Merge remote-tracking branch 'origin/5.9' into 5.10

 Conflicts:
	src/plugins/platforms/windows/qwindowswindow.cpp
	tests/auto/widgets/kernel/qaction/tst_qaction.cpp

Change-Id: Ia017a825ed2ca2d53ac586f4ae48df6f65818d40

28 files changed, 812 insertions, 112 deletions

diff --git a/src/3rdparty/freetype/BDF-LICENSE.txt b/src/3rdparty/freetype/BDF-LICENSE.txt
new file mode 100644
index 0000000000..6fb375cf8b
--- /dev/null
+++ b/src/3rdparty/freetype/BDF-LICENSE.txt
@@ -0,0 +1,43 @@
+Copyright (C) 2001-2002 by Francesco Zappa Nardelli
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+*** Portions of the driver (that is, bdflib.c and bdf.h):
+
+Copyright 2000 Computing Research Labs, New Mexico State University
+Copyright 2001-2002, 2011 Francesco Zappa Nardelli
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the "Software"),
+to deal in the Software without restriction, including without limitation
+the rights to use, copy, modify, merge, publish, distribute, sublicense,
+and/or sell copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+THE COMPUTING RESEARCH LAB OR NEW MEXICO STATE UNIVERSITY BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT
+OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
+THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/src/3rdparty/freetype/LICENSE.txt b/src/3rdparty/freetype/LICENSE.txt
new file mode 100644
index 0000000000..382225f105
--- /dev/null
+++ b/src/3rdparty/freetype/LICENSE.txt
@@ -0,0 +1,551 @@
+The  FreeType 2  font  engine is  copyrighted  work and  cannot be  used
+legally  without a  software license.   In  order to  make this  project
+usable  to a vast  majority of  developers, we  distribute it  under two
+mutually exclusive open-source licenses.
+
+This means  that *you* must choose  *one* of the  two licenses described
+below, then obey  all its terms and conditions when  using FreeType 2 in
+any of your projects or products.
+
+  - The FreeType License, found in  the file `FTL.TXT', which is similar
+    to the original BSD license *with* an advertising clause that forces
+    you  to  explicitly cite  the  FreeType  project  in your  product's
+    documentation.  All  details are in the license  file.  This license
+    is  suited  to products  which  don't  use  the GNU  General  Public
+    License.
+
+    Note that  this license  is  compatible  to the  GNU General  Public
+    License version 3, but not version 2.
+
+  - The GNU General Public License version 2, found in  `GPLv2.TXT' (any
+    later version can be used  also), for programs which already use the
+    GPL.  Note  that the  FTL is  incompatible  with  GPLv2 due  to  its
+    advertisement clause.
+
+The contributed BDF and PCF drivers come with a license similar  to that
+of the X Window System.  It is compatible to the above two licenses (see
+file src/bdf/README and src/pcf/README).
+
+The gzip module uses the zlib license (see src/gzip/zlib.h) which too is
+compatible to the above two licenses.
+
+The MD5 checksum support (only used for debugging in development builds)
+is in the public domain.
+
+
+--- FDL.TXT ---
+
+                    The FreeType Project LICENSE
+                    ----------------------------
+
+                            2006-Jan-27
+
+                    Copyright 1996-2002, 2006 by
+          David Turner, Robert Wilhelm, and Werner Lemberg
+
+
+
+Introduction
+============
+
+  The FreeType  Project is distributed in  several archive packages;
+  some of them may contain, in addition to the FreeType font engine,
+  various tools and  contributions which rely on, or  relate to, the
+  FreeType Project.
+
+  This  license applies  to all  files found  in such  packages, and
+  which do not  fall under their own explicit  license.  The license
+  affects  thus  the  FreeType   font  engine,  the  test  programs,
+  documentation and makefiles, at the very least.
+
+  This  license   was  inspired  by  the  BSD,   Artistic,  and  IJG
+  (Independent JPEG  Group) licenses, which  all encourage inclusion
+  and  use of  free  software in  commercial  and freeware  products
+  alike.  As a consequence, its main points are that:
+
+    o We don't promise that this software works. However, we will be
+      interested in any kind of bug reports. (`as is' distribution)
+
+    o You can  use this software for whatever you  want, in parts or
+      full form, without having to pay us. (`royalty-free' usage)
+
+    o You may not pretend that  you wrote this software.  If you use
+      it, or  only parts of it,  in a program,  you must acknowledge
+      somewhere  in  your  documentation  that  you  have  used  the
+      FreeType code. (`credits')
+
+  We  specifically  permit  and  encourage  the  inclusion  of  this
+  software, with  or without modifications,  in commercial products.
+  We  disclaim  all warranties  covering  The  FreeType Project  and
+  assume no liability related to The FreeType Project.
+
+
+  Finally,  many  people  asked  us  for  a  preferred  form  for  a
+  credit/disclaimer to use in compliance with this license.  We thus
+  encourage you to use the following text:
+
+   """
+    Portions of this software are copyright © <year> The FreeType
+    Project (www.freetype.org).  All rights reserved.
+   """
+
+  Please replace <year> with the value from the FreeType version you
+  actually use.
+
+
+Legal Terms
+===========
+
+0. Definitions
+--------------
+
+  Throughout this license,  the terms `package', `FreeType Project',
+  and  `FreeType  archive' refer  to  the  set  of files  originally
+  distributed  by the  authors  (David Turner,  Robert Wilhelm,  and
+  Werner Lemberg) as the `FreeType Project', be they named as alpha,
+  beta or final release.
+
+  `You' refers to  the licensee, or person using  the project, where
+  `using' is a generic term including compiling the project's source
+  code as  well as linking it  to form a  `program' or `executable'.
+  This  program is  referred to  as  `a program  using the  FreeType
+  engine'.
+
+  This  license applies  to all  files distributed  in  the original
+  FreeType  Project,   including  all  source   code,  binaries  and
+  documentation,  unless  otherwise  stated   in  the  file  in  its
+  original, unmodified form as  distributed in the original archive.
+  If you are  unsure whether or not a particular  file is covered by
+  this license, you must contact us to verify this.
+
+  The FreeType  Project is copyright (C) 1996-2000  by David Turner,
+  Robert Wilhelm, and Werner Lemberg.  All rights reserved except as
+  specified below.
+
+1. No Warranty
+--------------
+
+  THE FREETYPE PROJECT  IS PROVIDED `AS IS' WITHOUT  WARRANTY OF ANY
+  KIND, EITHER  EXPRESS OR IMPLIED,  INCLUDING, BUT NOT  LIMITED TO,
+  WARRANTIES  OF  MERCHANTABILITY   AND  FITNESS  FOR  A  PARTICULAR
+  PURPOSE.  IN NO EVENT WILL ANY OF THE AUTHORS OR COPYRIGHT HOLDERS
+  BE LIABLE  FOR ANY DAMAGES CAUSED  BY THE USE OR  THE INABILITY TO
+  USE, OF THE FREETYPE PROJECT.
+
+2. Redistribution
+-----------------
+
+  This  license  grants  a  worldwide, royalty-free,  perpetual  and
+  irrevocable right  and license to use,  execute, perform, compile,
+  display,  copy,   create  derivative  works   of,  distribute  and
+  sublicense the  FreeType Project (in  both source and  object code
+  forms)  and  derivative works  thereof  for  any  purpose; and  to
