The following issue has been SUBMITTED. ====================================================================== http://www.cmake.org/Bug/view.php?id=15647 ====================================================================== Reported By: Friedrich Assigned To: ====================================================================== Project: CMake Issue ID: 15647 Category: CMake Reproducibility: have not tried Severity: major Priority: normal Status: new ====================================================================== Date Submitted: 2015-07-11 15:59 EDT Last Modified: 2015-07-11 15:59 EDT ====================================================================== Summary: automoc is not run on some files with lots of targets in a CMakeLists.txt Description: CMake at least in the versions 3.1.3-3.2.3 for some not yet known reasons fails to run automoc on random targets if there are a lot of targets in a file. It's random as in, changing target names has an effect on with which files of which target automoc fails to be run (e.g. appending another letter to the name suddenly makes it work, just to fail on files of another target, and then the game restarts).
With 3.3.0-rc2 the problem was not seen. Steps to Reproduce: (Sorry, had no time to create a small example) The problem can be seen in the build of the KDE project "Calligra" in the "frameworks" branch. The CMakeLists.txt file where things are screwed up is "krita/image/tests/CMakeLists.txt", http://quickgit.kde.org/?p=calligra.git&a=blob&h=c0f2c77373fb1b624296d27e66c2deb3c86b6c07&hb=0629fef375cfc5520cab57a3920e88fe84526c94&f=krita%2Fimage%2Ftests%2FCMakeLists.txt It's enough to build the Krita part of Calligra to trigger this: # get Calligra sources, use frameworks branch # (sadly no way known to directly get a tarball with a snapshot) git clone git://anongit.kde.org/calligra.git cd calligra; git checkout frameworks; cd .. Use an texteditor of your choice and remove the cmake version check at the beging of "krita/image/tests/CMakeLists.txt". Then go on: # create build dir and run cmake, reduce to just building krita (+ internal deps) mkdir build; cd build cmake ../calligra -DBUILD_TESTING=ON -DPRODUCTSET=KRITA If at the end of the configure log you see -- ------ The following product(set)s/features will be built --------- -- KRITA: Full Krita we are good to finally test the problem. cd krita/image/tests/ make And now wait for the build to fail, it should be something like CMakeFiles/KisAsyncMergerTest.dir/kis_async_merger_test.cpp.o: In function `KisAsyncMergerTest::KisAsyncMergerTest()': /home/jenkins/builds/calligra/kf5- qt5/krita/image/tests/kis_async_merger_test.h:24: undefined reference to `vtable for KisAsyncMergerTest' CMakeFiles/KisAsyncMergerTest.dir/kis_async_merger_test.cpp.o: In function `KisAsyncMergerTest::~KisAsyncMergerTest()': /home/jenkins/builds/calligra/kf5- qt5/krita/image/tests/kis_async_merger_test.h:24: undefined reference to `vtable for KisAsyncMergerTest' collect2: error: ld returned 1 exit status krita/image/tests/CMakeFiles/KisAsyncMergerTest.dir/build.make:89: recipe for target 'krita/image/tests/KisAsyncMergerTest' failed Give kis_async_merger_test.{h,cpp} a good look, but it seems fine, Q_OBJECT exists and whatever is needed that should trigger automoc (and does for all the other files around and with other cmake versions). Now in "krita/image/tests/CMakeLists.txt" change the target name "KisAsyncMergerTest" to e.g. "KisAsyncMergerTestA" and rerun the build. Suddenly automoc is run on "kis_async_merger_test.h"... only to fail on the next. Additional Information: See https://mail.kde.org/pipermail/kde-buildsystem/2015-June/010819.html for related short discussion. ====================================================================== Issue History Date Modified Username Field Change ====================================================================== 2015-07-11 15:59 Friedrich New Issue ====================================================================== -- Powered by www.kitware.com Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Kitware offers various services to support the CMake community. For more information on each offering, please visit: CMake Support: http://cmake.org/cmake/help/support.html CMake Consulting: http://cmake.org/cmake/help/consulting.html CMake Training Courses: http://cmake.org/cmake/help/training.html Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Follow this link to subscribe/unsubscribe: http://public.kitware.com/mailman/listinfo/cmake-developers