> Hi all,
>
> As far as I can tell, all Qt programs built with CMake must include
> QT_USE_FILE after find_package(). So why doesn't FindQt4.cmake simply
> include QT_USE_FILE itself? Is there maybe a use case where
> QT_USE_FILE is *not* wanted?
Besides the points already given here is another example:
CMakeLists.txt:
find_package(Qt4 REQUIRED)
add_subdirectory(a)
add_subdirectory(b)
a/CMakeLists.txt
SET(QT_DONT_USE_QTGUI TRUE)
INCLUDE(${QT_USE_FILE})
...
TARGET_LINK_LIBRARIES(foo ${QT_LIBRARIES})
b/CMakeLists.txt
INCLUDE(${QT_USE_FILE})
...
TARGET_LINK_LIBRARIES(bar ${QT_LIBRARIES})
So bar would get linked against QtGui, but foo not. And this all without
fiddling with all the single Qt libraries and their dependencies.
Eike
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