+  authorize others  to exercise  some or all  of the  rights granted
+  herein, subject to the following conditions:
+
+    o Redistribution of  source code  must retain this  license file
+      (`FTL.TXT') unaltered; any  additions, deletions or changes to
+      the original  files must be clearly  indicated in accompanying
+      documentation.   The  copyright   notices  of  the  unaltered,
+      original  files must  be  preserved in  all  copies of  source
+      files.
+
+    o Redistribution in binary form must provide a  disclaimer  that
+      states  that  the software is based in part of the work of the
+      FreeType Team,  in  the  distribution  documentation.  We also
+      encourage you to put an URL to the FreeType web page  in  your
+      documentation, though this isn't mandatory.
+
+  These conditions  apply to any  software derived from or  based on
+  the FreeType Project,  not just the unmodified files.   If you use
+  our work, you  must acknowledge us.  However, no  fee need be paid
+  to us.
+
+3. Advertising
+--------------
+
+  Neither the  FreeType authors and  contributors nor you  shall use
+  the name of the  other for commercial, advertising, or promotional
+  purposes without specific prior written permission.
+
+  We suggest,  but do not require, that  you use one or  more of the
+  following phrases to refer  to this software in your documentation
+  or advertising  materials: `FreeType Project',  `FreeType Engine',
+  `FreeType library', or `FreeType Distribution'.
+
+  As  you have  not signed  this license,  you are  not  required to
+  accept  it.   However,  as  the FreeType  Project  is  copyrighted
+  material, only  this license, or  another one contracted  with the
+  authors, grants you  the right to use, distribute,  and modify it.
+  Therefore,  by  using,  distributing,  or modifying  the  FreeType
+  Project, you indicate that you understand and accept all the terms
+  of this license.
+
+4. Contacts
+-----------
+
+  There are two mailing lists related to FreeType:
+
+    o freetype@nongnu.org
+
+      Discusses general use and applications of FreeType, as well as
+      future and  wanted additions to the  library and distribution.
+      If  you are looking  for support,  start in  this list  if you
+      haven't found anything to help you in the documentation.
+
+    o freetype-devel@nongnu.org
+
+      Discusses bugs,  as well  as engine internals,  design issues,
+      specific licenses, porting, etc.
+
+  Our home page can be found at
+
+    http://www.freetype.org
+
+--- end of FDL.TXT ---
+
+--- GPLv2.TXT ---
+
+		    GNU GENERAL PUBLIC LICENSE
+		       Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.
+     51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+			    Preamble
+
+  The licenses for most software are designed to take away your
+freedom to share and change it.  By contrast, the GNU General Public
+License is intended to guarantee your freedom to share and change free
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+General Public License applies to most of the Free Software
+Foundation's software and to any other program whose authors commit to
+using it.  (Some other Free Software Foundation software is covered by
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+  When we speak of free software, we are referring to freedom, not
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+this service if you wish), that you receive source code or can get it
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+These restrictions translate to certain responsibilities for you if you
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+  For example, if you distribute copies of such a program, whether
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+   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+  0. This License applies to any program or other work which contains
+a notice placed by the copyright holder saying it may be distributed
+under the terms of this General Public License.  The "Program", below,
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+Activities other than copying, distribution and modification are not
+covered by this License; they are outside its scope.  The act of
+running the Program is not restricted, and the output from the Program
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+Program (independent of having been made by running the Program).
+Whether that is true depends on what the Program does.
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+  1. You may copy and distribute verbatim copies of the Program's
+source code as you receive it, in any medium, provided that you
+conspicuously and appropriately publish on each copy an appropriate
+copyright notice and disclaimer of warranty; keep intact all the
+notices that refer to this License and to the absence of any warranty;
+and give any other recipients of the Program a copy of this License
+along with the Program.
+
+You may charge a fee for the physical act of transferring a copy, and
+you may at your option offer warranty protection in exchange for a fee.
+
+  2. You may modify your copy or copies of the Program or any portion
+of it, thus forming a work based on the Program, and copy and
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+above, provided that you also meet all of these conditions:
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+    stating that you changed the files and the date of any change.
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+    part thereof, to be licensed as a whole at no charge to all third
+    parties under the terms of this License.
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+    when run, you must cause it, when started running for such
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+    a warranty) and that users may redistribute the program under
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+These requirements apply to the modified work as a whole.  If
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+and can be reasonably considered independent and separate works in
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+exercise the right to control the distribution of derivative or
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+under Section 2) in object code or executable form under the terms of
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+
+This section is intended to make thoroughly clear what is believed to
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+Software Foundation.  If the Program does not specify a version number of
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+
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+
+			    NO WARRANTY
+
+  11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
+FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
+OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
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+
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+INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
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+PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGES.
+
+		     END OF TERMS AND CONDITIONS
+
+	    How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+convey the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program is interactive, make it output a short notice like this
