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

Conflicts: config_help.txt configure mkspecs/features/uikit/sdk.prf src/corelib/global/qhooks.cpp src/corelib/io/qfilesystemwatcher.cpp src/corelib/io/qlockfile_unix.cpp src/corelib/tools/qalgorithms.h src/gui/kernel/qwindowsysteminterface.h src/gui/text/qtextdocument_p.cpp src/network/access/access.pri src/network/access/qnetworkaccessmanager.cpp src/network/access/qnetworkreplynsurlconnectionimpl.mm src/src.pro src/testlib/qtestcase.cpp src/widgets/kernel/qwidgetbackingstore_p.h src/widgets/styles/qwindowscestyle.cpp src/widgets/styles/qwindowsmobilestyle.cpp tests/auto/corelib/io/qdiriterator/qdiriterator.pro tests/auto/corelib/io/qfileinfo/qfileinfo.pro tests/auto/gui/kernel/qwindow/BLACKLIST tests/auto/widgets/dialogs/qfilesystemmodel/tst_qfilesystemmodel.cpp tools/configure/configureapp.cpp Change-Id: Ibf7fb9c8cf263a810ade82f821345d0725c57c67
2016-06-13 09:01:02 +02:00 · 2016-06-13 09:01:02 +02:00 · 511790fd1a
commit 511790fd1a
parent 1542d8881f cbe332405a
252 changed files with 3892 additions and 2559 deletions
--- a/config.tests/common/atomicfptr/atomicfptr.cpp
+++ b/config.tests/common/atomicfptr/atomicfptr.cpp
@ -0,0 +1,58 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 Intel Corporation.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the FOO module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL21$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://www.qt.io/contact-us.
+**
+** 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 or version 3 as published by the Free
+** Software Foundation and appearing in the file LICENSE.LGPLv21 and
+** LICENSE.LGPLv3 included in the packaging of this file. Please review the
+** following information to ensure the GNU Lesser General Public License
+** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** As a special exception, The Qt Company gives you certain additional
+** rights. These rights are described in The Qt Company LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <atomic>
+
+typedef void (*fptr)(int);
+typedef std::atomic<fptr> atomicfptr;
+
+void testfunction(int) { }
+
+void test(volatile atomicfptr &a)
+{
+    fptr v = a.load(std::memory_order_acquire);
+    while (!a.compare_exchange_strong(v, &testfunction,
+                                      std::memory_order_acq_rel,
+                                      std::memory_order_acquire)) {
+        v = a.exchange(&testfunction);
+    }
+
+    a.store(&testfunction, std::memory_order_release);
+}
+
+int main(int, char **)
+{
+    atomicfptr fptr(testfunction);
+    test(fptr);
+    return 0;
+}
--- a/config.tests/common/atomicfptr/atomicfptr.pro
+++ b/config.tests/common/atomicfptr/atomicfptr.pro
@ -0,0 +1,3 @@
+SOURCES = atomicfptr.cpp
+CONFIG += c++11 console
+CONFIG -= qt app_bundle
--- a/config.tests/common/atomicfptr/icc2016_mac.diff
+++ b/config.tests/common/atomicfptr/icc2016_mac.diff
@ -0,0 +1,18 @@
+Patch for fixing std::atomic support for function pointers for the Intel
+Composer XE 2016 (compiler version 16.0).
+
+To apply:
+  cd /opt/intel/compilers_and_libraries_2016/mac/include
+  sudo patch -p1 < /path-to-this-file/icc2016_mac.diff
+
+--- include/stdatomic.h.orig 2015-08-28 15:05:13.000000000 -0700
+++ include/stdatomic.h      2015-08-28 15:19:25.000000000 -0700
+@@ -451,7 +451,7 @@
+     }
+     _STRONG_INLINE atomic() _DEFAULTED
+     _STRONG_INLINE _CONSTEXPR atomic(T* _Ptr)
+-    : atomic_address(_Ptr)
+    : atomic_address((void*)_Ptr)
+     {
+     }
+     _STRONG_INLINE T* operator+=(ptrdiff_t _V) volatile
--- a/config.tests/common/atomicfptr/qnx66.txt
+++ b/config.tests/common/atomicfptr/qnx66.txt
@ -0,0 +1,3 @@
+Patch is available from QNX. Please see
+
+http://www.qnx.com/download/feature.html?programid=27555
--- a/config.tests/qpa/eglfs-egldevice/eglfs-egldevice.pro
+++ b/config.tests/qpa/eglfs-egldevice/eglfs-egldevice.pro
@ -6,7 +6,10 @@ for(p, QMAKE_LIBDIR_EGL) {

 INCLUDEPATH += $$QMAKE_INCDIR_EGL
 LIBS += $$QMAKE_LIBS_EGL
-
-LIBS += -ldrm
-
+CONFIG += link_pkgconfig
+!contains(QT_CONFIG, no-pkg-config) {
+    PKGCONFIG += libdrm
+} else {
+    LIBS += -ldrm
+}
 CONFIG -= qt
--- a/config.tests/unix/clock-gettime/clock-gettime.cpp
+++ b/config.tests/unix/clock-gettime/clock-gettime.cpp
@ -42,7 +42,7 @@

 int main(int, char **)
 {
-#if defined(_POSIX_TIMERS) && (_POSIX_TIMERS > 0)
+#if (defined(_POSIX_TIMERS) && (_POSIX_TIMERS > 0)) || defined(__OpenBSD__)
    timespec ts;
    clock_gettime(CLOCK_REALTIME, &ts);
 #else
--- a/config.tests/unix/dlopen/dlopen.cpp
+++ b/config.tests/unix/dlopen/dlopen.cpp
--- a/config.tests/unix/dlopen/dlopen.pro
+++ b/config.tests/unix/dlopen/dlopen.pro
@ -0,0 +1,2 @@
+SOURCES = $$PWD/dlopen.cpp
+CONFIG -= qt dylib
--- a/config.tests/unix/iconv/iconv.pro
+++ b/config.tests/unix/iconv/iconv.pro
@ -1,3 +1,3 @@
 SOURCES = iconv.cpp
 CONFIG -= qt dylib
-mac|mingw|qnx|haiku:LIBS += -liconv
+mac|mingw|openbsd|qnx|haiku:LIBS += -liconv
--- a/config.tests/unix/libdl/libdl.pro
+++ b/config.tests/unix/libdl/libdl.pro
@ -1,3 +1,2 @@
-SOURCES = libdl.cpp
-CONFIG -= qt dylib
-!qnx: LIBS += -ldl
+include(../dlopen/dlopen.pro)
+LIBS += -ldl
--- a/config.tests/unix/mysql/mysql.cpp
+++ b/config.tests/unix/mysql/mysql.cpp
@ -41,5 +41,6 @@

 int main(int, char **)
 {
+    mysql_get_client_version();
    return 0;
 }
--- a/config.tests/unix/nis/nis.cpp
+++ b/config.tests/unix/nis/nis.cpp
@ -1,50 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the config.tests of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#include <sys/types.h>
-#include <rpc/rpc.h>
-#include <rpcsvc/ypclnt.h>
-#include <rpcsvc/yp_prot.h>
-
-int main(int, char **)
-{
-    char *d;
-    yp_get_default_domain(&d);
-    return 0;
-}
--- a/config.tests/unix/nis/nis.pro
+++ b/config.tests/unix/nis/nis.pro
@ -1,4 +0,0 @@
-SOURCES = nis.cpp
-CONFIG -= qt dylib
-solaris-*:LIBS += -lnsl
-else:LIBS += $$QMAKE_LIBS_NIS
--- a/config.tests/unix/objcopy/objcopy.pro
+++ b/config.tests/unix/objcopy/objcopy.pro
@ -1,4 +1,7 @@
 SOURCES = objcopy.cpp
 CONFIG -= qt
+TARGET = objcopytest

-QMAKE_POST_LINK += $$QMAKE_OBJCOPY --only-keep-debug objcopy objcopy.debug && $$QMAKE_OBJCOPY --strip-debug objcopy && $$QMAKE_OBJCOPY --add-gnu-debuglink=objcopy.debug objcopy
+load(resolve_target)
+
+QMAKE_POST_LINK += $$QMAKE_OBJCOPY --only-keep-debug $$QMAKE_RESOLVED_TARGET objcopytest.debug && $$QMAKE_OBJCOPY --strip-debug $$QMAKE_RESOLVED_TARGET && $$QMAKE_OBJCOPY --add-gnu-debuglink=objcopytest.debug $$QMAKE_RESOLVED_TARGET
--- a/config.tests/unix/openssl/openssl.cpp
+++ b/config.tests/unix/openssl/openssl.cpp
@ -43,6 +43,12 @@
 #  error "OpenSSL >= 0.9.7 is required"
 #endif

+#include <openssl/ssl.h>
+
+#if OPENSSL_VERSION_NUMBER-0 >= 0x10002000L && !defined(OPENSSL_NO_EC) && !defined(SSL_CTRL_SET_CURVES)
+#  error "OpenSSL was reported as >= 1.0.2 but is missing required features, possibly it's libressl which is unsupported"
+#endif
+
 int main()
 {
 }
--- a/config_help.txt
+++ b/config_help.txt
@ -258,9 +258,6 @@ Additional options:
    -silent .............. Reduce the build output so that warnings and errors
                           can be seen more easily.

-    -no-nis .............. Do not compile NIS support.
- *  -nis ................. Compile NIS support.
-
    -no-cups ............. Do not compile CUPS support.
 *  -cups ................ Compile CUPS support.
                           Requires cups/cups.h and libcups.so.2.
--- a/67
+++ b/67
@ -707,7 +707,6 @@ CFG_LIBUDEV=auto
 CFG_LIBINPUT=auto
 CFG_EVDEV=auto
 CFG_TSLIB=auto
-CFG_NIS=auto
 CFG_CUPS=auto
 CFG_ICONV=auto
 CFG_DBUS=auto
@ -844,7 +843,7 @@ QT_QPA_DEFAULT_PLATFORM=
 # Android vars
 CFG_DEFAULT_ANDROID_NDK_ROOT=$ANDROID_NDK_ROOT
 CFG_DEFAULT_ANDROID_SDK_ROOT=$ANDROID_SDK_ROOT
-CFG_DEFAULT_ANDROID_PLATFORM=android-9
+CFG_DEFAULT_ANDROID_PLATFORM=android-16
 CFG_DEFAULT_ANDROID_TARGET_ARCH=armeabi-v7a
 CFG_DEFAULT_ANDROID_NDK_TOOLCHAIN_VERSION=4.9
 CFG_DEFAULT_ANDROID_NDK_HOST=$ANDROID_NDK_HOST
@ -1895,13 +1894,6 @@ while [ "$#" -gt 0 ]; do
            UNKNOWN_OPT=yes
        fi
        ;;
-    nis)
-        if [ "$VAL" = "yes" ] || [ "$VAL" = "no" ]; then
-            CFG_NIS="$VAL"
-        else
-            UNKNOWN_OPT=yes
-        fi
-        ;;
    openssl)
        if [ "$VAL" = "yes" ] || [ "$VAL" = "no" ]; then
            CFG_OPENSSL="$VAL"
@ -2206,10 +2198,17 @@ if [ -z "$PLATFORM" ]; then
        PLATFORM=ultrix-g++
        ;;
     FreeBSD:*)
-        PLATFORM=freebsd-clang
-        PLATFORM_NOTES="
-            - Also available for FreeBSD: freebsd-icc
-        "
+        if [ "$(uname -r | cut -d. -f1)" -ge 10 ]; then
+            PLATFORM=freebsd-clang
+            PLATFORM_NOTES="
+                - Also available for FreeBSD: freebsd-g++
+            "
+        else
+            PLATFORM=freebsd-g++
+            PLATFORM_NOTES="
+                - Also available for FreeBSD: freebsd-clang
+            "
+        fi
        ;;
     OpenBSD:*)
        PLATFORM=openbsd-g++
@ -2534,6 +2533,9 @@ if [ "$XPLATFORM_ANDROID" = "yes" ]; then
    if [ "$CFG_DBUS" = "auto" ]; then
        CFG_DBUS="no"
    fi
+    if [ "$CFG_EGLFS" = "auto" ]; then
+        CFG_EGLFS="no"
+    fi
    if [ -z "$CFG_DEFAULT_ANDROID_NDK_HOST" ]; then
        case $PLATFORM in
        linux-*)
@ -2727,8 +2729,7 @@ if [ "$XPLATFORM_IOS" = "yes" ] || [ "$XPLATFORM_TVOS" = "yes" ]; then
    # If the user passes -sdk on the command line we build a SDK-specific Qt build.
    # Otherwise we build a joined simulator and device build, which is the default.
    if [ -z "$OPT_MAC_SDK" ]; then
-         QT_CONFIG="$QT_CONFIG build_all"
-         QTCONFIG_CONFIG="$QTCONFIG_CONFIG simulator_and_device"
+         QT_CONFIG="$QT_CONFIG build_all simulator_and_device"
    fi
 fi

@ -3758,6 +3759,14 @@ else
    CFG_STD_ATOMIC64=no
 fi

+# Detect whether std::atomic works for function pointers -- some implementations are buggy
+if ! compileTest common/atomicfptr "std::atomic for function pointers"; then
+    echo "ERROR: detected a std::atomic implementation that fails for function pointers."
+    echo "Please apply the patch corresponding to your Standard Library vendor, found in"
+    echo "  $relpath/config.tests/common/atomicfptr"
+    exit 101
+fi
+
 # detect sse2 support
 CFG_SSE_LIST=
 if [ "${CFG_SSE2}" = "auto" ]; then
@ -4060,9 +4069,13 @@ if [ "$CFG_LIBPNG" = "auto" ]; then
 fi

 # detect dl
-if ! compileTest unix/libdl "libdl"; then
-    QMakeVar add DEFINES QT_NO_DYNAMIC_LIBRARY
+if compileTest unix/dlopen "dlopen"; then
    QMAKE_CONFIG="$QMAKE_CONFIG no-libdl"
+else
+    if ! compileTest unix/libdl "libdl"; then
+        QMAKE_CONFIG="$QMAKE_CONFIG no-libdl"
+        QMakeVar add DEFINES QT_NO_DYNAMIC_LIBRARY
+    fi
 fi

 if [ "$CFG_EGLFS" = "yes" ]; then
@ -4304,23 +4317,6 @@ for _SQLDR in $CFG_SQL_AVAILABLE; do
        esac
 done

-# auto-detect NIS support
-if [ "$CFG_NIS" != "no" ]; then
-    if compileTest unix/nis "NIS"; then
-        CFG_NIS=yes
-    else
-        if [ "$CFG_NIS" = "yes" ] && [ "$CFG_CONFIGURE_EXIT_ON_ERROR" = "yes" ]; then
-            echo "NIS support cannot be enabled due to functionality tests!"
-            echo " Turn on verbose messaging (-v) to $0 to see the final report."
-            echo " If you believe this message is in error you may use the continue"
-            echo " switch (-continue) to $0 to continue."
-            exit 101
-        else
-            CFG_NIS=no
-        fi
-    fi
-fi
-
 # auto-detect CUPS support
 if [ "$CFG_CUPS" != "no" ]; then
    if compileTest unix/cups "Cups"; then
@ -5685,7 +5681,6 @@ if [ "$CFG_SYSTEM_ZLIB" = "yes" ]; then
 fi

 [ "$CFG_MTDEV" = "yes" ] && QT_CONFIG="$QT_CONFIG mtdev"
-[ "$CFG_NIS" = "yes" ] && QT_CONFIG="$QT_CONFIG nis"
 [ "$CFG_CUPS" = "yes" ] && QT_CONFIG="$QT_CONFIG cups"
 [ "$CFG_ICONV" != "no" ] && QT_CONFIG="$QT_CONFIG iconv"
 [ "$CFG_ICONV" = "sun" ] && QT_CONFIG="$QT_CONFIG sun-libiconv"
@ -5953,7 +5948,6 @@ QMakeVar set sql-drivers "$SQL_DRIVERS"
 [ "$CFG_INOTIFY" = "no" ]    && QCONFIG_FLAGS="$QCONFIG_FLAGS QT_NO_INOTIFY"
 [ "$CFG_EVENTFD" = "no" ]    && QCONFIG_FLAGS="$QCONFIG_FLAGS QT_NO_EVENTFD"
 [ "$CFG_CLOEXEC" = "yes" ]   && QCONFIG_FLAGS="$QCONFIG_FLAGS QT_THREADSAFE_CLOEXEC=1"
-[ "$CFG_NIS" = "no" ]        && QCONFIG_FLAGS="$QCONFIG_FLAGS QT_NO_NIS"
 [ "$CFG_OPENSSL" = "no" ]    && QCONFIG_FLAGS="$QCONFIG_FLAGS QT_NO_OPENSSL"
 [ "$CFG_OPENSSL" = "linked" ]&& QCONFIG_FLAGS="$QCONFIG_FLAGS QT_LINKED_OPENSSL"
 [ "$CFG_OPENSSL" = "no" ] && [ "$CFG_SECURETRANSPORT" = "no" ] && QCONFIG_FLAGS="$QCONFIG_FLAGS QT_NO_SSL"
@ -6407,7 +6401,6 @@ report_support "    libproxy.............." "$CFG_LIBPROXY"
 report_support "    OpenSSL .............." "$CFG_OPENSSL" yes "loading libraries at run-time" linked "linked to the libraries"
 [ "$XPLATFORM_MAC" = "yes" ] && \
    report_support "    SecureTransport ......" "$CFG_SECURETRANSPORT"
-report_support "  NIS ...................." "$CFG_NIS"
 report_support "  OpenGL / OpenVG:"
 report_support "    EGL .................." "$CFG_EGL"
 report_support "    OpenGL ..............." "$CFG_OPENGL" yes "Desktop OpenGL" es2 "OpenGL ES 2.0+"
--- a/dist/changes-5.6.1
+++ b/dist/changes-5.6.1
@ -0,0 +1,165 @@
+Qt 5.6.1 is a bug-fix release. It maintains both forward and backward
+compatibility (source and binary) with Qt 5.6.0.
+
+For more details, refer to the online documentation included in this
+distribution. The documentation is also available online:
+
+  https://doc.qt.io/qt-5/
+
+The Qt version 5.6 series is binary compatible with the 5.5.x series.
+Applications compiled for 5.5 will continue to run with 5.6.
+
+Some of the changes listed in this file include issue tracking numbers
+corresponding to tasks in the Qt Bug Tracker:
+
+  https://bugreports.qt.io/
+
+Each of these identifiers can be entered in the bug tracker to obtain more
+information about a particular change.
+
+****************************************************************************
+*                   Important Behavior Changes                             *
+****************************************************************************
+
+ - Support for DirectFB is disabled by default, due to lack of
+   development in upstream. To enable the platform plugin, pass the
+   -directfb option to configure.
+ - [QTBUG-44964] The new X event compression feature that was added in 5.6.0
+   no longer applies to motion events from drawing tablets.
+
+configure & build system
+------------------------
+
+ - The configure -D/-I/-L/-l/-R options do not affect the build of Qt's
+   host tools any more when cross-building. While this usually improves
+   the chances of a build succeeding, it may also require adjustments.
+
+qmake
+-----
+
+ - [Unix] Paths passed to configure -R are not automatically used by 3rd
+   party projects any more. Use QMAKE_RPATHDIR if your project explicitly
+   depends on external libraries. Note that this is not needed for Qt or
+   its transitive dependencies.
+ - Expansions of ${QMAKE_FILE_IN_BASE} and ${QMAKE_FILE_OUT_BASE} in extra
+   compilers are now automatically quoted.
+
+****************************************************************************
+*                          Library                                         *
+****************************************************************************
+
+QtCore
+------
+
+ - QObject:
+   * [QTBUG-52542] If the compiler supports variadic templates, functors
+     connected to signals will no longer be copied each time the signal is
+     emitted.
+
+ - QRect:
+   * Fixed integer overflow in center(). This fixes the result for some
+     corner-cases such as a 1x1 rectangle at (INT_MIN, INT_MIN), for which the
+     previous implementation could return anything (due to invoking undefined
+     behavior), but commonly returned (0, 0).
+
+ - QStringRef:
+   * Fixed relational operators against (const char*) to return the correct
+     result.
+
+QtGui
+-----
+
+ - [QTBUG-50199] QWheelEvent::phase() now returns zero rather than
+   Qt::ScrollUpdate when the wheel event comes from an actual non-emulated
+   mouse wheel, and the QT_ENABLE_MOUSE_WHEEL_TRACKING environment variable
+   is set.
+
+- Image:
+   * [QTBUG-50745] Fixed possible crash in QImage::pixel() for mono or indexed
+     images.
+
+QtWidgets
+---------
+
+ - Dialogs:
+   * [QTBUG-51148] Fixed font dialog support for fonts with a non-existent
+     family name and/or pixel size.
+
+ - QHeaderView:
+   * [QTBUG-50171] Fixed a repainting issue when items had been reordered.
+
+ - QListWidget:
+   * [QTBUG-15741] Fixed a bug that caused the default drop action to be
+     ignored when using icon mode.
+
+
+****************************************************************************
+*                      Platform-specific Changes                           *
+****************************************************************************
+
+Android
+-------
+
+ - The navigation bar is now hidden only on Android API level 19 and above.
+
+OS X
+----
+ - [QTBUG-50262] QStandardPaths now returns the correct display name for the
+   download folder.
+ - [QTBUG-7000] QMacPrintEngine now really sets the printer resolution.
+ - [QTBUG-48138] QPinchGesture on OS X now behaves like on other platforms:
+   totalScaleFactor is the magnitude of the pinch and scaleFactor is the delta
+   for the current event.
+
+Windows
+-------
+
+ - Text:
+   * [QTBUG-18711] Fixed disabling hints for application fonts.
+     For example, when automatic scaling by device pixel ratio is in effect.
+   * [QTBUG-47141] Made it possible to disable antialiasing for text when
+     drawing into images.
+
+X11/XCB
+-------
+
+ - [QTBUG-49071] Fixed failure to deliver focusIn events on hide/show.
+
+****************************************************************************
+*                                Tools                                     *
+****************************************************************************
+
+configure & build system
+------------------------
+
+ - [QTBUG-11545][Windows] Added missing -pch/-no-pch options to configure.exe.
+ - [QTBUG-37952][Apple] configure -separate-debug-info is now supported.
+ - [QTBUG-47313][QTBUG-47639] Fixed builds with "debug" and/or "release" in
+   the build path's name.
+ - [QTBUG-51621][Unix] Fixed transitive dependencies on non-Qt libraries.
+ - [QTBUG-51644][QTBUG-53017] Fixed cross-builds which use a host compiler
+   which is significantly different from the target compiler.
+ - [QTBUG-52578][QNX] Unified some defaults between the Unix and Windows
+   configures.
+ - [Unix] configure -R now supports paths relative to -libdir.
+ - [Android@Windows] Added missing -android-ndk-host option to configure.exe.
+ - [MinGW] Fixed -release -force-debug-info builds actually being neither.
+ - [WinCE] Fixed (Open)SSL detection.
+ - Fixed builds with static libc.
+
+qmake
+-----
+
+ - [QTBUG-34182] Fixed UTF-8 BOM breaking dependency calculation.
+ - [QTBUG-38802][WinRT] Capabilities needed by Qt are now automatically
+   added to the manifest.
+ - [QTBUG-50924][WEC7][VS] Fixed deployment of Qt.
+ - [QTBUG-51775][Unix@Windows] Fixed installation of target.targets when
+   cross-building.
+ - [QTBUG-51782] Fixed simultaneous use of the separate_debug_info and
+   no_plugin_name_prefix CONFIG flags.
+ - [QTBUG-52008] qmake-generated Visual Studio projects now automatically
+   invoke windeployqt by default.
+ - [QTBUG-52998] Restored use of -P option when invoking lex.
+ - The expansions ${QMAKE_FILE_IN_EXT}, ${QMAKE_FILE_IN_NAME}, and
+   ${QMAKE_FILE_OUT_PATH} are now understood in extra compilers.
--- a/examples/corelib/mimetypes/mimetypes.pro
+++ b/examples/corelib/mimetypes/mimetypes.pro
@ -1,3 +1,4 @@
 TEMPLATE = subdirs

