Merge remote-tracking branch 'origin/5.6' into 5.7

Change-Id: I9a10e1f3c9506ec8554d8f59b6300825ac730939

27 files changed, 209 insertions, 294 deletions

diff --git a/config.tests/unix/libdl/libdl.pro b/config.tests/unix/libdl/libdl.pro
index 00d4c47c6c..8ed5231a8f 100644
--- a/config.tests/unix/libdl/libdl.pro
+++ b/config.tests/unix/libdl/libdl.pro
@@ -1,3 +1,3 @@
 SOURCES = libdl.cpp
 CONFIG -= qt dylib
-LIBS += -ldl
+!qnx: LIBS += -ldl
diff --git a/configure b/configure
index 1e8a7ff16a..a7c9d0c7c9 100755
--- a/configure
+++ b/configure
@@ -4657,7 +4657,7 @@ if ! compileTest unix/ipc_sysv "ipc_sysv" ; then
     if compileTest unix/ipc_posix "ipc_posix" ; then
         QCONFIG_FLAGS="$QCONFIG_FLAGS QT_POSIX_IPC"
     else
-        if [ "$XPLATFORM_ANDROID" = "no" ] ; then
+        if [ "$XPLATFORM_ANDROID" = "no" ] && [ "$XPLATFORM_MINGW" = "no" ] ; then
             QCONFIG_FLAGS="$QCONFIG_FLAGS QT_NO_SYSTEMSEMAPHORE QT_NO_SHAREDMEMORY"
         fi
     fi
diff --git a/mkspecs/win32-icc/qmake.conf b/mkspecs/win32-icc/qmake.conf
index c9f6748b6c..dd54131526 100644
--- a/mkspecs/win32-icc/qmake.conf
+++ b/mkspecs/win32-icc/qmake.conf
@@ -4,6 +4,8 @@
 # Written for Intel C++
 #
 
+include(../common/angle.conf)
+
 MAKEFILE_GENERATOR      = MSVC.NET
 QMAKE_PLATFORM          = win32
 CONFIG                 += incremental flat debug_and_release debug_and_release_target
@@ -87,6 +89,8 @@ QMAKE_LIBS_CORE         = kernel32.lib user32.lib shell32.lib uuid.lib ole32.lib
 QMAKE_LIBS_GUI          = gdi32.lib comdlg32.lib oleaut32.lib imm32.lib winmm.lib ws2_32.lib ole32.lib user32.lib advapi32.lib
 QMAKE_LIBS_NETWORK      = ws2_32.lib
 QMAKE_LIBS_OPENGL       = glu32.lib opengl32.lib gdi32.lib user32.lib delayimp.lib
+QMAKE_LIBS_OPENGL_ES2   = $${LIBEGL_NAME}.lib $${LIBGLESV2_NAME}.lib gdi32.lib user32.lib
+QMAKE_LIBS_OPENGL_ES2_DEBUG = $${LIBEGL_NAME}d.lib $${LIBGLESV2_NAME}d.lib gdi32.lib user32.lib
 QMAKE_LIBS_COMPAT       = advapi32.lib shell32.lib comdlg32.lib user32.lib gdi32.lib ws2_32.lib
 QMAKE_LIBS_QT_ENTRY     = -lqtmain
 
diff --git a/qmake/generators/win32/msvc_vcproj.cpp b/qmake/generators/win32/msvc_vcproj.cpp
index 1b3b328243..c2b285ddc4 100644
--- a/qmake/generators/win32/msvc_vcproj.cpp
+++ b/qmake/generators/win32/msvc_vcproj.cpp
@@ -182,8 +182,10 @@ const char _slnProjDepEnd[]     = "\n\tEndProjectSection";
 const char _slnProjConfBeg[]    = "\n\tGlobalSection(ProjectConfigurationPlatforms) = postSolution";
 const char _slnProjRelConfTag1[]= ".Release|%1.ActiveCfg = Release|";
 const char _slnProjRelConfTag2[]= ".Release|%1.Build.0 = Release|";
+const char _slnProjRelConfTag3[]= ".Release|%1.Deploy.0 = Release|";
 const char _slnProjDbgConfTag1[]= ".Debug|%1.ActiveCfg = Debug|";
 const char _slnProjDbgConfTag2[]= ".Debug|%1.Build.0 = Debug|";
+const char _slnProjDbgConfTag3[]= ".Debug|%1.Deploy.0 = Debug|";
 const char _slnProjConfEnd[]    = "\n\tEndGlobalSection";
 const char _slnExtSections[]    = "\n\tGlobalSection(ExtensibilityGlobals) = postSolution"
                                   "\n\tEndGlobalSection"
@@ -722,8 +724,12 @@ void VcprojGenerator::writeSubDirs(QTextStream &t)
             platform = xplatform;
         t << "\n\t\t" << (*it)->uuid << QString(_slnProjDbgConfTag1).arg(xplatform) << platform;
         t << "\n\t\t" << (*it)->uuid << QString(_slnProjDbgConfTag2).arg(xplatform) << platform;
+        if (!project->isEmpty("CE_SDK") && !project->isEmpty("CE_ARCH"))
+            t << "\n\t\t" << (*it)->uuid << QString(_slnProjDbgConfTag3).arg(xplatform) << platform;
         t << "\n\t\t" << (*it)->uuid << QString(_slnProjRelConfTag1).arg(xplatform) << platform;
         t << "\n\t\t" << (*it)->uuid << QString(_slnProjRelConfTag2).arg(xplatform) << platform;
+        if (!project->isEmpty("CE_SDK") && !project->isEmpty("CE_ARCH"))
+            t << "\n\t\t" << (*it)->uuid << QString(_slnProjRelConfTag3).arg(xplatform) << platform;
     }
     t << _slnProjConfEnd;
     t << _slnExtSections;
@@ -1261,6 +1267,7 @@ void VcprojGenerator::initDeploymentTool()
             targetPath = QString("%CSIDL_PROGRAM_FILES%\\") + project->first("TARGET");
         if (targetPath.endsWith("/") || targetPath.endsWith("\\"))
             targetPath.chop(1);
+        conf.deployment.RemoteDirectory = targetPath;
     }
     const ProStringList dllPaths = project->values("QMAKE_DLL_PATHS");
     // Only deploy Qt libs for shared build
@@ -1268,6 +1275,7 @@ void VcprojGenerator::initDeploymentTool()
         !(conf.WinRT && project->first("MSVC_VER").toQString() == "14.0")) {
         // FIXME: This code should actually resolve the libraries from all Qt modules.
         ProStringList arg = project->values("QMAKE_LIBS") + project->values("QMAKE_LIBS_PRIVATE");
+        bool qpaPluginDeployed = false;
         for (ProStringList::ConstIterator it = arg.constBegin(); it != arg.constEnd(); ++it) {
             QString dllName = (*it).toQString();
             dllName.replace(QLatin1Char('\\'), QLatin1Char('/'));
@@ -1300,6 +1308,32 @@ void VcprojGenerator::initDeploymentTool()
                         + "|" + QDir::toNativeSeparators(info.absolutePath())
                         + "|" + targetPath
                         + "|0;";
+                if (!qpaPluginDeployed) {
+                    QChar debugInfixChar;
+                    bool foundGuid = false;
+                    if (foundGuid = dllName.contains(QLatin1String("Guid")))
+                        debugInfixChar = QLatin1Char('d');
+
+                    if (foundGuid || dllName.contains(QLatin1String("Gui"))) {
+                        QFileInfo info2;
+                        foreach (const ProString &dllPath, dllPaths) {
+                            QString absoluteDllFilePath = dllPath.toQString();
+                            if (!absoluteDllFilePath.endsWith(QLatin1Char('/')))
+                                absoluteDllFilePath += QLatin1Char('/');
+                            absoluteDllFilePath += QLatin1String("../plugins/platforms/qwindows") + debugInfixChar + QLatin1String(".dll");
+                            info2 = QFileInfo(absoluteDllFilePath);
+                            if (info2.exists())
+                                break;
+                        }
+                        if (info2.exists()) {
+                            conf.deployment.AdditionalFiles += QLatin1String("qwindows") + debugInfixChar + QLatin1String(".dll")
+                                                        + QLatin1Char('|') + QDir::toNativeSeparators(info2.absolutePath())
+                                                        + QLatin1Char('|') + targetPath + QLatin1String("\\platforms")
+                                                        + QLatin1String("|0;");
+                            qpaPluginDeployed = true;
+                        }
+                    }
+                }
             }
         }
     }
diff --git a/src/corelib/global/qlogging.cpp b/src/corelib/global/qlogging.cpp
index 86aa9b9e7a..8cd1190e32 100644
--- a/src/corelib/global/qlogging.cpp
+++ b/src/corelib/global/qlogging.cpp
@@ -1738,7 +1738,9 @@ void qErrnoWarning(int code, const char *msg, ...)
 
