Windows: Add Qt Creator PATH update tip for missing SQL client dlls

This patch aims to provide an additional tip for users having trouble
with e.g. the MySQL plugin. After a successful build most users are
struggling with loading failure due the fact that the client libraries
folder is not contained in the PATH environment variable. This tip
helps them overcome that in a controlled manner with Qt Creator.

Change-Id: I2dc5c9c6d8d8976686d74c369b6e1683c479f35c
Reviewed-by: Jerome Pasion <jerome.pasion@digia.com>
QPixmap::fromImage() should detach when changing QImage format

When QPixmap::fromImage() detects an ARGB32 image with only opaque
pixels it will do a conversion where it only changes the advertised
format of the image. This conversion was lacking a check to see if it
the QImage was shared before doing so, which this patch adds.

Task-number: QTBUG-40282
Change-Id: I3acf221b76735637cef04c2104a33f87e5f09d54
Reviewed-by: Andreas Löw <andreas@code-and-web.de>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
Windows: Fix assignment of margins in QPageSetupDialog.

Task-number: QTBUG-40061
Change-Id: Id5c952a7d6280f2ab7180bff01911d6cffe57034
Reviewed-by: Kai Koehne <kai.koehne@digia.com>
Doc: corrected autolink errors in qnamespace.qdoc

Task-number: QTBUG-40362
Change-Id: Ic2a0740a12c98a60cb1d178c4d42c4ae1c39869c
Reviewed-by: Jerome Pasion <jerome.pasion@digia.com>
Use the stateless UTF-8 encoder in QStringRef::toUtf8

QString::toUtf8 already does it. I guess I forgot to update this part in
d51130cc3a00df8147e2eb0799e06865c901c6e0.

Change-Id: I83feafcb0383758f7e64d5142f57a7ae6a2ff351
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
qmake: Document the "aux" template type.

Better late than never.

Change-Id: If3bbeb4dfe3a8d49ceb02d9c2d0f2eff71595105
Reviewed-by: Leena Miettinen <riitta-leena.miettinen@digia.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
QNAM: Fix CPU load for limited upload QIODevice

This fixes high CPU load for upload devices that don't generate
a constant stream of data. Their readData() function was called all the
time without returning actual data.

This was noticed when implementing an upload device that emits data in
a limited way for bandwidth limiting.

[ChangeLog][QtNetwork][QNetworkAccessManager] Fixed high CPU load when handling
POST/upload QIODevice that generates data on readyRead().

Change-Id: Iefbcb1a21d8aedef1eb11761232dd16a049018dc
Reviewed-by: Richard J. Moore <rich@kde.org>
tst_QHash: verify that {}-style initialization drops duplicates

No actual reason for this test, except my curiority. Then again, it's
good to have this check, too.

Also checks that the last entry in the init_list "wins", which is
not how std:: containers work.

Change-Id: Ia284d093cd0029432372630e81657fb687b9516f
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
tst_QHash: replace QVERIFY(x == y) with QCOMPARE(x,y)

QCOMPARE produces more useful output on failure.

Change-Id: I584a5d33026ac2587758d72524f735937029e111
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
tst_QMap: verify that {}-style initialization drops duplicates

No actual reason for this test, except my curiority. Then again, it's
good to have this check, too.

Also checks that the last entry in the init_list "wins", which is
not how std:: containers work.

Change-Id: I4f7d1228f2b90a904b6c3f99e54afcd9970b723e
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
tst_QMap: replace QVERIFY(x == y) with QCOMPARE(x,y)

QCOMPARE produces more useful output on failure.

Change-Id: Idaa9bf61a22a43b0feb084a71985a69c8787d633
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
tst_QSet: verify that {}-style initialization drops duplicates

No actual reason for this test, except my curiority. Then again, it's
good to have this check, too.

Change-Id: I815fce7e4dbe76e21cac29beb1dbfc1083191d24
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Fix buffer overrun error with some proxy servers

In some cases, depending on the proxy server response, the current
implementation of QHttpSocketEngine may write to memory beyond the
allocated buffer size. That will trigger undefined behavior on UNIX
systems and a buffer overrun exception if compiled with visual studio.

Change-Id: I5769d10c56b6a7483d6d94672aa4321287b82651
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Improve dbus cross compilation

Building QtDBus on Linux host for QNX target had two issues:
* Configure check failed, because dbus-1 library was not linked in,
  if target platform doesn't support pkg-config.
* Host tools were not built, because pkg-config was not used to locate
  dbus headers on the host.

Task-number: QTBUG-37324
Change-Id: I71d8309599fd40ef2dd8c9e3b44b93a7482019f1
Reviewed-by: Rolf Eike Beer <eb@emlix.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
Fix compilation if EC is disabled in OpenSSL

Some Linux distributions disable EC by default which causes compile
errors on those platforms.

Task-number: QTBUG-40394
Change-Id: If5816d473bd1d64b1d4977860db662704a83310f
Reviewed-by: Richard J. Moore <rich@kde.org>
Merge remote-tracking branch 'origin/5.3' into dev

Conflicts:
	src/network/ssl/qsslsocket_openssl_symbols.cpp

Change-Id: Ic62419fa1fee5f4de6c372459d72e6e16f9a810b
Add QSysInfo::currentCpuArchitecture()

buildCpuArchitecture() returns the CPU Qt was built for, while this
function returns the CPU that Qt is running on -- if the OS was kind
enough to tell us.

Change-Id: Ib27937e3ff028cb500d263c4921ef00d3a567715
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Rework of QSysInfo OS and kernel version functions

This patch splits the OS product from the kernel name and versions.
Previously, it was a little confusing.

Thus, osType is split in two: kernelType() always returns the kernel
type, which includes "linux" for Android, "darwin" for iOS and OS X,
"qnx" for BlackBerry, and "windows" for all the Windows OSes. The Linux
distribution name and the visible product names are found in
productType(), with the respective versions in productVersion().

For an update system, applications probably want to send all four
tokens:
 - for Android, BlackBerry, iOS, OS X and Windows, the relevant
   information is productType and productVersion
 - for Linux distributions, in addition to productType and
   productVersion, the kernelType ("linux") is useful as a fallback and
   it's important for Debian/kFreeBSD and Debian/GNU
 - for other Unix systems, the relevant information is kernelType and
   kernelVersion

Change-Id: I66c36d5a4ddfad47babfc6744d752273705e7076
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
Fix QByteArray::to{Upper,Lower} when the array contains embedded nulls

[ChangeLog][QtCore][QByteArray] Fixed a bug that would cause QByteArray
to stop converting toUpper or toLower at the first embedded null
character.

Change-Id: Ia369037206617813d86a8f1489589243c82aa51b
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>
Don't parse /etc/os-release every time we need to do uname(2)

This is just an optimization of the code: instead of opening and parsing
/etc/os-release every time QSysInfo::kernelType() is called on Linux, do
that only in QSysInfo::productType() and productVersion().

Change-Id: I201504934ecf7a51854cb49c790bd9d30eba644b
Reviewed-by: Kai Koehne <kai.koehne@digia.com>
Reviewed-by: Jake Petroules <jake.petroules@petroules.com>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>