
+                yyCharClass->addCategories(0x00800000);
+            } else if (category == "Pi") {
+                yyCharClass->addCategories(0x01000000);
+            } else if (category == "Pf") {
+                yyCharClass->addCategories(0x02000000);
+            } else if (category == "Po") {
+                yyCharClass->addCategories(0x04000000);
+            } else if (category == "S") {
+                yyCharClass->addCategories(0x78000000);
+            } else if (category == "Sm") {
+                yyCharClass->addCategories(0x08000000);
+            } else if (category == "Sc") {
+                yyCharClass->addCategories(0x10000000);
+            } else if (category == "Sk") {
+                yyCharClass->addCategories(0x20000000);
+            } else if (category == "So") {
+                yyCharClass->addCategories(0x40000000);
+            } else if (category.startsWith("Is")) {
+                if (categoriesRangeMap.isEmpty())
+                    setupCategoriesRangeMap();
+
+                if (categoriesRangeMap.contains(category)) {
+                    const QPair<int, int> range = categoriesRangeMap.value(category);
+                    yyCharClass->addRange(range.first, range.second);
+                } else {
+                    error(RXERR_CATEGORY);
+                }
+            } else {
+                error(RXERR_CATEGORY);
+            }
+        }
+        return Tok_CharClass;
 #endif
 #ifndef QT_NO_REGEXP_ESCAPE
     case 'x':
@@ -2940,7 +3265,7 @@ int QRegExpEngine::getToken()
             yyMaxRep = getRep(InftyRep);
         }
         if (yyMaxRep < yyMinRep)
-            qSwap(yyMinRep, yyMaxRep);
+            error(RXERR_INTERVAL);
         if (yyCh != '}')
             error(RXERR_REPETITION);
         yyCh = getChar();
@@ -3307,7 +3632,7 @@ static void prepareEngine_helper(QRegExpPrivate *priv)
 {
     bool initMatchState = !priv->eng;
 #if !defined(QT_NO_REGEXP_OPTIM)
-    if (!priv->eng) {
+    if (!priv->eng && globalEngineCache()) {
         QMutexLocker locker(mutex());
         priv->eng = globalEngineCache()->take(priv->engineKey);
         if (priv->eng != 0)
@@ -3385,6 +3710,9 @@ static void invalidateEngine(QRegExpPrivate *priv)
     equivalent to using the RegExp pattern on a string in
     which all metacharacters are escaped using escape().
 
+    \value W3CXmlSchema11 The pattern is a regular expression as
+    defined by the W3C XML Schema 1.1 specification.
+
     \sa setPatternSyntax()
 */
 
diff --git a/src/corelib/tools/qregexp.h b/src/corelib/tools/qregexp.h
index 057eec2..16682a3 100644
--- a/src/corelib/tools/qregexp.h
+++ b/src/corelib/tools/qregexp.h
@@ -61,7 +61,7 @@ class QStringList;
 class Q_CORE_EXPORT QRegExp
 {
 public:
-    enum PatternSyntax { RegExp, Wildcard, FixedString, RegExp2 };
+    enum PatternSyntax { RegExp, Wildcard, FixedString, RegExp2, W3CXmlSchema11 };
     enum CaretMode { CaretAtZero, CaretAtOffset, CaretWontMatch };
 
     QRegExp();
diff --git a/src/corelib/tools/qringbuffer_p.h b/src/corelib/tools/qringbuffer_p.h
index d8ca658..7cfca0e 100644
--- a/src/corelib/tools/qringbuffer_p.h
+++ b/src/corelib/tools/qringbuffer_p.h
@@ -304,6 +304,54 @@ public:
         return read(size());
     }
 