     \brief Changes the output of the default message handler.
 
-    Allows to tweak the output of qDebug(), qWarning(), qCritical() and qFatal().
+    Allows to tweak the output of qDebug(), qInfo(), qWarning(), qCritical(),
+    and qFatal(). The category logging output of qCDebug(), qCInfo(),
+    qCWarning(), and qCCritical() is formatted, too.
 
     Following placeholders are supported:
 
@@ -1791,7 +1793,7 @@ void qErrnoWarning(int code, const char *msg, ...)
 
     Custom message handlers can use qFormatLogMessage() to take \a pattern into account.
 
-    \sa qInstallMessageHandler(), {Debugging Techniques}
+    \sa qInstallMessageHandler(), {Debugging Techniques}, {QLoggingCategory}
  */
 
 QtMessageHandler qInstallMessageHandler(QtMessageHandler h)
diff --git a/src/corelib/io/forkfd_qt.cpp b/src/corelib/io/forkfd_qt.cpp
index 9bb102e18f..141efeb08c 100644
--- a/src/corelib/io/forkfd_qt.cpp
+++ b/src/corelib/io/forkfd_qt.cpp
@@ -41,11 +41,7 @@
 #include <QtCore/qatomic.h>
 #include "qprocess_p.h"
 
-#ifdef QPROCESS_USE_SPAWN
-#  define FORKFD_NO_FORKFD
-#else
-#  define FORKFD_NO_SPAWNFD
-#endif
+#define FORKFD_NO_SPAWNFD
 
 #if defined(QT_NO_DEBUG) && !defined(NDEBUG)
 #  define NDEBUG
diff --git a/src/corelib/io/qprocess.cpp b/src/corelib/io/qprocess.cpp
index e9c2cabc66..6f11d0892f 100644
--- a/src/corelib/io/qprocess.cpp
+++ b/src/corelib/io/qprocess.cpp
@@ -1186,17 +1186,6 @@ bool QProcessPrivate::_q_processDied()
     if (crashed) {
         exitStatus = QProcess::CrashExit;
         setErrorAndEmit(QProcess::Crashed);
-    } else {
-#ifdef QPROCESS_USE_SPAWN
-        // if we're using posix_spawn, waitForStarted always succeeds.
-        // POSIX documents that the sub-process launched by posix_spawn will exit with code
-        // 127 if anything prevents the target program from starting.
-        // http://pubs.opengroup.org/onlinepubs/009695399/functions/posix_spawn.html
-        if (exitStatus == QProcess::NormalExit && exitCode == 127) {
-            setError(QProcess::FailedToStart,
-                     QProcess::tr("Process failed to start (spawned process exited with code 127)"));
-        }
-#endif
     }
 
     bool wasRunning = (processState == QProcess::Running);
diff --git a/src/corelib/io/qprocess_p.h b/src/corelib/io/qprocess_p.h
index 043a44df81..1f88c3a043 100644
--- a/src/corelib/io/qprocess_p.h
+++ b/src/corelib/io/qprocess_p.h
@@ -68,9 +68,6 @@ typedef HANDLE Q_PIPE;
 #else
 typedef int Q_PIPE;
 #define INVALID_Q_PIPE -1
-#  ifdef Q_OS_QNX
-#    define QPROCESS_USE_SPAWN
-#  endif
 #endif
 
 #ifndef QT_NO_PROCESS
@@ -352,10 +349,8 @@ public:
 
     void start(QIODevice::OpenMode mode);
     void startProcess();
-#if defined(Q_OS_UNIX) && !defined(QPROCESS_USE_SPAWN)
+#if defined(Q_OS_UNIX)
     void execChild(const char *workingDirectory, char **path, char **argv, char **envp);
-#elif defined(QPROCESS_USE_SPAWN)
-    pid_t spawnChild(pid_t *ppid, const char *workingDirectory, char **argv, char **envp);
 #endif
     bool processStarted(QString *errorMessage = Q_NULLPTR);
     void terminateProcess();
diff --git a/src/corelib/io/qprocess_unix.cpp b/src/corelib/io/qprocess_unix.cpp
index f9d14c8e5a..93807e13eb 100644
--- a/src/corelib/io/qprocess_unix.cpp
+++ b/src/corelib/io/qprocess_unix.cpp
@@ -471,14 +471,8 @@ void QProcessPrivate::startProcess()
     }
 
     // Start the process manager, and fork off the child process.
-#if defined(QPROCESS_USE_SPAWN)
-    pid_t childPid;
-    forkfd = spawnChild(&childPid, workingDirPtr, argv, envp);
-    Q_ASSUME(forkfd != FFD_CHILD_PROCESS);
-#else
     pid_t childPid;
     forkfd = ::forkfd(FFD_CLOEXEC, &childPid);
-#endif
     int lastForkErrno = errno;
     if (forkfd != FFD_CHILD_PROCESS) {
         // Parent process.
@@ -512,12 +506,10 @@ void QProcessPrivate::startProcess()
     }
 
