[CMake] FindQt4 stubbornly finding Qt3

[Clinton Stimpson]

find_package(Qt4)
include(${QT_USE_FILE})
qt4_wrap_cpp(MOC_FILES slidersgroup.h window.h)
add_executable(myexe main.cpp slidersgroup.cpp window.cpp ${MOC_FILES})


# temp set of path to find desired Qt
export PATH=/usr/local/Trolltech/Qt-4.3.5/bin:$PATH
# create build dir
mkdir build ; cd build
# run cmake
cmake ../
# make
make

So for command line cmake, you set PATH or add a -D flag to cmake with 
the qmake you want to use.
With cmake-gui, it becomes interactive, and you can just fix what you 
don't like.

BTW, only Qt 3 recognizes QTDIR, unless you want to use it yourself for 
convenience.

Clint

Zach Laine wrote:
> I'm having a problem with FindQt*.  I have numerous versions of Qt4 installed:
>
> usr/local/Trolltech/Qt-4.1.1
> /usr/local/Trolltech/Qt-4.1.5
> /usr/local/Trolltech/Qt-4.2.3
> /usr/local/Trolltech/Qt-4.3.5
> /usr/local/Trolltech/Qt-4.4.3
> /usr/local/Trolltech/Qt-4.5.0-rc1
>
> As well as the stock versions of Qt3 and Qt4 that came with my distro
> in /usr/lib.
>
> I've written a simple CMakeLists.txt for one of the Qt examples, based
> on recommendations about a seemingly related problem in this thread:
> http://www.cmake.org/pipermail/cmake/2009-March/027702.html
>
> Here is the file:
> =========================================================
> cmake_minimum_required(VERSION 2.4)
> set(CMAKE_VERBOSE_MAKEFILE "YES")
>
> set(DESIRED_QT_VERSION 4)
> set(QT_QT_LIBRARY "")
> set(QT_QMAKE_EXECUTABLE /usr/local/Trolltech/Qt-4.3.5/bin/qmake)
> find_package(Qt4)
> include(${QT_USE_FILE})
>
> message(${QT_LIBRARY_DIR}) # prints "/usr/lib"
> message(${QT_INCLUDE_DIR}) # prints "/usr/lib/qt3/include"
>
> qt_wrap_cpp(DUMMY_LIB_NAME MOC_FILES slidersgroup.h window.h)
> add_executable(myexe main.cpp slidersgroup.cpp window.cpp ${MOC_FILES})
> target_link_libraries(myexe ${QT_LIBRARIES})
> =========================================================
>
> The result of running "cmake CMakeLists.txt ; make" for CMake versions
> 2.6.4, 2.6.3, 2.6.2, 2.6.0, and 2.4.8 all produce the output in lines
> (1) and (2).  CMake 2.4.8 additionally reports "-- Found Qt-Version
> 4.3.5"(!).
>
> I've renamed the qmake that comes installed on my system, and changed
> PATH and QTDIR env variables in an effort to get CMake to find the
> right version of Qt.  Any idea how I can fix my CMakeLists.txt and/or
> system to fix this problem?
>
> Thanks in advance.
>
> Zach Laine
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ
>
> Follow this link to subscribe/unsubscribe:
> http://www.cmake.org/mailman/listinfo/cmake
>