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+
+    Gnomovision version 69, Copyright (C) year  name of author
+    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, the commands you use may
+be called something other than `show w' and `show c'; they could even be
+mouse-clicks or menu items--whatever suits your program.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the program, if
+necessary.  Here is a sample; alter the names:
+
+  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+  `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+  <signature of Ty Coon>, 1 April 1989
+  Ty Coon, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs.  If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library.  If this is what you want to do, use the GNU Library General
+Public License instead of this License.
+
+--- end of GPLv2.TXT ---
+
diff --git a/src/3rdparty/freetype/PCF-LICENSE.txt b/src/3rdparty/freetype/PCF-LICENSE.txt
new file mode 100644
index 0000000000..3f3a3b3f0c
--- /dev/null
+++ b/src/3rdparty/freetype/PCF-LICENSE.txt
@@ -0,0 +1,20 @@
+Copyright (C) 2000 by Francesco Zappa Nardelli
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/src/3rdparty/freetype/ZLIB-LICENSE.txt b/src/3rdparty/freetype/ZLIB-LICENSE.txt
new file mode 100644
index 0000000000..abbdfcc017
--- /dev/null
+++ b/src/3rdparty/freetype/ZLIB-LICENSE.txt
@@ -0,0 +1,20 @@
+Copyright (C) 1995-2002 Jean-loup Gailly and Mark Adler
+
+This software is provided 'as-is', without any express or implied
+warranty.  In no event will the authors be held liable for any damages
+arising from the use of this software.
+
+Permission is granted to anyone to use this software for any purpose,
+including commercial applications, and to alter it and redistribute it
+freely, subject to the following restrictions:
+
+1. The origin of this software must not be misrepresented; you must not
+   claim that you wrote the original software. If you use this software
+   in a product, an acknowledgment in the product documentation would be
+   appreciated but is not required.
+2. Altered source versions must be plainly marked as such, and must not be
+   misrepresented as being the original software.
+3. This notice may not be removed or altered from any source distribution.
+
+Jean-loup Gailly        Mark Adler
+jloup@gzip.org          madler@alumni.caltech.edu
diff --git a/src/3rdparty/freetype/qt_attribution.json b/src/3rdparty/freetype/qt_attribution.json
index 6c11f1b617..e00f2062b0 100644
--- a/src/3rdparty/freetype/qt_attribution.json
+++ b/src/3rdparty/freetype/qt_attribution.json
@@ -1,13 +1,56 @@
-{
-    "Id": "freetype",
-    "Name": "Freetype 2",
-    "QDocModule": "qtgui",
-    "QtUsage": "Optionally used in Qt GUI and platform plugins. Configure with -no-freetype, or -system-freetype to avoid.",
-
-    "Description": "FreeType is a freely available software library to render fonts.",
-    "Homepage": "http://www.freetype.org",
-    "License": "Freetype Project License or GNU General Public License v2.0 only",
-    "LicenseId": "FTL or GPL-2.0",
-    "LicenseFile": "docs/LICENSE.TXT",
-    "Copyright": "Copyright 2006-2015 by David Turner, Robert Wilhelm, and Werner Lemberg."
-}
+[
+    {
+        "Id": "freetype",
+        "Name": "Freetype 2",
+        "QDocModule": "qtgui",
+        "QtUsage": "Optionally used in Qt GUI and platform plugins. Configure with -no-freetype, or -system-freetype to avoid.",
+
+        "Description": "FreeType is a freely available software library to render fonts.",
+        "Homepage": "http://www.freetype.org",
+        "License": "Freetype Project License or GNU General Public License v2.0 only",
+        "LicenseId": "FTL OR GPL-2.0",
+        "LicenseFile": "LICENSE.TXT",
+        "Copyright": "Copyright 2006-2015 by David Turner, Robert Wilhelm, and Werner Lemberg."
+    },
+    {
+        "Id": "freetype-zlib",
+        "Name": "Freetype 2 - zlib",
+        "QDocModule": "qtgui",
+        "QtUsage": "Optionally used in Qt GUI and platform plugins. Configure with -no-freetype, or -system-freetype to avoid.",
+
+        "Description": "FreeType is a freely available software library to render fonts.",
+        "Homepage": "http://www.freetype.org",
+        "License": "zlib License",
+        "LicenseId": "Zlib",
+        "LicenseFile": "ZLIB-LICENSE.TXT",
+        "Copyright": "Copyright (C) 1995-2002 Jean-loup Gailly and Mark Adler"
+    },
+    {
+        "Id": "freetype-bdf",
+        "Name": "Freetype 2 - Bitmap Distribution Format (BDF) support",
+        "QDocModule": "qtgui",
+        "QtUsage": "Optionally used in Qt GUI and platform plugins. Configure with -no-freetype, or -system-freetype to avoid.",
+
+        "Description": "FreeType is a freely available software library to render fonts.",
+        "Homepage": "http://www.freetype.org",
+        "License": "MIT License",
+        "LicenseId": "MIT",
+        "LicenseFile": "BDF-LICENSE.TXT",
+        "Copyright": "Copyright (C) 2001-2002 by Francesco Zappa Nardelli
+Copyright 2000 Computing Research Labs, New Mexico State University
+Copyright 2001-2002, 2011 Francesco Zappa Nardelli"
+    },
+    {
+        "Id": "freetype-pcf",
+        "Name": "Freetype 2 - Portable Compiled Format (PCF) support",
+        "QDocModule": "qtgui",
+        "QtUsage": "Optionally used in Qt GUI and platform plugins. Configure with -no-freetype, or -system-freetype to avoid.",
+
+        "Description": "FreeType is a freely available software library to render fonts.",
+        "Homepage": "http://www.freetype.org",
+        "License": "MIT License",
+        "LicenseId": "MIT",
+        "LicenseFile": "PCF-LICENSE.TXT",
+        "Copyright": "Copyright (C) 2000 by Francesco Zappa Nardelli"
+    }
+]
diff --git a/src/corelib/io/qfileselector.cpp b/src/corelib/io/qfileselector.cpp
index 9db67f2f9b..0ba8b124f7 100644
--- a/src/corelib/io/qfileselector.cpp
+++ b/src/corelib/io/qfileselector.cpp
@@ -146,7 +146,7 @@ QFileSelectorPrivate::QFileSelectorPrivate()
     Selectors normally available are
     \list
     \li platform, any of the following strings which match the platform the application is running
-        on (list not exhaustive): android, ios, osx, darwin, mac, linux, wince, unix, windows.
+        on (list not exhaustive): android, ios, osx, darwin, mac, macos, linux, qnx, unix, windows.
         On Linux, if it can be determined, the name of the distribution too, like debian,
         fedora or opensuse.
     \li locale, same as QLocale().name().
@@ -373,8 +373,8 @@ QStringList QFileSelectorPrivate::platformSelectors()
 #  endif
 #elif defined(Q_OS_UNIX)
     ret << QStringLiteral("unix");
-#  if !defined(Q_OS_ANDROID)
-    // we don't want "linux" for Android
+#  if !defined(Q_OS_ANDROID) && !defined(Q_OS_QNX)
+    // we don't want "linux" for Android or two instances of "qnx" for QNX
     ret << QSysInfo::kernelType();
 #     ifdef Q_OS_MAC
     ret << QStringLiteral("mac"); // compatibility, since kernelType() is "darwin"
diff --git a/src/corelib/io/qurl.cpp b/src/corelib/io/qurl.cpp
index a499dc2d30..cf7ed130ba 100644
--- a/src/corelib/io/qurl.cpp
+++ b/src/corelib/io/qurl.cpp
@@ -1037,6 +1037,7 @@ inline void QUrlPrivate::setAuthority(const QString &auth, int from, int end, QU
 {
     sectionIsPresent &= ~Authority;
     sectionIsPresent |= Host;
+    port = -1;
 