     // Start the child.
-#if !defined(QPROCESS_USE_SPAWN)
     if (forkfd == FFD_CHILD_PROCESS) {
         execChild(workingDirPtr, path, argv, envp);
         ::_exit(-1);
     }
-#endif
 
     pid = Q_PID(childPid);
 
@@ -556,147 +548,6 @@ void QProcessPrivate::startProcess()
     }
 }
 
-#if defined(QPROCESS_USE_SPAWN)
-static int doSpawn(pid_t *ppid, const posix_spawn_file_actions_t *file_actions,
-                   char **argv, char **envp, const char *workingDir, bool spawn_detached)
-{
-    // A multi threaded QNX Process can't fork so we call spawnfd() instead.
-    posix_spawnattr_t attr;
-    posix_spawnattr_init(&attr);
-#  ifdef Q_OS_QNX
-    posix_spawnattr_setxflags(&attr, POSIX_SPAWN_SETSIGDEF | POSIX_SPAWN_SETPGROUP
-                              | (spawn_detached * POSIX_SPAWN_NOZOMBIE));
-#  else
-    posix_spawnattr_setflags(&attr, POSIX_SPAWN_SETSIGDEF | POSIX_SPAWN_SETPGROUP);
-#  endif
-    posix_spawnattr_setpgroup(&attr, 0);
-
-    sigset_t sigdefault;
-    sigemptyset(&sigdefault);
-    sigaddset(&sigdefault, SIGPIPE); // reset the signal that we ignored
-    posix_spawnattr_setsigdefault(&attr, &sigdefault);
-
-    // enter the working directory
-    const char *oldWorkingDir = 0;
-    char buff[PATH_MAX + 1];
-
-    if (workingDir) {
-#  ifdef Q_OS_QNX
-        //we need to freeze everyone in order to avoid race conditions with //chdir().
-        if (ThreadCtl(_NTO_TCTL_THREADS_HOLD, 0) == -1)
-            qWarning("ThreadCtl(): cannot hold threads: %s", qPrintable(qt_error_string(errno)));
-#  endif
-
-        oldWorkingDir = QT_GETCWD(buff, PATH_MAX + 1);
-        if (QT_CHDIR(workingDir) == -1)
-            qWarning("ThreadCtl(): failed to chdir to %s", workingDir);
-    }
-
-    int fd;
-    if (spawn_detached) {
-        fd = ::posix_spawn(ppid, argv[0], file_actions, &attr, argv, envp);
-        if (fd == -1) {
-            fd = ::posix_spawnp(ppid, argv[0], file_actions, &attr, argv, envp);
-        }
-    } else {
-        // use spawnfd
-        fd = ::spawnfd(FFD_CLOEXEC | FFD_NONBLOCK, ppid, argv[0], file_actions, &attr, argv, envp);
-        if (fd == -1) {
-            fd = ::spawnfd(FFD_CLOEXEC | FFD_NONBLOCK | FFD_SPAWN_SEARCH_PATH, ppid, argv[0], file_actions,
-                           &attr, argv, envp);
-        }
-    }
-
-    if (oldWorkingDir) {
-        if (QT_CHDIR(oldWorkingDir) == -1)
-            qWarning("ThreadCtl(): failed to chdir to %s", oldWorkingDir);
-
-#  ifdef Q_OS_QNX
-        if (Q_UNLIKELY(ThreadCtl(_NTO_TCTL_THREADS_CONT, 0) == -1))
-            qFatal("ThreadCtl(): cannot resume threads: %s", qPrintable(qt_error_string(errno)));
-#  endif
-    }
-
-    posix_spawnattr_destroy(&attr);
-    return fd;
-}
-
-pid_t QProcessPrivate::spawnChild(pid_t *ppid, const char *workingDir, char **argv, char **envp)
-{
-    // posix_spawn causes all file descriptors with FD_CLOEXEC to be closed automatically;
-    // we only need to add the actions for our own pipes
-    posix_spawn_file_actions_t file_actions;
-    posix_spawn_file_actions_init(&file_actions);
-
-#   ifdef Q_OS_QNX
-    static const bool OS_QNX = true;
-#   else
-    static const bool OS_QNX = false;
-#endif
-
-    int fdmax = -1;
-
-    if (processChannelMode == QProcess::MergedChannels) {
-        // managed stderr == stdout
-        posix_spawn_file_actions_adddup2(&file_actions, stdoutChannel.pipe[1], STDERR_FILENO);
-
-        if (OS_QNX)
-            fdmax = qMax(fdmax, stdoutChannel.pipe[1]);
-    } else if (processChannelMode != QProcess::ForwardedChannels && processChannelMode != QProcess::ForwardedErrorChannel) {
-        // managed stderr
-        posix_spawn_file_actions_adddup2(&file_actions, stderrChannel.pipe[1], STDERR_FILENO);
-
-        if (OS_QNX)
-            fdmax = qMax(fdmax, stderrChannel.pipe[1]);
-        else
-            posix_spawn_file_actions_addclose(&file_actions, stderrChannel.pipe[1]);
-
-    }
-
-    if (processChannelMode != QProcess::ForwardedChannels && processChannelMode != QProcess::ForwardedOutputChannel) {
-        // managed stdout
-        posix_spawn_file_actions_adddup2(&file_actions, stdoutChannel.pipe[1], STDOUT_FILENO);
-
-        if (OS_QNX)
-            fdmax = qMax(fdmax, stdoutChannel.pipe[1]);
-        else
-            posix_spawn_file_actions_addclose(&file_actions, stdoutChannel.pipe[1]);
-
-    }
-
-    if (inputChannelMode == QProcess::ManagedInputChannel) {
-        posix_spawn_file_actions_adddup2(&file_actions, stdinChannel.pipe[0], STDIN_FILENO);
-
-        if (OS_QNX)
-            fdmax = qMax(fdmax, stdinChannel.pipe[0]);
-        else
-            posix_spawn_file_actions_addclose(&file_actions, stdinChannel.pipe[0]);
-    }
-
-    // Workaround: QNX's spawn implementation will actually dup all FD values
-    // LESS than fdmax - regardless of the FD_CLOEEXEC flag. So we need to add
-    // those to the list of files to close, otherwise dup will fail when some
-    // other thread closes the FD.
-    for (int i = 3; i <= fdmax; i++) {
-        if (::fcntl(i, F_GETFD) & FD_CLOEXEC)
-            posix_spawn_file_actions_addclose(&file_actions, i);
-    }
-
-    int retval = doSpawn(ppid, &file_actions, argv, envp, workingDir, false);
-
-    if (retval == -1) {
-        QString error = qt_error_string(errno);
-        qt_safe_write(childStartedPipe[1], error.data(), error.length() * sizeof(QChar));
-        qt_safe_close(childStartedPipe[1]);
-        childStartedPipe[1] = -1;
-    }
-
-    posix_spawn_file_actions_destroy(&file_actions);
-    return retval;
-}
-
-#else
-
 void QProcessPrivate::execChild(const char *workingDir, char **path, char **argv, char **envp)
 {
     ::signal(SIGPIPE, SIG_DFL);         // reset the signal that we ignored
@@ -770,7 +621,6 @@ report_errno:
     qt_safe_close(childStartedPipe[1]);
     childStartedPipe[1] = -1;
 }
-#endif
 
 bool QProcessPrivate::processStarted(QString *errorMessage)
 {
@@ -1064,40 +914,6 @@ bool QProcessPrivate::waitForDeadChild()
     return true;
 }
 