-SUBDIRS = mimetypebrowser
+qtHaveModule(widgets): SUBDIRS += \
+    mimetypebrowser
--- a/examples/network/http/httpwindow.cpp
+++ b/examples/network/http/httpwindow.cpp
@ -56,9 +56,9 @@
 #include "ui_authenticationdialog.h"

 #ifndef QT_NO_SSL
-static const char defaultUrl[] = "https://qt-project.org/";
+static const char defaultUrl[] = "https://www.qt.io/";
 #else
-static const char defaultUrl[] = "http://qt-project.org/";
+static const char defaultUrl[] = "http://www.qt.io/";
 #endif
 static const char defaultFileName[] = "index.html";

@ -106,7 +106,7 @@ HttpWindow::HttpWindow(QWidget *parent)
    connect(urlLineEdit, &QLineEdit::textChanged,
            this, &HttpWindow::enableDownloadButton);
    formLayout->addRow(tr("&URL:"), urlLineEdit);
-    QString downloadDirectory = QStandardPaths::writableLocation(QStandardPaths::DownloadLocation);
+    QString downloadDirectory = QStandardPaths::writableLocation(QStandardPaths::TempLocation);
    if (downloadDirectory.isEmpty() || !QFileInfo(downloadDirectory).isDir())
        downloadDirectory = QDir::currentPath();
    downloadDirectoryLineEdit->setText(QDir::toNativeSeparators(downloadDirectory));
--- a/examples/opengl/legacy/shared/qtlogo.h
+++ b/examples/opengl/legacy/shared/qtlogo.h
@ -54,7 +54,8 @@
 #include <QObject>
 #include <QColor>

-class QOpenGLFunctions_1_1;
+QT_FORWARD_DECLARE_CLASS(QOpenGLFunctions_1_1)
+
 class Patch;
 struct Geometry;

--- a/examples/widgets/mac/qmaccocoaviewcontainer/qmaccocoaviewcontainer.pro
+++ b/examples/widgets/mac/qmaccocoaviewcontainer/qmaccocoaviewcontainer.pro
@ -5,3 +5,6 @@ LIBS += -framework AppKit

 QT += widgets

+# install
+target.path = $$[QT_INSTALL_EXAMPLES]/widgets/mac/qmaccocoaviewcontainer
+INSTALLS += target
--- a/examples/widgets/mac/qmacnativewidget/qmacnativewidget.pro
+++ b/examples/widgets/mac/qmacnativewidget/qmacnativewidget.pro
@ -5,3 +5,7 @@ LIBS += -framework AppKit

 QT += widgets
 #QT += widgets-private gui-private core-private
+
+# install
+target.path = $$[QT_INSTALL_EXAMPLES]/widgets/mac/qmacnativewidget
+INSTALLS += target
--- a/mkspecs/android-g++/qmake.conf
+++ b/mkspecs/android-g++/qmake.conf
@ -168,13 +168,6 @@ QMAKE_STRIP             =

 QMAKE_RANLIB            = $$NDK_TOOLCHAIN_PATH/bin/$$NDK_TOOLS_PREFIX-ranlib

-QMAKE_INCDIR            = $$ANDROID_SOURCES_CXX_STL_INCDIR $$QMAKE_ANDROID_PLATFORM_INCDIR
-QMAKE_LIBDIR            = $$ANDROID_SOURCES_CXX_STL_LIBDIR $$QMAKE_ANDROID_PLATFORM_LIBDIR $$LIBGCC_PATH
-QMAKE_INCDIR_X11        =
-QMAKE_LIBDIR_X11        =
-QMAKE_INCDIR_OPENGL     = $$QMAKE_ANDROID_PLATFORM_INCDIR
-QMAKE_LIBDIR_OPENGL     = $$QMAKE_ANDROID_PLATFORM_LIBDIR
-
 equals(ANDROID_TARGET_ARCH, armeabi)|equals(ANDROID_TARGET_ARCH, armeabi-v7a): \
    LIBGCC_PATH_FULL = $$system("$$QMAKE_CC -mthumb-interwork -print-libgcc-file-name")
 else: \
@ -182,20 +175,19 @@ else: \

 LIBGCC_PATH             = $$dirname(LIBGCC_PATH_FULL)

+QMAKE_INCDIR            = $$ANDROID_SOURCES_CXX_STL_INCDIR $$QMAKE_ANDROID_PLATFORM_INCDIR
+QMAKE_LIBDIR            = $$ANDROID_SOURCES_CXX_STL_LIBDIR $$QMAKE_ANDROID_PLATFORM_LIBDIR $$LIBGCC_PATH
+QMAKE_INCDIR_X11        =
+QMAKE_LIBDIR_X11        =
+QMAKE_INCDIR_OPENGL     = $$QMAKE_ANDROID_PLATFORM_INCDIR
+QMAKE_LIBDIR_OPENGL     = $$QMAKE_ANDROID_PLATFORM_LIBDIR
+
 QMAKE_LINK              = $$QMAKE_CXX
 QMAKE_LINK_SHLIB        = $$QMAKE_CXX
 QMAKE_LFLAGS            = --sysroot=$$ANDROID_PLATFORM_ROOT_PATH
 QMAKE_RPATHLINK         = $$QMAKE_ANDROID_PLATFORM_LIBDIR
 QMAKE_LFLAGS_APP        = -Wl,--no-undefined -Wl,-z,noexecstack -shared
 QMAKE_LFLAGS_SHLIB      = -Wl,--no-undefined -Wl,-z,noexecstack -shared
-
-contains(NDK_ROOT, ".*r6")|contains(NDK_ROOT, ".*r5.*") {
-    !equals(ANDROID_PLATFORM, android-4):!equals(ANDROID_PLATFORM, android-5):!equals(ANDROID_PLATFORM, android-8) {
-        warning("Your NDK version is outdated. A workaround is enabled. Consider updating your NDK (workarounds are required until r6(a))")
-        QMAKE_LFLAGS_SHLIB += $$QMAKE_ANDROID_PLATFORM_LIBDIR/crtbegin_so.o $$QMAKE_ANDROID_PLATFORM_LIBDIR/crtend_so.o
-    }
-}
-
 QMAKE_LFLAGS_PLUGIN     = $$QMAKE_LFLAGS_SHLIB
 QMAKE_LFLAGS_NOUNDEF    = -Wl,--no-undefined
 QMAKE_LFLAGS_RPATH      = -Wl,-rpath=
--- a/mkspecs/features/qml_plugin.prf
+++ b/mkspecs/features/qml_plugin.prf
@ -15,7 +15,9 @@ TEMPLATE = lib
 CONFIG += plugin

 if(win32|mac):!macx-xcode {
-    contains(QT_CONFIG, debug_and_release): CONFIG += debug_and_release build_all
+    contains(QT_CONFIG, simulator_and_device): CONFIG += iphonesimulator_and_iphoneos
+    contains(QT_CONFIG, debug_and_release): CONFIG += debug_and_release
+    contains(QT_CONFIG, build_all): CONFIG += build_all
 }

 CONFIG += relative_qt_rpath  # Qt's QML plugins should be relocatable
--- a/mkspecs/features/qpa/basicunixfontdatabase.prf
+++ b/mkspecs/features/qpa/basicunixfontdatabase.prf
@ -1,3 +1,3 @@
 contains(QT_CONFIG, system-freetype) {
-    LIBS += -lfreetype
+    LIBS_PRIVATE += -lfreetype
 }
--- a/mkspecs/features/qpa/genericunixfontdatabase.prf
+++ b/mkspecs/features/qpa/genericunixfontdatabase.prf
@ -1,7 +1,7 @@
 CONFIG += qpa/basicunixfontdatabase
 contains(QT_CONFIG, fontconfig) {
    DEFINES += Q_FONTCONFIGDATABASE
-    LIBS += -lfontconfig
+    LIBS_PRIVATE += -lfontconfig
 } else:!android {
    fonts.path = $$[QT_INSTALL_LIBS]/fonts
    fonts.files = $$QT_SOURCE_TREE/lib/fonts/*
--- a/mkspecs/features/qt_helper_lib.prf
+++ b/mkspecs/features/qt_helper_lib.prf
@ -18,7 +18,9 @@ QT =  # In case qt is re-added.
 CONFIG -= warning_clean  # Don't presume 3rd party code to be clean
 load(qt_common)

-contains(QT_CONFIG, debug_and_release): CONFIG += debug_and_release build_all
+contains(QT_CONFIG, simulator_and_device): CONFIG += iphonesimulator_and_iphoneos
+contains(QT_CONFIG, debug_and_release): CONFIG += debug_and_release
+contains(QT_CONFIG, build_all): CONFIG += build_all

 DESTDIR = $$MODULE_BASE_OUTDIR/lib
 DLLDESTDIR = $$MODULE_BASE_OUTDIR/bin
--- a/mkspecs/features/qt_module.prf
+++ b/mkspecs/features/qt_module.prf
@ -89,7 +89,9 @@ INCLUDEPATH *= $$eval(QT.$${MODULE}.includes) $$eval(QT.$${MODULE}_private.inclu
 # If Qt was configured with -debug-and-release then build the module the same way
 # - unless this is a host library
 !host_build:if(win32|mac):!macx-xcode {
-    contains(QT_CONFIG, debug_and_release): CONFIG += debug_and_release build_all
+    contains(QT_CONFIG, simulator_and_device): CONFIG += iphonesimulator_and_iphoneos
+    contains(QT_CONFIG, debug_and_release): CONFIG += debug_and_release
+    contains(QT_CONFIG, build_all): CONFIG += build_all
 }

 QMAKE_LFLAGS += $$QMAKE_LFLAGS_NOUNDEF
--- a/mkspecs/features/qt_plugin.prf
+++ b/mkspecs/features/qt_plugin.prf
@ -26,7 +26,9 @@ win32:CONFIG(shared, static|shared) {
 tool_plugin {
    !build_pass:contains(QT_CONFIG, debug_and_release): CONFIG += release
 } else:if(win32|mac):!macx-xcode {
-    contains(QT_CONFIG, debug_and_release): CONFIG += debug_and_release build_all
+    contains(QT_CONFIG, simulator_and_device): CONFIG += iphonesimulator_and_iphoneos
+    contains(QT_CONFIG, debug_and_release): CONFIG += debug_and_release
+    contains(QT_CONFIG, build_all): CONFIG += build_all
 }

 CONFIG += relative_qt_rpath  # Qt's plugins should be relocatable
--- a/mkspecs/features/uikit/default_pre.prf
+++ b/mkspecs/features/uikit/default_pre.prf
@ -2,14 +2,14 @@
 load(default_pre)

 # In case Qt was built for a specific SDK
-!simulator_and_device:contains(QMAKE_MAC_SDK, ^$${simulator.sdk}.*): \
+!contains(QT_CONFIG, simulator_and_device):contains(QMAKE_MAC_SDK, ^$${simulator.sdk}.*): \
    CONFIG += simulator $${simulator.sdk}

 # Check for supported Xcode versions
 lessThan(QMAKE_XCODE_VERSION, "4.3"): \
    error("This mkspec requires Xcode 4.3 or later")

-simulator_and_device:iphonesimulator {
+build_pass:simulator {
    # For a simulator_and_device build all the config tests
    # are based on the iPhoneOS ARM SDK, but we know that the simulator
    # is i386 and that we support SSE/SSE2.
@ -19,7 +19,7 @@ simulator_and_device:iphonesimulator {
    CONFIG -= neon
    CONFIG += sse sse2
 }
-simulator_and_device:appletvsimulator {
+build_pass:appletvsimulator {
    # For a simulator_and_device build all the config tests
    # are based on the AppleTVOS ARM SDK, but we know that the simulator
    # is x64 and that we support SSE/SSE2.
--- a/mkspecs/features/uikit/sdk.prf
+++ b/mkspecs/features/uikit/sdk.prf
@ -1,13 +1,13 @@

 # In case the user sets the SDK manually
 contains(QMAKE_MAC_SDK, ^$${simulator.sdk}.*) {
-    simulator_and_device: \
+    contains(QT_CONFIG, simulator_and_device): \
        error("Simulator is handled automatically for simulator_and_device")

    CONFIG += simulator $${simulator.sdk}
 }

-simulator_and_device:simulator: \
+build_pass:simulator: \
    QMAKE_MAC_SDK ~= s,^$${device.sdk},$${simulator.sdk},

 load(sdk)
--- a/mkspecs/features/win32/separate_debug_info.prf
+++ b/mkspecs/features/win32/separate_debug_info.prf
@ -0,0 +1,18 @@
+have_target:!static:!isEmpty(QMAKE_OBJCOPY) {
+    load(resolve_target)
+    QMAKE_TARGET_DEBUG_INFO = $${QMAKE_RESOLVED_TARGET}.debug
+
+    shell_target = $$shell_quote($$relative_path($$QMAKE_RESOLVED_TARGET, $$OUT_PWD))
+    shell_target_debug_info = $$shell_quote($$relative_path($$QMAKE_TARGET_DEBUG_INFO, $$OUT_PWD))
+    copy_debug_info = $$QMAKE_OBJCOPY --only-keep-debug $$shell_target $$shell_target_debug_info
+    link_debug_info = $$QMAKE_OBJCOPY --add-gnu-debuglink=$$shell_target_debug_info $$shell_target
+    strip_debug_info = $$QMAKE_OBJCOPY --strip-debug $$shell_target
+
+    !isEmpty(QMAKE_POST_LINK):QMAKE_POST_LINK = $$escape_expand(\\n\\t)$$QMAKE_POST_LINK
+
+    QMAKE_POST_LINK = $$copy_debug_info && $$strip_debug_info && $$link_debug_info $$QMAKE_POST_LINK
+    silent:QMAKE_POST_LINK = @echo creating $@.debug && $$QMAKE_POST_LINK
+
+    target.targets += $$QMAKE_TARGET_DEBUG_INFO
+    QMAKE_DISTCLEAN += $$QMAKE_TARGET_DEBUG_INFO
+}
--- a/mkspecs/freebsd-clang/qmake.conf
+++ b/mkspecs/freebsd-clang/qmake.conf
@ -7,7 +7,7 @@ QMAKE_PLATFORM          = freebsd bsd

 include(../common/unix.conf)

-QMAKE_CFLAGS_THREAD     = -pthread -D_THREAD_SAFE
+QMAKE_CFLAGS_THREAD     = -pthread

 QMAKE_CXXFLAGS_THREAD   = $$QMAKE_CFLAGS_THREAD

--- a/mkspecs/unsupported/freebsd-g++/qmake.conf
+++ b/mkspecs/unsupported/freebsd-g++/qmake.conf
@ -5,9 +5,9 @@
 MAKEFILE_GENERATOR      = UNIX
 QMAKE_PLATFORM          = freebsd bsd

-include(../../common/unix.conf)
+include(../common/unix.conf)

-QMAKE_CFLAGS_THREAD     = -pthread -D_THREAD_SAFE
+QMAKE_CFLAGS_THREAD     = -pthread

 QMAKE_CXXFLAGS_THREAD   = $$QMAKE_CFLAGS_THREAD

@ -29,6 +29,6 @@ QMAKE_OBJCOPY           = objcopy
 QMAKE_NM                = nm -P
 QMAKE_RANLIB            =

-include(../../common/gcc-base-unix.conf)
-include(../../common/g++-unix.conf)
+include(../common/gcc-base-unix.conf)
+include(../common/g++-unix.conf)
 load(qt_config)
--- a/mkspecs/freebsd-g++/qplatformdefs.h
+++ b/mkspecs/freebsd-g++/qplatformdefs.h
@ -37,4 +37,4 @@
 **
 ****************************************************************************/

-#include "../freebsd-g++/qplatformdefs.h"
+#include "../freebsd-clang/qplatformdefs.h"
--- a/mkspecs/freebsd-icc/qmake.conf
+++ b/mkspecs/freebsd-icc/qmake.conf
@ -1,95 +0,0 @@
-#
-# qmake configuration for freebsd-icc
-#
-# Written for Intel C++ 7.1 and 8.0 on FreeBSD
-#
-# Note: Some of the remarks from the Intel compiler are disabled (even
-# with 'warn_on' specified):
-#
-# remark #171: invalid type conversion: "int" to "void *"
-# remark #193: zero used for undefined preprocessing identifier
-# remark #279: controlling expression is constant
-# remark #304: access control not specified ("public" by default)
-# remark #310: old-style parameter list (anachronism)
-# remark #383: value copied to temporary, reference to temporary used
-# remark #424: extra ";" ignored
-# remark #444: destructor for base class "Class" is not virtual
-# remark #488: template parameter "T" is not used in declaring the parameter
-#              types of function template "function"
-# remark #810: conversion from "type1" to "type2" may loose significant bits
-# remark #858: type qualifier on return type is meaningless
-# remark #967: conversion from "type1" to "type2"; sizes do not match
-# remark #981: operands are evaluated in unspecified order
-# remark #1418: external definition with no prior declaration
-# remark #1419: external declaration in primary source file
-# warning #1476: field uses tail padding of a base class
-# warning #1477: GNU C++ compilers may use bit field padding
-# warning #1572: floating-point equality and inequality comparisons are unreliable
-#
-
-MAKEFILE_GENERATOR      = UNIX
-QMAKE_PLATFORM          = freebsd bsd
-
-include(../common/unix.conf)
-
-QMAKE_COMPILER          = gcc intel_icc   # icc pretends to be gcc
-
-QMAKE_CC                = icc
-QMAKE_LEX               = flex
-QMAKE_LEXFLAGS          =
-QMAKE_YACC              = yacc
-QMAKE_YACCFLAGS         = -d
-QMAKE_CFLAGS            = -wd858,1572
-QMAKE_CFLAGS_DEPS       = -M
-QMAKE_CFLAGS_WARN_ON    = -w2 -wd171,193,279,304,310,383,424,444,488,810,967,981,1418,1419,1476,1477
-QMAKE_CFLAGS_WARN_OFF   = -w
-QMAKE_CFLAGS_RELEASE    =
-QMAKE_CFLAGS_DEBUG      = -g
-QMAKE_CFLAGS_SHLIB      = -fpic
-QMAKE_CFLAGS_STATIC_LIB = $$QMAKE_CFLAGS_SHLIB
-QMAKE_CFLAGS_YACC       =
-QMAKE_CFLAGS_THREAD     = -D_THREAD_SAFE
-
-QMAKE_CXX               = icpc
-QMAKE_CXXFLAGS          = $$QMAKE_CFLAGS
-QMAKE_CXXFLAGS_DEPS     = $$QMAKE_CFLAGS_DEPS
-QMAKE_CXXFLAGS_WARN_ON  = $$QMAKE_CFLAGS_WARN_ON
-QMAKE_CXXFLAGS_WARN_OFF = $$QMAKE_CFLAGS_WARN_OFF
-QMAKE_CXXFLAGS_RELEASE  = $$QMAKE_CFLAGS_RELEASE
-QMAKE_CXXFLAGS_DEBUG    = $$QMAKE_CFLAGS_DEBUG
-QMAKE_CXXFLAGS_SHLIB    = $$QMAKE_CFLAGS_SHLIB
-QMAKE_CXXFLAGS_STATIC_LIB = $$QMAKE_CFLAGS_STATIC_LIB
-QMAKE_CXXFLAGS_YACC     = $$QMAKE_CFLAGS_YACC
-QMAKE_CXXFLAGS_THREAD   = $$QMAKE_CFLAGS_THREAD
-
-# Addon software goes into /usr/local on the BSDs, by default we will look there
-QMAKE_INCDIR            = /usr/local/include
-QMAKE_LIBDIR            = /usr/local/lib
-QMAKE_INCDIR_X11        = /usr/X11R6/include
-QMAKE_LIBDIR_X11        = /usr/X11R6/lib
-QMAKE_INCDIR_OPENGL     = /usr/X11R6/include
-QMAKE_LIBDIR_OPENGL     = /usr/X11R6/lib
-
-QMAKE_LINK              = icpc
-QMAKE_LINK_SHLIB        = icpc
-QMAKE_LFLAGS            =
-QMAKE_LFLAGS_RELEASE    =
-QMAKE_LFLAGS_DEBUG      =
-QMAKE_LFLAGS_SHLIB      = -shared
-QMAKE_LFLAGS_PLUGIN     = $$QMAKE_LFLAGS_SHLIB
-QMAKE_LFLAGS_SONAME     = -Qoption,ld,-soname,
-QMAKE_LFLAGS_THREAD     = -mt
-QMAKE_LFLAGS_RPATH      = -Qoption,ld,-rpath,
-
-QMAKE_LIBS              =
-QMAKE_LIBS_DYNLOAD      =
-QMAKE_LIBS_X11          = -lXext -lX11 -lm
-QMAKE_LIBS_OPENGL       = -lGL
-QMAKE_LIBS_THREAD       =
-
-QMAKE_AR                = ar cqs
-QMAKE_OBJCOPY           = objcopy
-QMAKE_NM                = nm -P
-QMAKE_RANLIB            =
-
-load(qt_config)
--- a/mkspecs/netbsd-g++/qmake.conf
+++ b/mkspecs/netbsd-g++/qmake.conf
@ -6,61 +6,25 @@ MAKEFILE_GENERATOR      = UNIX
 QMAKE_PLATFORM          = netbsd bsd

 include(../common/unix.conf)
+include(../common/gcc-base-unix.conf)
+include(../common/g++-unix.conf)

