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| ID | Project | Category | View Status | Date Submitted | Last Update | ||||
| 0014159 | CMake | CMake | public | 2013-05-21 11:30 | 2014-06-02 08:37 | ||||
| Reporter | Janne Rönkkö | ||||||||
| Assigned To | Stephen Kelly | ||||||||
| Priority | normal | Severity | minor | Reproducibility | always | ||||
| Status | closed | Resolution | fixed | ||||||
| Platform | Linux | OS | Archlinux | OS Version | |||||
| Product Version | CMake 2.8.10.2 | ||||||||
| Target Version | Fixed in Version | CMake 2.8.11 | |||||||
| Summary | 0014159: qt4_wrap_cpp Creates Incorrect Dependencies When Ninja Generator Is Used | ||||||||
| Description | When using Ninja as generator qt4_wrap_cpp function generates incorrect dependencies causing all the wrapped source files to be rebuilt when any of the source is changed. Due to extra dependencies the build with Ninja is much slower than it should be. | ||||||||
| Steps To Reproduce | Extract the example.tar to get example project and in the build directory run cmake .. -G Ninja ninja -v touch ../A.hpp ninja -v Also B.cpp and B_moc.cxx are build even though those files do not depend on A.hpp. | ||||||||
| Additional Information | With GNUMake B.cpp and B_moc.cxx is not recompiled after modifying (touching) A.hpp: .../cmake-qt-moc-bug/build $ cmake .. -G 'Unix Makefiles' -- The C compiler identification is GNU 4.8.0 -- The CXX compiler identification is GNU 4.8.0 # ... snip ... -- Found Qt4: /usr/bin/qmake-qt4 (found version "4.8.4") -- Configuring done -- Generating done -- Build files have been written to: /home/janne/tmp/cmake-qt-moc-bug/build .../cmake-qt-moc-bug/build $ make [ 16%] Generating moc_B.cxx [ 33%] Generating moc_A.cxx Scanning dependencies of target mylib [ 50%] Building CXX object CMakeFiles/mylib.dir/A.cpp.o [ 66%] Building CXX object CMakeFiles/mylib.dir/B.cpp.o [ 83%] Building CXX object CMakeFiles/mylib.dir/moc_A.cxx.o [100%] Building CXX object CMakeFiles/mylib.dir/moc_B.cxx.o Linking CXX static library libmylib.a [100%] Built target mylib .../cmake-qt-moc-bug/build $ touch ../A.hpp .../cmake-qt-moc-bug/build $ make [ 16%] Generating moc_A.cxx Scanning dependencies of target mylib [ 33%] Building CXX object CMakeFiles/mylib.dir/A.cpp.o [ 50%] Building CXX object CMakeFiles/mylib.dir/moc_A.cxx.o Linking CXX static library libmylib.a [100%] Built target mylib But with Ninja also B.cpp and B_moc.cpp are rebuilt: janne@kafir ~/tmp/cmake-qt-moc-bug/build $ cmake .. -G Ninja -- The C compiler identification is GNU 4.8.0 -- Check for working C compiler using: Ninja -- Check for working C compiler using: Ninja -- works # ... snip ... -- Found Qt4: /usr/bin/qmake-qt4 (found version "4.8.4") -- Configuring done -- Generating done -- Build files have been written to: /home/janne/tmp/cmake-qt-moc-bug/build .../cmake-qt-moc-bug/build $ ninja -v [1/7] cd /home/janne/tmp/cmake-qt-moc-bug/build && /usr/lib/qt4/bin/moc -I/usr/include/qt4 -I/usr/include/qt4/QtGui -I/usr/include/qt4/QtCore -DQT_NO_DEBUG -DQT_GUI_LIB -DQT_CORE_LIB -o /home/janne/tmp/cmake-qt-moc-bug/build/moc_B.cxx /home/janne/tmp/cmake-qt-moc-bug/B.hpp [2/7] cd /home/janne/tmp/cmake-qt-moc-bug/build && /usr/lib/qt4/bin/moc -I/usr/include/qt4 -I/usr/include/qt4/QtGui -I/usr/include/qt4/QtCore -DQT_NO_DEBUG -DQT_GUI_LIB -DQT_CORE_LIB -o /home/janne/tmp/cmake-qt-moc-bug/build/moc_A.cxx /home/janne/tmp/cmake-qt-moc-bug/A.hpp [3/7] /usr/lib/colorgcc/bin/c++ -DQT_CORE_LIB -DQT_GUI_LIB -DQT_NO_DEBUG -I/usr/include/qt4 -I/usr/include/qt4/QtGui -I/usr/include/qt4/QtCore -MMD -MT CMakeFiles/mylib.dir/A.cpp.o -MF "CMakeFiles/mylib.dir/A.cpp.o.d" -o