-#if defined(QPROCESS_USE_SPAWN)
-bool QProcessPrivate::startDetached(const QString &program, const QStringList &arguments, const QString &workingDirectory, qint64 *pid)
-{
-    QList<QByteArray> enc_args;
-    enc_args.append(QFile::encodeName(program));
-    for (int i = 0; i < arguments.size(); ++i)
-        enc_args.append(arguments.at(i).toLocal8Bit());
-
-    const int argc = enc_args.size();
-    QScopedArrayPointer<char*> raw_argv(new char*[argc + 1]);
-    for (int i = 0; i < argc; ++i)
-        raw_argv[i] = const_cast<char *>(enc_args.at(i).data());
-    raw_argv[argc] = 0;
-
-    char **envp = 0; // inherit environment
-
-    // Encode the working directory if it's non-empty, otherwise just pass 0.
-    const char *workingDirPtr = 0;
-    QByteArray encodedWorkingDirectory;
-    if (!workingDirectory.isEmpty()) {
-        encodedWorkingDirectory = QFile::encodeName(workingDirectory);
-        workingDirPtr = encodedWorkingDirectory.constData();
-    }
-
-    pid_t childPid;
-    int retval = doSpawn(&childPid, NULL, raw_argv.data(), envp, workingDirPtr, true);
-    if (pid && retval != -1)
-        *pid = childPid;
-
-    return retval != -1;
-}
-
-#else
-
 bool QProcessPrivate::startDetached(const QString &program, const QStringList &arguments, const QString &workingDirectory, qint64 *pid)
 {
     QByteArray encodedWorkingDirectory = QFile::encodeName(workingDirectory);
@@ -1212,7 +1028,6 @@ bool QProcessPrivate::startDetached(const QString &program, const QStringList &a
     qt_safe_close(pidPipe[0]);
     return success;
 }
-#endif
 
 QT_END_NAMESPACE
 
diff --git a/src/gui/kernel/qshapedpixmapdndwindow.cpp b/src/gui/kernel/qshapedpixmapdndwindow.cpp
index 40bf15b807..b54c6b67a2 100644
--- a/src/gui/kernel/qshapedpixmapdndwindow.cpp
+++ b/src/gui/kernel/qshapedpixmapdndwindow.cpp
@@ -97,7 +97,7 @@ void QShapedPixmapWindow::updateGeometry(const QPoint &pos)
 {
     QSize size(1, 1);
     if (!m_pixmap.isNull()) {
-        size = qFuzzyCompare(m_pixmap.devicePixelRatio(), 1.0)
+        size = qFuzzyCompare(m_pixmap.devicePixelRatio(), qreal(1.0))
             ? m_pixmap.size()
             : (QSizeF(m_pixmap.size()) / m_pixmap.devicePixelRatio()).toSize();
     }
diff --git a/src/gui/opengl/qopengl.h b/src/gui/opengl/qopengl.h
index 5543ac4a16..745adda969 100644
--- a/src/gui/opengl/qopengl.h
+++ b/src/gui/opengl/qopengl.h
@@ -187,7 +187,11 @@ typedef ptrdiff_t GLsizeiptrARB;
 #ifndef GL_ARB_shader_objects
 /* GL types for program/shader text and shader object handles */
 typedef char GLcharARB;
+# ifdef Q_OS_DARWIN
+typedef void *GLhandleARB;
+# else
 typedef unsigned int GLhandleARB;
+# endif // Q_OS_DARWIN
 #endif
 
 /* GL type for "half" precision (s10e5) float data in host memory */
diff --git a/src/plugins/platforms/android/qandroidinputcontext.cpp b/src/plugins/platforms/android/qandroidinputcontext.cpp
index eb9e95508c..dc420775cf 100644
--- a/src/plugins/platforms/android/qandroidinputcontext.cpp
+++ b/src/plugins/platforms/android/qandroidinputcontext.cpp
@@ -45,6 +45,7 @@
 #include "androidjniinput.h"
 #include "qandroideventdispatcher.h"
 #include "androiddeadlockprotector.h"
+#include "qandroidplatformintegration.h"
 #include <QDebug>
 #include <qevent.h>
 #include <qguiapplication.h>
@@ -53,6 +54,7 @@
 #include <qinputmethod.h>
 #include <qwindow.h>
 #include <QtCore/private/qjni_p.h>
+#include <private/qhighdpiscaling_p.h>
 
 #include <QTextCharFormat>
 
@@ -547,10 +549,13 @@ void QAndroidInputContext::showInputPanel()
     if (window)
         rect = QRect(window->mapToGlobal(rect.topLeft()), rect.size());
 
-    QtAndroidInput::showSoftwareKeyboard(rect.left(),
-                                         rect.top(),
-                                         rect.width(),
-                                         rect.height(),
+    double pixelDensity = window ? QHighDpiScaling::factor(window)
+                                 : QHighDpiScaling::factor(QtAndroid::androidPlatformIntegration()->screen());
+
+    QtAndroidInput::showSoftwareKeyboard(rect.left() * pixelDensity,
+                                         rect.top() * pixelDensity,
+                                         rect.width() * pixelDensity,
+                                         rect.height() * pixelDensity,
                                          query->value(Qt::ImHints).toUInt(),
                                          query->value(Qt::ImEnterKeyType).toUInt()
                                         );
diff --git a/src/plugins/platforms/cocoa/qcocoamenu.h b/src/plugins/platforms/cocoa/qcocoamenu.h
index 64eeabcc2d..7951a2ff70 100644
--- a/src/plugins/platforms/cocoa/qcocoamenu.h
+++ b/src/plugins/platforms/cocoa/qcocoamenu.h
@@ -49,7 +49,7 @@ QT_BEGIN_NAMESPACE
 
 class QCocoaMenuBar;
 
-class QCocoaMenu : public QPlatformMenu
+class QCocoaMenu : public QPlatformMenu, public QCocoaMenuObject
 {
 public:
     QCocoaMenu();
diff --git a/src/plugins/platforms/cocoa/qcocoamenu.mm b/src/plugins/platforms/cocoa/qcocoamenu.mm
index 3fc98c071f..0690a8e0fa 100644
--- a/src/plugins/platforms/cocoa/qcocoamenu.mm
+++ b/src/plugins/platforms/cocoa/qcocoamenu.mm
@@ -271,8 +271,8 @@ QCocoaMenu::QCocoaMenu() :
 QCocoaMenu::~QCocoaMenu()
 {
     foreach (QCocoaMenuItem *item, m_menuItems) {
-        if (COCOA_MENU_ANCESTOR(item) == this)
-            SET_COCOA_MENU_ANCESTOR(item, 0);
+        if (item->menuParent() == this)
+            item->setMenuParent(0);
     }
 