-QMAKE_COMPILER          = gcc
-
-QMAKE_CC                = gcc
-QMAKE_LEX               = flex
-QMAKE_LEXFLAGS          =
-QMAKE_YACC              = yacc
-QMAKE_YACCFLAGS         = -d
-QMAKE_CFLAGS            = -pipe
-QMAKE_CFLAGS_DEPS       = -M
-QMAKE_CFLAGS_WARN_ON    = -Wall -W
-QMAKE_CFLAGS_WARN_OFF   = -w
-QMAKE_CFLAGS_RELEASE    = -O2
-QMAKE_CFLAGS_DEBUG      = -g
-QMAKE_CFLAGS_SHLIB      = -fPIC
-QMAKE_CFLAGS_STATIC_LIB = $$QMAKE_CFLAGS_SHLIB
-QMAKE_CFLAGS_YACC       = -Wno-unused -Wno-parentheses
 QMAKE_CFLAGS_THREAD     = -pthread

-QMAKE_CXX               = g++
-QMAKE_CXXFLAGS          = $$QMAKE_CFLAGS
-QMAKE_CXXFLAGS_DEPS     = $$QMAKE_CFLAGS_DEPS
-QMAKE_CXXFLAGS_WARN_ON  = $$QMAKE_CFLAGS_WARN_ON
-QMAKE_CXXFLAGS_WARN_OFF = $$QMAKE_CFLAGS_WARN_OFF
-QMAKE_CXXFLAGS_RELEASE  = $$QMAKE_CFLAGS_RELEASE
-QMAKE_CXXFLAGS_DEBUG    = $$QMAKE_CFLAGS_DEBUG
-QMAKE_CXXFLAGS_SHLIB    = $$QMAKE_CFLAGS_SHLIB
-QMAKE_CXXFLAGS_STATIC_LIB = $$QMAKE_CFLAGS_STATIC_LIB
-QMAKE_CXXFLAGS_YACC     = $$QMAKE_CFLAGS_YACC
 QMAKE_CXXFLAGS_THREAD   = $$QMAKE_CFLAGS_THREAD

-QMAKE_INCDIR            = /usr/local/include
-QMAKE_LIBDIR            = /usr/local/lib
-QMAKE_INCDIR_X11        = /usr/X11R6/include
-QMAKE_LIBDIR_X11        = /usr/X11R6/lib
-QMAKE_INCDIR_OPENGL     = /usr/X11R6/include
-QMAKE_LIBDIR_OPENGL     = /usr/X11R6/lib
+QMAKE_INCDIR            = /usr/pkg/include
+QMAKE_LIBDIR            = /usr/pkg/lib
+QMAKE_INCDIR_X11        = /usr/X11R7/include
+QMAKE_LIBDIR_X11        = /usr/X11R7/lib
+QMAKE_INCDIR_OPENGL     = /usr/X11R7/include
+QMAKE_LIBDIR_OPENGL     = /usr/X11R7/lib

-QMAKE_LINK              = g++
-QMAKE_LINK_SHLIB        = g++
-QMAKE_LINK_C            = gcc
-QMAKE_LINK_C_SHLIB      = gcc
-QMAKE_LINK_SHLIB_CMD    = $$QMAKE_LINK_SHLIB $$QMAKE_LFLAGS_SHLIB $(LFLAGS) $$QMAKE_LFLAGS -o $(TARGETD) $(OBJECTS) $(OBJMOC) $(LIBS)
-QMAKE_LFLAGS            =
-QMAKE_LFLAGS_RELEASE    =
-QMAKE_LFLAGS_DEBUG      =
-QMAKE_LFLAGS_SHLIB      = -shared
-QMAKE_LFLAGS_PLUGIN     = $$QMAKE_LFLAGS_SHLIB
-QMAKE_LFLAGS_SONAME     = -Wl,-soname,
 QMAKE_LFLAGS_THREAD     = -pthread
-QMAKE_LFLAGS_NOUNDEF    = -Wl,-no_unresolved
-QMAKE_LFLAGS_RPATH      = -Wl,-rpath,

 QMAKE_LIBS              =
 QMAKE_LIBS_DYNLOAD      =
+QMAKE_LIBS_EXECINFO     = -lexecinfo
 QMAKE_LIBS_X11          = -lXext -lX11 -lm
 QMAKE_LIBS_OPENGL       = -lGL
 QMAKE_LIBS_THREAD       =
@ -68,6 +32,6 @@ QMAKE_LIBS_THREAD       =
 QMAKE_AR                = ar cqs
 QMAKE_OBJCOPY           = objcopy
 QMAKE_NM                = nm -P
-QMAKE_RANLIB            = ranlib
+QMAKE_RANLIB            =

 load(qt_config)
--- a/mkspecs/netbsd-g++/qplatformdefs.h
+++ b/mkspecs/netbsd-g++/qplatformdefs.h
@ -78,16 +78,7 @@
 #undef QT_OPEN_LARGEFILE
 #define QT_OPEN_LARGEFILE       0

-// QT_SOCKLEN_T
-// NetBSD 1.0 - 1.3.3           int
-// NetBSD 1.4 - 1.5             socklen_t
-
 #define QT_SNPRINTF             ::snprintf
 #define QT_VSNPRINTF            ::vsnprintf

-// Older NetBSD versions may still use the a.out format instead of ELF.
-#ifndef __ELF__
-#define QT_AOUT_UNDERSCORE
-#endif
-
 #endif // QPLATFORMDEFS_H
--- a/mkspecs/openbsd-g++/qmake.conf
+++ b/mkspecs/openbsd-g++/qmake.conf
@ -6,35 +6,11 @@ MAKEFILE_GENERATOR      = UNIX
 QMAKE_PLATFORM          = openbsd bsd

 include(../common/unix.conf)
+include(../common/gcc-base-unix.conf)
+include(../common/g++-unix.conf)

-QMAKE_COMPILER          = gcc
-
-QMAKE_CC                = gcc
-QMAKE_LEX               = flex
-QMAKE_LEXFLAGS          =
-QMAKE_YACC              = yacc
-QMAKE_YACCFLAGS         = -d
-QMAKE_CFLAGS            = -pipe
-QMAKE_CFLAGS_DEPS       = -M
-QMAKE_CFLAGS_WARN_ON    = -Wall -W
-QMAKE_CFLAGS_WARN_OFF   = -w
-QMAKE_CFLAGS_RELEASE    = -O2
-QMAKE_CFLAGS_DEBUG      = -g
-QMAKE_CFLAGS_SHLIB      = -fPIC
-QMAKE_CFLAGS_STATIC_LIB = $$QMAKE_CFLAGS_SHLIB
-QMAKE_CFLAGS_YACC       = -Wno-unused -Wno-parentheses
 QMAKE_CFLAGS_THREAD     = -pthread

-QMAKE_CXX               = g++
-QMAKE_CXXFLAGS          = $$QMAKE_CFLAGS
-QMAKE_CXXFLAGS_DEPS     = $$QMAKE_CFLAGS_DEPS
-QMAKE_CXXFLAGS_WARN_ON  = $$QMAKE_CFLAGS_WARN_ON
-QMAKE_CXXFLAGS_WARN_OFF = $$QMAKE_CFLAGS_WARN_OFF
-QMAKE_CXXFLAGS_RELEASE  = $$QMAKE_CFLAGS_RELEASE
-QMAKE_CXXFLAGS_DEBUG    = $$QMAKE_CFLAGS_DEBUG
-QMAKE_CXXFLAGS_SHLIB    = $$QMAKE_CFLAGS_SHLIB
-QMAKE_CXXFLAGS_STATIC_LIB = $$QMAKE_CFLAGS_STATIC_LIB
-QMAKE_CXXFLAGS_YACC     = $$QMAKE_CFLAGS_YACC
 QMAKE_CXXFLAGS_THREAD   = $$QMAKE_CFLAGS_THREAD

 QMAKE_INCDIR            = /usr/local/include
@ -44,31 +20,19 @@ QMAKE_LIBDIR_X11        = /usr/X11R6/lib
 QMAKE_INCDIR_OPENGL     = /usr/X11R6/include
 QMAKE_LIBDIR_OPENGL     = /usr/X11R6/lib

-QMAKE_LINK              = g++
-QMAKE_LINK_SHLIB        = g++
-QMAKE_LINK_C            = gcc
-QMAKE_LINK_C_SHLIB      = gcc
-QMAKE_LINK_SHLIB_CMD    = $$QMAKE_LINK_SHLIB $(LFLAGS) \
-                          $$QMAKE_CFLAGS_SHLIB $$QMAKE_LFLAGS \
-                          -o $(TARGETD) $(OBJECTS) $(OBJMOC) $(LIBS)
-QMAKE_LFLAGS            =
-QMAKE_LFLAGS_RELEASE    =
-QMAKE_LFLAGS_DEBUG      =
-QMAKE_LFLAGS_SHLIB      = -shared
-QMAKE_LFLAGS_PLUGIN     = $$QMAKE_LFLAGS_SHLIB
-QMAKE_LFLAGS_SONAME     = -Wl,-soname,
 QMAKE_LFLAGS_THREAD     = -pthread
-QMAKE_LFLAGS_NOUNDEF    = -Wl,-no_unresolved
+QMAKE_LFLAGS_NOUNDEF    =

 QMAKE_LIBS              =
 QMAKE_LIBS_DYNLOAD      =
+QMAKE_LIBS_EXECINFO     = -lexecinfo
 QMAKE_LIBS_X11          = -lXext -lX11 -lm
 QMAKE_LIBS_OPENGL       = -lGL
 QMAKE_LIBS_THREAD       =

-QMAKE_AR                = ar q
+QMAKE_AR                = ar cqs
 QMAKE_OBJCOPY           = objcopy
 QMAKE_NM                = nm -P
-QMAKE_RANLIB            = ranlib
+QMAKE_RANLIB            =

 load(qt_config)
--- a/mkspecs/openbsd-g++/qplatformdefs.h
+++ b/mkspecs/openbsd-g++/qplatformdefs.h
@ -79,31 +79,7 @@
 #undef QT_OPEN_LARGEFILE
 #define QT_OPEN_LARGEFILE       0

-// QT_SOCKLEN_T
-// OpenBSD 2.2 - 2.4            int
-// OpenBSD 2.5 - 2.8            socklen_t
-
 #define QT_SNPRINTF             ::snprintf
 #define QT_VSNPRINTF            ::vsnprintf

-// 1003.1c-1995 says on page 38 (2.9.3, paragraph 3) that if _POSIX_THREADS
-// is defined, then _POSIX_THREAD_SAFE_FUNCTIONS must also be defined.
-// However this looks like a well-known typo (reversed dependency).
-//
-// On the other hand _POSIX_THREAD_SAFE_FUNCTIONS should be defined only
-// if the Thread-Safe Functions option is implemented. OpenBSD does not
-// support all of the required _r() interfaces, especially getpwuid_r(),
-// which means it should not define _POSIX_THREAD_SAFE_FUNCTIONS.
-//
-// Since OpenBSD does define _POSIX_THREAD_SAFE_FUNCTIONS, we have to
-// undefine it behind its back.
-#ifdef _POSIX_THREAD_SAFE_FUNCTIONS
-#undef _POSIX_THREAD_SAFE_FUNCTIONS
-#endif
-
-// Older OpenBSD versions may still use the a.out format instead of ELF.
-#ifndef __ELF__
-#define QT_AOUT_UNDERSCORE
-#endif
-
 #endif // QPLATFORMDEFS_H
--- a/mkspecs/unsupported/freebsd-g++/qplatformdefs.h
+++ b/mkspecs/unsupported/freebsd-g++/qplatformdefs.h
@ -1,40 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the qmake spec of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#include "../../freebsd-clang/qplatformdefs.h"
--- a/mkspecs/unsupported/freebsd-g++46/qmake.conf
+++ b/mkspecs/unsupported/freebsd-g++46/qmake.conf
@ -1,44 +0,0 @@
-#
-# qmake configuration for freebsd-g++46 (using g++46 from ports/lang/gcc)
-#
-
-MAKEFILE_GENERATOR      = UNIX
-QMAKE_PLATFORM          = freebsd bsd
-
-include(../../common/unix.conf)
-
-QMAKE_CFLAGS_THREAD     = -pthread -D_THREAD_SAFE
-
-QMAKE_CXXFLAGS_THREAD   = $$QMAKE_CFLAGS_THREAD
-
-# Addon software goes into /usr/local on the BSDs, by default we will look there
-QMAKE_INCDIR            = /usr/local/include
-QMAKE_LIBDIR            = /usr/local/lib
-
-QMAKE_LFLAGS_THREAD     = -pthread
-
-QMAKE_LIBS              =
-QMAKE_LIBS_DYNLOAD      =
-QMAKE_LIBS_EXECINFO     = -lexecinfo
-QMAKE_LIBS_X11          = -lXext -lX11 -lm
-QMAKE_LIBS_OPENGL       = -lGL
-QMAKE_LIBS_THREAD       =
-
-QMAKE_AR                = ar cqs
-QMAKE_OBJCOPY           = objcopy
-QMAKE_NM                = nm -P
-QMAKE_RANLIB            =
-
-include(../../common/gcc-base-unix.conf)
-include(../../common/g++-unix.conf)
-
-# Redefined here because g++-base.conf sets QMAKE_CC and QMAKE_CXX
-# to gcc and g++, respectively.
-QMAKE_CC                = gcc46
-QMAKE_CXX               = g++46
-QMAKE_LINK_C            = $$QMAKE_CC
-QMAKE_LINK_C_SHLIB      = $$QMAKE_CC
-QMAKE_LINK              = $$QMAKE_CXX
-QMAKE_LINK_SHLIB        = $$QMAKE_CXX
-
-load(qt_config)
--- a/mkspecs/unsupported/freebsd-g++46/qplatformdefs.h
+++ b/mkspecs/unsupported/freebsd-g++46/qplatformdefs.h
@ -1,40 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the qmake spec of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 3 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL3 included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 3 requirements
-** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 2.0 or (at your option) the GNU General
-** Public license version 3 or any later version approved by the KDE Free
-** Qt Foundation. The licenses are as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
-** included in the packaging of this file. Please review the following
-** information to ensure the GNU General Public License requirements will
-** be met: https://www.gnu.org/licenses/gpl-2.0.html and
-** https://www.gnu.org/licenses/gpl-3.0.html.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#include "../../freebsd-clang/qplatformdefs.h"
--- a/qmake/doc/src/qmake-manual.qdoc
+++ b/qmake/doc/src/qmake-manual.qdoc
@ -1616,6 +1616,13 @@
    \note Platform-specific variables that change the extension override
    the contents of this variable.

+    \target QMAKE_EXTENSION_STATICLIB
+    \section1 QMAKE_EXTENSION_STATICLIB
+
+    Contains the extension for shared static libraries. The value of
+    this variable is typically handled by qmake or
+    \l{#QMAKESPEC}{qmake.conf} and rarely needs to be modified.
+
    \section1 QMAKE_EXT_MOC

    Contains the extension used on included moc files.
--- a/src/3rdparty/forkfd/forkfd.c
+++ b/src/3rdparty/forkfd/forkfd.c
@ -30,6 +30,9 @@
 #include "forkfd.h"

 #include <sys/types.h>
+#if defined(__OpenBSD__) || defined(__NetBSD__)
+#  include <sys/param.h>
+#endif
 #include <sys/time.h>
 #include <sys/resource.h>
 #include <sys/wait.h>
@ -65,7 +68,9 @@
 #  undef HAVE_WAITID
 #endif

-#if defined(__FreeBSD__) && defined(__FreeBSD_version) && __FreeBSD_version >= 1000032
+#if (defined(__FreeBSD__) && defined(__FreeBSD_version) && __FreeBSD_version >= 1000032) || \
+    (defined(__OpenBSD__) && OpenBSD >= 201505) || \
+    (defined(__NetBSD__) && __NetBSD_Version__ >= 600000000)
 #  define HAVE_PIPE2    1
 #endif
 #if defined(__FreeBSD__) || defined(__DragonFly__) || defined(__FreeBSD_kernel__) || \
@ -410,6 +415,26 @@ chain_handler:
        old_sigaction.sa_handler(signum);
 }

+static void ignore_sigpipe()
+{
+#ifdef O_NOSIGPIPE
+    static ffd_atomic_int done = FFD_ATOMIC_INIT(0);
+    if (ffd_atomic_load(&done, FFD_ATOMIC_RELAXED))
+        return;
+#endif
+
+    struct sigaction action;
+    memset(&action, 0, sizeof action);
+    sigemptyset(&action.sa_mask);
+    action.sa_handler = SIG_IGN;
+    action.sa_flags = 0;
+    sigaction(SIGPIPE, &action, NULL);
+
+#ifdef O_NOSIGPIPE
+    ffd_atomic_store(&done, 1, FFD_ATOMIC_RELAXED);
+#endif
+}
+
 static void forkfd_initialize()
 {
 #if defined(HAVE_BROKEN_WAITID)
@ -446,6 +471,11 @@ static void forkfd_initialize()
     */
    sigaction(SIGCHLD, &action, &old_sigaction);

+#ifndef O_NOSIGPIPE
+    /* disable SIGPIPE too */
+    ignore_sigpipe();
+#endif
+
 #ifndef __GNUC__
    atexit(cleanup);
 #endif
@ -486,13 +516,23 @@ static void cleanup()

 static int create_pipe(int filedes[], int flags)
 {
-    int ret;
+    int ret = -1;
 #ifdef HAVE_PIPE2
    /* use pipe2(2) whenever possible, since it can thread-safely create a
     * cloexec pair of pipes. Without it, we have a race condition setting
     * FD_CLOEXEC
     */
-    ret = pipe2(filedes, O_CLOEXEC);
+
+#  ifdef O_NOSIGPIPE
+    /* try first with O_NOSIGPIPE */
+    ret = pipe2(filedes, O_CLOEXEC | O_NOSIGPIPE);
+    if (ret == -1) {
+        /* O_NOSIGPIPE not supported, ignore SIGPIPE */
+        ignore_sigpipe();
+    }
+#  endif
+    if (ret == -1)
+        ret = pipe2(filedes, O_CLOEXEC);
    if (ret == -1)
        return ret;

--- a/src/3rdparty/freetype/freetype.pro
+++ b/src/3rdparty/freetype/freetype.pro
@ -68,12 +68,7 @@ DEFINES += FT2_BUILD_LIBRARY
 DEFINES += FT_CONFIG_OPTION_SYSTEM_ZLIB
 include(../zlib_dependency.pri)

-contains(QT_CONFIG, system-png) {
-    DEFINES += FT_CONFIG_OPTION_USE_PNG
-    include($$PWD/../png_dependency.pri)
-} else:!contains(QT_CONFIG, no-png):!win32 {
-    DEFINES += FT_CONFIG_OPTION_USE_PNG
-    include($$PWD/../libpng.pri)
-}
+DEFINES += FT_CONFIG_OPTION_USE_PNG
+include($$PWD/../png_dependency.pri)

