Fix auto test failure output on QNX

On QNX mbstowcs does not ignore last parameter (max) when first (dest)
is NULL. Set it to sufficiently large value to yield proper results on
QNX. Other platforms (standard libraries) will ignore this value anyway.

Change-Id: Ie4695254d45082e151a052bf16de684af3b1ba1e
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
egl cursor: The sampler is a uniform not an attribute

Change-Id: Ibae21653040f1d8dff2d2c0b7c1b2812d9e14551
Reviewed-by: Jørgen Lind <jorgen.lind@digia.com>
Fix compilation on libxcb 1.5

libxkbcommon-x11 uses xcb_discard_reply() function which was
introduced in libxcb 1.6, this brakes the compilation in
src/3rdparty/xkbcommon/src/x11/util.c when linking with libxcb 1.5 :

linking ../../../../plugins/platforms/libqxcb.so
.obj/util.o: In function `adopt_atoms':
util.c:(.text+0x347): undefined reference to `xcb_discard_reply'
collect2: error: ld returned 1 exit status

We can use an alternative approach to discard uncollected replies
and in addition add a fix for out-of-bounds error [1]

[1] https://github.com/xkbcommon/libxkbcommon/commit/e3f751be660e28e48d1477660e99e5456c864296

Task-number: QTBUG-38952
Change-Id: Ide90f9a2e75fc79d2bab0b81adb282c8cc81c345
Reviewed-by: Jørgen Lind <jorgen.lind@digia.com>
Direct2D QPA: Fix version check

It turns out that the version we were testing against was more recent than
basic Windows 7 SP1 + Platform Update. The direct2d version that
combination produces without any other updates is 6.2.9200.16492, and it
is sufficient for us.

Change-Id: Ib9840647371e2bb5c71bf74486348444ed4b4c19
Reviewed-by: Risto Avila <risto.avila@digia.com>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
Direct2D QPA: Stroke using direct2d primitives

Use native direct2d stroking instead of falling back to
QPaintEngineEx::stroke which in turn calls the pure virtual
QPaintEngineEx::fill which is reimplemented in QWindowsDirect2DPaintEngine.

In some cases like arc stroking this is significantly faster (up to 3x in
my measurements) and results in better visual quality.

Change-Id: I1c86ff772ba591432ff6550c7c59704ace4f0e0f
Reviewed-by: Risto Avila <risto.avila@digia.com>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
Direct2D QPA: Use correct buffer size constant

Change-Id: I2d8ec5faed959d6d642242b3e26ee0f185ee3d53
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
Fix crash in QNetworkAccessManager.

Recreating QCoreApplication could cause a crash in QNetworkAccessManager
constructor. That was caused by an invalid shutdown detection introduced
in f273d6fbc02055ff3999adc0df76360ca0670435.

Task-number: QTBUG-36897
Change-Id: Ib5bba773a2a4fcde690a3a93680aef551aae3a5b
Reviewed-by: Peter Hartmann <phartmann@blackberry.com>
Fix potential null pointer access

Change-Id: I7516ce88b38609ab9851419566141ba93a59aed3
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
CMake: Don't FATAL_ERROR if GL libraries can not be found.

For Windows builds, the necessary libraries are not found
in the sdk if the wrong environment is used, which is quite
common.

Task-number: QTBUG-34940
Change-Id: I7d844649790cbfacab3154a717d318fd570c4149
Reviewed-by: Brad King <brad.king@kitware.com>
Reviewed-by: Stephen Kelly <stephen.kelly@kdab.com>
Windows QPA: Remove dependency on swprintf_s() pulled in via _com_error::ErrorMessage().

Task-number: QTBUG-35617
Change-Id: I0ad926ac564612ebd0eb38f16b3e69cbcd48e62f
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>
Avoid accessing the internals of the SSL_CIPHER struct.

Avoid accessing the internals of the SSL_CIPHER struct since this has
changed size etc. over time leading to binary incompatibilities.

Task-number: QTBUG-32423
Task-number: QTBUG-23363
Change-Id: I8cb399484e3a62be7d511f4b8b22c876825c87d4
Reviewed-by: Peter Hartmann <phartmann@blackberry.com>
Reviewed-by: Daniel Molkentin <daniel@molkentin.de>
Fix minor coding style issues in new code in QtCore

Change-Id: I444daf8e81257f55746f9d32fbcb60a2e1b69444
Reviewed-by: Liang Qi <liang.qi@digia.com>
Reviewed-by: Rafael Roquetto <rafael.roquetto@kdab.com>
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
Make the use of -ffunction-sections more generic in Qt

Move it from bootstrap.pro into qt_module.prf so it will apply to any
other bootstrapped libraries, like libQmlDevTools.

Variable called "SPLIT_SECTIONS" because -fdata-sections could be added
in the future, if it proves to be a benefit.

Change-Id: I3fbb004f111620a84e58e9112e9bce3afd95631e
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
Make qmake also use -ffunction-sections

This might lead to a smaller binary if we use --gc-sections too.

Change-Id: I7e17b956a85ecefc3e187054848393d2855152b6
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
Strip bootstrapped binaries of unused sections

This matches the -ffunction-sections from bootstrap.pro, which tells the
compiler to create a section for each function. The -gc-sections option
tells the linker to drop what wasn't used (normally, it only drops
entire files).

Before (on Linux, built with -O3, no LTO):
   text    data     bss     dec     hex filename
1746385    7920    3750 1758055  1ad367 bin/moc
1444101    6664    1894 1452659  162a73 bin/rcc
4407725    1568    4896 4414189  435aed bin/qmake

After:
   text    data     bss     dec     hex filename
1131655    6520    3494 1141669  116ba5 bin/moc
1027043    5480    1766 1034289   fc831 bin/rcc
3578489    1656    5313 3585458  36b5b2 bin/qmake

Gain: 35% on moc, 28% on rcc, 19% on qmake

Before (on OS X):
__TEXT	__DATA	__OBJC	others	dec	hex
1495040	12288	0	4294993008	4296500336	100176470	bin/moc
1265664	8192	0	4294983904	4296257760	10013b0e0	bin/rcc
5279744	81920	0	4297912320	4303273984	1007ec000	bin/qmake

After:
__TEXT	__DATA	__OBJC	others	dec	hex
806912	8192	0	4294988132	4295803236	1000cc164	bin/moc
720896	8192	0	4294979764	4295708852	1000b50b4	bin/rcc
4841472	77824	0	4295580688	4300499984	100546c10	bin/qmake

Gain: 46% on moc, 43% on rcc, 8% on qmake.

Change-Id: Icc7cdc9fd6f5db15537b4adabaac7e7a27e539d4
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
Skip some qsavefile auto tests

Some of the QSaveFile tests are not applicable with root privileges.

Change-Id: I1a22906c0b14acf144f1849719152dfe9d79f426
Reviewed-by: David Faure <david.faure@kdab.com>
Skip tst_QLockFile::noPermissions

QLockFile "noPermissions" test is not applicable with root
privileges.

Change-Id: I5779da524f24d0f1b9ef519d654856a6200da6bf
Reviewed-by: David Faure <david.faure@kdab.com>