     QMacAutoReleasePool pool;
@@ -350,7 +350,7 @@ void QCocoaMenu::insertNative(QCocoaMenuItem *item, QCocoaMenuItem *beforeItem)
     } else {
         [m_nativeMenu addItem: item->nsItem()];
     }
-    SET_COCOA_MENU_ANCESTOR(item, this);
+    item->setMenuParent(this);
 }
 
 void QCocoaMenu::removeMenuItem(QPlatformMenuItem *menuItem)
@@ -362,8 +362,8 @@ void QCocoaMenu::removeMenuItem(QPlatformMenuItem *menuItem)
         return;
     }
 
-    if (COCOA_MENU_ANCESTOR(menuItem) == this)
-        SET_COCOA_MENU_ANCESTOR(menuItem, 0);
+    if (cocoaItem->menuParent() == this)
+        cocoaItem->setMenuParent(0);
 
     m_menuItems.removeOne(cocoaItem);
     if (!cocoaItem->isMerged()) {
diff --git a/src/plugins/platforms/cocoa/qcocoamenubar.mm b/src/plugins/platforms/cocoa/qcocoamenubar.mm
index e8b3823012..a445b6e9bf 100644
--- a/src/plugins/platforms/cocoa/qcocoamenubar.mm
+++ b/src/plugins/platforms/cocoa/qcocoamenubar.mm
@@ -320,7 +320,7 @@ void QCocoaMenuBar::updateMenuBarImmediately()
             continue;
         NSMenuItem *item = mb->nativeItemForMenu(menu);
         menu->setAttachedItem(item);
-        SET_COCOA_MENU_ANCESTOR(menu, mb);
+        menu->setMenuParent(mb);
         // force a sync?
         mb->syncMenu(menu);
         menu->syncModalState(disableForModal);
diff --git a/src/plugins/platforms/cocoa/qcocoamenuitem.h b/src/plugins/platforms/cocoa/qcocoamenuitem.h
index bba9ce3963..aafc66e06f 100644
--- a/src/plugins/platforms/cocoa/qcocoamenuitem.h
+++ b/src/plugins/platforms/cocoa/qcocoamenuitem.h
@@ -55,7 +55,24 @@ QT_BEGIN_NAMESPACE
 
 class QCocoaMenu;
 
-class QCocoaMenuItem : public QPlatformMenuItem
+class QCocoaMenuObject
+{
+public:
+    void setMenuParent(QObject *o)
+    {
+        parent = o;
+    }
+
+    QObject *menuParent() const
+    {
+        return parent;
+    }
+
+private:
+    QPointer<QObject> parent;
+};
+
+class QCocoaMenuItem : public QPlatformMenuItem, public QCocoaMenuObject
 {
 public:
     QCocoaMenuItem();
@@ -118,9 +135,6 @@ private:
     int m_iconSize;
 };
 
-#define COCOA_MENU_ANCESTOR(m) ((m)->property("_qCocoaMenuAncestor").value<QObject *>())
-#define SET_COCOA_MENU_ANCESTOR(m, ancestor) (m)->setProperty("_qCocoaMenuAncestor", QVariant::fromValue<QObject *>(ancestor))
-
 QT_END_NAMESPACE
 
 #endif
diff --git a/src/plugins/platforms/cocoa/qcocoamenuitem.mm b/src/plugins/platforms/cocoa/qcocoamenuitem.mm
index de0271ce4d..fa54c1e90e 100644
--- a/src/plugins/platforms/cocoa/qcocoamenuitem.mm
+++ b/src/plugins/platforms/cocoa/qcocoamenuitem.mm
@@ -113,8 +113,8 @@ QCocoaMenuItem::~QCocoaMenuItem()
 {
     QMacAutoReleasePool pool;
 
-    if (m_menu && COCOA_MENU_ANCESTOR(m_menu) == this)
-        SET_COCOA_MENU_ANCESTOR(m_menu, 0);
+    if (m_menu && m_menu->menuParent() == this)
+        m_menu->setMenuParent(0);
     if (m_merged) {
         [m_native setHidden:YES];
     } else {
@@ -140,14 +140,14 @@ void QCocoaMenuItem::setMenu(QPlatformMenu *menu)
         return;
 
     if (m_menu) {
-        if (COCOA_MENU_ANCESTOR(m_menu) == this)
-            SET_COCOA_MENU_ANCESTOR(m_menu, 0);
+        if (m_menu->menuParent() == this)
+            m_menu->setMenuParent(0);
     }
 
     QMacAutoReleasePool pool;
     m_menu = static_cast<QCocoaMenu *>(menu);
     if (m_menu) {
-        SET_COCOA_MENU_ANCESTOR(m_menu, this);
+        m_menu->setMenuParent(this);
     } else {
         // we previously had a menu, but no longer
         // clear out our item so the nexy sync() call builds a new one
@@ -237,12 +237,14 @@ NSMenuItem *QCocoaMenuItem::sync()
             mergeItem = [loader preferencesMenuItem];
             break;
         case TextHeuristicRole: {
-            QObject *p = COCOA_MENU_ANCESTOR(this);
+            QObject *p = menuParent();
             int depth = 1;
             QCocoaMenuBar *menubar = 0;
             while (depth < 3 && p && !(menubar = qobject_cast<QCocoaMenuBar *>(p))) {
                 ++depth;
-                p = COCOA_MENU_ANCESTOR(p);
+                QCocoaMenuObject *menuObject = dynamic_cast<QCocoaMenuObject *>(p);
+                Q_ASSERT(menuObject);
+                p = menuObject->menuParent();
             }
             if (depth == 3 || !menubar)
                 break; // Menu item too deep in the hierarchy, or not connected to any menubar
diff --git a/src/widgets/kernel/qwidget.cpp b/src/widgets/kernel/qwidget.cpp
index 027bf63a2e..281567cede 100644
--- a/src/widgets/kernel/qwidget.cpp
+++ b/src/widgets/kernel/qwidget.cpp
@@ -1250,11 +1250,14 @@ void QWidgetPrivate::createRecursively()
 }
 
 
-
+// ### fixme: Qt 6: Remove parameter window from QWidget::create()
 
 /*!
-    Creates a new widget window if \a window is 0, otherwise sets the
-    widget's window to \a window.
+    Creates a new widget window.
+
+    The parameter \a window is ignored in Qt 5. Please use
+    QWindow::fromWinId() to create a QWindow wrapping a foreign
+    window and pass it to QWidget::createWindowContainer() instead.
 