     // we never actually _loop_
     while (from != end) {
@@ -1061,10 +1062,8 @@ inline void QUrlPrivate::setAuthority(const QString &auth, int from, int end, QU
             }
         }
 
-        if (colonIndex == end - 1) {
-            // found a colon but no digits after it
-            port = -1;
-        } else if (uint(colonIndex) < uint(end)) {
+        if (uint(colonIndex) < uint(end) - 1) {
+            // found a colon with digits after it
             unsigned long x = 0;
             for (int i = colonIndex + 1; i < end; ++i) {
                 ushort c = auth.at(i).unicode();
@@ -1083,8 +1082,6 @@ inline void QUrlPrivate::setAuthority(const QString &auth, int from, int end, QU
                 if (mode == QUrl::StrictMode)
                     break;
             }
-        } else {
-            port = -1;
         }
 
         setHost(auth, from, qMin<uint>(end, colonIndex), mode);
@@ -1644,8 +1641,7 @@ inline QUrlPrivate::ErrorCode QUrlPrivate::validityError(QString *source, int *p
     if (path.isEmpty())
         return NoError;
     if (path.at(0) == QLatin1Char('/')) {
-        if (sectionIsPresent & QUrlPrivate::Authority || port != -1 ||
-                path.length() == 1 || path.at(1) != QLatin1Char('/'))
+        if (hasAuthority() || path.length() == 1 || path.at(1) != QLatin1Char('/'))
             return NoError;
         if (source) {
             *source = path;
@@ -2474,6 +2470,8 @@ void QUrl::setPort(int port)
     }
 
     d->port = port;
+    if (port != -1)
+        d->sectionIsPresent |= QUrlPrivate::Host;
 }
 
 /*!
diff --git a/src/corelib/kernel/qfunctions_winrt.h b/src/corelib/kernel/qfunctions_winrt.h
index 9b33f8b120..d0c44be683 100644
--- a/src/corelib/kernel/qfunctions_winrt.h
+++ b/src/corelib/kernel/qfunctions_winrt.h
@@ -44,6 +44,7 @@
 
 #ifdef Q_OS_WIN
 
+#include <QtCore/QCoreApplication>
 #include <QtCore/QThread>
 #include <QtCore/QAbstractEventDispatcher>
 #include <QtCore/QElapsedTimer>
diff --git a/src/corelib/statemachine/qstatemachine.cpp b/src/corelib/statemachine/qstatemachine.cpp
index 1d80da55c9..2808ba2ced 100644
--- a/src/corelib/statemachine/qstatemachine.cpp
+++ b/src/corelib/statemachine/qstatemachine.cpp
@@ -411,7 +411,7 @@ QStateMachinePrivate::~QStateMachinePrivate()
     qDeleteAll(internalEventQueue);
     qDeleteAll(externalEventQueue);
 
-    for (QHash<int, DelayedEvent>::const_iterator it = delayedEvents.begin(), eit = delayedEvents.end(); it != eit; ++it) {
+    for (QHash<int, DelayedEvent>::const_iterator it = delayedEvents.cbegin(), eit = delayedEvents.cend(); it != eit; ++it) {
         delete it.value().event;
     }
 }
diff --git a/src/dbus/qdbusinternalfilters.cpp b/src/dbus/qdbusinternalfilters.cpp
index 0927f326f2..0ef5061b5f 100644
--- a/src/dbus/qdbusinternalfilters.cpp
+++ b/src/dbus/qdbusinternalfilters.cpp
@@ -407,7 +407,7 @@ QDBusMessage qDBusPropertySet(const QDBusConnectionPrivate::ObjectTreeNode &node
             QDBusAdaptorConnector::AdaptorMap::ConstIterator it;
             it = std::lower_bound(connector->adaptors.constBegin(), connector->adaptors.constEnd(),
                                   interface_name);
-            if (it != connector->adaptors.end() && interface_name == QLatin1String(it->interface)) {
+            if (it != connector->adaptors.cend() && interface_name == QLatin1String(it->interface)) {
                 return propertyWriteReply(msg, interface_name, property_name,
                                           writeProperty(it->adaptor, property_name, value));
             }
diff --git a/src/gui/image/qimagereader.cpp b/src/gui/image/qimagereader.cpp
index 7a5a630495..7086e102ea 100644
--- a/src/gui/image/qimagereader.cpp
+++ b/src/gui/image/qimagereader.cpp
@@ -72,6 +72,11 @@
     that occurred, or errorString() to get a human readable
     description of what went wrong.
 
+    \note QImageReader assumes exclusive control over the file or
+    device that is assigned. Any attempts to modify the assigned file
+    or device during the lifetime of the QImageReader object will
+    yield undefined results.
+
     \section1 Formats
 
     Call supportedImageFormats() for a list of formats that
@@ -1220,10 +1225,13 @@ float QImageReader::gamma() const
     see if the image data is valid. read() may still return false
     after canRead() returns \c true, if the image data is corrupt.
 
+    \note A QMimeDatabase lookup is normally a better approach than this
+    function for identifying potentially non-image files or data.
+
     For images that support animation, canRead() returns \c false when
     all frames have been read.
 
-    \sa read(), supportedImageFormats()
+    \sa read(), supportedImageFormats(), QMimeDatabase
 */
 bool QImageReader::canRead() const
 {
diff --git a/src/gui/text/qtexttable.cpp b/src/gui/text/qtexttable.cpp
index e4a3c2b915..9639c18d2b 100644
--- a/src/gui/text/qtexttable.cpp
+++ b/src/gui/text/qtexttable.cpp
@@ -1048,7 +1048,7 @@ void QTextTable::mergeCells(int row, int column, int numRows, int numCols)
     QFragmentFindHelper helper(origCellPosition, p->fragmentMap());
     const auto begin = d->cells.cbegin();
     const auto it = std::lower_bound(begin, d->cells.cend(), helper);
-    Q_ASSERT(it != d->cells.end());
+    Q_ASSERT(it != d->cells.cend());
     Q_ASSERT(!(helper < *it));
     Q_ASSERT(*it == cellFragment);
     const int insertCellIndex = it - begin;
@@ -1082,7 +1082,7 @@ void QTextTable::mergeCells(int row, int column, int numRows, int numCols)
                 QFragmentFindHelper helper(pos, p->fragmentMap());
                 const auto begin = d->cells.cbegin();
                 const auto it = std::lower_bound(begin, d->cells.cend(), helper);
-                Q_ASSERT(it != d->cells.end());
+                Q_ASSERT(it != d->cells.cend());
                 Q_ASSERT(!(helper < *it));
                 Q_ASSERT(*it == fragment);
                 firstCellIndex = cellIndex = it - begin;
diff --git a/src/network/access/qhttp2protocolhandler_p.h b/src/network/access/qhttp2protocolhandler_p.h
index a006663491..dd209bd0ef 100644
--- a/src/network/access/qhttp2protocolhandler_p.h
+++ b/src/network/access/qhttp2protocolhandler_p.h
@@ -57,11 +57,11 @@
 
