Add the unified PlatformGraphics module, which looks for either Integrity
or VxWorks platform graphics.
The PlatformGraphics module creates the interface
PlatformGraphics::PlatformGraphics target which links the respective
platform graphics target. It's expected that from the platform graphics
targets to deliver the consistent subset of definitions, libraries,
include directories, compiler and linker flags and also the special
<platform>_REQUIRED_<LIBRARIES|INCLUDES|DEFINITIONS> variables.
The <platform>_REQUIRED_<LIBRARIES|INCLUDES|DEFINITIONS> variables are
consumed by the PlatformGraphics::PlatformGraphics and stored in the
respective _qt_internal_platform_graphics_required_<type> property, to
access the value without scope limitations. The property then is
checked by the EGL and GLESv2 modules(this can be done elsewhere too)
and is appended to the CMAKE_REQUIRED_<type> variable before running
the respective compiler checks.
Task-number: QTBUG-128455
Change-Id: Id1987c6294327509a14fbeeb7b8bf39aad6f486c
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
Reviewed-by: Karim Pinter <karim.pinter@qt.io>
(cherry picked from commit 3322f585eb5ad11acc1f93ecaafb42e30e37b197)
26d9fca58e