     Initializes the window (sets the geometry etc.) if \a
     initializeWindow is true. If \a initializeWindow is false, no
@@ -1267,11 +1270,15 @@ void QWidgetPrivate::createRecursively()
 
     The QWidget constructor calls create(0,true,true) to create a
     window for this widget.
+
+    \sa createWindowContainer(), QWindow::fromWinId()
 */
 
 void QWidget::create(WId window, bool initializeWindow, bool destroyOldWindow)
 {
     Q_D(QWidget);
+    if (Q_UNLIKELY(window))
+        qWarning("QWidget::create(): Parameter 'window' does not have any effect.");
     if (testAttribute(Qt::WA_WState_Created) && window == 0 && internalWinId())
         return;
 
@@ -1295,7 +1302,7 @@ void QWidget::create(WId window, bool initializeWindow, bool destroyOldWindow)
             // We're about to create a native child widget that doesn't have a native parent;
             // enforce a native handle for the parent unless the Qt::WA_DontCreateNativeAncestors
             // attribute is set.
-            d->createWinId(window);
+            d->createWinId();
             // Nothing more to do.
             Q_ASSERT(testAttribute(Qt::WA_WState_Created));
             Q_ASSERT(internalWinId());
@@ -2535,13 +2542,12 @@ WId QWidget::winId() const
     return data->winid;
 }
 
-
-void QWidgetPrivate::createWinId(WId winid)
+void QWidgetPrivate::createWinId()
 {
     Q_Q(QWidget);
 
 #ifdef ALIEN_DEBUG
-    qDebug() << "QWidgetPrivate::createWinId for" << q << winid;
+    qDebug() << "QWidgetPrivate::createWinId for" << q;
 #endif
     const bool forceNativeWindow = q->testAttribute(Qt::WA_NativeWindow);
     if (!q->testAttribute(Qt::WA_WState_Created) || (forceNativeWindow && !q->internalWinId())) {
@@ -2558,15 +2564,7 @@ void QWidgetPrivate::createWinId(WId winid)
                 QWidget *w = qobject_cast<QWidget *>(pd->children.at(i));
                 if (w && !w->isWindow() && (!w->testAttribute(Qt::WA_WState_Created)
                                             || (!w->internalWinId() && w->testAttribute(Qt::WA_NativeWindow)))) {
-                    if (w!=q) {
-                        w->create();
-                    } else {
-                        w->create(winid);
-                        // if the window has already been created, we
-                        // need to raise it to its proper stacking position
-                        if (winid)
-                            w->raise();
-                    }
+                    w->create();
                 }
             }
         } else {
diff --git a/src/widgets/kernel/qwidget_p.h b/src/widgets/kernel/qwidget_p.h
index 91af7a4cb0..838236536a 100644
--- a/src/widgets/kernel/qwidget_p.h
+++ b/src/widgets/kernel/qwidget_p.h
@@ -339,7 +339,7 @@ public:
     void init(QWidget *desktopWidget, Qt::WindowFlags f);
     void create_sys(WId window, bool initializeWindow, bool destroyOldWindow);
     void createRecursively();
-    void createWinId(WId id = 0);
+    void createWinId();
 
     void createTLExtra();
     void createExtra();
diff --git a/src/widgets/styles/images/cleartext-32.png b/src/widgets/styles/images/cleartext-32.png
new file mode 100644
index 0000000000..ff5a2b5ec1
--- /dev/null
+++ b/src/widgets/styles/images/cleartext-32.png
diff --git a/src/widgets/styles/qcommonstyle.cpp b/src/widgets/styles/qcommonstyle.cpp
index c26da68ac9..5ac2293751 100644
--- a/src/widgets/styles/qcommonstyle.cpp
+++ b/src/widgets/styles/qcommonstyle.cpp
@@ -5237,6 +5237,30 @@ static QPixmap cachedPixmapFromXPM(const char * const *xpm)
     return result;
 }
 
+static QIcon clearTextIcon(bool rtl)
+{
+    const QString directionalThemeName = rtl
+        ? QStringLiteral("edit-clear-locationbar-ltr") : QStringLiteral("edit-clear-locationbar-rtl");
+    if (QIcon::hasThemeIcon(directionalThemeName))
+        return QIcon::fromTheme(directionalThemeName);
+    const QString themeName = QStringLiteral("edit-clear");
+    if (QIcon::hasThemeIcon(themeName))
+        return QIcon::fromTheme(themeName);
+
+    QIcon icon;
+#ifndef QT_NO_IMAGEFORMAT_PNG
+    QPixmap clearText16(QStringLiteral(":/qt-project.org/styles/commonstyle/images/cleartext-16.png"));
+    Q_ASSERT(!clearText16.size().isEmpty());
+    icon.addPixmap(clearText16);
+    QPixmap clearText32(QStringLiteral(":/qt-project.org/styles/commonstyle/images/cleartext-32.png"));
+    Q_ASSERT(!clearText32.size().isEmpty());
+    icon.addPixmap(clearText32);
+    clearText32.setDevicePixelRatio(2); // The 32x32 pixmap can also be used for 16x16/devicePixelRatio=2
+    icon.addPixmap(clearText32);
+#endif // !QT_NO_IMAGEFORMAT_PNG
+    return icon;
+}
+
 /*! \reimp */
 QPixmap QCommonStyle::standardPixmap(StandardPixmap sp, const QStyleOption *option,
                                      const QWidget *widget) const
@@ -5409,12 +5433,8 @@ QPixmap QCommonStyle::standardPixmap(StandardPixmap sp, const QStyleOption *opti
                     }
                 }
                 break;
-        case SP_LineEditClearButton: {
-            QString themeName = rtl ? QStringLiteral("edit-clear-locationbar-ltr") : QStringLiteral("edit-clear-locationbar-rtl");
-            if (!QIcon::hasThemeIcon(themeName))
-                themeName = QStringLiteral("edit-clear");
-            pixmap = QIcon::fromTheme(themeName).pixmap(16);
-        }
+        case SP_LineEditClearButton:
+            pixmap = clearTextIcon(rtl).pixmap(16);
             break;
         default:
             break;
@@ -5544,8 +5564,6 @@ QPixmap QCommonStyle::standardPixmap(StandardPixmap sp, const QStyleOption *opti
         return QPixmap(QLatin1String(":/qt-project.org/styles/commonstyle/images/media-volume-16.png"));
     case SP_MediaVolumeMuted:
         return QPixmap(QLatin1String(":/qt-project.org/styles/commonstyle/images/media-volume-muted-16.png"));
-    case SP_LineEditClearButton:
-        return QPixmap(QStringLiteral(":/qt-project.org/styles/commonstyle/images/cleartext-16.png"));
 #endif // QT_NO_IMAGEFORMAT_PNG
     default:
         break;
@@ -5595,6 +5613,8 @@ QIcon QCommonStyle::standardIcon(StandardPixmap standardIcon, const QStyleOption
                                  const QWidget *widget) const
 {
     QIcon icon;
+    const bool rtl = (option && option->direction == Qt::RightToLeft) || (!option && QApplication::isRightToLeft());
+
 #ifdef Q_OS_WIN
     switch (standardIcon) {
     case SP_DriveCDIcon:
@@ -5634,6 +5654,9 @@ QIcon QCommonStyle::standardIcon(StandardPixmap standardIcon, const QStyleOption
             }
         }
         break;
+    case SP_LineEditClearButton:
+        icon = clearTextIcon(rtl);
+        break;
     default:
         break;
     }
@@ -5642,7 +5665,6 @@ QIcon QCommonStyle::standardIcon(StandardPixmap standardIcon, const QStyleOption
 