 #if !defined(QT_NO_HTTP)
 
-#include "http2/http2protocol_p.h"
-#include "http2/http2streams_p.h"
-#include "http2/http2frames_p.h"
-#include "http2/hpacktable_p.h"
-#include "http2/hpack_p.h"
+#include <private/http2protocol_p.h>
+#include <private/http2streams_p.h>
+#include <private/http2frames_p.h>
+#include <private/hpacktable_p.h>
+#include <private/hpack_p.h>
 
 #include <QtCore/qnamespace.h>
 #include <QtCore/qbytearray.h>
diff --git a/src/network/access/qnetworkreplyhttpimpl.cpp b/src/network/access/qnetworkreplyhttpimpl.cpp
index 46a2f2f208..382da0db5a 100644
--- a/src/network/access/qnetworkreplyhttpimpl.cpp
+++ b/src/network/access/qnetworkreplyhttpimpl.cpp
@@ -182,6 +182,7 @@ QNetworkReplyHttpImpl::QNetworkReplyHttpImpl(QNetworkAccessManager* const manage
     : QNetworkReply(*new QNetworkReplyHttpImplPrivate, manager)
 {
     Q_D(QNetworkReplyHttpImpl);
+    Q_ASSERT(manager);
     d->manager = manager;
     d->managerPrivate = manager->d_func();
     d->request = request;
@@ -395,9 +396,9 @@ bool QNetworkReplyHttpImpl::canReadLine () const
 void QNetworkReplyHttpImpl::ignoreSslErrors()
 {
     Q_D(QNetworkReplyHttpImpl);
+    Q_ASSERT(d->managerPrivate);
 
-    if (d->managerPrivate && d->managerPrivate->stsEnabled
-        && d->managerPrivate->stsCache.isKnownHost(url())) {
+    if (d->managerPrivate->stsEnabled && d->managerPrivate->stsCache.isKnownHost(url())) {
         // We cannot ignore any Security Transport-related errors for this host.
         return;
     }
@@ -408,9 +409,9 @@ void QNetworkReplyHttpImpl::ignoreSslErrors()
 void QNetworkReplyHttpImpl::ignoreSslErrorsImplementation(const QList<QSslError> &errors)
 {
     Q_D(QNetworkReplyHttpImpl);
+    Q_ASSERT(d->managerPrivate);
 
-    if (d->managerPrivate && d->managerPrivate->stsEnabled
-        && d->managerPrivate->stsCache.isKnownHost(url())) {
+    if (d->managerPrivate->stsEnabled && d->managerPrivate->stsCache.isKnownHost(url())) {
         // We cannot ignore any Security Transport-related errors for this host.
         return;
     }
@@ -1118,16 +1119,14 @@ QNetworkAccessManager::Operation QNetworkReplyHttpImplPrivate::getRedirectOperat
     // HTTP status code can be used to decide if we can redirect with a GET
     // operation or not. See http://www.ietf.org/rfc/rfc2616.txt [Sec 10.3] for
     // more details
-    Q_UNUSED(httpStatus);
+
+    // We MUST keep using the verb that was used originally when being redirected with 307 or 308.
+    if (httpStatus == 307 || httpStatus == 308)
+        return currentOp;
 
     switch (currentOp) {
     case QNetworkAccessManager::HeadOperation:
         return QNetworkAccessManager::HeadOperation;
-    case QNetworkAccessManager::PostOperation:
-        // We MUST keep using POST when being redirected with 307 or 308.
-        if (statusCode == 307 || statusCode == 308)
-            return QNetworkAccessManager::PostOperation;
-        break;
     default:
         break;
     }
@@ -1154,6 +1153,8 @@ QNetworkRequest QNetworkReplyHttpImplPrivate::createRedirectRequest(const QNetwo
 void QNetworkReplyHttpImplPrivate::onRedirected(const QUrl &redirectUrl, int httpStatus, int maxRedirectsRemaining)
 {
     Q_Q(QNetworkReplyHttpImpl);
+    Q_ASSERT(manager);
+    Q_ASSERT(managerPrivate);
 
     if (isFinished)
         return;
@@ -1188,7 +1189,7 @@ void QNetworkReplyHttpImplPrivate::onRedirected(const QUrl &redirectUrl, int htt
     redirectRequest = createRedirectRequest(originalRequest, url, maxRedirectsRemaining);
     operation = getRedirectOperation(operation, httpStatus);
 
-    if (const QNetworkCookieJar *const cookieJar = (manager ? manager->cookieJar() : nullptr)) {
+    if (const QNetworkCookieJar *const cookieJar = manager->cookieJar()) {
         auto cookies = cookieJar->cookiesForUrl(url);
         if (!cookies.empty()) {
             redirectRequest.setHeader(QNetworkRequest::KnownHeaders::CookieHeader,
@@ -1205,6 +1206,7 @@ void QNetworkReplyHttpImplPrivate::onRedirected(const QUrl &redirectUrl, int htt
 void QNetworkReplyHttpImplPrivate::followRedirect()
 {
     Q_Q(QNetworkReplyHttpImpl);
+    Q_ASSERT(managerPrivate);
 
     rawHeaders.clear();
     cookedHeaders.clear();
@@ -1216,7 +1218,7 @@ void QNetworkReplyHttpImplPrivate::followRedirect()
     // If the original request didn't need a session (i.e. it was to localhost)
     // then we might not have a session open, to which to redirect, if the
     // new URL is remote.  When this happens, we need to open the session now:
-    if (managerPrivate && isSessionNeeded(url)) {
+    if (isSessionNeeded(url)) {
         if (auto session = managerPrivate->getNetworkSession()) {
             if (session->state() != QNetworkSession::State::Connected || !session->isOpen()) {
                 startWaitForSession(session);
@@ -2052,9 +2054,7 @@ void QNetworkReplyHttpImplPrivate::_q_bufferOutgoingData()
 void QNetworkReplyHttpImplPrivate::_q_networkSessionConnected()
 {
     Q_Q(QNetworkReplyHttpImpl);
-
-    if (!manager)
-        return;
+    Q_ASSERT(managerPrivate);
 