+    // read an unspecified amount (will read the first buffer)
+    inline QByteArray read() {
+        if (bufferSize == 0)
+            return QByteArray();
+
+        // multiple buffers, just take the first one
+        if (head == 0 && tailBuffer != 0) {
+            QByteArray qba = buffers.takeFirst();
+            --tailBuffer;
+            bufferSize -= qba.length();
+            return qba;
+        }
+
+        // one buffer with good value for head. Just take it.
+        if (head == 0 && tailBuffer == 0) {
+            QByteArray qba = buffers.takeFirst();
+            qba.resize(tail);
+            buffers << QByteArray();
+            bufferSize = 0;
+            tail = 0;
+            return qba;
+        }
+
+        // Bad case: We have to memcpy.
+        // We can avoid by initializing the QRingBuffer with basicBlockSize of 0
+        // and only using this read() function.
+        QByteArray qba(readPointer(), nextDataBlockSize());
+        buffers.removeFirst();
+        head = 0;
+        if (tailBuffer == 0) {
+            buffers << QByteArray();
+            tail = 0;
+        } else {
+            --tailBuffer;
+        }
+        bufferSize -= qba.length();
+        return qba;        
+    }
+
+    // append a new buffer to the end
+    inline void append(const QByteArray &qba) {
+        buffers[tailBuffer].resize(tail);
+        buffers << qba;
+        ++tailBuffer;
+        tail = qba.length();
+        bufferSize += qba.length();
+    }
+
     inline QByteArray peek(int maxLength) const {
         int bytesToRead = qMin(size(), maxLength);
         if(maxLength <= 0)
@@ -358,7 +406,7 @@ public:
 private:
     QList<QByteArray> buffers;
     int head, tail;
-    int tailBuffer;
+    int tailBuffer; // always buffers.size() - 1
     int basicBlockSize;
     int bufferSize;
 };
diff --git a/src/corelib/tools/qsharedpointer.cpp b/src/corelib/tools/qsharedpointer.cpp
index 083fea6..596a125 100644
--- a/src/corelib/tools/qsharedpointer.cpp
+++ b/src/corelib/tools/qsharedpointer.cpp
@@ -345,6 +345,24 @@
 */
 
 /*!
+    \fn QSharedPointer<X> QSharedPointer::objectCast() const
+    \since 4.6
+
+    Performs a \l qobject_cast() from this pointer's type to \tt X and
+    returns a QSharedPointer that shares the reference. If this
+    function is used to up-cast, then QSharedPointer will perform a \tt
+    qobject_cast, which means that if the object being pointed by this
+    QSharedPointer is not of type \tt X, the returned object will be
+    null.
+
+    Note: the template type \c X must have the same const and volatile
+    qualifiers as the template of this object, or the cast will
+    fail. Use constCast() if you need to drop those qualifiers.
+
+    \sa qSharedPointerObjectCast()
+*/
+
+/*!
     \fn QWeakPointer<T> QSharedPointer::toWeakRef() const
 
     Returns a weak reference object that shares the pointer referenced
@@ -723,6 +741,47 @@
 */
 
 /*!
+    \fn QSharedPointer<X> qSharedPointerObjectCast(const QSharedPointer<T> &other)
+    \relates QSharedPointer
+    \since 4.6
+
+    Returns a shared pointer to the pointer held by \a other, using a
+    \l qobject_cast() to type \tt X to obtain an internal pointer of the
+    appropriate type. If the \tt qobject_cast fails, the object
+    returned will be null.
+
+    Note that \tt X must have the same cv-qualifiers (\tt const and
+    \tt volatile) that \tt T has, or the code will fail to
+    compile. Use qSharedPointerConstCast to cast away the constness.
+
+    \sa QSharedPointer::objectCast(), qSharedPointerCast(), qSharedPointerConstCast()
+*/
+
+/*!
+    \fn QSharedPointer<X> qSharedPointerObjectCast(const QWeakPointer<T> &other)
+    \relates QSharedPointer
+    \relates QWeakPointer
+    \since 4.6
+
+    Returns a shared pointer to the pointer held by \a other, using a
+    \l qobject_cast() to type \tt X to obtain an internal pointer of the
+    appropriate type. If the \tt qobject_cast fails, the object
+    returned will be null.
+
+    The \a other object is converted first to a strong reference. If
+    that conversion fails (because the object it's pointing to has
+    already been deleted), this function also returns a null
+    QSharedPointer.
+
+    Note that \tt X must have the same cv-qualifiers (\tt const and
+    \tt volatile) that \tt T has, or the code will fail to
+    compile. Use qSharedPointerConstCast to cast away the constness.
+
+    \sa QWeakPointer::toStrongRef(), qSharedPointerCast(), qSharedPointerConstCast()
+*/
+
+
+/*!
     \fn QWeakPointer<X> qWeakPointerCast(const QWeakPointer<T> &other)
     \relates QWeakPointer
 