 #endif
 
-    const bool rtl = (option && option->direction == Qt::RightToLeft) || (!option && QApplication::isRightToLeft());
     if (QApplication::desktopSettingsAware() && !QIcon::themeName().isEmpty()) {
         switch (standardIcon) {
         case SP_DirHomeIcon:
diff --git a/src/widgets/styles/qstyle.qrc b/src/widgets/styles/qstyle.qrc
index c063ec5036..d8c73dd6fa 100644
--- a/src/widgets/styles/qstyle.qrc
+++ b/src/widgets/styles/qstyle.qrc
@@ -1,6 +1,7 @@
 <RCC>
     <qresource prefix="/qt-project.org/styles/commonstyle">
         <file>images/cleartext-16.png</file>
+        <file>images/cleartext-32.png</file>
         <file>images/filelink-16.png</file>
         <file>images/filelink-32.png</file>
         <file>images/filelink-128.png</file>
diff --git a/src/widgets/widgets/qbuttongroup_p.h b/src/widgets/widgets/qbuttongroup_p.h
index 01c0367876..95a72eb4fd 100644
--- a/src/widgets/widgets/qbuttongroup_p.h
+++ b/src/widgets/widgets/qbuttongroup_p.h
@@ -67,7 +67,6 @@ public:
     QList<QAbstractButton *> buttonList;
     QPointer<QAbstractButton> checkedButton;
     void detectCheckedButton();
-    void notifyChecked(QAbstractButton *button);
 
     bool exclusive;
     QHash<QAbstractButton*, int> mapping;
diff --git a/src/widgets/widgets/qlineedit_p.cpp b/src/widgets/widgets/qlineedit_p.cpp
index b852b8991c..6ff40e9c50 100644
--- a/src/widgets/widgets/qlineedit_p.cpp
+++ b/src/widgets/widgets/qlineedit_p.cpp
@@ -323,14 +323,17 @@ QLineEditIconButton::QLineEditIconButton(QWidget *parent)
 void QLineEditIconButton::paintEvent(QPaintEvent *)
 {
     QPainter painter(this);
+    QWindow *window = Q_NULLPTR;
+    if (const QWidget *nativeParent = nativeParentWidget())
+        window = nativeParent->windowHandle();
     // Note isDown should really use the active state but in most styles
     // this has no proper feedback
     QIcon::Mode state = QIcon::Disabled;
     if (isEnabled())
         state = isDown() ? QIcon::Selected : QIcon::Normal;
-    const QPixmap iconPixmap = icon().pixmap(QSize(IconButtonSize, IconButtonSize),
-                                             state, QIcon::Off);
-    QRect pixmapRect = QRect(QPoint(0, 0), iconPixmap.size() / iconPixmap.devicePixelRatio());
+    const QSize iconSize(IconButtonSize, IconButtonSize);
+    const QPixmap iconPixmap = icon().pixmap(window, iconSize, state, QIcon::Off);
+    QRect pixmapRect = QRect(QPoint(0, 0), iconSize);
     pixmapRect.moveCenter(rect().center());
     painter.setOpacity(m_opacity);
     painter.drawPixmap(pixmapRect, iconPixmap);
@@ -422,7 +425,7 @@ QIcon QLineEditPrivate::clearButtonIcon() const
     Q_Q(const QLineEdit);
     QStyleOptionFrame styleOption;
     q->initStyleOption(&styleOption);
-    return QIcon(q->style()->standardPixmap(QStyle::SP_LineEditClearButton, &styleOption, q));
+    return q->style()->standardIcon(QStyle::SP_LineEditClearButton, &styleOption, q);
 }
 
 void QLineEditPrivate::setClearButtonEnabled(bool enabled)
diff --git a/tests/auto/corelib/io/qprocess/tst_qprocess.cpp b/tests/auto/corelib/io/qprocess/tst_qprocess.cpp
index c47e88b0e6..1f0ace0dd3 100644
--- a/tests/auto/corelib/io/qprocess/tst_qprocess.cpp
+++ b/tests/auto/corelib/io/qprocess/tst_qprocess.cpp
@@ -40,8 +40,6 @@
 #include <QtNetwork/QHostInfo>
 #include <stdlib.h>
 
-# include <private/qprocess_p.h>    // only so we get QPROCESS_USE_SPAWN
-
 typedef void (QProcess::*QProcessFinishedSignal1)(int);
 typedef void (QProcess::*QProcessFinishedSignal2)(int, QProcess::ExitStatus);
 typedef void (QProcess::*QProcessErrorSignal)(QProcess::ProcessError);
@@ -321,9 +319,6 @@ void tst_QProcess::startDetached()
 {
     QVERIFY(QProcess::startDetached("testProcessNormal/testProcessNormal",
                                     QStringList() << "arg1" << "arg2"));
-#ifdef QPROCESS_USE_SPAWN
-    QEXPECT_FAIL("", "QProcess cannot detect failure to start when using posix_spawn()", Continue);
-#endif
     QCOMPARE(QProcess::startDetached("nonexistingexe"), false);
 }
 
@@ -706,9 +701,6 @@ void tst_QProcess::waitForFinished()
     QCOMPARE(output.count("\n"), 10*1024);
 
     process.start("blurdybloop");
-#if defined(QPROCESS_USE_SPAWN) && !defined(Q_OS_QNX)
-    QEXPECT_FAIL("", "QProcess cannot detect failure to start when using posix_spawn()", Abort);
-#endif
     QVERIFY(!process.waitForFinished());
     QCOMPARE(process.error(), QProcess::FailedToStart);
 }
@@ -921,6 +913,16 @@ void tst_QProcess::hardExit()
 #endif
 
     QVERIFY2(proc.waitForStarted(), qPrintable(proc.errorString()));
+
+#if defined(Q_OS_QNX)
+    // QNX may lose the kill if it's delivered while the forked process
+    // is doing the exec that morphs it into testProcessEcho.  It's very
+    // unlikely that a normal application would do such a thing.  Make
+    // sure the test doesn't accidentally try to do it.
+    proc.write("A");
+    QVERIFY(proc.waitForReadyRead(5000));
+#endif
+
     proc.kill();
 
