Return true for QSqlQuery::isNull on non-existent fields.

This fixes the tst_QSqlQuery::isNull test case when run against a
MySQL database driver.

Change-Id: I8248ba956472bae97a64247594055e6f02840557
Reviewed-by: Mark Brand <mabrand@mabrand.nl>
[Docs] Don't propose using deprecated QFont:: rawName()/setRawName()

Change-Id: I333417b1340a56d782316c2c3628f63a504153ab
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
Report font tables are R/O blobs

There is no point in modifying font tables, so mark them RO for clarity.

Change-Id: I8ddbda9ace9c5a0eeabc0c5e5f64558060b5ee69
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
Minor improvement to Qt-HB bridging code

Replace C-style cast with static_cast for casts from void*.

Change-Id: I4d6c602037e70afe2746a179a31fea4c5043c3d5
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
Set the minimum required FreeType version to 2.1.10

...and get rid of workarounds for older versions,
which also makes the code more readable.

Change-Id: I087110c5f60cd664dad241776e1a0df901989c75
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
Fix crash when running QtWayland compositor on xcb-egl.

When running the compositor on xcb the compositor backend will call
nativeResourceForWindow with EglDisplay as resource. When this is done
the window->handle() will be null and result in a crash. By returning
just the eglDisplay() when the window->handle() is null solves the
problem and also makes the compositor work.

Change-Id: I72f4341402facc8c44a41151c4f76d6447bd8070
Reviewed-by: Jørgen Lind <jorgen.lind@theqtcompany.com>
small improvements to the hurd-g++ mkspec

- remove the X11R6 paths, since they were gone for years, and their
  lack may cause build issues with CMake config files
- add empty QMAKE_*_XCB variables, as done in the common linux.conf
- add to QMAKE_PLATFORM, not just reset it (just done in other mkspecs)
- borrow QMAKE_LFLAGS_GCSECTIONS from the common linux.conf

Change-Id: I94e05032f8195bbda73dffe1da02eec7ac679045
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>