diff --git a/src/corelib/tools/qsharedpointer.h b/src/corelib/tools/qsharedpointer.h
index cd6bc62..abd83ad 100644
--- a/src/corelib/tools/qsharedpointer.h
+++ b/src/corelib/tools/qsharedpointer.h
@@ -93,6 +93,7 @@ public:
     template <class X> QSharedPointer<X> staticCast() const;
     template <class X> QSharedPointer<X> dynamicCast() const;
     template <class X> QSharedPointer<X> constCast() const;
+    template <class X> QSharedPointer<X> objectCast() const;
 };
 
 template <class T>
@@ -136,6 +137,8 @@ template <class X, class T> QSharedPointer<X> qSharedPointerDynamicCast(const QS
 template <class X, class T> QSharedPointer<X> qSharedPointerDynamicCast(const QWeakPointer<T> &src);
 template <class X, class T> QSharedPointer<X> qSharedPointerConstCast(const QSharedPointer<T> &src);
 template <class X, class T> QSharedPointer<X> qSharedPointerConstCast(const QWeakPointer<T> &src);
+template <class X, class T> QSharedPointer<X> qSharedPointerObjectCast(const QSharedPointer<T> &src);
+template <class X, class T> QSharedPointer<X> qSharedPointerObjectCast(const QWeakPointer<T> &src);
 
 template <class X, class T> QWeakPointer<X> qWeakPointerCast(const QWeakPointer<T> &src);
 
diff --git a/src/corelib/tools/qsharedpointer_impl.h b/src/corelib/tools/qsharedpointer_impl.h
index b928795..3043dc9 100644
--- a/src/corelib/tools/qsharedpointer_impl.h
+++ b/src/corelib/tools/qsharedpointer_impl.h
@@ -49,6 +49,7 @@
 #endif
 
 #include <QtCore/qatomic.h>
+#include <QtCore/qobject.h>    // for qobject_cast
 
 QT_BEGIN_HEADER
 
@@ -83,6 +84,11 @@ QSharedPointer<X> qSharedPointerDynamicCast(const QSharedPointer<T> &ptr);
 template <class X, class T>
 QSharedPointer<X> qSharedPointerConstCast(const QSharedPointer<T> &ptr);
 
+#ifndef QT_NO_QOBJECT
+template <class X, class T>
+QSharedPointer<X> qSharedPointerObjectCast(const QSharedPointer<T> &ptr);
+#endif
+
 namespace QtSharedPointer {
     template <class T> class InternalRefCount;
     template <class T> class ExternalRefCount;
@@ -128,7 +134,7 @@ namespace QtSharedPointer {
         inline T *operator->() const { return data(); }
 
     protected:
-        inline Basic() : value(0 * sizeof(T)) { }
+        inline Basic() : value(0) { }
         // ~Basic();
 
         inline void verifyReconstruction(const T *ptr)
@@ -336,6 +342,14 @@ public:
         return qSharedPointerConstCast<X, T>(*this);
     }
 
+#ifndef QT_NO_QOBJECT
+    template <class X>
+    QSharedPointer<X> objectCast() const
+    {
+        return qSharedPointerObjectCast<X, T>(*this);
+    }
+#endif
+
     inline void clear() { *this = QSharedPointer<T>(); }
 
     QWeakPointer<T> toWeakRef() const;
@@ -557,6 +571,43 @@ QWeakPointer<X> qWeakPointerCast(const QSharedPointer<T> &src)
     return qSharedPointerCast<X, T>(src).toWeakRef();
 }
 
