qmake_use.prf understands the _DEBUG and _RELEASE suffixes for
QMAKE_LIBS_XXX entries. The CMake configuration "Debug" is considered
for the _DEBUG entries, "Release" and "RelWithDebInfo" for _RELEASE.
The qt_lib_XXX_private.pri files are now generated in multiple steps:
1. The QT_LIBS_XXX information is generated per $<CONFIG> and written to
.cmake files.
2. A preliminary qt_lib_XXX_private.pri file is generated, containing
only configuration-independent data.
3. A custom command runs the QtGenerateLibPri.cmake script that combines
the files from step 1 and 2 into the final qt_lib_XXX_private.pri
file.
The same is done for mkspecs/qmodule.pri.
To be able to trigger custom commands from header modules, which are
interface libraries, we introduce one XXX_timestamp ALL target per
header module that creates a timestamp file. To that XXX_timestamp
target we add the pri file generation target as dependency.
Fixes: QTBUG-84348
Change-Id: I610f279e37feeb7eceb9ef20b3ddfecff8cfbf81
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