     QVERIFY(proc.waitForFinished(5000));
@@ -1524,11 +1526,6 @@ void tst_QProcess::createProcessArgumentsModifier()
 void tst_QProcess::exitCodeTest()
 {
     for (int i = 0; i < 255; ++i) {
-#ifdef QPROCESS_USE_SPAWN
-        // POSIX reserves exit code 127 when using posix_spawn
-        if (i == 127)
-            continue;
-#endif
         QProcess process;
         process.start("testExitCodes/testExitCodes " + QString::number(i));
         QVERIFY(process.waitForFinished(5000));
@@ -1539,9 +1536,6 @@ void tst_QProcess::exitCodeTest()
 
 void tst_QProcess::failToStart()
 {
-#if defined(QPROCESS_USE_SPAWN) && !defined(Q_OS_QNX)
-    QSKIP("QProcess cannot detect failure to start when using posix_spawn()");
-#endif
     qRegisterMetaType<QProcess::ProcessError>("QProcess::ProcessError");
     qRegisterMetaType<QProcess::ExitStatus>("QProcess::ExitStatus");
     qRegisterMetaType<QProcess::ProcessState>("QProcess::ProcessState");
@@ -1612,9 +1606,6 @@ void tst_QProcess::failToStart()
 
 void tst_QProcess::failToStartWithWait()
 {
-#if defined(QPROCESS_USE_SPAWN) && !defined(Q_OS_QNX)
-    QSKIP("QProcess cannot detect failure to start when using posix_spawn()");
-#endif
     qRegisterMetaType<QProcess::ProcessError>("QProcess::ProcessError");
     qRegisterMetaType<QProcess::ExitStatus>("QProcess::ExitStatus");
 
@@ -1644,9 +1635,6 @@ void tst_QProcess::failToStartWithWait()
 
 void tst_QProcess::failToStartWithEventLoop()
 {
-#if defined(QPROCESS_USE_SPAWN) && !defined(Q_OS_QNX)
-    QSKIP("QProcess cannot detect failure to start when using posix_spawn()");
-#endif
     qRegisterMetaType<QProcess::ProcessError>("QProcess::ProcessError");
     qRegisterMetaType<QProcess::ExitStatus>("QProcess::ExitStatus");
 
@@ -1933,9 +1921,6 @@ void tst_QProcess::waitForReadyReadForNonexistantProcess()
     QVERIFY(!process.waitForReadyRead()); // used to crash
     process.start("doesntexist");
     QVERIFY(!process.waitForReadyRead());
-#if defined(QPROCESS_USE_SPAWN) && !defined(Q_OS_QNX)
-    QEXPECT_FAIL("", "QProcess cannot detect failure to start when using posix_spawn()", Abort);
-#endif
     QCOMPARE(errorSpy.count(), 1);
     QCOMPARE(errorSpy.at(0).at(0).toInt(), 0);
     QCOMPARE(errorSpy2.count(), 1);
@@ -2303,9 +2288,6 @@ void tst_QProcess::setNonExistentWorkingDirectory()
     // while on Unix with fork it's relative to the child's (with posix_spawn, it could be either).
     process.start(QFileInfo("testSetWorkingDirectory/testSetWorkingDirectory").absoluteFilePath());
     QVERIFY(!process.waitForFinished());
-#ifdef QPROCESS_USE_SPAWN
-    QEXPECT_FAIL("", "QProcess cannot detect failure to start when using posix_spawn()", Continue);
-#endif
     QCOMPARE(int(process.error()), int(QProcess::FailedToStart));
 
 #ifdef Q_OS_UNIX
diff --git a/tests/auto/widgets/kernel/qwidget_window/tst_qwidget_window.cpp b/tests/auto/widgets/kernel/qwidget_window/tst_qwidget_window.cpp
index cd8bce173b..200c8a6ced 100644
--- a/tests/auto/widgets/kernel/qwidget_window/tst_qwidget_window.cpp
+++ b/tests/auto/widgets/kernel/qwidget_window/tst_qwidget_window.cpp
@@ -41,6 +41,8 @@
 #include <qboxlayout.h>
 #include <qtabwidget.h>
 #include <qlabel.h>
+#include <qmainwindow.h>
+#include <qtoolbar.h>
 #include <private/qwindow_p.h>
 
 static inline void setFrameless(QWidget *w)
@@ -94,6 +96,8 @@ private slots:
     void tst_move_count();
 
     void tst_eventfilter_on_toplevel();
+
+    void QTBUG_50561_QCocoaBackingStore_paintDevice_crash();
 };
 
 void tst_QWidget_window::initTestCase()
@@ -790,5 +794,46 @@ void tst_QWidget_window::tst_eventfilter_on_toplevel()
     QTRY_COMPARE(filter.eventCount, 1);
 }
 
+class ApplicationStateSaver
+{
+public:
+    ApplicationStateSaver()
+    {
+        QApplication::setAttribute(Qt::AA_NativeWindows, true);
+        QApplication::setQuitOnLastWindowClosed(false);
+    }
+
+    ~ApplicationStateSaver()
+    {
+        QApplication::setAttribute(Qt::AA_NativeWindows, false);
+        QApplication::setQuitOnLastWindowClosed(true);
+    }
+};
+
+void tst_QWidget_window::QTBUG_50561_QCocoaBackingStore_paintDevice_crash()
+{
+    // Keep application state clean if testcase fails
+    ApplicationStateSaver as;
+
+    QMainWindow w;
+    w.addToolBar(new QToolBar(&w));
+    w.show();
+    QTest::qWaitForWindowExposed(&w);
+
+    // Simulate window system close
+    QCloseEvent *e = new QCloseEvent;
+    e->accept();
+    qApp->postEvent(w.windowHandle(), e);
+    qApp->processEvents();
+
+    // Show again
+    w.show();
+    qApp->processEvents();
+
+    // No crash, all good.
+    // Wrap up and leave
+    w.close();
+}
+
 QTEST_MAIN(tst_QWidget_window)
 #include "tst_qwidget_window.moc"
diff --git a/tools/configure/configureapp.cpp b/tools/configure/configureapp.cpp
index 46959653db..466be701c4 100644
--- a/tools/configure/configureapp.cpp
+++ b/tools/configure/configureapp.cpp
@@ -221,7 +221,7 @@ Configure::Configure(int& argc, char** argv) : verbose(0)
     dictionary[ "BUILD" ]           = "debug";
     dictionary[ "BUILDALL" ]        = "auto"; // Means yes, but not explicitly
     dictionary[ "FORCEDEBUGINFO" ]  = "no";
-    dictionary[ "OPTIMIZED_TOOLS" ] = "no";
+    dictionary[ "RELEASE_TOOLS" ]   = "no";
 
     dictionary[ "BUILDTYPE" ]      = "none";
 
@@ -3494,6 +3494,11 @@ void Configure::generateQConfigPri()
                          << "QT_GCC_PATCH_VERSION = " << dictionary["QT_GCC_PATCH_VERSION"] << endl;
         }
 
+        if (dictionary.value("XQMAKESPEC").startsWith("wince")) {
+            configStream << "#Qt for Windows CE c-runtime deployment" << endl
+                         << "QT_CE_C_RUNTIME = " << formatPath(dictionary["CE_CRT"]) << endl;
+        }
+
         if (!configStream.flush())
             dictionary[ "DONE" ] = "error";
     }