+#ifndef QT_NO_QOBJECT
+template <class X, class T>
+Q_INLINE_TEMPLATE QSharedPointer<X> qSharedPointerObjectCast(const QSharedPointer<T> &src)
+{
+    register X *ptr = qobject_cast<X *>(src.data());
+    return QtSharedPointer::copyAndSetPointer(ptr, src);
+}
+template <class X, class T>
+Q_INLINE_TEMPLATE QSharedPointer<X> qSharedPointerObjectCast(const QWeakPointer<T> &src)
+{
+    return qSharedPointerObjectCast<X>(src.toStrongRef());
+}
+
+# ifndef QT_NO_PARTIAL_TEMPLATE_SPECIALIZATION
+namespace QtSharedPointer {
+    template <class T> struct RemovePointer;
+    template <class T> struct RemovePointer<T *> { typedef T Type; };
+    template <class T> struct RemovePointer<QSharedPointer<T> > { typedef T Type; };
+    template <class T> struct RemovePointer<QWeakPointer<T> > { typedef T Type; };
+}
+
+template <class X, class T>
+inline QSharedPointer<typename QtSharedPointer::RemovePointer<X>::Type>
+qobject_cast(const QSharedPointer<T> &src)
+{
+    return qSharedPointerObjectCast<typename QtSharedPointer::RemovePointer<X>::Type, T>(src);
+}
+template <class X, class T>
+inline QSharedPointer<typename QtSharedPointer::RemovePointer<X>::Type>
+qobject_cast(const QWeakPointer<T> &src)
+{
+    return qSharedPointerObjectCast<typename QtSharedPointer::RemovePointer<X>::Type, T>(src);
+}
+# endif
+
+#endif
+
 QT_END_NAMESPACE
 
 QT_END_HEADER
diff --git a/src/corelib/tools/qstring.cpp b/src/corelib/tools/qstring.cpp
index 38b6f58..f3c773b 100644
--- a/src/corelib/tools/qstring.cpp
+++ b/src/corelib/tools/qstring.cpp
@@ -45,6 +45,7 @@
 #ifndef QT_NO_TEXTCODEC
 #include <qtextcodec.h>
 #endif
+#include <private/qutfcodec_p.h>
 #include <qdatastream.h>
 #include <qlist.h>
 #include "qlocale.h"
@@ -964,7 +965,8 @@ int QString::toWCharArray(wchar_t *array) const
     Constructs a string initialized with the first \a size characters
     of the QChar array \a unicode.
 
-    QString makes a deep copy of the string data.
+    QString makes a deep copy of the string data. The unicode data is copied as
+    is and the Byte Order Mark is preserved if present.
 */
 QString::QString(const QChar *unicode, int size)
 {
@@ -3482,7 +3484,7 @@ QByteArray QString::toAscii() const
     return toLatin1();
 }
 
-#ifndef Q_WS_MAC
+#if !defined(Q_WS_MAC) && defined(Q_OS_UNIX)
 static QByteArray toLocal8Bit_helper(const QChar *data, int length)
 {
 #ifndef QT_NO_TEXTCODEC
@@ -3717,13 +3719,13 @@ QByteArray qt_winQString2MB(const QChar *ch, int uclen)
     BOOL used_def;
     QByteArray mb(4096, 0);
     int len;
-    while (!(len=WideCharToMultiByte(CP_ACP, 0, (const WCHAR*)ch, uclen,
+    while (!(len=WideCharToMultiByte(CP_ACP, 0, (const wchar_t*)ch, uclen,
                 mb.data(), mb.size()-1, 0, &used_def)))
     {
         int r = GetLastError();
         if (r == ERROR_INSUFFICIENT_BUFFER) {
             mb.resize(1+WideCharToMultiByte(CP_ACP, 0,
-                                (const WCHAR*)ch, uclen,
+                                (const wchar_t*)ch, uclen,
                                 0, 0, 0, &used_def));
                 // and try again...
         } else {
@@ -3744,9 +3746,9 @@ QString qt_winMB2QString(const char *mb, int mblen)
     if (!mb || !mblen)
         return QString();
     const int wclen_auto = 4096;
-    WCHAR wc_auto[wclen_auto];
+    wchar_t wc_auto[wclen_auto];
     int wclen = wclen_auto;
-    WCHAR *wc = wc_auto;
+    wchar_t *wc = wc_auto;
     int len;
     while (!(len=MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED,
                 mb, mblen, wc, wclen)))
@@ -3759,7 +3761,7 @@ QString qt_winMB2QString(const char *mb, int mblen)
             } else {
                 wclen = MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED,
                                     mb, mblen, 0, 0);
-                wc = new WCHAR[wclen];
+                wc = new wchar_t[wclen];
                 // and try again...
             }
         } else {
@@ -3802,11 +3804,6 @@ QString QString::fromLocal8Bit(const char *str, int size)
         return QString();
     if (size == 0 || (!*str && size < 0))
         return QLatin1String("");
-#if defined(Q_OS_WIN32)
-    if(QSysInfo::WindowsVersion & QSysInfo::WV_DOS_based) {
-        return qt_winMB2QString(str, size);
-    }
-#endif
 #if !defined(QT_NO_TEXTCODEC)
     if (size < 0)
         size = qstrlen(str);
@@ -3851,74 +3848,7 @@ QString QString::fromUtf8(const char *str, int size)
     if (size < 0)
         size = qstrlen(str);
 