     QSharedPointer<QNetworkSession> session = managerPrivate->getNetworkSession();
     if (!session)
@@ -2184,28 +2184,27 @@ void QNetworkReplyHttpImplPrivate::finished()
     if (preMigrationDownloaded != Q_INT64_C(-1))
         totalSize = totalSize.toLongLong() + preMigrationDownloaded;
 
-    if (manager) {
 #ifndef QT_NO_BEARERMANAGEMENT
-        QSharedPointer<QNetworkSession> session = managerPrivate->getNetworkSession();
-        if (session && session->state() == QNetworkSession::Roaming &&
-            state == Working && errorCode != QNetworkReply::OperationCanceledError) {
-            // only content with a known size will fail with a temporary network failure error
-            if (!totalSize.isNull()) {
-                if (bytesDownloaded != totalSize) {
-                    if (migrateBackend()) {
-                        // either we are migrating or the request is finished/aborted
-                        if (state == Reconnecting || state == WaitingForSession) {
-                            return; // exit early if we are migrating.
-                        }
-                    } else {
-                        error(QNetworkReply::TemporaryNetworkFailureError,
-                              QNetworkReply::tr("Temporary network failure."));
+    Q_ASSERT(managerPrivate);
+    QSharedPointer<QNetworkSession> session = managerPrivate->getNetworkSession();
+    if (session && session->state() == QNetworkSession::Roaming &&
+        state == Working && errorCode != QNetworkReply::OperationCanceledError) {
+        // only content with a known size will fail with a temporary network failure error
+        if (!totalSize.isNull()) {
+            if (bytesDownloaded != totalSize) {
+                if (migrateBackend()) {
+                    // either we are migrating or the request is finished/aborted
+                    if (state == Reconnecting || state == WaitingForSession) {
+                        return; // exit early if we are migrating.
                     }
+                } else {
+                    error(QNetworkReply::TemporaryNetworkFailureError,
+                            QNetworkReply::tr("Temporary network failure."));
                 }
             }
         }
-#endif
     }
+#endif
 
     // if we don't know the total size of or we received everything save the cache
     if (totalSize.isNull() || totalSize == -1 || bytesDownloaded == totalSize)
@@ -2263,17 +2262,16 @@ void QNetworkReplyHttpImplPrivate::_q_metaDataChanged()
     Q_Q(QNetworkReplyHttpImpl);
     // 1. do we have cookies?
     // 2. are we allowed to set them?
-    if (manager) {
-        const auto it = cookedHeaders.constFind(QNetworkRequest::SetCookieHeader);
-        if (it != cookedHeaders.cend()
-            && request.attribute(QNetworkRequest::CookieSaveControlAttribute,
-                                 QNetworkRequest::Automatic).toInt() == QNetworkRequest::Automatic) {
-            QNetworkCookieJar *jar = manager->cookieJar();
-            if (jar) {
-                QList<QNetworkCookie> cookies =
-                    qvariant_cast<QList<QNetworkCookie> >(it.value());
-                jar->setCookiesFromUrl(cookies, url);
-            }
+    Q_ASSERT(manager);
+    const auto it = cookedHeaders.constFind(QNetworkRequest::SetCookieHeader);
+    if (it != cookedHeaders.cend()
+        && request.attribute(QNetworkRequest::CookieSaveControlAttribute,
+                                QNetworkRequest::Automatic).toInt() == QNetworkRequest::Automatic) {
+        QNetworkCookieJar *jar = manager->cookieJar();
+        if (jar) {
+            QList<QNetworkCookie> cookies =
+                qvariant_cast<QList<QNetworkCookie> >(it.value());
+            jar->setCookiesFromUrl(cookies, url);
         }
     }
     emit q->metaDataChanged();
diff --git a/src/network/ssl/qsslsocket.cpp b/src/network/ssl/qsslsocket.cpp
index 5c9ebac283..adff568f5b 100644
--- a/src/network/ssl/qsslsocket.cpp
+++ b/src/network/ssl/qsslsocket.cpp
@@ -1686,7 +1686,8 @@ bool QSslSocket::waitForDisconnected(int msecs)
 
     if (!d->plainSocket)
         return false;
-    if (d->mode == UnencryptedMode)
+    // Forward to the plain socket unless the connection is secure.
+    if (d->mode == UnencryptedMode && !d->autoStartHandshake)
         return d->plainSocket->waitForDisconnected(msecs);
 
     QElapsedTimer stopWatch;
@@ -1697,6 +1698,17 @@ bool QSslSocket::waitForDisconnected(int msecs)
         if (!waitForEncrypted(msecs))
             return false;
     }
+    // We are delaying the disconnect, if the write buffer is not empty.
+    // So, start the transmission.
+    if (!d->writeBuffer.isEmpty())
+        d->transmit();
+
+    // At this point, the socket might be disconnected, if disconnectFromHost()
+    // was called just after the connectToHostEncrypted() call. Also, we can
+    // lose the connection as a result of the transmit() call.
+    if (state() == UnconnectedState)
+        return true;
+
     bool retVal = d->plainSocket->waitForDisconnected(qt_subtract_from_timeout(msecs, stopWatch.elapsed()));
     if (!retVal) {
         setSocketState(d->plainSocket->state());
diff --git a/src/plugins/platforminputcontexts/compose/qcomposeplatforminputcontext.cpp b/src/plugins/platforminputcontexts/compose/qcomposeplatforminputcontext.cpp
index 6016d460fc..48693ccdb0 100644
--- a/src/plugins/platforminputcontexts/compose/qcomposeplatforminputcontext.cpp
+++ b/src/plugins/platforminputcontexts/compose/qcomposeplatforminputcontext.cpp
@@ -222,7 +222,7 @@ bool QComposeInputContext::checkComposeTable()
     int next = 1;
     do {
         // if we are at the end of the table, then we have nothing to do here
-        if (it + next != m_composeTable.end()) {
+        if (it + next != m_composeTable.constEnd()) {
             QComposeTableElement nextElem = *(it + next);
             if (isDuplicate(elem, nextElem)) {
                 elem = nextElem;
diff --git a/src/plugins/platforms/android/androidjniaccessibility.cpp b/src/plugins/platforms/android/androidjniaccessibility.cpp
index e4d670239f..a3bc58bb89 100644
--- a/src/plugins/platforms/android/androidjniaccessibility.cpp
+++ b/src/plugins/platforms/android/androidjniaccessibility.cpp
@@ -105,15 +105,15 @@ namespace QtAndroidAccessibility
     {
         QAccessibleInterface *iface = interfaceFromId(objectId);
         if (iface && iface->isValid()) {
-            jintArray jArray = env->NewIntArray(jsize(iface->childCount()));
-            for (int i = 0; i < iface->childCount(); ++i) {
+            const int childCount = iface->childCount();
+            QVarLengthArray<jint, 8> ifaceIdArray(childCount);
+            for (int i = 0; i < childCount; ++i) {
                 QAccessibleInterface *child = iface->child(i);
-                if (child && child->isValid()) {
-                    QAccessible::Id ifaceId = QAccessible::uniqueId(child);
-                    jint jid = ifaceId;
-                    env->SetIntArrayRegion(jArray, i, 1, &jid);
-                }
+                if (child && child->isValid())
+                    ifaceIdArray.append(QAccessible::uniqueId(child));
             }
+            jintArray jArray = env->NewIntArray(jsize(ifaceIdArray.count()));
+            env->SetIntArrayRegion(jArray, 0, ifaceIdArray.count(), ifaceIdArray.data());
             return jArray;
         }
 
