AUTOUIC doesn't handle relative paths to .ui files in parent
directories when using Ninja Multi-Config.
The designer tool in qttools has such a ui file. This leads to the
following error when trying to build qttools together with examples as
ExternalProjects and Ninja Multi-Config:
ninja: error: 'src/designer/src/designer/designer_autogen/
include_Debug/ui_preferencesdialog.h', needed by
'src/designer/src/designer/designer_autogen:Debug',
missing and no known rule to make it
Until cmake is fixed, we can work around the issue by not adding
designer as a dependency when building EP examples, because no example
tries to use the app.
We can't exclude all apps from example dependencies because some
modules use qt_internal_add_app for tools as well, which are called
from public CMake API and also examples.
An example of this is qtapplicationmanager.
Given that we can't exclude all apps, introduce a function to
allow skipping single targets when building EP examples.
This will allow excluding designer specifically.
The examples will now depend on a new ${repo}_src_for_examples target
rather than ${repo}_src, which will exclude skipped targets.
Task-number: QTBUG-90820
Task-number: QTBUG-96232
Task-number: QTBUG-110369
Change-Id: I2f900253bbf7bac917f2293ef604ab3ea8f298e1
Reviewed-by: Joerg Bornemann <joerg.bornemann@qt.io>
4e70ab5eeb