-    QString result(size, Qt::Uninitialized); // worst case
-    ushort *qch = result.d->data;
-    uint uc = 0;
-    uint min_uc = 0;
-    int need = 0;
-    int error = -1;
-    uchar ch;
-    int i = 0;
-
-    // skip utf8-encoded byte order mark
-    if (size >= 3
-        && (uchar)str[0] == 0xef && (uchar)str[1] == 0xbb && (uchar)str[2] == 0xbf)
-        i += 3;
-
-    for (; i < size; ++i) {
-        ch = str[i];
-        if (need) {
-            if ((ch&0xc0) == 0x80) {
-                uc = (uc << 6) | (ch & 0x3f);
-                need--;
-                if (!need) {
-                    if (uc > 0xffffU && uc < 0x110000U) {
-                        // surrogate pair
-                        *qch++ = QChar::highSurrogate(uc);
-                        uc = QChar::lowSurrogate(uc);
-                    } else if ((uc < min_uc) || (uc >= 0xd800 && uc <= 0xdfff) || (uc >= 0xfffe)) {
-			// overlong seqence, UTF16 surrogate or BOM
-                        uc = QChar::ReplacementCharacter;
-                    }
-                    *qch++ = uc;
-                }
-            } else {
-                i = error;
-                need = 0;
-                *qch++ = QChar::ReplacementCharacter;
-            }
-        } else {
-            if (ch < 128) {
-                *qch++ = ch;
-            } else if ((ch & 0xe0) == 0xc0) {
-                uc = ch & 0x1f;
-                need = 1;
-                error = i;
-                min_uc = 0x80;
-            } else if ((ch & 0xf0) == 0xe0) {
-                uc = ch & 0x0f;
-                need = 2;
-                error = i;
-                min_uc = 0x800;
-            } else if ((ch&0xf8) == 0xf0) {
-                uc = ch & 0x07;
-                need = 3;
-                error = i;
-                min_uc = 0x10000;
-            } else {
-                // Error
-                *qch++ = QChar::ReplacementCharacter;
-            }
-        }
-    }
-    if (need) {
-        // we have some invalid characters remaining we need to add to the string
-        for (int i = error; i < size; ++i)
-            *qch++ = QChar::ReplacementCharacter;
-    }
-
-    result.truncate(qch - result.d->data);
-    return result;
+    return QUtf8::convertToUnicode(str, size, 0);
 }
 
 /*!
@@ -3941,7 +3871,7 @@ QString QString::fromUtf16(const ushort *unicode, int size)
         while (unicode[size] != 0)
             ++size;
     }
-    return QString((const QChar *)unicode, size);
+    return QUtf16::convertToUnicode((const char *)unicode, size*2, 0);
 }
 
 
@@ -3965,20 +3895,7 @@ QString QString::fromUcs4(const uint *unicode, int size)
         while (unicode[size] != 0)
             ++size;
     }
-
-    QString s(size * 2, Qt::Uninitialized); // worst case
-    ushort *uc = s.d->data;
-    for (int i = 0; i < size; ++i) {
-        uint u = unicode[i];
-        if (u > 0xffff) {
-            // decompose into a surrogate pair
-            *uc++ = QChar::highSurrogate(u);
-            u = QChar::lowSurrogate(u);
-        }
-        *uc++ = u;
-    }
-    s.resize(uc - s.d->data);
-    return s;
+    return QUtf32::convertToUnicode((const char *)unicode, size*4, 0);
 }
 