diff --git a/src/plugins/platforms/cocoa/messages.cpp b/src/plugins/platforms/cocoa/messages.cpp
index 85b814ce1c..8eea1e654e 100644
--- a/src/plugins/platforms/cocoa/messages.cpp
+++ b/src/plugins/platforms/cocoa/messages.cpp
@@ -75,7 +75,7 @@ QString qt_mac_applicationmenu_string(int type)
 QPlatformMenuItem::MenuRole detectMenuRole(const QString &caption)
 {
     QString captionNoAmpersand(caption);
-    captionNoAmpersand.remove(QChar('&'));
+    captionNoAmpersand.remove(QLatin1Char('&'));
     const QString aboutString = QCoreApplication::translate("QCocoaMenuItem", "About");
     if (captionNoAmpersand.startsWith(aboutString, Qt::CaseInsensitive) || caption.endsWith(aboutString, Qt::CaseInsensitive))
         return QPlatformMenuItem::AboutRole;
diff --git a/src/plugins/platforms/cocoa/messages.h b/src/plugins/platforms/cocoa/messages.h
index a9c9cc42e5..e41898fe59 100644
--- a/src/plugins/platforms/cocoa/messages.h
+++ b/src/plugins/platforms/cocoa/messages.h
@@ -45,6 +45,17 @@
 
 QT_BEGIN_NAMESPACE
 
+enum {
+    ServicesAppMenuItem = 0,
+    HideAppMenuItem,
+    HideOthersAppMenuItem,
+    ShowAllAppMenuItem,
+    PreferencesAppMenuItem,
+    QuitAppMenuItem,
+    AboutAppMenuItem
+};
+
+
 QString msgAboutQt();
 
 QString qt_mac_applicationmenu_string(int type);
diff --git a/src/plugins/platforms/cocoa/qcocoamenuitem.mm b/src/plugins/platforms/cocoa/qcocoamenuitem.mm
index d135b244e0..606f1ed215 100644
--- a/src/plugins/platforms/cocoa/qcocoamenuitem.mm
+++ b/src/plugins/platforms/cocoa/qcocoamenuitem.mm
@@ -369,24 +369,20 @@ NSMenuItem *QCocoaMenuItem::sync()
     return m_native;
 }
 
-QT_BEGIN_NAMESPACE
-extern QString qt_mac_applicationmenu_string(int type);
-QT_END_NAMESPACE
-
 QString QCocoaMenuItem::mergeText()
 {
     QCocoaMenuLoader *loader = [QCocoaMenuLoader sharedMenuLoader];
     if (m_native == [loader aboutMenuItem]) {
-        return qt_mac_applicationmenu_string(6).arg(qt_mac_applicationName());
+        return qt_mac_applicationmenu_string(AboutAppMenuItem).arg(qt_mac_applicationName());
     } else if (m_native== [loader aboutQtMenuItem]) {
         if (m_text == QString("About Qt"))
             return msgAboutQt();
         else
             return m_text;
     } else if (m_native == [loader preferencesMenuItem]) {
-        return qt_mac_applicationmenu_string(4);
+        return qt_mac_applicationmenu_string(PreferencesAppMenuItem);
     } else if (m_native == [loader quitMenuItem]) {
-        return qt_mac_applicationmenu_string(5).arg(qt_mac_applicationName());
+        return qt_mac_applicationmenu_string(QuitAppMenuItem).arg(qt_mac_applicationName());
     } else if (m_text.contains('\t')) {
         return m_text.left(m_text.indexOf('\t'));
     }
diff --git a/src/plugins/platforms/cocoa/qcocoamenuloader.mm b/src/plugins/platforms/cocoa/qcocoamenuloader.mm
index 01a3c04afb..0d9bb5009d 100644
--- a/src/plugins/platforms/cocoa/qcocoamenuloader.mm
+++ b/src/plugins/platforms/cocoa/qcocoamenuloader.mm
@@ -47,14 +47,8 @@
 #include <QtCore/private/qcore_mac_p.h>
 #include <QtCore/private/qthread_p.h>
 #include <QtCore/qcoreapplication.h>
-#include <QtCore/qdir.h>
-#include <QtCore/qstring.h>
-#include <QtCore/qdebug.h>
 #include <QtGui/private/qguiapplication_p.h>
 
-QT_FORWARD_DECLARE_CLASS(QCFString)
-QT_FORWARD_DECLARE_CLASS(QString)
-
 @implementation QCocoaMenuLoader
 
 + (instancetype)sharedMenuLoader
@@ -314,13 +308,13 @@ QT_FORWARD_DECLARE_CLASS(QString)
 {
 
