QNX: Fix compilation of qdatetime.cpp

Adding std:: to pow() to make it compile for BlackBerry 10.

Change-Id: I9ab3cc626eb2ba872c09df33cdb820b50d075428
Reviewed-by: Wolfgang Bremer <wbremer@blackberry.com>
Reviewed-by: Fabian Bumberger <fbumberger@rim.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Fix detecting the system path

The normalize function don't do well it's job.
Given a path like that,  the regexp "/[^/]+/.."  will match 3 times
 /usr/lib/gcc/x86_64-unknown-linux-gnu/4.8.2/../../../../include/c++/4.8.2
                                      [       ][    ][         ]
The second match is wrong as it will remove /../..

Use sub instead of gsub which only remove one match at the time.

Change-Id: I0657bc603e521c9e53b9f50d2481dce184b64bad
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
Fix crash when constructing a QVector with an empty initializer list.

Data::allocate(0) returns a pointer to read-only memory, updating d->size
will segfault. The safety check for this exists in all other QVector ctors
already.

Change-Id: Ida0fe4182de56ee62c7f91e8652cfafbfd7b8410
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Fix typos in QUrl::toAce() documentation.

Change-Id: I6b101c57c537523fb48e57985e1d69c4327a67aa
Reviewed-by: Jerome Pasion <jerome.pasion@digia.com>
Fix QPixmap and OpenGL threading warnings when painting

If the QPA supports threaded pixmaps, don't print out a message warning
the user about painting a pixmap in the non-main thread.
Likewise, if the QPA supports threaded OpenGL, don't print out a warning
when the user is about to paint on OpenGL from a non-main thread.

Change-Id: I5b4928ee49b1d6c1b638b036fade12dc794258df
Reviewed-by: Albert Astals Cid <albert.astals@canonical.com>
Reviewed-by: Laszlo Agocs <laszlo.agocs@digia.com>