 /*!
@@ -4700,16 +4617,7 @@ int QString::localeAwareCompare_helper(const QChar *data1, int length1,
         return ucstrcmp(data1, length1, data2, length2);
 
 #if defined(Q_OS_WIN32) || defined(Q_OS_WINCE)
-    int res;
-    QT_WA({
-        const TCHAR* s1 = (TCHAR*)data1;
-        const TCHAR* s2 = (TCHAR*)data2;
-        res = CompareStringW(GetUserDefaultLCID(), 0, s1, length1, s2, length2);
-    } , {
-        QByteArray s1 = toLocal8Bit_helper(data1, length1);
-        QByteArray s2 = toLocal8Bit_helper(data2, length2);
-        res = CompareStringA(GetUserDefaultLCID(), 0, s1.data(), s1.length(), s2.data(), s2.length());
-    });
+    int res = CompareString(GetUserDefaultLCID(), 0, (wchar_t*)data1, length1, (wchar_t*)data2, length2);
 
     switch (res) {
     case CSTR_LESS_THAN:
@@ -6123,6 +6031,7 @@ QString QString::repeated(int times) const
     return result;
 }
 
+void qt_string_normalize(QString *data, QString::NormalizationForm mode, QChar::UnicodeVersion version, int from);
 /*!
     \overload
     \fn QString QString::normalized(NormalizationForm mode, QChar::UnicodeVersion version) const
@@ -6132,42 +6041,48 @@ QString QString::repeated(int times) const
 */
 QString QString::normalized(QString::NormalizationForm mode, QChar::UnicodeVersion version) const
 {
+    QString copy = *this;
+    qt_string_normalize(&copy, mode, version, 0);
+    return copy;
+}
+
+void qt_string_normalize(QString *data, QString::NormalizationForm mode, QChar::UnicodeVersion version, int from)
+{
     bool simple = true;
-    for (int i = 0; i < d->size; ++i) {
-        if (d->data[i] >= 0x80) {
+    const QChar *p = data->constData();
+    int len = data->length();
+    for (int i = from; i < len; ++i) {
+        if (p[i].unicode() >= 0x80) {
             simple = false;
             break;
         }
     }
     if (simple)
-        return *this;
+        return;
 
-    QString s = *this;
+    QString &s = *data;
     if (version != CURRENT_VERSION) {
         for (int i = 0; i < NumNormalizationCorrections; ++i) {
             const NormalizationCorrection &n = uc_normalization_corrections[i];
             if (n.version > version) {
+                int pos = from;
                 if (n.ucs4 > 0xffff) {
                     ushort ucs4High = QChar::highSurrogate(n.ucs4);
                     ushort ucs4Low = QChar::lowSurrogate(n.ucs4);
                     ushort oldHigh = QChar::highSurrogate(n.old_mapping);
                     ushort oldLow = QChar::lowSurrogate(n.old_mapping);
-                    int pos = 0;
-                    while (pos < s.d->size - 1) {
-                        if (s.d->data[pos] == ucs4High && s.d->data[pos + 1] == ucs4Low) {
-                            s.detach();
-                            s.d->data[pos] = oldHigh;
-                            s.d->data[pos + 1] = oldLow;
+                    while (pos < s.length() - 1) {
+                        if (s.at(pos).unicode() == ucs4High && s.at(pos + 1).unicode() == ucs4Low) {
+                            s[pos] = oldHigh;
+                            s[pos + 1] = oldLow;
                             ++pos;
                         }
                         ++pos;
                     }
                 } else {
-                    int pos = 0;
-                    while (pos < s.d->size) {
-                        if (s.d->data[pos] == n.ucs4) {
-                            s.detach();
-                            s.d->data[pos] = n.old_mapping;
+                    while (pos < s.length()) {
+                        if (s.at(pos).unicode() == n.ucs4) {
+                            s[pos] = n.old_mapping;
                         }
                         ++pos;
                     }
@@ -6175,15 +6090,14 @@ QString QString::normalized(QString::NormalizationForm mode, QChar::UnicodeVersi
             }
         }
     }
-    s = decomposeHelper(s, mode < QString::NormalizationForm_KD, version);
+    decomposeHelper(data, mode < QString::NormalizationForm_KD, version, from);
 