 #ifndef QT_NO_TRANSLATION
-    [servicesItem setTitle:qt_mac_applicationmenu_string(0).toNSString()];
-    [hideItem setTitle:qt_mac_applicationmenu_string(1).arg(qt_mac_applicationName()).toNSString()];
-    [hideAllOthersItem setTitle:qt_mac_applicationmenu_string(2).toNSString()];
-    [showAllItem setTitle:qt_mac_applicationmenu_string(3).toNSString()];
-    [preferencesItem setTitle:qt_mac_applicationmenu_string(4).toNSString()];
-    [quitItem setTitle:qt_mac_applicationmenu_string(5).arg(qt_mac_applicationName()).toNSString()];
-    [aboutItem setTitle:qt_mac_applicationmenu_string(6).arg(qt_mac_applicationName()).toNSString()];
+    [servicesItem setTitle:qt_mac_applicationmenu_string(ServicesAppMenuItem).toNSString()];
+    [hideItem setTitle:qt_mac_applicationmenu_string(HideAppMenuItem).arg(qt_mac_applicationName()).toNSString()];
+    [hideAllOthersItem setTitle:qt_mac_applicationmenu_string(HideOthersAppMenuItem).toNSString()];
+    [showAllItem setTitle:qt_mac_applicationmenu_string(ShowAllAppMenuItem).toNSString()];
+    [preferencesItem setTitle:qt_mac_applicationmenu_string(PreferencesAppMenuItem).toNSString()];
+    [quitItem setTitle:qt_mac_applicationmenu_string(QuitAppMenuItem).arg(qt_mac_applicationName()).toNSString()];
+    [aboutItem setTitle:qt_mac_applicationmenu_string(AboutAppMenuItem).arg(qt_mac_applicationName()).toNSString()];
 #endif
 }
 
diff --git a/src/plugins/platforms/windows/qwindowswindow.cpp b/src/plugins/platforms/windows/qwindowswindow.cpp
index e60f62e4a5..1d81fa9cd5 100644
--- a/src/plugins/platforms/windows/qwindowswindow.cpp
+++ b/src/plugins/platforms/windows/qwindowswindow.cpp
@@ -67,6 +67,7 @@
 #include <qpa/qwindowsysteminterface.h>
 
 #include <QtCore/QDebug>
+#include <QtCore/QLibraryInfo>
 
 #include <dwmapi.h>
 
@@ -1572,7 +1573,7 @@ void QWindowsWindow::setGeometry(const QRect &rectIn)
         setFlag(WithinSetGeometry);
         setGeometry_sys(rect);
         clearFlag(WithinSetGeometry);
-        if (m_data.geometry != rect) {
+        if (m_data.geometry != rect && (isVisible() || QLibraryInfo::isDebugBuild())) {
             qWarning("%s: Unable to set geometry %dx%d+%d+%d on %s/'%s'."
                      " Resulting geometry:  %dx%d+%d+%d "
                      "(frame: %d, %d, %d, %d, custom margin: %d, %d, %d, %d"
diff --git a/src/tools/moc/main.cpp b/src/tools/moc/main.cpp
index 18945f1ce5..075285e4ea 100644
--- a/src/tools/moc/main.cpp
+++ b/src/tools/moc/main.cpp
@@ -267,6 +267,7 @@ int runMoc(int argc, char **argv)
     QCommandLineOption prependIncludeOption(QStringLiteral("b"));
     prependIncludeOption.setDescription(QStringLiteral("Prepend #include <file> (preserve default include)."));
     prependIncludeOption.setValueName(QStringLiteral("file"));
+    prependIncludeOption.setFlags(QCommandLineOption::ShortOptionStyle);
     parser.addOption(prependIncludeOption);
 
     QCommandLineOption includeOption(QStringLiteral("include"));
diff --git a/src/tools/moc/preprocessor.cpp b/src/tools/moc/preprocessor.cpp
index 9a06fb38d0..a6725af924 100644
--- a/src/tools/moc/preprocessor.cpp
+++ b/src/tools/moc/preprocessor.cpp
@@ -992,7 +992,7 @@ static void mergeStringLiterals(Symbols *_symbols)
                 mergeSymbolLexem.reserve(literalsLength);
                 mergeSymbolLexem.append('"');
                 mergeSymbolLexem.append(mergeSymbolOriginalLexem);
-                for (Symbols::const_iterator j = mergeSymbol + 1; j != i; ++j)
+                for (Symbols::iterator j = mergeSymbol + 1; j != i; ++j)
                     mergeSymbolLexem.append(j->lex.constData() + j->from + 1, j->len - 2); // append j->unquotedLexem()
                 mergeSymbolLexem.append('"');
                 mergeSymbol->len = mergeSymbol->lex.length();
diff --git a/src/widgets/accessible/simplewidgets.cpp b/src/widgets/accessible/simplewidgets.cpp
index 73de51ff45..bacb00fe2e 100644
--- a/src/widgets/accessible/simplewidgets.cpp
+++ b/src/widgets/accessible/simplewidgets.cpp
@@ -953,7 +953,7 @@ QAccessibleWindowContainer::QAccessibleWindowContainer(QWidget *w)
 
 int QAccessibleWindowContainer::childCount() const
 {
-    if (container()->containedWindow())
+    if (container()->containedWindow() && QAccessible::queryAccessibleInterface(container()->containedWindow()))
         return 1;
     return 0;
 }
diff --git a/src/widgets/dialogs/qwizard.cpp b/src/widgets/dialogs/qwizard.cpp
index 22499b3c22..890069ca1a 100644
--- a/src/widgets/dialogs/qwizard.cpp
+++ b/src/widgets/dialogs/qwizard.cpp
@@ -1468,8 +1468,8 @@ void QWizardPrivate::updateButtonTexts()
     // even in RTL mode, so do the same, even if it might be counter-intuitive.
     // The shortcut for 'back' is set in class QVistaBackButton.
 #if QT_CONFIG(shortcut)
-    if (btns[QWizard::NextButton])
-        btns[QWizard::NextButton]->setShortcut(isVistaThemeEnabled() ? QKeySequence(Qt::ALT | Qt::Key_Right) : QKeySequence());
+    if (btns[QWizard::NextButton] && isVistaThemeEnabled())
+        btns[QWizard::NextButton]->setShortcut(QKeySequence(Qt::ALT | Qt::Key_Right));
 #endif
 }
 
diff --git a/src/widgets/kernel/qaction.cpp b/src/widgets/kernel/qaction.cpp
index 2813340ea2..853e27cd6e 100644
--- a/src/widgets/kernel/qaction.cpp
+++ b/src/widgets/kernel/qaction.cpp
@@ -1120,6 +1120,8 @@ void
 QAction::setData(const QVariant &data)
 {
     Q_D(QAction);
+    if (d->userData == data)
+        return;
     d->userData = data;
     d->sendDataChanged();
 }
diff --git a/src/widgets/kernel/qlayout.cpp b/src/widgets/kernel/qlayout.cpp
index 1e455b0d64..f3db4f4e2d 100644
--- a/src/widgets/kernel/qlayout.cpp
+++ b/src/widgets/kernel/qlayout.cpp
@@ -1350,7 +1350,8 @@ QRect QLayout::alignmentRect(const QRect &r) const
 /*!
     Removes the widget \a widget from the layout. After this call, it
     is the caller's responsibility to give the widget a reasonable
-    geometry or to put the widget back into a layout.
+    geometry or to put the widget back into a layout or to explicitly
+    hide it if necessary.
 
     \b{Note:} The ownership of \a widget remains the same as
     when it was added.