 DEFINES += TT_CONFIG_OPTION_SUBPIXEL_HINTING
--- a/src/3rdparty/libpng.pri
+++ b/src/3rdparty/libpng.pri
@ -1,21 +0,0 @@
-DEFINES += PNG_ARM_NEON_OPT=0
-INCLUDEPATH += $$PWD/libpng
-SOURCES += $$PWD/libpng/png.c \
-  $$PWD/libpng/pngerror.c \
-  $$PWD/libpng/pngget.c \
-  $$PWD/libpng/pngmem.c \
-  $$PWD/libpng/pngpread.c \
-  $$PWD/libpng/pngread.c \
-  $$PWD/libpng/pngrio.c \
-  $$PWD/libpng/pngrtran.c \
-  $$PWD/libpng/pngrutil.c \
-  $$PWD/libpng/pngset.c \
-  $$PWD/libpng/pngtrans.c \
-  $$PWD/libpng/pngwio.c \
-  $$PWD/libpng/pngwrite.c \
-  $$PWD/libpng/pngwtran.c \
-  $$PWD/libpng/pngwutil.c
-
-TR_EXCLUDE += $$PWD/*
-
-include($$PWD/zlib_dependency.pri)
--- a/src/3rdparty/libpng/libpng.pro
+++ b/src/3rdparty/libpng/libpng.pro
@ -0,0 +1,31 @@
+TARGET = qtpng
+
+CONFIG += \
+    static \
+    hide_symbols \
+    exceptions_off rtti_off warn_off \
+    installed
+
+load(qt_helper_lib)
+
+DEFINES += PNG_ARM_NEON_OPT=0
+SOURCES += \
+    png.c \
+    pngerror.c \
+    pngget.c \
+    pngmem.c \
+    pngpread.c \
+    pngread.c \
+    pngrio.c \
+    pngrtran.c \
+    pngrutil.c \
+    pngset.c \
+    pngtrans.c \
+    pngwio.c \
+    pngwrite.c \
+    pngwtran.c \
+    pngwutil.c
+
+TR_EXCLUDE += $$PWD/*
+
+include(../zlib_dependency.pri)
--- a/src/3rdparty/png_dependency.pri
+++ b/src/3rdparty/png_dependency.pri
@ -2,5 +2,6 @@ contains(QT_CONFIG, system-png) {
    unix|mingw: LIBS_PRIVATE += -lpng
    else: LIBS += libpng.lib
 } else: contains(QT_CONFIG, png) {
-    include($$PWD/libpng.pri)
+    INCLUDEPATH += $$PWD/libpng
+    LIBS_PRIVATE += -L$$QT_BUILD_TREE/lib -lqtpng$$qtPlatformTargetSuffix()
 }
--- a/src/concurrent/qtconcurrentiteratekernel.cpp
+++ b/src/concurrent/qtconcurrentiteratekernel.cpp
@ -77,7 +77,7 @@ static qint64 getticks()

 static qint64 getticks()
 {
-#if defined(_POSIX_TIMERS) && (_POSIX_TIMERS > 0)
+#if (defined(_POSIX_TIMERS) && (_POSIX_TIMERS > 0)) || defined(Q_OS_OPENBSD)
    clockid_t clockId;

 #ifndef _POSIX_THREAD_CPUTIME
--- a/src/corelib/Qt5CoreConfigExtras.cmake.in
+++ b/src/corelib/Qt5CoreConfigExtras.cmake.in
@ -46,6 +46,21 @@ if (NOT TARGET Qt5::rcc)
    )
 endif()

+if (NOT TARGET Qt5::qdoc)
+    add_executable(Qt5::qdoc IMPORTED)
+
+!!IF isEmpty(CMAKE_BIN_DIR_IS_ABSOLUTE)
+    set(imported_location \"${_qt5Core_install_prefix}/$${CMAKE_BIN_DIR}qdoc$$CMAKE_BIN_SUFFIX\")
+!!ELSE
+    set(imported_location \"$${CMAKE_BIN_DIR}qdoc$$CMAKE_BIN_SUFFIX\")
+!!ENDIF
+    _qt5_Core_check_file_exists(${imported_location})
+
+    set_target_properties(Qt5::qdoc PROPERTIES
+        IMPORTED_LOCATION ${imported_location}
+    )
+endif()
+
 set(Qt5Core_QMAKE_EXECUTABLE Qt5::qmake)
 set(Qt5Core_MOC_EXECUTABLE Qt5::moc)
 set(Qt5Core_RCC_EXECUTABLE Qt5::rcc)
--- a/src/corelib/animation/qvariantanimation.cpp
+++ b/src/corelib/animation/qvariantanimation.cpp
@ -54,15 +54,13 @@ QT_BEGIN_NAMESPACE
    \class QVariantAnimation
    \inmodule QtCore
    \ingroup animation
-    \brief The QVariantAnimation class provides an abstract base class for animations.
+    \brief The QVariantAnimation class provides a base class for animations.
    \since 4.6

    This class is part of \l{The Animation Framework}. It serves as a
    base class for property and item animations, with functions for
    shared functionality.

-    QVariantAnimation cannot be used directly as it is an abstract
-    class; it has a pure virtual method called updateCurrentValue().
    The class performs interpolation over
    \l{QVariant}s, but leaves using the interpolated values to its
    subclasses. Currently, Qt provides QPropertyAnimation, which
@ -75,7 +73,7 @@ QT_BEGIN_NAMESPACE
    start the animation. QVariantAnimation will interpolate the
    property of the target object and emit valueChanged(). To react to
    a change in the current value you have to reimplement the
-    updateCurrentValue() virtual function.
+    updateCurrentValue() virtual function or connect to said signal.

    It is also possible to set values at specified steps situated
    between the start and end value. The interpolation will then
--- a/src/corelib/doc/src/animation.qdoc
+++ b/src/corelib/doc/src/animation.qdoc
@ -118,11 +118,12 @@

    \section1 Animating Qt Properties

-    As mentioned in the previous section, the QPropertyAnimation class
-    can interpolate over Qt properties. It is this class that should
-    be used for animation of values; in fact, its superclass,
-    QVariantAnimation, is an abstract class, and cannot be used
-    directly.
+    As mentioned in the previous section, the QPropertyAnimation class can
+    interpolate over Qt properties. It is often this class that should be used
+    for animation of values; in fact, its superclass, QVariantAnimation, has an
+    empty implementation of \l{QAbstractAnimation::}{updateCurrentValue()}, and
+    does not change any value unless we change it ourselves on the
+    \l{QVariantAnimation::valueChanged()}{valueChanged signal}.

    A major reason we chose to animate Qt properties is that it
    presents us with freedom to animate already existing classes in
--- a/src/corelib/global/global.pri
+++ b/src/corelib/global/global.pri
@ -28,8 +28,9 @@ SOURCES += \
 	global/qmalloc.cpp \
        global/qnumeric.cpp \
        global/qlogging.cpp \
-        global/qhooks.cpp \
-        global/qversiontagging.cpp
+        global/qhooks.cpp
+
+VERSIONTAGGING_SOURCES = global/qversiontagging.cpp

 # qlibraryinfo.cpp includes qconfig.cpp
 INCLUDEPATH += $$QT_BUILD_TREE/src/corelib/global
@ -63,3 +64,21 @@ journald {
 syslog {
    DEFINES += QT_USE_SYSLOG
 }
+
+gcc:ltcg {
+    versiontagging_compiler.commands = $$QMAKE_CXX -c $(CXXFLAGS) $(INCPATH)
+
+    # Disable LTO, as the symbols disappear somehow under GCC
+    versiontagging_compiler.commands += -fno-lto
+
+    versiontagging_compiler.commands += -o ${QMAKE_FILE_OUT} ${QMAKE_FILE_IN}
+    versiontagging_compiler.dependency_type = TYPE_C
+    versiontagging_compiler.output = ${QMAKE_VAR_OBJECTS_DIR}${QMAKE_FILE_BASE}$${first(QMAKE_EXT_OBJ)}
+    versiontagging_compiler.input = VERSIONTAGGING_SOURCES
+    versiontagging_compiler.variable_out = OBJECTS
+    versiontagging_compiler.name = compiling[versiontagging] ${QMAKE_FILE_IN}
+    silent: versiontagging_compiler.commands = @echo compiling[versiontagging] ${QMAKE_FILE_IN} && $$versiontagging_compiler.commands
+    QMAKE_EXTRA_COMPILERS += versiontagging_compiler
+} else {
+    SOURCES += $$VERSIONTAGGING_SOURCES
+}
--- a/src/corelib/global/qcompilerdetection.h
+++ b/src/corelib/global/qcompilerdetection.h
@ -748,7 +748,9 @@
 #      define Q_COMPILER_TEMPLATE_ALIAS
 #    endif
 #    if __has_feature(cxx_thread_local)
-#      define Q_COMPILER_THREAD_LOCAL
+#      if !defined(__FreeBSD__) /* FreeBSD clang fails on __cxa_thread_atexit */
+#        define Q_COMPILER_THREAD_LOCAL
+#      endif
 #    endif
 #    if __has_feature(cxx_user_literals)
 #      define Q_COMPILER_UDL
@ -1108,7 +1110,8 @@
 # define Q_DECL_NOTHROW Q_DECL_NOEXCEPT
 #endif

-#if defined(Q_COMPILER_ALIGNOF) && !defined(Q_ALIGNOF)
+#if defined(Q_COMPILER_ALIGNOF)
+#  undef Q_ALIGNOF
 #  define Q_ALIGNOF(x)  alignof(x)
 #endif

--- a/src/corelib/global/qendian.h
+++ b/src/corelib/global/qendian.h
@ -49,6 +49,11 @@

 QT_BEGIN_NAMESPACE

+#ifdef __has_builtin
+#  define QT_HAS_BUILTIN(x)     __has_builtin(x)
+#else
+#  define QT_HAS_BUILTIN(x)     0
+#endif

 /*
 * ENDIAN FUNCTIONS
@ -71,18 +76,29 @@ template <typename T> inline void qbswap(const T src, uchar *dest)

 // Used to implement a type-safe and alignment-safe copy operation
 // If you want to avoid the memcpy, you must write specializations for these functions
-template <typename T> inline void qToUnaligned(const T src, uchar *dest)
+template <typename T> Q_ALWAYS_INLINE void qToUnaligned(const T src, uchar *dest)
 {
    // Using sizeof(T) inside memcpy function produces internal compiler error with
    // MSVC2008/ARM in tst_endian -> use extra indirection to resolve size of T.
    const size_t size = sizeof(T);
-    memcpy(dest, &src, size);
+#if QT_HAS_BUILTIN(__builtin_memcpy)
+    __builtin_memcpy
+#else
+    memcpy
+#endif
+            (dest, &src, size);
 }
-template <typename T> inline T qFromUnaligned(const uchar *src)
+
+template <typename T> Q_ALWAYS_INLINE T qFromUnaligned(const uchar *src)
 {
    T dest;
    const size_t size = sizeof(T);
-    memcpy(&dest, src, size);
+#if QT_HAS_BUILTIN(__builtin_memcpy)
+    __builtin_memcpy
+#else
+    memcpy
+#endif
+            (&dest, src, size);
    return dest;
 }

--- a/src/corelib/global/qendian.qdoc
+++ b/src/corelib/global/qendian.qdoc
@ -33,6 +33,29 @@
    little and big endian representations of numbers.
 */

+/*!
+    \internal
+    \fn T qFromUnaligned(const uchar *ptr)
+    \since 5.5
+
+    Loads a \c{T} from address \a ptr, which may be misaligned.
+
+    Use of this function avoids the undefined behavior that the C++ standard
+    otherwise attributes to unaligned loads.
+*/
+
+/*!
+    \internal
+    \fn void qToUnaligned(T t, uchar *ptr)
+    \since 4.5
+
+    Stores \a t to address \a ptr, which may be misaligned.
+
+    Use of this function avoids the undefined behavior that the C++ standard
+    otherwise attributes to unaligned stores.
+*/
+
+
 /*!
    \fn T qFromBigEndian(const uchar *src)
    \since 4.3
--- a/src/corelib/global/qhooks.cpp
+++ b/src/corelib/global/qhooks.cpp
@ -67,7 +67,7 @@ quintptr Q_CORE_EXPORT qtHookData[] = {
    // The required sizes and offsets are tested in tests/auto/other/toolsupport.
    // When this fails and the change was intentional, adjust the test and
    // adjust this value here.
-    14
+    15
 };

 Q_STATIC_ASSERT(QHooks::LastHookIndex == sizeof(qtHookData) / sizeof(qtHookData[0]));
--- a/src/corelib/global/qsystemdetection.h
+++ b/src/corelib/global/qsystemdetection.h
@ -66,6 +66,7 @@
     NETBSD   - NetBSD
     OPENBSD  - OpenBSD
     BSDI     - BSD/OS
+     INTERIX  - Interix
     IRIX     - SGI Irix
     OSF      - HP Tru64 UNIX
     SCO      - SCO OpenServer 5
@ -172,6 +173,9 @@
 #elif defined(__bsdi__)
 #  define Q_OS_BSDI
 #  define Q_OS_BSD4
+#elif defined(__INTERIX)
+#  define Q_OS_INTERIX
+#  define Q_OS_BSD4
 #elif defined(__sgi)
 #  define Q_OS_IRIX
 #elif defined(__osf__)
--- a/src/corelib/io/io.pri
+++ b/src/corelib/io/io.pri
@ -144,7 +144,6 @@ win32 {
        !nacl:mac: {
            SOURCES += io/qsettings_mac.cpp
        }
-        freebsd: LIBS_PRIVATE += -lutil         # qlockfile_unix.cpp requires this
        mac {
            SOURCES += io/qstorageinfo_mac.cpp
            OBJECTIVE_SOURCES += io/qstandardpaths_mac.mm
--- a/src/corelib/io/qdebug.cpp
+++ b/src/corelib/io/qdebug.cpp
@ -166,16 +166,15 @@ void QDebug::putUcs4(uint ucs4)
 {
    maybeQuote('\'');
    if (ucs4 < 0x20) {
-        stream->ts << hex << "\\x" << ucs4 << reset;
+        stream->ts << "\\x" << hex << ucs4 << reset;
    } else if (ucs4 < 0x80) {
        stream->ts << char(ucs4);
    } else {
-        stream->ts << hex << qSetPadChar(QLatin1Char('0'));
        if (ucs4 < 0x10000)
-            stream->ts << qSetFieldWidth(4) << "\\u";
+            stream->ts << "\\u" << qSetFieldWidth(4);
        else
-            stream->ts << qSetFieldWidth(8) << "\\U";
-        stream->ts << ucs4 << reset;
+            stream->ts << "\\U" << qSetFieldWidth(8);
+        stream->ts << hex << qSetPadChar(QLatin1Char('0')) << ucs4 << reset;
    }
    maybeQuote('\'');
 }
--- a/src/corelib/io/qfileinfo.cpp
+++ b/src/corelib/io/qfileinfo.cpp
@ -820,7 +820,7 @@ QString QFileInfo::completeBaseName() const
 }

 /*!
-    Returns the complete suffix of the file.
+    Returns the complete suffix (extension) of the file.

    The complete suffix consists of all characters in the file after
    (but not including) the first '.'.
@ -839,7 +839,7 @@ QString QFileInfo::completeSuffix() const
 }

 /*!
-    Returns the suffix of the file.
+    Returns the suffix (extension) of the file.

    The suffix consists of all characters in the file after (but not
    including) the last '.'.
--- a/src/corelib/io/qfilesystemwatcher.cpp
+++ b/src/corelib/io/qfilesystemwatcher.cpp
@ -58,7 +58,7 @@
 #  include "qfilesystemwatcher_win_p.h"
 #elif defined(USE_INOTIFY)
 #  include "qfilesystemwatcher_inotify_p.h"
-#elif defined(Q_OS_FREEBSD) || defined(Q_OS_NETBSD) || defined(QT_PLATFORM_UIKIT)
+#elif defined(Q_OS_FREEBSD) || defined(Q_OS_NETBSD) || defined(Q_OS_OPENBSD) || defined(QT_PLATFORM_UIKIT)
 #  include "qfilesystemwatcher_kqueue_p.h"
 #elif defined(Q_OS_OSX)
 #  include "qfilesystemwatcher_fsevents_p.h"
@ -74,7 +74,7 @@ QFileSystemWatcherEngine *QFileSystemWatcherPrivate::createNativeEngine(QObject
    // there is a chance that inotify may fail on Linux pre-2.6.13 (August
    // 2005), so we can't just new inotify directly.
    return QInotifyFileSystemWatcherEngine::create(parent);
-#elif defined(Q_OS_FREEBSD) || defined(Q_OS_NETBSD) || defined(QT_PLATFORM_UIKIT)
+#elif defined(Q_OS_FREEBSD) || defined(Q_OS_NETBSD) || defined(Q_OS_OPENBSD) || defined(QT_PLATFORM_UIKIT)
    return QKqueueFileSystemWatcherEngine::create(parent);
 #elif defined(Q_OS_OSX)
    return QFseventsFileSystemWatcherEngine::create(parent);
--- a/src/corelib/io/qfilesystemwatcher_kqueue.cpp
+++ b/src/corelib/io/qfilesystemwatcher_kqueue.cpp
@ -172,7 +172,6 @@ QStringList QKqueueFileSystemWatcherEngine::removePaths(const QStringList &paths
                                                        QStringList *files,
                                                        QStringList *directories)
 {
-    bool isEmpty;
    QStringList p = paths;
    if (pathToID.isEmpty())
        return p;
@ -193,7 +192,6 @@ QStringList QKqueueFileSystemWatcherEngine::removePaths(const QStringList &paths
        else
            files->removeAll(path);
    }
-    isEmpty = pathToID.isEmpty();

    return p;
 }
--- a/src/corelib/io/qlockfile_unix.cpp
+++ b/src/corelib/io/qlockfile_unix.cpp
@ -71,14 +71,12 @@
 #elif defined(Q_OS_HAIKU)
 #   include <kernel/OS.h>
 #elif defined(Q_OS_BSD4) && !defined(QT_PLATFORM_UIKIT)
+# if !defined(Q_OS_NETBSD)
 #   include <sys/user.h>
-# if defined(__GLIBC__) && defined(__FreeBSD_kernel__)
+# endif
 #   include <sys/cdefs.h>
 #   include <sys/param.h>
 #   include <sys/sysctl.h>
-# else
-#   include <libutil.h>
-# endif
 #endif

 QT_BEGIN_NAMESPACE
@ -286,30 +284,33 @@ QString QLockFilePrivate::processNameByPid(qint64 pid)
        return QString();
    return QFile::decodeName(info.name);
 #elif defined(Q_OS_BSD4) && !defined(QT_PLATFORM_UIKIT)
-# if defined(__GLIBC__) && defined(__FreeBSD_kernel__)
-    int mib[4] = { CTL_KERN, KERN_PROC, KERN_PROC_PID, pid };
-    size_t len = 0;
-    if (sysctl(mib, 4, NULL, &len, NULL, 0) < 0)
-        return QString();
-    kinfo_proc *proc = static_cast<kinfo_proc *>(malloc(len));
+# if defined(Q_OS_NETBSD)
+    struct kinfo_proc2 kp;
+    int mib[6] = { CTL_KERN, KERN_PROC2, KERN_PROC_PID, (int)pid, sizeof(struct kinfo_proc2), 1 };
+# elif defined(Q_OS_OPENBSD)
+    struct kinfo_proc kp;
+    int mib[6] = { CTL_KERN, KERN_PROC, KERN_PROC_PID, (int)pid, sizeof(struct kinfo_proc), 1 };
 # else
-    kinfo_proc *proc = kinfo_getproc(pid);
+    struct kinfo_proc kp;
+    int mib[4] = { CTL_KERN, KERN_PROC, KERN_PROC_PID, (int)pid };
 # endif
-    if (!proc)
+    size_t len = sizeof(kp);
+    u_int mib_len = sizeof(mib)/sizeof(u_int);
+
+    if (sysctl(mib, mib_len, &kp, &len, NULL, 0) < 0)
        return QString();
-# if defined(__GLIBC__) && defined(__FreeBSD_kernel__)
-    if (sysctl(mib, 4, proc, &len, NULL, 0) < 0) {
-        free(proc);
+
+# if defined(Q_OS_OPENBSD) || defined(Q_OS_NETBSD)
+    if (kp.p_pid != pid)
        return QString();
-    }
-    if (proc->ki_pid != pid) {
-        free(proc);
+    QString name = QFile::decodeName(kp.p_comm);
+# else
+    if (kp.ki_pid != pid)
        return QString();
-    }
+    QString name = QFile::decodeName(kp.ki_comm);
 # endif
-    QString name = QFile::decodeName(proc->ki_comm);
-    free(proc);
    return name;
+
 #else
    Q_UNUSED(pid);
    return QString();
--- a/src/corelib/io/qlockfile_win.cpp
+++ b/src/corelib/io/qlockfile_win.cpp
@ -143,9 +143,11 @@ bool QLockFilePrivate::isApparentlyStale() const
            if (!procHandle)
                return true;
            // We got a handle but check if process is still alive
-            DWORD dwR = ::WaitForSingleObject(procHandle, 0);
+            DWORD exitCode = 0;
+            if (!::GetExitCodeProcess(procHandle, &exitCode))
+                exitCode = 0;
            ::CloseHandle(procHandle);
-            if (dwR == WAIT_TIMEOUT)
+            if (exitCode != STILL_ACTIVE)
                return true;
            const QString processName = processNameByPid(pid);
            if (!processName.isEmpty() && processName != appname)
--- a/src/corelib/io/qprocess.cpp
+++ b/src/corelib/io/qprocess.cpp
@ -2087,10 +2087,7 @@ void QProcess::start(const QString &program, const QStringList &arguments, OpenM
        return;
    }
    if (program.isEmpty()) {
-        Q_D(QProcess);
-        d->processError = QProcess::FailedToStart;
-        setErrorString(tr("No program defined"));
-        emit error(d->processError);
+        d->setErrorAndEmit(QProcess::FailedToStart, tr("No program defined"));
        return;
    }

