[oe] [meta-qt5][PATCH v4] Upgrade to Qt 5.8

[Samuli Piippo]

Changes from v3 patch:
- sha1s updated to expected RC content
- fixed the qt3d assimp build-deps issue
- the new Qt configuration system taken into use where applicable

webengine build problem with x86_64 host and x86 target is still there.

-samuli

On 15.12.2016 15:48, Samuli Piippo wrote:
> The linux-oe-g++ mkspec is changed to use $$(...) operator to obtain
> the contents of an environment value when qmake is run instead of when
> Makefile is processed. All OE_QMAKE_xxx variables need to be exported
> for qmake to find them. configure's setBootstrapVariable function needs
> to change $$(..) to normal $(...) operator to work with qmake's Makefile.
>
> qt.conf generation for qtbase recipes is not needed, as configure will
> generate its own version based on configure arguments. Skip running
> qmake, since configure is now automatically invoked when it's run in
> qtbase's root folder.
>
> Update PACKAGECONFIGs for qtbase to match current configure options.
>
> The new Qt configuration system [1] can be used with a new variable
> EXTRA_QMAKEVARS_CONFIGURE, which takes both command line and feature
> arguments.
>
> Merge the two qtwayland recipes to one that supports all three targets
> (target, native, nativesdk) without need for additional patch.
>
> [1] https://www.mail-archive.com/development@qt-project.org/msg25257.html
>