Building a user project in Release configuration against a Qt built with
CMAKE_CONFIGURATION_TYPES=RelWithDebInfo;Debug led to the user project
being linked against the Debug Qt libraries. This is especially painful
with MSVC where debug and release runtimes are incompatible.
We now create *AdditionalTargetInfo.cmake files along the
exported *Targets.cmake files that set the IMPORT_*_<CONFIG> properties
to the values of the release config Qt was built with.
User projects built with an unknown
configuration (CMAKE_BUILD_TYPE=ArbitraryName) will link against a
release Qt. This can be controlled by setting the variable
QT_DEFAULT_IMPORT_CONFIGURATION to, for example, DEBUG in the user
project.
Fixes: QTBUG-86743
Change-Id: I12c4b065a9845c7317f6acddab46b649f2732c9e
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
Add qt_add_3rdparty_library() function as a replacement for qmake's
qt_helper_lib feature.
All 3rdparty libraries will be available under the Qt:: alias when built
through this method so that they can properly register as dependencies
of a Qt module.
This patch also adds Qt3rdPartyLibraryConfig.cmake.in to export the
CMake configuration for static builds and shared libraries.
Change-Id: I52bf3a95ca22fccd9ab54343468847bb1b570c28
Fixes: QTBUG-81969
Reviewed-by: Liang Qi <liang.qi@qt.io>
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