@ -2117,10 +2114,7 @@ void QProcess::start(OpenMode mode)
        return;
    }
    if (d->program.isEmpty()) {
-        Q_D(QProcess);
-        d->processError = QProcess::FailedToStart;
-        setErrorString(tr("No program defined"));
-        emit error(d->processError);
+        d->setErrorAndEmit(QProcess::FailedToStart, tr("No program defined"));
        return;
    }

--- a/src/corelib/io/qstorageinfo_unix.cpp
+++ b/src/corelib/io/qstorageinfo_unix.cpp
@ -84,7 +84,7 @@
 #  if !defined(ST_RDONLY)
 #    define ST_RDONLY MNT_RDONLY
 #  endif
-#  if !defined(_STATFS_F_FLAGS)
+#  if !defined(_STATFS_F_FLAGS) && !defined(Q_OS_NETBSD)
 #    define _STATFS_F_FLAGS 1
 #  endif
 #elif defined(Q_OS_ANDROID)
--- a/src/corelib/io/qwindowspipewriter.cpp
+++ b/src/corelib/io/qwindowspipewriter.cpp
@ -205,6 +205,8 @@ bool QWindowsPipeWriter::write(const QByteArray &ba)
 void QWindowsPipeWriter::stop()
 {
    stopped = true;
+    bytesWrittenPending = false;
+    pendingBytesWrittenValue = 0;
    if (writeSequenceStarted) {
        if (!CancelIoEx(handle, &overlapped)) {
            const DWORD dwError = GetLastError();
--- a/src/corelib/json/qjson_p.h
+++ b/src/corelib/json/qjson_p.h
@ -410,7 +410,7 @@ public:
            // pack with itself, we'll discard the high part anyway
            chunk = _mm_packus_epi16(chunk, chunk);
            // unaligned 64-bit store
-            qUnalignedStore(l + i, _mm_cvtsi128_si64(chunk));
+            qToUnaligned(_mm_cvtsi128_si64(chunk), l + i);
            i += 8;
        }
 #  endif
@ -684,6 +684,8 @@ public:
    bool operator >=(const Entry &other) const;
 };

+inline bool operator!=(const Entry &lhs, const Entry &rhs) { return !(lhs == rhs); }
+
 inline bool Entry::operator >=(const QString &key) const
 {
    if (value.latinKey)
--- a/src/corelib/json/qjsonobject.cpp
+++ b/src/corelib/json/qjsonobject.cpp
@ -599,8 +599,8 @@ bool QJsonObject::operator==(const QJsonObject &other) const

    for (uint i = 0; i < o->length; ++i) {
        QJsonPrivate::Entry *e = o->entryAt(i);
-        QJsonValue v(d, o, e->value);
-        if (other.value(e->key()) != v)
+        QJsonPrivate::Entry *oe = other.o->entryAt(i);
+        if (*e != *oe || QJsonValue(d, o, e->value) != QJsonValue(other.d, other.o, oe->value))
            return false;
    }

--- a/src/corelib/json/qjsonvalue.cpp
+++ b/src/corelib/json/qjsonvalue.cpp
@ -275,25 +275,11 @@ QJsonValue::QJsonValue(const QJsonValue &other)
 */
 QJsonValue &QJsonValue::operator =(const QJsonValue &other)
 {
-    if (t == String && stringData && !stringData->ref.deref())
-        free(stringData);
-
-    t = other.t;
-    dbl = other.dbl;
-
-    if (d != other.d) {
-
-        if (d && !d->ref.deref())
-            delete d;
-        d = other.d;
-        if (d)
-            d->ref.ref();
-
-    }
-
-    if (t == String && stringData)
-        stringData->ref.ref();
-
+    QJsonValue copy(other);
+    // swap(copy);
+    qSwap(dbl, copy.dbl);
+    qSwap(d,   copy.d);
+    qSwap(t,   copy.t);
    return *this;
 }

--- a/src/corelib/kernel/qcore_unix.cpp
+++ b/src/corelib/kernel/qcore_unix.cpp
@ -41,16 +41,6 @@
 #include "qcore_unix_p.h"
 #include "qelapsedtimer.h"

-#ifdef Q_OS_NACL
-#elif !defined (Q_OS_VXWORKS)
-# if !defined(Q_OS_HPUX) || defined(__ia64)
-#  include <sys/select.h>
-# endif
-#  include <sys/time.h>
-#else
-#  include <selectLib.h>
-#endif
-
 #include <stdlib.h>

 #ifdef Q_OS_MAC
--- a/src/corelib/kernel/qcore_unix_p.h
+++ b/src/corelib/kernel/qcore_unix_p.h
@ -65,6 +65,16 @@
 #include <sys/stat.h>
 #include <unistd.h>

+#ifdef Q_OS_NACL
+#elif !defined (Q_OS_VXWORKS)
+# if !defined(Q_OS_HPUX) || defined(__ia64)
+#  include <sys/select.h>
+# endif
+#  include <sys/time.h>
+#else
+#  include <selectLib.h>
+#endif
+
 #include <sys/wait.h>
 #include <errno.h>
 #include <fcntl.h>
--- a/src/corelib/kernel/qobject.cpp
+++ b/src/corelib/kernel/qobject.cpp
@ -4699,7 +4699,7 @@ QMetaObject::Connection QObjectPrivate::connectImpl(const QObject *sender, int s
    QOrderedMutexLocker locker(signalSlotLock(sender),
                               signalSlotLock(receiver));

-    if (type & Qt::UniqueConnection) {
+    if (type & Qt::UniqueConnection && slot) {
        QObjectConnectionListVector *connectionLists = QObjectPrivate::get(s)->connectionLists;
        if (connectionLists && connectionLists->count() > signal_index) {
            const QObjectPrivate::Connection *c2 =
--- a/src/corelib/kernel/qobject.h
+++ b/src/corelib/kernel/qobject.h
@ -302,7 +302,6 @@ public:
            connect(const typename QtPrivate::FunctionPointer<Func1>::Object *sender, Func1 signal, const QObject *context, Func2 slot,
                    Qt::ConnectionType type = Qt::AutoConnection)
    {
-#if defined (Q_COMPILER_VARIADIC_TEMPLATES)
        typedef QtPrivate::FunctionPointer<Func1> SignalType;
        const int FunctorArgumentCount = QtPrivate::ComputeFunctorArgumentCount<Func2 , typename SignalType::Arguments>::Value;

@ -310,28 +309,6 @@ public:
                          "Signal and slot arguments are not compatible.");
        const int SlotArgumentCount = (FunctorArgumentCount >= 0) ? FunctorArgumentCount : 0;
        typedef typename QtPrivate::FunctorReturnType<Func2, typename QtPrivate::List_Left<typename SignalType::Arguments, SlotArgumentCount>::Value>::Value SlotReturnType;
-#else
-      // Without variadic template, we don't detect the best overload of operator(). We just
-      // assume there is only one simple operator() and connect to &Func2::operator()
-
-      /* If you get an error such as:
-             couldn't deduce template parameter 'Func2Operator'
-        or
-             cannot resolve address of overloaded function
-        It means the functor does not have a single operator().
-        Functors with overloaded or templated operator() are only supported if the compiler supports
-        C++11 variadic templates
-      */
-        typedef QtPrivate::FunctionPointer<decltype(&Func2::operator())> SlotType ;
-        typedef QtPrivate::FunctionPointer<Func1> SignalType;
-        typedef typename SlotType::ReturnType SlotReturnType;
-        const int SlotArgumentCount = SlotType::ArgumentCount;
-
-        Q_STATIC_ASSERT_X(int(SignalType::ArgumentCount) >= SlotArgumentCount,
-                          "The slot requires more arguments than the signal provides.");
-        Q_STATIC_ASSERT_X((QtPrivate::CheckCompatibleArguments<typename SignalType::Arguments, typename SlotType::Arguments>::value),
-                          "Signal and slot arguments are not compatible.");
-#endif

        Q_STATIC_ASSERT_X((QtPrivate::AreArgumentsCompatible<SlotReturnType, typename SignalType::ReturnType>::value),
                          "Return type of the slot is not compatible with the return type of the signal.");
@ -446,8 +423,7 @@ protected:
    QScopedPointer<QObjectData> d_ptr;

    static const QMetaObject staticQtMetaObject;
-    friend inline const QMetaObject *qt_getQtMetaObject() Q_DECL_NOEXCEPT
-    { return &staticQtMetaObject; }
+    friend inline const QMetaObject *qt_getQtMetaObject() Q_DECL_NOEXCEPT;

    friend struct QMetaObject;
    friend struct QMetaObjectPrivate;
@ -478,6 +454,9 @@ inline QMetaObject::Connection QObject::connect(const QObject *asender, const ch
                                            const char *amember, Qt::ConnectionType atype) const
 { return connect(asender, asignal, this, amember, atype); }

+inline const QMetaObject *qt_getQtMetaObject() Q_DECL_NOEXCEPT
+{ return &QObject::staticQtMetaObject; }
+
 #ifndef QT_NO_USERDATA
 class Q_CORE_EXPORT QObjectUserData {
 public:
--- a/src/corelib/kernel/qobject_impl.h
+++ b/src/corelib/kernel/qobject_impl.h
@ -62,34 +62,6 @@ namespace QtPrivate {
        If one of the type is not declared, the function return 0 and the signal
        cannot be used in queued connection.
    */
-#ifndef Q_COMPILER_VARIADIC_TEMPLATES
-    template <typename ArgList> struct TypesAreDeclaredMetaType { enum { Value = false }; };
-    template <> struct TypesAreDeclaredMetaType<void> { enum { Value = true }; };
-    template <typename Arg, typename Tail> struct TypesAreDeclaredMetaType<List<Arg, Tail> > { enum { Value = QMetaTypeId2<Arg>::Defined && TypesAreDeclaredMetaType<Tail>::Value }; };
-
-    template <typename ArgList, bool Declared = TypesAreDeclaredMetaType<ArgList>::Value > struct ConnectionTypes
-    { static const int *types() { return 0; } };
-    template <> struct ConnectionTypes<void, true>
-    { static const int *types() { static const int t[1] = { 0 }; return t; } };
-    template <typename Arg1> struct ConnectionTypes<List<Arg1, void>, true>
-    { static const int *types() { static const int t[2] = { QtPrivate::QMetaTypeIdHelper<Arg1>::qt_metatype_id(), 0 }; return t; } };
-    template <typename Arg1, typename Arg2> struct ConnectionTypes<List<Arg1, List<Arg2, void> >, true>
-    { static const int *types() { static const int t[3] = { QtPrivate::QMetaTypeIdHelper<Arg1>::qt_metatype_id(), QtPrivate::QMetaTypeIdHelper<Arg2>::qt_metatype_id(), 0 }; return t; } };
-    template <typename Arg1, typename Arg2, typename Arg3> struct ConnectionTypes<List<Arg1, List<Arg2,  List<Arg3, void> > >, true>
-    { static const int *types() { static const int t[4] = { QtPrivate::QMetaTypeIdHelper<Arg1>::qt_metatype_id(), QtPrivate::QMetaTypeIdHelper<Arg2>::qt_metatype_id(),
-                                                            QtPrivate::QMetaTypeIdHelper<Arg3>::qt_metatype_id(), 0 }; return t; } };
-    template <typename Arg1, typename Arg2, typename Arg3, typename Arg4> struct ConnectionTypes<List<Arg1, List<Arg2,  List<Arg3, List<Arg4, void> > > >, true>
-    { static const int *types() { static const int t[5] = { QtPrivate::QMetaTypeIdHelper<Arg1>::qt_metatype_id(), QtPrivate::QMetaTypeIdHelper<Arg2>::qt_metatype_id(),
-                QtPrivate::QMetaTypeIdHelper<Arg3>::qt_metatype_id(), QtPrivate::QMetaTypeIdHelper<Arg4>::qt_metatype_id(), 0 }; return t; } };
-    template <typename Arg1, typename Arg2, typename Arg3, typename Arg4, typename Arg5> struct ConnectionTypes<List<Arg1, List<Arg2,  List<Arg3, List<Arg4, List<Arg5, void> > > > >, true>
-    { static const int *types() { static const int t[6] = { QtPrivate::QMetaTypeIdHelper<Arg1>::qt_metatype_id(), QtPrivate::QMetaTypeIdHelper<Arg2>::qt_metatype_id(),
-                QtPrivate::QMetaTypeIdHelper<Arg3>::qt_metatype_id(), QtPrivate::QMetaTypeIdHelper<Arg4>::qt_metatype_id(), QtPrivate::QMetaTypeIdHelper<Arg5>::qt_metatype_id(), 0 }; return t; } };
-    template <typename Arg1, typename Arg2, typename Arg3, typename Arg4, typename Arg5, typename Arg6>
-    struct ConnectionTypes<List<Arg1, List<Arg2,  List<Arg3, List<Arg4, List<Arg5, List<Arg6, void> > > > > >, true>
-    { static const int *types() { static const int t[7] = { QtPrivate::QMetaTypeIdHelper<Arg1>::qt_metatype_id(), QtPrivate::QMetaTypeIdHelper<Arg2>::qt_metatype_id(),
-            QtPrivate::QMetaTypeIdHelper<Arg3>::qt_metatype_id(), QtPrivate::QMetaTypeIdHelper<Arg4>::qt_metatype_id(), QtPrivate::QMetaTypeIdHelper<Arg5>::qt_metatype_id(),
-            QtPrivate::QMetaTypeIdHelper<Arg6>::qt_metatype_id(), 0 }; return t; } };
-#else
    template <typename ArgList> struct TypesAreDeclaredMetaType { enum { Value = false }; };
    template <> struct TypesAreDeclaredMetaType<List<>> { enum { Value = true }; };
    template <typename Arg, typename... Tail> struct TypesAreDeclaredMetaType<List<Arg, Tail...> >
@ -101,7 +73,6 @@ namespace QtPrivate {
    { static const int *types() { return Q_NULLPTR; } };
    template <typename... Args> struct ConnectionTypes<List<Args...>, true>
    { static const int *types() { static const int t[sizeof...(Args) + 1] = { (QtPrivate::QMetaTypeIdHelper<Args>::qt_metatype_id())..., 0 }; return t; } };
-#endif

    // internal base class (interface) containing functions required to call a slot managed by a pointer to function.
    class QSlotObjectBase {
--- a/src/corelib/kernel/qobjectdefs_impl.h
+++ b/src/corelib/kernel/qobjectdefs_impl.h
@ -65,11 +65,6 @@ namespace QtPrivate {
       List_Left<L,N> take a list and a number as a parameter and returns (via the Value typedef,
       the list composed of the first N element of the list
     */
-#ifndef Q_COMPILER_VARIADIC_TEMPLATES
-    template <typename Head, typename Tail> struct List { typedef Head Car; typedef Tail Cdr; };
-    template <typename L, int N> struct List_Left { typedef List<typename L::Car, typename List_Left<typename L::Cdr, N - 1>::Value > Value; };
-    template <typename L> struct List_Left<L,0> { typedef void Value; };
-#else
    // With variadic template, lists are represented using a variadic template argument instead of the lisp way
    template <typename...> struct List {};
    template <typename Head, typename... Tail> struct List<Head, Tail...> { typedef Head Car; typedef List<Tail...> Cdr; };
@ -79,7 +74,6 @@ namespace QtPrivate {
        typedef typename List_Append<List<typename L::Car>,typename List_Left<typename L::Cdr, N - 1>::Value>::Value Value;
    };
    template <typename L> struct List_Left<L, 0> { typedef List<> Value; };
-#endif
    // List_Select<L,N> returns (via typedef Value) the Nth element of the list L
    template <typename L, int N> struct List_Select { typedef typename List_Select<typename L::Cdr, N - 1>::Value Value; };
    template <typename L> struct List_Select<L,0> { typedef typename L::Car Value; };
@ -100,13 +94,11 @@ namespace QtPrivate {
        if (container.data)
            *reinterpret_cast<U*>(container.data) = value;
    }
-#ifdef Q_COMPILER_RVALUE_REFS
    template<typename T, typename U>
    void operator,(T &&value, const ApplyReturnValue<U> &container) {
        if (container.data)
            *reinterpret_cast<U*>(container.data) = value;
    }
-#endif
    template<typename T>
    void operator,(T, const ApplyReturnValue<void> &) {}

