Merge remote branch 'origin/4.6' into qt-4.7-from-4.6

Conflicts:
	configure.exe
	examples/multimedia/audioinput/audioinput.cpp
	src/corelib/io/qfsfileengine.cpp
	src/gui/egl/qegl_wince.cpp
	src/gui/egl/qeglproperties.cpp
	src/gui/egl/qeglproperties_p.h
	src/gui/embedded/directfb.pri
	src/gui/kernel/qapplication_win.cpp
	src/gui/painting/qdrawutil.cpp
	src/opengl/qgl_p.h
	src/sql/drivers/odbc/qsql_odbc.cpp
	src/sql/drivers/odbc/qsql_odbc.h
	tests/auto/auto.pro
	tests/auto/qgl/tst_qgl.cpp
	translations/assistant_adp_ru.ts

2 files changed, 18 insertions, 27 deletions

diff --git a/src/corelib/thread/qmutex.h b/src/corelib/thread/qmutex.h
index 80b50fc..677412e 100644
--- a/src/corelib/thread/qmutex.h
+++ b/src/corelib/thread/qmutex.h
@@ -95,7 +95,7 @@ class Q_CORE_EXPORT QMutexLocker
 {
 public:
     inline explicit QMutexLocker(QMutex *m)
-        : mtx(m)
+        : val(reinterpret_cast<quintptr>(m))
     {
         Q_ASSERT_X((val & quintptr(1u)) == quintptr(0),
                    "QMutexLocker", "QMutex pointer is misaligned");
@@ -105,19 +105,19 @@ public:
 
     inline void unlock()
     {
-        if (mtx) {
+        if (val) {
             if ((val & quintptr(1u)) == quintptr(1u)) {
                 val &= ~quintptr(1u);
-                mtx->unlock();
+                mutex()->unlock();
             }
         }
     }
 
     inline void relock()
     {
-        if (mtx) {
+        if (val) {
             if ((val & quintptr(1u)) == quintptr(0u)) {
-                mtx->lock();
+                mutex()->lock();
                 val |= quintptr(1u);
             }
         }
@@ -140,10 +140,7 @@ public:
 private:
     Q_DISABLE_COPY(QMutexLocker)
 
-    union {
-        QMutex *mtx;
-        quintptr val;
-    };
+    quintptr val;
 };
 
 #else // QT_NO_THREAD
diff --git a/src/corelib/thread/qreadwritelock.h b/src/corelib/thread/qreadwritelock.h
index 278b8d4..9521ac3 100644
--- a/src/corelib/thread/qreadwritelock.h
+++ b/src/corelib/thread/qreadwritelock.h
@@ -96,19 +96,19 @@ public:
 
     inline void unlock()
     {
-        if (q_lock) {
+        if (q_val) {
             if ((q_val & quintptr(1u)) == quintptr(1u)) {
                 q_val &= ~quintptr(1u);
-                q_lock->unlock();
+                readWriteLock()->unlock();
             }
         }
     }
 
     inline void relock()
     {
-        if (q_lock) {
+        if (q_val) {
             if ((q_val & quintptr(1u)) == quintptr(0u)) {
-                q_lock->lockForRead();
+                readWriteLock()->lockForRead();
                 q_val |= quintptr(1u);
             }
         }
@@ -119,14 +119,11 @@ public:
 
 private:
     Q_DISABLE_COPY(QReadLocker)
-    union {
-        QReadWriteLock *q_lock;
-        quintptr q_val;
-    };
+    quintptr q_val;
 };
 
 inline QReadLocker::QReadLocker(QReadWriteLock *areadWriteLock)
-    : q_lock(areadWriteLock)
+    : q_val(reinterpret_cast<quintptr>(areadWriteLock))
 {
     Q_ASSERT_X((q_val & quintptr(1u)) == quintptr(0),
                "QReadLocker", "QReadWriteLock pointer is misaligned");
@@ -143,19 +140,19 @@ public:
 
     inline void unlock()
     {
-        if (q_lock) {
+        if (q_val) {
             if ((q_val & quintptr(1u)) == quintptr(1u)) {
                 q_val &= ~quintptr(1u);
-                q_lock->unlock();
+                readWriteLock()->unlock();
             }
         }
     }
 
     inline void relock()
     {
-        if (q_lock) {
+        if (q_val) {
             if ((q_val & quintptr(1u)) == quintptr(0u)) {
-                q_lock->lockForWrite();
+                readWriteLock()->lockForWrite();
                 q_val |= quintptr(1u);
             }
         }
@@ -167,14 +164,11 @@ public:
 
 private:
     Q_DISABLE_COPY(QWriteLocker)
-    union{
-        QReadWriteLock *q_lock;
-        quintptr q_val;
-    };
+    quintptr q_val;
 };
 
 inline QWriteLocker::QWriteLocker(QReadWriteLock *areadWriteLock)
-    : q_lock(areadWriteLock)
+    : q_val(reinterpret_cast<quintptr>(areadWriteLock))
 {
     Q_ASSERT_X((q_val & quintptr(1u)) == quintptr(0),
                "QWriteLocker", "QReadWriteLock pointer is misaligned");