-    s = canonicalOrderHelper(s, version);
+    canonicalOrderHelper(data, version, from);
 
     if (mode == QString::NormalizationForm_D || mode == QString::NormalizationForm_KD)
-        return s;
-
-    return composeHelper(s);
+        return;
 
+    composeHelper(data, from);
 }
 
 
@@ -6568,7 +6482,7 @@ QString QString::arg(qlonglong a, int fieldWidth, int base, const QChar &fillCha
     ArgEscapeData d = findArgEscapes(*this);
 
     if (d.occurrences == 0) {
-        qWarning("QString::arg: Argument missing: %s, %lld", toLocal8Bit().data(), a);
+        qWarning() << "QString::arg: Argument missing:" << *this << ',' << a;
         return *this;
     }
 
@@ -6611,7 +6525,7 @@ QString QString::arg(qulonglong a, int fieldWidth, int base, const QChar &fillCh
     ArgEscapeData d = findArgEscapes(*this);
 
     if (d.occurrences == 0) {
-        qWarning("QString::arg: Argument missing: %s, %llu", toLocal8Bit().data(), a);
+        qWarning() << "QString::arg: Argument missing:" << *this << ',' << a;
         return *this;
     }
 
diff --git a/src/corelib/tools/qstring.h b/src/corelib/tools/qstring.h
index 6bb0d8e..235c603 100644
--- a/src/corelib/tools/qstring.h
+++ b/src/corelib/tools/qstring.h
@@ -1235,6 +1235,8 @@ inline int QStringRef::localeAwareCompare(const QStringRef &s1, const QStringRef
 
 QT_END_NAMESPACE
 
+QT_END_HEADER
+
 #ifdef QT_USE_FAST_CONCATENATION
 #include <QtCore/qstringbuilder.h>
 #endif
diff --git a/src/corelib/tools/qstringbuilder.h b/src/corelib/tools/qstringbuilder.h
index 852c072..3b43253 100644
--- a/src/corelib/tools/qstringbuilder.h
+++ b/src/corelib/tools/qstringbuilder.h
@@ -69,7 +69,7 @@ private:
 };
 
 
-template <typename T> class QConcatenable {};
+template <typename T> struct QConcatenable {};
 
 template <typename A, typename B>
 class QStringBuilder
@@ -202,6 +202,18 @@ template <> struct QConcatenable<const char *>
             *out++ = QLatin1Char(*a++);
     }
 };
+
+template <> struct QConcatenable<QByteArray>
+{
+    typedef QByteArray type;
+    static int size(const QByteArray &ba) { return qstrnlen(ba.constData(), ba.size()); }
+    static inline void appendTo(const QByteArray &ba, QChar *&out)
+    {
+        const char *data = ba.constData();
+        while (*data)
+            *out++ = QLatin1Char(*data++);
+    }
+};
 #endif
 
 template <typename A, typename B>
diff --git a/src/corelib/tools/qstringlist.cpp b/src/corelib/tools/qstringlist.cpp
index 5a2b37a..5c550af 100644
--- a/src/corelib/tools/qstringlist.cpp
+++ b/src/corelib/tools/qstringlist.cpp
@@ -41,6 +41,7 @@
 