@ -127,364 +119,6 @@ namespace QtPrivate {
       The Functor<Func,N> struct is the helper to call a functor of N argument.
       its call function is the same as the FunctionPointer::call function.
     */
-#ifndef Q_COMPILER_VARIADIC_TEMPLATES
-    template<typename Func> struct FunctionPointer { enum {ArgumentCount = -1, IsPointerToMemberFunction = false}; };
-    //Pointers to member functions
-    template<class Obj, typename Ret> struct FunctionPointer<Ret (Obj::*) ()>
-    {
-        typedef Obj Object;
-        typedef void Arguments;
-        typedef Ret ReturnType;
-        typedef Ret (Obj::*Function) ();
-        enum {ArgumentCount = 0, IsPointerToMemberFunction = true};
-        template <typename Args, typename R>
-        static void call(Function f, Obj *o, void **arg) { (o->*f)(), ApplyReturnValue<R>(arg[0]); }
-    };
-    template<class Obj, typename Ret, typename Arg1> struct FunctionPointer<Ret (Obj::*) (Arg1)>
-    {
-        typedef Obj Object;
-        typedef List<Arg1, void> Arguments;
-        typedef Ret ReturnType;
-        typedef Ret (Obj::*Function) (Arg1);
-        enum {ArgumentCount = 1, IsPointerToMemberFunction = true};
-        template <typename Args, typename R>
-        static void call(Function f, Obj *o, void **arg) {
-            (o->*f)((*reinterpret_cast<typename RemoveRef<typename Args::Car>::Type *>(arg[1]))), ApplyReturnValue<R>(arg[0]);
-        }
-    };
-    template<class Obj, typename Ret, typename Arg1, typename Arg2> struct FunctionPointer<Ret (Obj::*) (Arg1, Arg2)>
-    {
-        typedef Obj Object;
-        typedef List<Arg1, List<Arg2, void> >  Arguments;
-        typedef Ret ReturnType;
-        typedef Ret (Obj::*Function) (Arg1, Arg2);
-        enum {ArgumentCount = 2, IsPointerToMemberFunction = true};
-        template <typename Args, typename R>
-        static void call(Function f, Obj *o, void **arg) {
-            (o->*f)( *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 0>::Value>::Type *>(arg[1]),
-                     *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 1>::Value>::Type *>(arg[2])), ApplyReturnValue<R>(arg[0]);
-        }
-    };
-    template<class Obj, typename Ret, typename Arg1, typename Arg2, typename Arg3> struct FunctionPointer<Ret (Obj::*) (Arg1, Arg2, Arg3)>
-    {
-        typedef Obj Object;
-        typedef List<Arg1, List<Arg2, List<Arg3, void> > >  Arguments;
-        typedef Ret ReturnType;
-        typedef Ret (Obj::*Function) (Arg1, Arg2, Arg3);
-        enum {ArgumentCount = 3, IsPointerToMemberFunction = true};
-        template <typename Args, typename R>
-        static void call(Function f, Obj *o, void **arg) {
-            (o->*f)( *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 0>::Value>::Type *>(arg[1]),
-                     *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 1>::Value>::Type *>(arg[2]),
-                     *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 2>::Value>::Type *>(arg[3])), ApplyReturnValue<R>(arg[0]);
-        }
-    };
-    template<class Obj, typename Ret, typename Arg1, typename Arg2, typename Arg3, typename Arg4> struct FunctionPointer<Ret (Obj::*) (Arg1, Arg2, Arg3, Arg4)>
-    {
-        typedef Obj Object;
-        typedef List<Arg1, List<Arg2, List<Arg3, List<Arg4, void> > > >  Arguments;
-        typedef Ret ReturnType;
-        typedef Ret (Obj::*Function) (Arg1, Arg2, Arg3, Arg4);
-        enum {ArgumentCount = 4, IsPointerToMemberFunction = true};
-        template <typename Args, typename R>
-        static void call(Function f, Obj *o, void **arg) {
-            (o->*f)( *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 0>::Value>::Type *>(arg[1]),
-                     *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 1>::Value>::Type *>(arg[2]),
-                     *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 2>::Value>::Type *>(arg[3]),
-                     *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 3>::Value>::Type *>(arg[4])), ApplyReturnValue<R>(arg[0]);
-        }
-    };
-    template<class Obj, typename Ret, typename Arg1, typename Arg2, typename Arg3, typename Arg4, typename Arg5> struct FunctionPointer<Ret (Obj::*) (Arg1, Arg2, Arg3, Arg4, Arg5)>
-    {
-        typedef Obj Object;
-        typedef List<Arg1, List<Arg2, List<Arg3, List<Arg4, List<Arg5, void> > > > >  Arguments;
-        typedef Ret ReturnType;
-        typedef Ret (Obj::*Function) (Arg1, Arg2, Arg3, Arg4, Arg5);
-        enum {ArgumentCount = 5, IsPointerToMemberFunction = true};
-        template <typename Args, typename R>
-        static void call(Function f, Obj *o, void **arg) {
-            (o->*f)( *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 0>::Value>::Type *>(arg[1]),
-                     *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 1>::Value>::Type *>(arg[2]),
-                     *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 2>::Value>::Type *>(arg[3]),
-                     *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 3>::Value>::Type *>(arg[4]),
-                     *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 4>::Value>::Type *>(arg[5])), ApplyReturnValue<R>(arg[0]);
-        }
-    };
-    template<class Obj, typename Ret, typename Arg1, typename Arg2, typename Arg3, typename Arg4, typename Arg5, typename Arg6>
-    struct FunctionPointer<Ret (Obj::*) (Arg1, Arg2, Arg3, Arg4, Arg5, Arg6)>
-    {
-        typedef Obj Object;
-        typedef List<Arg1, List<Arg2, List<Arg3, List<Arg4, List<Arg5, List<Arg6, void> > > > > >  Arguments;
-        typedef Ret ReturnType;
-        typedef Ret (Obj::*Function) (Arg1, Arg2, Arg3, Arg4, Arg5, Arg6);
-        enum {ArgumentCount = 6, IsPointerToMemberFunction = true};
-        template <typename Args, typename R>
-        static void call(Function f, Obj *o, void **arg) {
-            (o->*f)( *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 0>::Value>::Type *>(arg[1]),
-                     *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 1>::Value>::Type *>(arg[2]),
-                     *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 2>::Value>::Type *>(arg[3]),
-                     *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 3>::Value>::Type *>(arg[4]),
-                     *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 4>::Value>::Type *>(arg[5]),
-                     *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 5>::Value>::Type *>(arg[6])), ApplyReturnValue<R>(arg[0]);
-        }
-    };
-
-    //Pointers to const member functions
-    template<class Obj, typename Ret> struct FunctionPointer<Ret (Obj::*) () const>
-    {
-        typedef Obj Object;
-        typedef void Arguments;
-        typedef Ret ReturnType;
-        typedef Ret (Obj::*Function) () const;
-        enum {ArgumentCount = 0, IsPointerToMemberFunction = true};
-        template <typename Args, typename R>
-        static void call(Function f, Obj *o, void **arg) { (o->*f)(), ApplyReturnValue<R>(arg[0]); }
-    };
-    template<class Obj, typename Ret, typename Arg1> struct FunctionPointer<Ret (Obj::*) (Arg1) const>
-    {
-        typedef Obj Object;
-        typedef List<Arg1, void> Arguments;
-        typedef Ret ReturnType;
-        typedef Ret (Obj::*Function) (Arg1) const;
-        enum {ArgumentCount = 1, IsPointerToMemberFunction = true};
-        template <typename Args, typename R>
-        static void call(Function f, Obj *o, void **arg) {
-            (o->*f)((*reinterpret_cast<typename RemoveRef<typename Args::Car>::Type *>(arg[1]))), ApplyReturnValue<R>(arg[0]);
-        }
-    };
-    template<class Obj, typename Ret, typename Arg1, typename Arg2> struct FunctionPointer<Ret (Obj::*) (Arg1, Arg2) const>
-    {
-        typedef Obj Object;
-        typedef List<Arg1, List<Arg2, void> >  Arguments;
-        typedef Ret ReturnType;
-        typedef Ret (Obj::*Function) (Arg1, Arg2) const;
-        enum {ArgumentCount = 2, IsPointerToMemberFunction = true};
-        template <typename Args, typename R>
-        static void call(Function f, Obj *o, void **arg) {
-            (o->*f)( *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 0>::Value>::Type *>(arg[1]),
-                     *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 1>::Value>::Type *>(arg[2])), ApplyReturnValue<R>(arg[0]);
-        }
-    };
-    template<class Obj, typename Ret, typename Arg1, typename Arg2, typename Arg3> struct FunctionPointer<Ret (Obj::*) (Arg1, Arg2, Arg3) const>
-    {
-        typedef Obj Object;
-        typedef List<Arg1, List<Arg2, List<Arg3, void> > >  Arguments;
-        typedef Ret ReturnType;
-        typedef Ret (Obj::*Function) (Arg1, Arg2, Arg3) const;
-        enum {ArgumentCount = 3, IsPointerToMemberFunction = true};
-        template <typename Args, typename R>
-        static void call(Function f, Obj *o, void **arg) {
-            (o->*f)( *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 0>::Value>::Type *>(arg[1]),
-                     *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 1>::Value>::Type *>(arg[2]),
-                     *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 2>::Value>::Type *>(arg[3])), ApplyReturnValue<R>(arg[0]);
-        }
-    };
-    template<class Obj, typename Ret, typename Arg1, typename Arg2, typename Arg3, typename Arg4> struct FunctionPointer<Ret (Obj::*) (Arg1, Arg2, Arg3, Arg4) const>
-    {
-        typedef Obj Object;
-        typedef List<Arg1, List<Arg2, List<Arg3, List<Arg4, void> > > >  Arguments;
-        typedef Ret ReturnType;
-        typedef Ret (Obj::*Function) (Arg1, Arg2, Arg3, Arg4) const;
-        enum {ArgumentCount = 4, IsPointerToMemberFunction = true};
-        template <typename Args, typename R>
-        static void call(Function f, Obj *o, void **arg) {
-            (o->*f)( *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 0>::Value>::Type *>(arg[1]),
-                     *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 1>::Value>::Type *>(arg[2]),
-                     *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 2>::Value>::Type *>(arg[3]),
-                     *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 3>::Value>::Type *>(arg[4])), ApplyReturnValue<R>(arg[0]);
-        }
-    };
-    template<class Obj, typename Ret, typename Arg1, typename Arg2, typename Arg3, typename Arg4, typename Arg5> struct FunctionPointer<Ret (Obj::*) (Arg1, Arg2, Arg3, Arg4, Arg5) const>
-    {
-        typedef Obj Object;
-        typedef List<Arg1, List<Arg2, List<Arg3, List<Arg4, List<Arg5, void> > > > >  Arguments;
-        typedef Ret ReturnType;
-        typedef Ret (Obj::*Function) (Arg1, Arg2, Arg3, Arg4, Arg5) const;
-        enum {ArgumentCount = 5, IsPointerToMemberFunction = true};
-        template <typename Args, typename R>
-        static void call(Function f, Obj *o, void **arg) {
-            (o->*f)( *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 0>::Value>::Type *>(arg[1]),
-                     *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 1>::Value>::Type *>(arg[2]),
-                     *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 2>::Value>::Type *>(arg[3]),
-                     *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 3>::Value>::Type *>(arg[4]),
-                     *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 4>::Value>::Type *>(arg[5])), ApplyReturnValue<R>(arg[0]);
-        }
-    };
-    template<class Obj, typename Ret, typename Arg1, typename Arg2, typename Arg3, typename Arg4, typename Arg5, typename Arg6>
-    struct FunctionPointer<Ret (Obj::*) (Arg1, Arg2, Arg3, Arg4, Arg5, Arg6) const>
-    {
-        typedef Obj Object;
-        typedef List<Arg1, List<Arg2, List<Arg3, List<Arg4, List<Arg5, List<Arg6, void> > > > > >  Arguments;
-        typedef Ret ReturnType;
-        typedef Ret (Obj::*Function) (Arg1, Arg2, Arg3, Arg4, Arg5, Arg6) const;
-        enum {ArgumentCount = 6, IsPointerToMemberFunction = true};
-        template <typename Args, typename R>
-        static void call(Function f, Obj *o, void **arg) {
-            (o->*f)( *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 0>::Value>::Type *>(arg[1]),
-                     *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 1>::Value>::Type *>(arg[2]),
-                     *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 2>::Value>::Type *>(arg[3]),
-                     *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 3>::Value>::Type *>(arg[4]),
-                     *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 4>::Value>::Type *>(arg[5]),
-                     *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 5>::Value>::Type *>(arg[6])), ApplyReturnValue<R>(arg[0]);
-        }
-    };
-
-    //Static functions
-    template<typename Ret> struct FunctionPointer<Ret (*) ()>
-    {
-        typedef void Arguments;
-        typedef Ret (*Function) ();
-        typedef Ret ReturnType;
-        enum {ArgumentCount = 0, IsPointerToMemberFunction = false};
-        template <typename Args, typename R>
-        static void call(Function f, void *, void **arg) { f(), ApplyReturnValue<R>(arg[0]); }
-    };
-    template<typename Ret, typename Arg1> struct FunctionPointer<Ret (*) (Arg1)>
-    {
-        typedef List<Arg1, void> Arguments;
-        typedef Ret ReturnType;
-        typedef Ret (*Function) (Arg1);
-        enum {ArgumentCount = 1, IsPointerToMemberFunction = false};
-        template <typename Args, typename R>
-        static void call(Function f, void *, void **arg)
-        { f(*reinterpret_cast<typename RemoveRef<typename List_Select<Args, 0>::Value>::Type *>(arg[1])), ApplyReturnValue<R>(arg[0]); }
-    };
-    template<typename Ret, typename Arg1, typename Arg2> struct FunctionPointer<Ret (*) (Arg1, Arg2)>
-    {
-        typedef List<Arg1, List<Arg2, void> > Arguments;
-        typedef Ret ReturnType;
-        typedef Ret (*Function) (Arg1, Arg2);
-        enum {ArgumentCount = 2, IsPointerToMemberFunction = false};
-        template <typename Args, typename R>
-        static void call(Function f, void *, void **arg) {
-            f(*reinterpret_cast<typename RemoveRef<typename List_Select<Args, 0>::Value>::Type *>(arg[1]),
-              *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 1>::Value>::Type *>(arg[2])), ApplyReturnValue<R>(arg[0]); }
-    };
-    template<typename Ret, typename Arg1, typename Arg2, typename Arg3> struct FunctionPointer<Ret (*) (Arg1, Arg2, Arg3)>
-    {
-        typedef List<Arg1, List<Arg2, List<Arg3, void> > >  Arguments;
-        typedef Ret ReturnType;
-        typedef Ret (*Function) (Arg1, Arg2, Arg3);
-        enum {ArgumentCount = 3, IsPointerToMemberFunction = false};
-        template <typename Args, typename R>
-        static void call(Function f, void *, void **arg) {
-            f(       *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 0>::Value>::Type *>(arg[1]),
-                     *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 1>::Value>::Type *>(arg[2]),
-                     *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 2>::Value>::Type *>(arg[3])), ApplyReturnValue<R>(arg[0]);
-        }
-    };
-    template<typename Ret, typename Arg1, typename Arg2, typename Arg3, typename Arg4> struct FunctionPointer<Ret (*) (Arg1, Arg2, Arg3, Arg4)>
-    {
-        typedef List<Arg1, List<Arg2, List<Arg3, List<Arg4, void> > > >  Arguments;
-        typedef Ret ReturnType;
-        typedef Ret (*Function) (Arg1, Arg2, Arg3, Arg4);
-        enum {ArgumentCount = 4, IsPointerToMemberFunction = false};
-        template <typename Args, typename R>
-        static void call(Function f, void *, void **arg) {
-            f(       *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 0>::Value>::Type *>(arg[1]),
-                     *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 1>::Value>::Type *>(arg[2]),
-                     *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 2>::Value>::Type *>(arg[3]),
-                     *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 3>::Value>::Type *>(arg[4])), ApplyReturnValue<R>(arg[0]);
-        }
-    };
-    template<typename Ret, typename Arg1, typename Arg2, typename Arg3, typename Arg4, typename Arg5> struct FunctionPointer<Ret (*) (Arg1, Arg2, Arg3, Arg4, Arg5)>
-    {
-        typedef List<Arg1, List<Arg2, List<Arg3,
-        List<Arg4, List<Arg5, void > > > > >  Arguments;
-        typedef Ret ReturnType;
-        typedef Ret (*Function) (Arg1, Arg2, Arg3, Arg4, Arg5);
-        enum {ArgumentCount = 5, IsPointerToMemberFunction = false};
-        template <typename Args, typename R>
-        static void call(Function f, void *, void **arg) {
-            f(       *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 0>::Value>::Type *>(arg[1]),
-                     *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 1>::Value>::Type *>(arg[2]),
-                     *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 2>::Value>::Type *>(arg[3]),
-                     *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 3>::Value>::Type *>(arg[4]),
-                     *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 4>::Value>::Type *>(arg[5])), ApplyReturnValue<R>(arg[0]);
-        }
-    };
-    template<typename Ret, typename Arg1, typename Arg2, typename Arg3, typename Arg4, typename Arg5, typename Arg6> struct FunctionPointer<Ret (*) (Arg1, Arg2, Arg3, Arg4, Arg5, Arg6)>
-    {
-        typedef List<Arg1, List<Arg2, List<Arg3, List<Arg4, List<Arg5, List<Arg6, void> > > > > >  Arguments;
-        typedef Ret ReturnType;
-        typedef Ret (*Function) (Arg1, Arg2, Arg3, Arg4, Arg5, Arg6);
-        enum {ArgumentCount = 6, IsPointerToMemberFunction = false};
-        template <typename Args, typename R>
-        static void call(Function f, void *, void **arg) {
-            f(       *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 0>::Value>::Type *>(arg[1]),
-                     *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 1>::Value>::Type *>(arg[2]),
-                     *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 2>::Value>::Type *>(arg[3]),
-                     *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 3>::Value>::Type *>(arg[4]),
-                     *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 4>::Value>::Type *>(arg[5]),
-                     *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 5>::Value>::Type *>(arg[6])), ApplyReturnValue<R>(arg[0]);
-        }
-    };
-
-    //Functors
-    template<typename F, int N> struct Functor;
-    template<typename Function> struct Functor<Function, 0>
-    {
-        template <typename Args, typename R>
-        static void call(Function &f, void *, void **arg) { f(), ApplyReturnValue<R>(arg[0]); }
-    };
-    template<typename Function> struct Functor<Function, 1>
-    {
-        template <typename Args, typename R>
-        static void call(Function &f, void *, void **arg) {
-            f(*reinterpret_cast<typename RemoveRef<typename List_Select<Args, 0>::Value>::Type *>(arg[1])), ApplyReturnValue<R>(arg[0]);
-        }
-    };
-    template<typename Function> struct Functor<Function, 2>
-    {
-        template <typename Args, typename R>
-        static void call(Function &f, void *, void **arg) {
-            f( *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 0>::Value>::Type *>(arg[1]),
-               *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 1>::Value>::Type *>(arg[2])), ApplyReturnValue<R>(arg[0]);
-        }
-    };
-    template<typename Function> struct Functor<Function, 3>
-    {
-        template <typename Args, typename R>
-        static void call(Function &f, void *, void **arg) {
-            f( *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 0>::Value>::Type *>(arg[1]),
-               *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 1>::Value>::Type *>(arg[2]),
-               *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 2>::Value>::Type *>(arg[3])), ApplyReturnValue<R>(arg[0]);
-        }
-    };
-    template<typename Function> struct Functor<Function, 4>
-    {
-        template <typename Args, typename R>
-        static void call(Function &f, void *, void **arg) {
-            f( *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 0>::Value>::Type *>(arg[1]),
-               *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 1>::Value>::Type *>(arg[2]),
-               *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 2>::Value>::Type *>(arg[3]),
-               *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 3>::Value>::Type *>(arg[4])), ApplyReturnValue<R>(arg[0]);
-        }
-    };
-    template<typename Function> struct Functor<Function, 5>
-    {
-        template <typename Args, typename R>
-        static void call(Function &f, void *, void **arg) {
-            f( *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 0>::Value>::Type *>(arg[1]),
-               *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 1>::Value>::Type *>(arg[2]),
-               *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 2>::Value>::Type *>(arg[3]),
-               *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 3>::Value>::Type *>(arg[4]),
-               *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 4>::Value>::Type *>(arg[5])), ApplyReturnValue<R>(arg[0]);
-        }
-    };
-    template<typename Function> struct Functor<Function, 6>
-    {
-        template <typename Args, typename R>
-        static void call(Function &f, void *, void **arg) {
-            f( *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 0>::Value>::Type *>(arg[1]),
-               *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 1>::Value>::Type *>(arg[2]),
-               *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 2>::Value>::Type *>(arg[3]),
-               *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 3>::Value>::Type *>(arg[4]),
-               *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 4>::Value>::Type *>(arg[5]),
-               *reinterpret_cast<typename RemoveRef<typename List_Select<Args, 5>::Value>::Type *>(arg[6])), ApplyReturnValue<R>(arg[0]);
-        }
-    };
-#else
    template <int...> struct IndexesList {};
    template <typename IndexList, int Right> struct IndexesAppend;
    template <int... Left, int Right> struct IndexesAppend<IndexesList<Left...>, Right>
@ -558,7 +192,6 @@ namespace QtPrivate {
            FunctorCall<typename Indexes<N>::Value, SignalArgs, R, Function>::call(f, arg);
        }
    };
-#endif

    /*
       Logic that check if the arguments of the slot matches the argument of the signal.
@ -578,16 +211,6 @@ namespace QtPrivate {
    template<typename A> struct AreArgumentsCompatible<A, void> { enum { value = true }; };
    template<> struct AreArgumentsCompatible<void, void> { enum { value = true }; };

-#ifndef Q_COMPILER_VARIADIC_TEMPLATES
-    template <typename List1, typename List2> struct CheckCompatibleArguments { enum { value = false }; };
-    template <> struct CheckCompatibleArguments<void, void> { enum { value = true }; };
-    template <typename List1> struct CheckCompatibleArguments<List1, void> { enum { value = true }; };
-    template <typename Arg1, typename Arg2, typename Tail1, typename Tail2> struct CheckCompatibleArguments<List<Arg1, Tail1>, List<Arg2, Tail2> >
-    {
-        enum { value = AreArgumentsCompatible<typename RemoveConstRef<Arg1>::Type, typename RemoveConstRef<Arg2>::Type>::value
-                    && CheckCompatibleArguments<Tail1, Tail2>::value };
-    };
-#else
    template <typename List1, typename List2> struct CheckCompatibleArguments { enum { value = false }; };
    template <> struct CheckCompatibleArguments<List<>, List<>> { enum { value = true }; };
    template <typename List1> struct CheckCompatibleArguments<List1, List<>> { enum { value = true }; };
@ -597,9 +220,7 @@ namespace QtPrivate {
        enum { value = AreArgumentsCompatible<typename RemoveConstRef<Arg1>::Type, typename RemoveConstRef<Arg2>::Type>::value
                    && CheckCompatibleArguments<List<Tail1...>, List<Tail2...>>::value };
    };
-#endif

-#if defined(Q_COMPILER_VARIADIC_TEMPLATES)
    /*
       Find the maximum number of arguments a functor object can take and be still compatible with
       the arguments from the signal.
@ -631,8 +252,6 @@ namespace QtPrivate {
        template <typename D> static D dummy();
        typedef decltype(dummy<Functor>().operator()((dummy<ArgList>())...)) Value;
    };
-#endif
-
 }

 QT_END_NAMESPACE
--- a/src/corelib/mimetypes/qmimemagicrule.cpp
+++ b/src/corelib/mimetypes/qmimemagicrule.cpp
@ -48,7 +48,6 @@
 #include <QtCore/QList>
 #include <QtCore/QDebug>
 #include <qendian.h>
-#include <private/qsimd_p.h> // for qUnalignedLoad

 QT_BEGIN_NAMESPACE

@ -164,7 +163,7 @@ bool QMimeMagicRule::matchNumber(const QByteArray &data) const
    const char *p = data.constData() + m_startPos;
    const char *e = data.constData() + qMin(data.size() - int(sizeof(T)), m_endPos + 1);
    for ( ; p <= e; ++p) {
-        if ((qUnalignedLoad<T>(p) & mask) == (value & mask))
+        if ((qFromUnaligned<T>(reinterpret_cast<const uchar *>(p)) & mask) == (value & mask))
            return true;
    }

--- a/src/corelib/thread/qmutex_linux.cpp
+++ b/src/corelib/thread/qmutex_linux.cpp
@ -57,7 +57,7 @@
 #endif

 #ifndef FUTEX_PRIVATE_FLAG
-#  define FUTEX_PRIVATE_FLAG    128
+#  define FUTEX_PRIVATE_FLAG    0
 #endif


--- a/src/corelib/tools/qarraydata.cpp
+++ b/src/corelib/tools/qarraydata.cpp
@ -1,6 +1,7 @@
 /****************************************************************************
 **
 ** Copyright (C) 2016 The Qt Company Ltd.
+** Copyright (C) 2016 Intel Corporation.
 ** Contact: https://www.qt.io/licensing/
 **
 ** This file is part of the QtCore module of the Qt Toolkit.
@ -87,29 +88,20 @@ QArrayData *QArrayData::allocate(size_t objectSize, size_t alignment,
    if (!(options & RawData))
        headerSize += (alignment - Q_ALIGNOF(QArrayData));

-    // Allocate additional space if array is growing
-    if (options & Grow) {
-
-        // Guard against integer overflow when multiplying.
-        if (capacity > std::numeric_limits<size_t>::max() / objectSize)
-            return 0;
-
-        size_t alloc;
-        if (mul_overflow(objectSize, capacity, &alloc))
-            return 0;
-
-        // Make sure qAllocMore won't overflow qAllocMore.
-        if (headerSize > size_t(MaxAllocSize) || alloc > size_t(MaxAllocSize) - headerSize)
-            return 0;
-
-        capacity = qAllocMore(int(alloc), int(headerSize)) / int(objectSize);
-    }
+    if (headerSize > size_t(MaxAllocSize))
+        return 0;

+    // Calculate the byte size
+    // allocSize = objectSize * capacity + headerSize, but checked for overflow
+    // plus padded to grow in size
    size_t allocSize;
-    if (mul_overflow(objectSize, capacity, &allocSize))
-        return 0;
-    if (add_overflow(allocSize, headerSize, &allocSize))
-        return 0;
+    if (options & Grow) {
+        auto r = qCalculateGrowingBlockSize(capacity, objectSize, headerSize);
+        capacity = r.elementCount;
+        allocSize = r.size;
+    } else {
+        allocSize = qCalculateBlockSize(capacity, objectSize, headerSize);
+    }

    QArrayData *header = static_cast<QArrayData *>(::malloc(allocSize));
    if (header) {
--- a/src/corelib/tools/qbitarray.cpp
+++ b/src/corelib/tools/qbitarray.cpp
@ -42,6 +42,7 @@
 #include <qalgorithms.h>
 #include <qdatastream.h>
 #include <qdebug.h>
+#include <qendian.h>
 #include <string.h>

 QT_BEGIN_NAMESPACE
@ -169,25 +170,6 @@ QBitArray::QBitArray(int size, bool value)
    Same as size().
 */

-template <typename T> T qUnalignedLoad(const uchar *ptr)
-{
-    /*
-     * Testing with different compilers shows that they all optimize the memcpy
-     * call away and replace with direct loads whenever possible. On x86 and PPC,
-     * GCC does direct unaligned loads; on MIPS, it generates a pair of load-left
-     * and load-right instructions. ICC and Clang do the same on x86. This is both
-     * 32- and 64-bit.
-     *
-     * On ARM cores without unaligned loads, the compiler leaves a call to
-     * memcpy.
-     */
-
-    T u;
-    memcpy(&u, ptr, sizeof(u));
-    return u;
-}
-
-
 /*!
    If \a on is true, this function returns the number of
    1-bits stored in the bit array; otherwise the number
@ -203,17 +185,17 @@ int QBitArray::count(bool on) const
    const quint8 *const end = reinterpret_cast<const quint8 *>(d.end());

    while (bits + 7 <= end) {
-        quint64 v = qUnalignedLoad<quint64>(bits);
+        quint64 v = qFromUnaligned<quint64>(bits);
        bits += 8;
        numBits += int(qPopulationCount(v));
    }
    if (bits + 3 <= end) {
-        quint32 v = qUnalignedLoad<quint32>(bits);
+        quint32 v = qFromUnaligned<quint32>(bits);
        bits += 4;
        numBits += int(qPopulationCount(v));
    }
    if (bits + 1 < end) {
-        quint16 v = qUnalignedLoad<quint16>(bits);
+        quint16 v = qFromUnaligned<quint16>(bits);
        bits += 2;
        numBits += int(qPopulationCount(v));
    }
--- a/src/corelib/tools/qbytearray.cpp
+++ b/src/corelib/tools/qbytearray.cpp
@ -46,6 +46,7 @@
 #include "qlocale.h"
 #include "qlocale_p.h"
 #include "qlocale_tools_p.h"
+#include "private/qnumeric_p.h"
 #include "qstringalgorithms_p.h"
 #include "qscopedpointer.h"
 #include "qbytearray_p.h"
@ -128,17 +129,104 @@ int qFindByteArray(
    const char *haystack0, int haystackLen, int from,
    const char *needle0, int needleLen);

+/*
+ * This pair of functions is declared in qtools_p.h and is used by the Qt
+ * containers to allocate memory and grow the memory block during append
+ * operations.
+ *
+ * They take size_t parameters and return size_t so they will change sizes
+ * according to the pointer width. However, knowing Qt containers store the
+ * container size and element indexes in ints, these functions never return a
+ * size larger than INT_MAX. This is done by casting the element count and
+ * memory block size to int in several comparisons: the check for negative is
+ * very fast on most platforms as the code only needs to check the sign bit.
+ *
+ * These functions return SIZE_MAX on overflow, which can be passed to malloc()
+ * and will surely cause a NULL return (there's no way you can allocate a
+ * memory block the size of your entire VM space).
+ */

-int qAllocMore(int alloc, int extra) Q_DECL_NOTHROW
+/*!
+    \internal
+    \since 5.7
+
+    Returns the memory block size for a container containing \a elementCount
+    elements, each of \a elementSize bytes, plus a header of \a headerSize
+    bytes. That is, this function returns \c
+      {elementCount * elementSize + headerSize}
+
+    but unlike the simple calculation, it checks for overflows during the
+    multiplication and the addition.
+
+    Both \a elementCount and \a headerSize can be zero, but \a elementSize
+    cannot.
+
+    This function returns SIZE_MAX (~0) on overflow or if the memory block size
+    would not fit an int.
+*/
+size_t qCalculateBlockSize(size_t elementCount, size_t elementSize, size_t headerSize) Q_DECL_NOTHROW
 {
-    Q_ASSERT(alloc >= 0 && extra >= 0 && extra <= MaxAllocSize);
-    Q_ASSERT_X(alloc <= MaxAllocSize - extra, "qAllocMore", "Requested size is too large!");
+    unsigned count = unsigned(elementCount);
+    unsigned size = unsigned(elementSize);
+    unsigned header = unsigned(headerSize);
+    Q_ASSERT(elementSize);
+    Q_ASSERT(size == elementSize);
+    Q_ASSERT(header == headerSize);

-    unsigned nalloc = qNextPowerOfTwo(alloc + extra);
+    if (Q_UNLIKELY(count != elementCount))
+        return std::numeric_limits<size_t>::max();

-    Q_ASSERT(nalloc > unsigned(alloc + extra));
+    unsigned bytes;
+    if (Q_UNLIKELY(mul_overflow(size, count, &bytes)) ||
+            Q_UNLIKELY(add_overflow(bytes, header, &bytes)))
+        return std::numeric_limits<size_t>::max();
+    if (Q_UNLIKELY(int(bytes) < 0))     // catches bytes >= 2GB
+        return std::numeric_limits<size_t>::max();

-    return nalloc - extra;
+    return bytes;
+}
+
+/*!
+    \internal
+    \since 5.7
+
+    Returns the memory block size and the number of elements that will fit in
+    that block for a container containing \a elementCount elements, each of \a
+    elementSize bytes, plus a header of \a headerSize bytes. This function
+    assumes the container will grow and pre-allocates a growth factor.
+
+    Both \a elementCount and \a headerSize can be zero, but \a elementSize
+    cannot.
+
+    This function returns SIZE_MAX (~0) on overflow or if the memory block size
+    would not fit an int.
+
+    \note The memory block may contain up to \a elementSize - 1 bytes more than
+    needed.
+*/
+CalculateGrowingBlockSizeResult
+qCalculateGrowingBlockSize(size_t elementCount, size_t elementSize, size_t headerSize) Q_DECL_NOTHROW
+{
+    CalculateGrowingBlockSizeResult result = {
+        std::numeric_limits<size_t>::max(),std::numeric_limits<size_t>::max()
+    };
+
+    unsigned bytes = unsigned(qCalculateBlockSize(elementCount, elementSize, headerSize));
+    if (int(bytes) < 0)     // catches std::numeric_limits<size_t>::max()
+        return result;
+
+    unsigned morebytes = qNextPowerOfTwo(bytes);
+    if (Q_UNLIKELY(int(morebytes) < 0)) {
+        // catches morebytes == 2GB
+        // grow by half the difference between bytes and morebytes
+        bytes += (morebytes - bytes) / 2;
+    } else {
+        bytes = morebytes;
+    }
+
+    result.elementCount = (bytes - unsigned(headerSize)) / unsigned(elementSize);
+    result.size = bytes;
+    return result;
 }

 /*****************************************************************************
@ -1618,12 +1706,16 @@ void QByteArray::reallocData(uint alloc, Data::AllocationOptions options)
            Data::deallocate(d);
        d = x;
    } else {
+        size_t blockSize;
        if (options & Data::Grow) {
-            if (alloc > MaxByteArraySize)
-                qBadAlloc();
-            alloc = qAllocMore(alloc, sizeof(Data));
+            auto r = qCalculateGrowingBlockSize(alloc, sizeof(QChar), sizeof(Data));
+            blockSize = r.size;
+            alloc = uint(r.elementCount);
+        } else {
+            blockSize = qCalculateBlockSize(alloc, sizeof(QChar), sizeof(Data));
        }
-        Data *x = static_cast<Data *>(::realloc(d, sizeof(Data) + alloc));
+
+        Data *x = static_cast<Data *>(::realloc(d, blockSize));
        Q_CHECK_PTR(x);
        x->alloc = alloc;
        x->capacityReserved = (options & Data::CapacityReserved) ? 1 : 0;
--- a/src/corelib/tools/qcryptographichash.cpp
+++ b/src/corelib/tools/qcryptographichash.cpp
@ -95,9 +95,29 @@ static SHA3Final * const sha3Final = Final;
    available on all platforms (MSVC 2008, for example), we #define them to the
    Qt equivalents.
 */
+
+#ifdef uint64_t
+#undef uint64_t
+#endif
+
 #define uint64_t QT_PREPEND_NAMESPACE(quint64)
+
+#ifdef uint32_t
+#undef uint32_t
+#endif
+
 #define uint32_t QT_PREPEND_NAMESPACE(quint32)
+
+#ifdef uint8_t
+#undef uint8_t
+#endif
+
 #define uint8_t QT_PREPEND_NAMESPACE(quint8)
+
+#ifdef int_least16_t
+#undef int_least16_t
+#endif
+
 #define int_least16_t QT_PREPEND_NAMESPACE(qint16)

 // Header from rfc6234 with 1 modification:
--- a/src/corelib/tools/qdatetime.cpp
+++ b/src/corelib/tools/qdatetime.cpp
@ -2158,7 +2158,7 @@ static int qt_timezone()
        //   number of seconds west of UTC.
        // - It also takes DST into account, so we need to adjust it to always
        //   get the Standard Time offset.
-        return -t.tm_gmtoff + (t.tm_isdst ? SECS_PER_HOUR : 0L);
+        return -t.tm_gmtoff + (t.tm_isdst ? (long)SECS_PER_HOUR : 0L);
 #elif defined(Q_OS_INTEGRITY)
        return 0;
 #else
--- a/src/corelib/tools/qdatetimeparser.cpp
+++ b/src/corelib/tools/qdatetimeparser.cpp
@ -708,17 +708,18 @@ int QDateTimeParser::parseSection(const QDateTime &currentValue, int sectionInde
    }

    const int sectionmaxsize = sectionMaxSize(sectionIndex);
-    QString sectiontext = text.mid(index, sectionmaxsize);
-    int sectiontextSize = sectiontext.size();
+    QStringRef sectionTextRef = text.midRef(index, sectionmaxsize);
+    int sectiontextSize = sectionTextRef.size();

    QDTPDEBUG << "sectionValue for" << sn.name()
-              << "with text" << text << "and st" << sectiontext
+              << "with text" << text << "and st" << sectionTextRef
              << text.midRef(index, sectionmaxsize)
              << index;

    int used = 0;
    switch (sn.type) {
    case AmPmSection: {
+        QString sectiontext = sectionTextRef.toString();
        const int ampm = findAmPm(sectiontext, sectionIndex, &used);
        switch (ampm) {
        case AM: // sectiontext == AM
@ -750,6 +751,7 @@ int QDateTimeParser::parseSection(const QDateTime &currentValue, int sectionInde
    case DayOfWeekSectionShort:
    case DayOfWeekSectionLong:
        if (sn.count >= 3) {
+            QString sectiontext = sectionTextRef.toString();
            if (sn.type == MonthSection) {
                int min = 1;
                const QDate minDate = getMinimum().date();
@ -788,7 +790,7 @@ int QDateTimeParser::parseSection(const QDateTime &currentValue, int sectionInde
            int last = -1;
            used = -1;

-            QString digitsStr(sectiontext);
+            QStringRef digitsStr = sectionTextRef;
            for (int i = 0; i < sectiontextSize; ++i) {
                if (digitsStr.at(i).isSpace()) {
                    sectiontextSize = i;
@ -809,7 +811,7 @@ int QDateTimeParser::parseSection(const QDateTime &currentValue, int sectionInde
                    }
                }
                if (ok && tmp <= absMax) {
-                    QDTPDEBUG << sectiontext.leftRef(digits) << tmp << digits;
+                    QDTPDEBUG << sectionTextRef.left(digits) << tmp << digits;
                    last = tmp;
                    used = digits;
                    break;
@ -817,13 +819,13 @@ int QDateTimeParser::parseSection(const QDateTime &currentValue, int sectionInde
            }

            if (last == -1) {
-                QChar first(sectiontext.at(0));
+                QChar first(sectionTextRef.at(0));
                if (separators.at(sectionIndex + 1).startsWith(first)) {
                    used = 0;
                    state = Intermediate;
                } else {
                    state = Invalid;
-                    QDTPDEBUG << "invalid because" << sectiontext << "can't become a uint" << last << ok;
+                    QDTPDEBUG << "invalid because" << sectionTextRef << "can't become a uint" << last << ok;
                }
            } else {
                num += last;
@ -1565,7 +1567,7 @@ QString QDateTimeParser::SectionNode::format() const
  number that is within min and max.
 */

-bool QDateTimeParser::potentialValue(const QString &str, int min, int max, int index,
+bool QDateTimeParser::potentialValue(const QStringRef &str, int min, int max, int index,
                                     const QDateTime &currentValue, int insert) const
 {
    if (str.isEmpty()) {
@ -1592,8 +1594,7 @@ bool QDateTimeParser::potentialValue(const QString &str, int min, int max, int i
            if (potentialValue(str + QLatin1Char('0' + j), min, max, index, currentValue, insert)) {
                return true;
            } else if (insert >= 0) {
-                QString tmp = str;
-                tmp.insert(insert, QLatin1Char('0' + j));
+                const QString tmp = str.left(insert) + QLatin1Char('0' + j) + str.mid(insert);
                if (potentialValue(tmp, min, max, index, currentValue, insert))
                    return true;
            }
@ -1603,7 +1604,7 @@ bool QDateTimeParser::potentialValue(const QString &str, int min, int max, int i
    return false;
 }

-bool QDateTimeParser::skipToNextSection(int index, const QDateTime &current, const QString &text) const
+bool QDateTimeParser::skipToNextSection(int index, const QDateTime &current, const QStringRef &text) const
 {
    Q_ASSERT(current >= getMinimum() && current <= getMaximum());

--- a/src/corelib/tools/qdatetimeparser_p.h
+++ b/src/corelib/tools/qdatetimeparser_p.h
@ -214,9 +214,19 @@ public:
                QString *dayName = 0, int *used = 0) const;
 #endif
    AmPmFinder findAmPm(QString &str, int index, int *used = 0) const;
-    bool potentialValue(const QString &str, int min, int max, int index,
+    bool potentialValue(const QStringRef &str, int min, int max, int index,
                        const QDateTime &currentValue, int insert) const;
-    bool skipToNextSection(int section, const QDateTime &current, const QString &sectionText) const;
+    bool potentialValue(const QString &str, int min, int max, int index,
+                        const QDateTime &currentValue, int insert) const
+    {
+        return potentialValue(QStringRef(&str), min, max, index, currentValue, insert);
+    }
+
+    bool skipToNextSection(int section, const QDateTime &current, const QStringRef &sectionText) const;
+    bool skipToNextSection(int section, const QDateTime &current, const QString &sectionText) const
+    {
+        return skipToNextSection(section, current, QStringRef(&sectionText));
+    }

    QString stateName(State s) const;

--- a/src/corelib/tools/qhash.cpp
+++ b/src/corelib/tools/qhash.cpp
@ -58,6 +58,7 @@
 #include <qbytearray.h>
 #include <qdatetime.h>
 #include <qbasicatomic.h>
+#include <qendian.h>
 #include <private/qsimd_p.h>

 #ifndef QT_BOOTSTRAPPED
@ -112,24 +113,24 @@ static uint crc32(const Char *ptr, size_t len, uint h)

    p += 8;
    for ( ; p <= e; p += 8)
-        h2 = _mm_crc32_u64(h2, qUnalignedLoad<qlonglong>(p - 8));
+        h2 = _mm_crc32_u64(h2, qFromUnaligned<qlonglong>(p - 8));
    h = h2;
    p -= 8;

    len = e - p;
    if (len & 4) {
-        h = _mm_crc32_u32(h, qUnalignedLoad<uint>(p));
+        h = _mm_crc32_u32(h, qFromUnaligned<uint>(p));
        p += 4;
    }
 #  else
    p += 4;
    for ( ; p <= e; p += 4)
-        h = _mm_crc32_u32(h, qUnalignedLoad<uint>(p - 4));
+        h = _mm_crc32_u32(h, qFromUnaligned<uint>(p - 4));
    p -= 4;
    len = e - p;
 #  endif
    if (len & 2) {
-        h = _mm_crc32_u16(h, qUnalignedLoad<ushort>(p));
+        h = _mm_crc32_u16(h, qFromUnaligned<ushort>(p));
        p += 2;
    }
    if (sizeof(Char) == 1 && len & 1)
--- a/src/corelib/tools/qlist.cpp
+++ b/src/corelib/tools/qlist.cpp
@ -60,15 +60,6 @@ QT_BEGIN_NAMESPACE

 const QListData::Data QListData::shared_null = { Q_REFCOUNT_INITIALIZE_STATIC, 0, 0, 0, { 0 } };

-static int grow(int size)
-{
-    if (size_t(size) > (MaxAllocSize - QListData::DataHeaderSize) / sizeof(void *))
-        qBadAlloc();
-    // dear compiler: don't optimize me out.
-    volatile int x = qAllocMore(size * sizeof(void *), QListData::DataHeaderSize) / sizeof(void *);
-    return x;
-}
-
 /*!
 *  Detaches the QListData by allocating new memory for a list which will be bigger
 *  than the copied one and is expected to grow further.
@ -84,12 +75,12 @@ QListData::Data *QListData::detach_grow(int *idx, int num)
    Data *x = d;
    int l = x->end - x->begin;
    int nl = l + num;
-    int alloc = grow(nl);
-    Data* t = static_cast<Data *>(::malloc(DataHeaderSize + alloc * sizeof(void *)));
+    auto blockInfo = qCalculateGrowingBlockSize(nl, sizeof(void *), DataHeaderSize);
+    Data* t = static_cast<Data *>(::malloc(blockInfo.size));
    Q_CHECK_PTR(t);
+    t->alloc = int(uint(blockInfo.elementCount));

    t->ref.initializeOwned();
-    t->alloc = alloc;
    // The space reservation algorithm's optimization is biased towards appending:
    // Something which looks like an append will put the data at the beginning,
    // while something which looks like a prepend will put it in the middle
@ -99,12 +90,12 @@ QListData::Data *QListData::detach_grow(int *idx, int num)
    int bg;
    if (*idx < 0) {
        *idx = 0;
-        bg = (alloc - nl) >> 1;
+        bg = (t->alloc - nl) >> 1;
    } else if (*idx > l) {
        *idx = l;
        bg = 0;
    } else if (*idx < (l >> 1)) {
-        bg = (alloc - nl) >> 1;
+        bg = (t->alloc - nl) >> 1;
    } else {
        bg = 0;
    }
@ -126,7 +117,7 @@ QListData::Data *QListData::detach_grow(int *idx, int num)
 QListData::Data *QListData::detach(int alloc)
 {
    Data *x = d;
-    Data* t = static_cast<Data *>(::malloc(DataHeaderSize + alloc * sizeof(void *)));
+    Data* t = static_cast<Data *>(::malloc(qCalculateBlockSize(alloc, sizeof(void*), DataHeaderSize)));
    Q_CHECK_PTR(t);

    t->ref.initializeOwned();
@ -146,7 +137,7 @@ QListData::Data *QListData::detach(int alloc)
 void QListData::realloc(int alloc)
 {
    Q_ASSERT(!d->ref.isShared());
-    Data *x = static_cast<Data *>(::realloc(d, DataHeaderSize + alloc * sizeof(void *)));
+    Data *x = static_cast<Data *>(::realloc(d, qCalculateBlockSize(alloc, sizeof(void *), DataHeaderSize)));
    Q_CHECK_PTR(x);

    d = x;
@ -158,12 +149,12 @@ void QListData::realloc(int alloc)
 void QListData::realloc_grow(int growth)
 {
    Q_ASSERT(!d->ref.isShared());
-    int alloc = grow(d->alloc + growth);
-    Data *x = static_cast<Data *>(::realloc(d, DataHeaderSize + alloc * sizeof(void *)));
+    auto r = qCalculateGrowingBlockSize(d->alloc + growth, sizeof(void *), DataHeaderSize);
+    Data *x = static_cast<Data *>(::realloc(d, r.size));
    Q_CHECK_PTR(x);

    d = x;
-    d->alloc = alloc;
+    d->alloc = int(uint(r.elementCount));
 }

 void QListData::dispose(Data *d)
--- a/src/corelib/tools/qmessageauthenticationcode.cpp
+++ b/src/corelib/tools/qmessageauthenticationcode.cpp
@ -46,9 +46,29 @@
    available on all platforms (MSVC 2008, for example), we #define them to the
    Qt equivalents.
 */
+
+#ifdef uint64_t
+#undef uint64_t
+#endif
+
 #define uint64_t QT_PREPEND_NAMESPACE(quint64)
+
+#ifdef uint32_t
+#undef uint32_t
+#endif
+
 #define uint32_t QT_PREPEND_NAMESPACE(quint32)
+
+#ifdef uint8_t
+#undef uint8_t
+#endif
+
 #define uint8_t QT_PREPEND_NAMESPACE(quint8)
+
+#ifdef int_least16_t
+#undef int_least16_t
+#endif
+
 #define int_least16_t QT_PREPEND_NAMESPACE(qint16)

 // Header from rfc6234 with 1 modification:
--- a/src/corelib/tools/qsimd.cpp
+++ b/src/corelib/tools/qsimd.cpp
@ -724,26 +724,4 @@ void qDumpCPUFeatures()
    puts("");
 }