 #include <qstringlist.h>
 #include <qset.h>
+#include <qstringmatcher.h>
 
 QT_BEGIN_NAMESPACE
 
diff --git a/src/corelib/tools/qstringlist.h b/src/corelib/tools/qstringlist.h
index 665c0d0..f36567a 100644
--- a/src/corelib/tools/qstringlist.h
+++ b/src/corelib/tools/qstringlist.h
@@ -47,7 +47,6 @@
 #include <QtCore/qlist.h>
 #include <QtCore/qregexp.h>
 #include <QtCore/qstring.h>
-#include <QtCore/qstringmatcher.h>
 #ifdef QT_INCLUDE_COMPAT
 #include <Qt3Support/q3valuelist.h>
 #endif
diff --git a/src/corelib/tools/qstringmatcher.h b/src/corelib/tools/qstringmatcher.h
index 2b8edc9..61b7a95 100644
--- a/src/corelib/tools/qstringmatcher.h
+++ b/src/corelib/tools/qstringmatcher.h
@@ -81,13 +81,14 @@ private:
 // explicitely allow anonymous unions for RVCT to prevent compiler warnings
 #pragma anon_unions
 #endif
+    struct Data {
+        uchar q_skiptable[256];
+        const QChar *uc;
+        int len;
+    };
     union {
         uint q_data[256];
-        struct {
-            uchar q_skiptable[256];
-            const QChar *uc;
-            int len;
-        } p;
+        Data p;
     };
 };
 
diff --git a/src/corelib/tools/qtimeline.cpp b/src/corelib/tools/qtimeline.cpp
index 04aed39..e32fc03 100644
--- a/src/corelib/tools/qtimeline.cpp
+++ b/src/corelib/tools/qtimeline.cpp
@@ -555,6 +555,8 @@ void QTimeLine::setCurveShape(CurveShape shape)
 /*!
     \property QTimeLine::easingCurve
 
+    \since 4.6
+
     Specifies the easing curve that the timeline will use.
     If both easing curve and curveShape are set, the last set property will
     override the previous one. (If valueForTime() is reimplemented it will 
diff --git a/src/corelib/tools/qvector.h b/src/corelib/tools/qvector.h
index 9fc9c03..247f9f1 100644
--- a/src/corelib/tools/qvector.h
+++ b/src/corelib/tools/qvector.h
@@ -418,7 +418,9 @@ void QVector<T>::free(Data *x)
 {
     if (QTypeInfo<T>::isComplex) {
         T* b = x->array;
-        T* i = b + reinterpret_cast<QVectorData *>(x)->size;
+        union { QVectorData *d; Data *p; } u;
+        u.p = x;
+        T* i = b + u.d->size;
         while (i-- != b)
              i->~T();
     }
diff --git a/src/corelib/tools/tools.pri b/src/corelib/tools/tools.pri
index 1162238..85d9dbf 100644
--- a/src/corelib/tools/tools.pri
+++ b/src/corelib/tools/tools.pri
@@ -5,6 +5,7 @@ HEADERS +=  \
 	tools/qbitarray.h \
 	tools/qbytearray.h \
 	tools/qbytearraymatcher.h \
+        tools/qbytedata_p.h \
 	tools/qcache.h \
 	tools/qchar.h \
 	tools/qcontainerfwd.h \
diff --git a/src/corelib/xml/qxmlstream.cpp b/src/corelib/xml/qxmlstream.cpp
index 79b9bf2..3c771fd 100644
--- a/src/corelib/xml/qxmlstream.cpp
+++ b/src/corelib/xml/qxmlstream.cpp
@@ -567,7 +567,7 @@ bool QXmlStreamReader::atEnd() const
   returns true, hasError() returns true, and this function returns
   QXmlStreamReader::Invalid.
 
-  The exception is when error() return PrematureEndOfDocumentError.
+  The exception is when error() returns PrematureEndOfDocumentError.
   This error is reported when the end of an otherwise well-formed
   chunk of XML is reached, but the chunk doesn't represent a complete
   XML document.  In that case, parsing \e can be resumed by calling
author	Jason Barron <jbarron@trolltech.com>	2009-07-24 09:45:33 (GMT)
committer	Jason Barron <jbarron@trolltech.com>	2009-07-27 13:04:30 (GMT)
commit	3643028959f0b38350e57e60ba4000435b75e592 (patch)
tree	c129e4dee11487abd437ab8ebd993ba261e06fa6 /src/corelib
parent	cf66c667a97c0079141eb3f2d9e997b7378ae792 (diff)
parent	c36139c665e61866aff4bf8572890a735167a7d0 (diff)
download	Qt-3643028959f0b38350e57e60ba4000435b75e592.zip Qt-3643028959f0b38350e57e60ba4000435b75e592.tar.gz Qt-3643028959f0b38350e57e60ba4000435b75e592.tar.bz2