-/*!
-    \internal
-    \fn T qUnalignedLoad(const void *ptr)
-    \since 5.6.1
-
-    Loads a \c{T} from address \a ptr, which may be misaligned.
-
-    Use of this function avoid the undefined behavior that the C++ standard
-    otherwise attributes to unaligned loads.
-*/
-
-/*!
-    \internal
-    \fn void qUnalignedStore(void *ptr, T t)
-    \since 5.6.1
-
-    Stores \a t to address \a ptr, which may be misaligned.
-
-    Use of this function avoid the undefined behavior that the C++ standard
-    otherwise attributes to unaligned stores.
-*/
-
 QT_END_NAMESPACE
--- a/src/corelib/tools/qstring.cpp
+++ b/src/corelib/tools/qstring.cpp
@ -581,7 +581,7 @@ static int ucstrncmp(const QChar *a, const uchar *c, int l)
    // we'll read uc[offset..offset+7] (16 bytes) and c[offset..offset+7] (8 bytes)
    if (uc + offset + 7 < e) {
        // same, but we're using an 8-byte load
-        __m128i chunk = _mm_cvtsi64_si128(qUnalignedLoad<long long>(c + offset));
+        __m128i chunk = _mm_cvtsi64_si128(qFromUnaligned<long long>(c + offset));
        __m128i secondHalf = _mm_unpacklo_epi8(chunk, nullmask);

        __m128i ucdata = _mm_loadu_si128((const __m128i*)(uc + offset));
@ -1757,10 +1757,13 @@ void QString::resize(int size, QChar fillChar)

 void QString::reallocData(uint alloc, bool grow)
 {
+    size_t blockSize;
    if (grow) {
-        if (alloc > (uint(MaxAllocSize) - sizeof(Data)) / sizeof(QChar))
-            qBadAlloc();
-        alloc = qAllocMore(alloc * sizeof(QChar), sizeof(Data)) / sizeof(QChar);
+        auto r = qCalculateGrowingBlockSize(alloc, sizeof(QChar), sizeof(Data));
+        blockSize = r.size;
+        alloc = uint(r.elementCount);
+    } else {
+        blockSize = qCalculateBlockSize(alloc, sizeof(QChar), sizeof(Data));
    }

    if (d->ref.isShared() || IS_RAW_DATA(d)) {
@ -1774,7 +1777,7 @@ void QString::reallocData(uint alloc, bool grow)
            Data::deallocate(d);
        d = x;
    } else {
-        Data *p = static_cast<Data *>(::realloc(d, sizeof(Data) + alloc * sizeof(QChar)));
+        Data *p = static_cast<Data *>(::realloc(d, blockSize));
        Q_CHECK_PTR(p);
        d = p;
        d->alloc = alloc;
@ -2343,8 +2346,7 @@ QString &QString::remove(QChar ch, Qt::CaseSensitivity cs)
 */
 QString &QString::replace(int pos, int len, const QString &after)
 {
-    QString copy = after;
-    return replace(pos, len, copy.constData(), copy.length());
+    return replace(pos, len, after.constData(), after.length());
 }

 /*!
--- a/src/corelib/tools/qtimezoneprivate_tz.cpp
+++ b/src/corelib/tools/qtimezoneprivate_tz.cpp
@ -47,6 +47,8 @@

 #include <qdebug.h>

+#include "qlocale_tools_p.h"
+
 #include <algorithm>

 QT_BEGIN_NAMESPACE
@ -376,39 +378,126 @@ static QDate calculatePosixDate(const QByteArray &dateRule, int year)
    }
 }

-static QTime parsePosixTime(const QByteArray &timeRule)
+// returns the time in seconds, INT_MIN if we failed to parse
+static int parsePosixTime(const char *begin, const char *end)
 {
-    // Format "HH:mm:ss", put check parts count just in case
-    QList<QByteArray> parts = timeRule.split(':');
-    int count = parts.count();
-    if (count == 3)
-        return QTime(parts.at(0).toInt(), parts.at(1).toInt(), parts.at(2).toInt());
-    else if (count == 2)
-        return QTime(parts.at(0).toInt(), parts.at(1).toInt(), 0);
-    else if (count == 1)
-        return QTime(parts.at(0).toInt(), 0, 0);
-    return QTime(2, 0, 0);
+    // Format "hh[:mm[:ss]]"
+    int hour, min = 0, sec = 0;
+
+    // Note that the calls to qstrtoll do *not* check the end pointer, which
+    // means they proceed until they find a non-digit. We check that we're
+    // still in range at the end, but we may have read from past end. It's the
+    // caller's responsibility to ensure that begin is part of a
+    // null-terminated string.
+
+    bool ok = false;
+    hour = qstrtoll(begin, &begin, 10, &ok);
+    if (!ok || hour < 0)
+        return INT_MIN;
+    if (begin < end && *begin == ':') {
+        // minutes
+        ++begin;
+        min = qstrtoll(begin, &begin, 10, &ok);
+        if (!ok || min < 0)
+            return INT_MIN;
+
+        if (begin < end && *begin == ':') {
+            // seconds
+            ++begin;
+            sec = qstrtoll(begin, &begin, 10, &ok);
+            if (!ok || sec < 0)
+                return INT_MIN;
+        }
+    }
+
+    // we must have consumed everything
+    if (begin != end)
+        return INT_MIN;
+
+    return (hour * 60 + min) * 60 + sec;
 }

-static int parsePosixOffset(const QByteArray &timeRule)
+static QTime parsePosixTransitionTime(const QByteArray &timeRule)
+{
+    // Format "hh[:mm[:ss]]"
+    int value = parsePosixTime(timeRule.constBegin(), timeRule.constEnd());
+    if (value == INT_MIN) {
+        // if we failed to parse, return 02:00
+        return QTime(2, 0, 0);
+    }
+    return QTime::fromMSecsSinceStartOfDay(value * 1000);
+}
+
+static int parsePosixOffset(const char *begin, const char *end)
 {
    // Format "[+|-]hh[:mm[:ss]]"
-    QList<QByteArray> parts = timeRule.split(':');
-    int count = parts.count();
-    if (count == 3) {
-        int hour = parts.at(0).toInt();
-        int sign = hour >= 0 ? -1 : 1;
-        return sign * ((qAbs(hour) * 60 * 60) + (parts.at(1).toInt() * 60) + parts.at(2).toInt());
-    } else if (count == 2) {
-        int hour = parts.at(0).toInt();
-        int sign = hour >= 0 ? -1 : 1;
-        return sign * ((qAbs(hour) * 60 * 60) + (parts.at(1).toInt() * 60));
-    } else if (count == 1) {
-        int hour = parts.at(0).toInt();
-        int sign = hour >= 0 ? -1 : 1;
-        return sign * (qAbs(hour) * 60 * 60);
+    // note that the sign is inverted because POSIX counts in hours West of GMT
+    bool negate = true;
+    if (*begin == '+') {
+        ++begin;
+    } else if (*begin == '-') {
+        negate = false;
+        ++begin;
    }
-    return 0;
+
+    int value = parsePosixTime(begin, end);
+    if (value == INT_MIN)
+        return value;
+    return negate ? -value : value;
+}
+
+static inline bool asciiIsLetter(char ch)
+{
+    ch |= 0x20; // lowercases if it is a letter, otherwise just corrupts ch
+    return ch >= 'a' && ch <= 'z';
+}
+
+// Returns the zone name, the offset (in seconds) and advances \a begin to
+// where the parsing ended. Returns a zone of INT_MIN in case an offset
+// couldn't be read.
+static QPair<QString, int> parsePosixZoneNameAndOffset(const char *&pos, const char *end)
+{
+    static const char offsetChars[] = "0123456789:";
+    QPair<QString, int> result = qMakePair(QString(), INT_MIN);
+
+    const char *nameBegin = pos;
+    const char *nameEnd;
+    Q_ASSERT(pos < end);
+
+    if (*pos == '<') {
+        nameBegin = pos + 1;    // skip the '<'
+        nameEnd = nameBegin;
+        while (nameEnd < end && *nameEnd != '>') {
+            // POSIX says only alphanumeric, but we allow anything
+            ++nameEnd;
+        }
+        pos = nameEnd + 1;      // skip the '>'
+    } else {
+        nameBegin = pos;
+        nameEnd = nameBegin;
+        while (nameEnd < end && asciiIsLetter(*nameEnd))
+            ++nameEnd;
+        pos = nameEnd;
+    }
+    if (nameEnd - nameBegin < 3)
+        return result;  // name must be at least 3 characters long
+
+    // zone offset, form [+-]hh:mm:ss
+    const char *zoneBegin = pos;
+    const char *zoneEnd = pos;
+    if (zoneEnd < end && (zoneEnd[0] == '+' || zoneEnd[0] == '-'))
+        ++zoneEnd;
+    while (zoneEnd < end) {
+        if (strchr(offsetChars, char(*zoneEnd)) == NULL)
+            break;
+        ++zoneEnd;
+    }
+
+    result.first = QString::fromUtf8(nameBegin, nameEnd - nameBegin);
+    if (zoneEnd > zoneBegin)
+        result.second = parsePosixOffset(zoneBegin, zoneEnd);
+    pos = zoneEnd;
+    return result;
 }

 static QVector<QTimeZonePrivate::Data> calculatePosixTransitions(const QByteArray &posixRule,
@ -425,58 +514,45 @@ static QVector<QTimeZonePrivate::Data> calculatePosixTransitions(const QByteArra

    // POSIX Format is like "TZ=CST6CDT,M3.2.0/2:00:00,M11.1.0/2:00:00"
    // i.e. "std offset dst [offset],start[/time],end[/time]"
-    // See http://www.gnu.org/software/libc/manual/html_node/TZ-Variable.html
+    // See the section about TZ at http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap08.html
    QList<QByteArray> parts = posixRule.split(',');

-    QString name = QString::fromUtf8(parts.at(0));
-    QString stdName;
-    QString stdOffsetString;
-    QString dstName;
-    QString dstOffsetString;
-    bool parsedStdName = false;
-    bool parsedStdOffset = false;
-    for (int i = 0; i < name.size(); ++i) {
-        if (name.at(i).isLetter()) {
-            if (parsedStdName) {
-                parsedStdOffset = true;
-                dstName.append(name.at(i));
-            } else {
-                stdName.append(name.at(i));
+    QPair<QString, int> stdZone, dstZone;
+    {
+        const QByteArray &zoneinfo = parts.at(0);
+        const char *begin = zoneinfo.constBegin();
+
+        stdZone = parsePosixZoneNameAndOffset(begin, zoneinfo.constEnd());
+        if (stdZone.second == INT_MIN) {
+            stdZone.second = 0;     // reset to UTC if we failed to parse
+        } else if (begin < zoneinfo.constEnd()) {
+            dstZone = parsePosixZoneNameAndOffset(begin, zoneinfo.constEnd());
+            if (dstZone.second == INT_MIN) {
+                // if the dst offset isn't provided, it is 1 hour ahead of the standard offset
+                dstZone.second = stdZone.second + (60 * 60);
            }
-        } else {
-            parsedStdName = true;
-            if (parsedStdOffset)
-                dstOffsetString.append(name.at(i));
-            else
-                stdOffsetString.append(name.at(i));
        }
    }

-    int utcOffset = parsePosixOffset(stdOffsetString.toUtf8());
-
    // If only the name part then no transitions
    if (parts.count() == 1) {
        QTimeZonePrivate::Data data;
        data.atMSecsSinceEpoch = lastTranMSecs;
-        data.offsetFromUtc = utcOffset;
-        data.standardTimeOffset = utcOffset;
+        data.offsetFromUtc = stdZone.second;
+        data.standardTimeOffset = stdZone.second;
        data.daylightTimeOffset = 0;
-        data.abbreviation = stdName;
+        data.abbreviation = stdZone.first;
        result << data;
        return result;
    }

-    // If not populated the total dst offset is 1 hour
-    int dstOffset = utcOffset + (60 * 60);
-    if (!dstOffsetString.isEmpty())
-        dstOffset = parsePosixOffset(dstOffsetString.toUtf8());

    // Get the std to dst transtion details
    QList<QByteArray> dstParts = parts.at(1).split('/');
    QByteArray dstDateRule = dstParts.at(0);
    QTime dstTime;
    if (dstParts.count() > 1)
-        dstTime = parsePosixTime(dstParts.at(1));
+        dstTime = parsePosixTransitionTime(dstParts.at(1));
    else
        dstTime = QTime(2, 0, 0);

@ -485,25 +561,25 @@ static QVector<QTimeZonePrivate::Data> calculatePosixTransitions(const QByteArra
    QByteArray stdDateRule = stdParts.at(0);
    QTime stdTime;
    if (stdParts.count() > 1)
-        stdTime = parsePosixTime(stdParts.at(1));
+        stdTime = parsePosixTransitionTime(stdParts.at(1));
    else
        stdTime = QTime(2, 0, 0);

    for (int year = startYear; year <= endYear; ++year) {
        QTimeZonePrivate::Data dstData;
        QDateTime dst(calculatePosixDate(dstDateRule, year), dstTime, Qt::UTC);
-        dstData.atMSecsSinceEpoch = dst.toMSecsSinceEpoch() - (utcOffset * 1000);
-        dstData.offsetFromUtc = dstOffset;
-        dstData.standardTimeOffset = utcOffset;
-        dstData.daylightTimeOffset = dstOffset - utcOffset;
-        dstData.abbreviation = dstName;
+        dstData.atMSecsSinceEpoch = dst.toMSecsSinceEpoch() - (stdZone.second * 1000);
+        dstData.offsetFromUtc = dstZone.second;
+        dstData.standardTimeOffset = stdZone.second;
+        dstData.daylightTimeOffset = dstZone.second - stdZone.second;
+        dstData.abbreviation = dstZone.first;
        QTimeZonePrivate::Data stdData;
        QDateTime std(calculatePosixDate(stdDateRule, year), stdTime, Qt::UTC);
-        stdData.atMSecsSinceEpoch = std.toMSecsSinceEpoch() - (dstOffset * 1000);
-        stdData.offsetFromUtc = utcOffset;
-        stdData.standardTimeOffset = utcOffset;
+        stdData.atMSecsSinceEpoch = std.toMSecsSinceEpoch() - (dstZone.second * 1000);
+        stdData.offsetFromUtc = stdZone.second;
+        stdData.standardTimeOffset = stdZone.second;
        stdData.daylightTimeOffset = 0;
-        stdData.abbreviation = stdName;
+        stdData.abbreviation = stdZone.first;
        // Part of the high year will overflow
        if (year == 292278994 && (dstData.atMSecsSinceEpoch < 0 || stdData.atMSecsSinceEpoch < 0)) {
            if (dstData.atMSecsSinceEpoch > 0) {
--- a/src/corelib/tools/qtools_p.h
+++ b/src/corelib/tools/qtools_p.h
@ -52,7 +52,7 @@
 //

 #include "QtCore/qglobal.h"
-#include <limits>
+#include <limits.h>

 QT_BEGIN_NAMESPACE

@ -88,11 +88,19 @@ Q_DECL_CONSTEXPR inline int fromOct(uint c) Q_DECL_NOTHROW

 // We typically need an extra bit for qNextPowerOfTwo when determining the next allocation size.
 enum {
-    MaxAllocSize = (1 << (std::numeric_limits<int>::digits - 1)) - 1
+    MaxAllocSize = INT_MAX
+};
+
+struct CalculateGrowingBlockSizeResult {
+    size_t size;
+    size_t elementCount;
 };

 // implemented in qbytearray.cpp
-int Q_CORE_EXPORT qAllocMore(int alloc, int extra) Q_DECL_NOTHROW;
+size_t Q_CORE_EXPORT Q_DECL_CONST_FUNCTION
+qCalculateBlockSize(size_t elementCount, size_t elementSize, size_t headerSize = 0) Q_DECL_NOTHROW;
+CalculateGrowingBlockSizeResult Q_CORE_EXPORT Q_DECL_CONST_FUNCTION
+qCalculateGrowingBlockSize(size_t elementCount, size_t elementSize, size_t headerSize = 0) Q_DECL_NOTHROW ;

 QT_END_NAMESPACE

--- a/src/corelib/tools/qvector.h
+++ b/src/corelib/tools/qvector.h
@ -736,7 +736,7 @@ typename QVector<T>::iterator QVector<T>::erase(iterator abegin, iterator aend)
    const int itemsUntouched = abegin - d->begin();

    // FIXME we could do a proper realloc, which copy constructs only needed data.
-    // FIXME we ara about to delete data maybe it is good time to shrink?
+    // FIXME we are about to delete data - maybe it is good time to shrink?
    // FIXME the shrink is also an issue in removeLast, that is just a copy + reduce of this.
    if (d->alloc) {
        detach();
@ -756,7 +756,11 @@ typename QVector<T>::iterator QVector<T>::erase(iterator abegin, iterator aend)
            }
        } else {
            destruct(abegin, aend);
-            memmove(abegin, aend, (d->size - itemsToErase - itemsUntouched) * sizeof(T));
+            // QTBUG-53605: static_cast<void *> masks clang errors of the form
+            // error: destination for this 'memmove' call is a pointer to class containing a dynamic class
+            // FIXME maybe use std::is_polymorphic (as soon as allowed) to avoid the memmove
+            memmove(static_cast<void *>(abegin), static_cast<void *>(aend),
+                    (d->size - itemsToErase - itemsUntouched) * sizeof(T));
        }
        d->size -= itemsToErase;
    }
--- a/src/corelib/xml/qxmlstream.cpp
+++ b/src/corelib/xml/qxmlstream.cpp
@ -3025,10 +3025,14 @@ void QXmlStreamWriterPrivate::checkIfASCIICompatibleCodec()
 {
 #ifndef QT_NO_TEXTCODEC
    Q_ASSERT(encoder);
-    // assumes ASCII-compatibility for all 8-bit encodings
-    QChar space = QLatin1Char(' ');
-    const QByteArray bytes = encoder->fromUnicode(&space, 1);
-    isCodecASCIICompatible = (bytes.count() == 1);
+    // test ASCII-compatibility using the letter 'a'
+    QChar letterA = QLatin1Char('a');
+    const QByteArray bytesA = encoder->fromUnicode(&letterA, 1);
+    const bool isCodecASCIICompatibleA = (bytesA.count() == 1) && (bytesA[0] == 0x61) ;
+    QChar letterLess = QLatin1Char('<');
+    const QByteArray bytesLess = encoder->fromUnicode(&letterLess, 1);
+    const bool isCodecASCIICompatibleLess = (bytesLess.count() == 1) && (bytesLess[0] == 0x3C) ;
+    isCodecASCIICompatible = isCodecASCIICompatibleA && isCodecASCIICompatibleLess ;
 #else
    isCodecASCIICompatible = true;
 #endif
@ -3790,7 +3794,8 @@ void QXmlStreamWriter::writeStartDocument(const QString &version)
 #ifdef QT_NO_TEXTCODEC
        d->write("iso-8859-1");
 #else
-        d->write(d->codec->name().constData(), d->codec->name().length());
+        const QByteArray name = d->codec->name();
+        d->write(name.constData(), name.length());
 #endif
    }
    d->write("\"?>");
@ -3813,7 +3818,8 @@ void QXmlStreamWriter::writeStartDocument(const QString &version, bool standalon
 #ifdef QT_NO_TEXTCODEC
        d->write("iso-8859-1");
 #else
-        d->write(d->codec->name().constData(), d->codec->name().length());
+        const QByteArray name = d->codec->name();
+        d->write(name.constData(), name.length());
 #endif
    }
    if (standalone)
--- a/src/gui/doc/snippets/code/src_gui_kernel_qclipboard.cpp
+++ b/src/gui/doc/snippets/code/src_gui_kernel_qclipboard.cpp
@ -49,7 +49,7 @@
 ****************************************************************************/

 //! [0]
-QClipboard *clipboard = QApplication::clipboard();
+QClipboard *clipboard = QGuiApplication::clipboard();
 QString originalText = clipboard->text();
 ...
 clipboard->setText(newText);
--- a/src/gui/image/qbmphandler.cpp
+++ b/src/gui/image/qbmphandler.cpp
@ -289,6 +289,12 @@ static bool read_dib_body(QDataStream &s, const BMP_INFOHDR &bi, int offset, int
            format = QImage::Format_Mono;
    }

+    if (depth != 32) {
+        ncols = bi.biClrUsed ? bi.biClrUsed : 1 << nbits;
+        if (ncols < 1 || ncols > 256) // sanity check - don't run out of mem if color table is broken
+            return false;
+    }
+
    if (bi.biHeight < 0)
        h = -h;                  // support images with negative height

@ -296,19 +302,15 @@ static bool read_dib_body(QDataStream &s, const BMP_INFOHDR &bi, int offset, int
        image = QImage(w, h, format);
        if (image.isNull())                        // could not create image
            return false;
-    }
-
-    if (depth != 32) {
-        ncols = bi.biClrUsed ? bi.biClrUsed : 1 << nbits;
-        if (ncols < 1 || ncols > 256) // sanity check - don't run out of mem if color table is broken
-            return false;
-        image.setColorCount(ncols);
+        if (ncols)
+            image.setColorCount(ncols);            // Ensure valid QImage
    }

    image.setDotsPerMeterX(bi.biXPelsPerMeter);
    image.setDotsPerMeterY(bi.biYPelsPerMeter);

    if (ncols > 0) {                                // read color table
+        image.setColorCount(ncols);
        uchar rgb[4];
        int   rgb_len = t == BMP_OLD ? 3 : 4;
        for (int i=0; i<ncols; i++) {
--- a/src/gui/image/qicon.cpp
+++ b/src/gui/image/qicon.cpp
@ -284,7 +284,7 @@ QPixmap QPixmapIconEngine::pixmap(const QSize &size, QIcon::Mode mode, QIcon::St
    if (pm.isNull()) {
        int idx = pixmaps.count();
        while (--idx >= 0) {
-            if (pe == &pixmaps[idx]) {
+            if (pe == &pixmaps.at(idx)) {
                pixmaps.remove(idx);
                break;
            }
--- a/Show More
+++ b/Show More