CMakeFiles/mylib.dir/A.cpp.o -c ../A.cpp [4/7] /usr/lib/colorgcc/bin/c++ -DQT_CORE_LIB -DQT_GUI_LIB -DQT_NO_DEBUG -I/usr/include/qt4 -I/usr/include/qt4/QtGui -I/usr/include/qt4/QtCore -MMD -MT CMakeFiles/mylib.dir/B.cpp.o -MF "CMakeFiles/mylib.dir/B.cpp.o.d" -o CMakeFiles/mylib.dir/B.cpp.o -c ../B.cpp [5/7] /usr/lib/colorgcc/bin/c++ -DQT_CORE_LIB -DQT_GUI_LIB -DQT_NO_DEBUG -I/usr/include/qt4 -I/usr/include/qt4/QtGui -I/usr/include/qt4/QtCore -MMD -MT CMakeFiles/mylib.dir/moc_A.cxx.o -MF "CMakeFiles/mylib.dir/moc_A.cxx.o.d" -o CMakeFiles/mylib.dir/moc_A.cxx.o -c moc_A.cxx [6/7] /usr/lib/colorgcc/bin/c++ -DQT_CORE_LIB -DQT_GUI_LIB -DQT_NO_DEBUG -I/usr/include/qt4 -I/usr/include/qt4/QtGui -I/usr/include/qt4/QtCore -MMD -MT CMakeFiles/mylib.dir/moc_B.cxx.o -MF "CMakeFiles/mylib.dir/moc_B.cxx.o.d" -o CMakeFiles/mylib.dir/moc_B.cxx.o -c moc_B.cxx [7/7] : && /usr/bin/cmake -E remove libmylib.a && /usr/bin/ar cr libmylib.a CMakeFiles/mylib.dir/A.cpp.o CMakeFiles/mylib.dir/B.cpp.o CMakeFiles/mylib.dir/moc_A.cxx.o CMakeFiles/mylib.dir/moc_B.cxx.o && /usr/bin/ranlib libmylib.a && : .../cmake-qt-moc-bug/build $ touch ../A.hpp .../cmake-qt-moc-bug/build $ ninja -v [1/6] cd /home/janne/tmp/cmake-qt-moc-bug/build && /usr/lib/qt4/bin/moc -I/usr/include/qt4 -I/usr/include/qt4/QtGui -I/usr/include/qt4/QtCore -DQT_NO_DEBUG -DQT_GUI_LIB -DQT_CORE_LIB -o /home/janne/tmp/cmake-qt-moc-bug/build/moc_A.cxx /home/janne/tmp/cmake-qt-moc-bug/A.hpp [2/6] /usr/lib/colorgcc/bin/c++ -DQT_CORE_LIB -DQT_GUI_LIB -DQT_NO_DEBUG -I/usr/include/qt4 -I/usr/include/qt4/QtGui -I/usr/include/qt4/QtCore -MMD -MT CMakeFiles/mylib.dir/A.cpp.o -MF "CMakeFiles/mylib.dir/A.cpp.o.d" -o CMakeFiles/mylib.dir/A.cpp.o -c ../A.cpp [3/6] /usr/lib/colorgcc/bin/c++ -DQT_CORE_LIB -DQT_GUI_LIB -DQT_NO_DEBUG -I/usr/include/qt4 -I/usr/include/qt4/QtGui -I/usr/include/qt4/QtCore -MMD -MT CMakeFiles/mylib.dir/B.cpp.o -MF "CMakeFiles/mylib.dir/B.cpp.o.d" -o CMakeFiles/mylib.dir/B.cpp.o -c ../B.cpp [4/6] /usr/lib/colorgcc/bin/c++ -DQT_CORE_LIB -DQT_GUI_LIB -DQT_NO_DEBUG -I/usr/include/qt4 -I/usr/include/qt4/QtGui -I/usr/include/qt4/QtCore -MMD -MT CMakeFiles/mylib.dir/moc_A.cxx.o -MF "CMakeFiles/mylib.dir/moc_A.cxx.o.d" -o CMakeFiles/mylib.dir/moc_A.cxx.o -c moc_A.cxx [5/6] /usr/lib/colorgcc/bin/c++ -DQT_CORE_LIB -DQT_GUI_LIB -DQT_NO_DEBUG -I/usr/include/qt4 -I/usr/include/qt4/QtGui -I/usr/include/qt4/QtCore -MMD -MT CMakeFiles/mylib.dir/moc_B.cxx.o -MF "CMakeFiles/mylib.dir/moc_B.cxx.o.d" -o CMakeFiles/mylib.dir/moc_B.cxx.o -c moc_B.cxx [6/6] : && /usr/bin/cmake -E remove libmylib.a && /usr/bin/ar cr libmylib.a CMakeFiles/mylib.dir/A.cpp.o CMakeFiles/mylib.dir/B.cpp.o CMakeFiles/mylib.dir/moc_A.cxx.o CMakeFiles/mylib.dir/moc_B.cxx.o && /usr/bin/ranlib libmylib.a && : | ||||||||
| Tags | No tags attached. | ||||||||
| Attached Files |  example.tar [^] (10,240 bytes) 2013-05-21 11:30 | ||||||||
| Relationships | |
| Relationships |
| Notes | |
|
(0033118) Janne Rönkkö (reporter) 2013-05-23 01:44 |
Seems to be working in 2.8.11 |
|
(0035982) Robert Maynard (manager) 2014-06-02 08:37 |
Closing resolved issues that have not been updated in more than 4 months. |
| Notes |
| Issue History | |||
| Date Modified | Username | Field | Change |
| 2013-05-21 11:30 | Janne Rönkkö | New Issue | |
| 2013-05-21 11:30 | Janne Rönkkö | File Added: example.tar | |
| 2013-05-23 01:44 | Janne Rönkkö | Note Added: 0033118 | |
| 2013-11-02 09:25 | Stephen Kelly | Status | new => resolved |
| 2013-11-02 09:25 | Stephen Kelly | Fixed in Version | => CMake 2.8.11 |
| 2013-11-02 09:25 | Stephen Kelly | Resolution | open => fixed |
| 2013-11-02 09:25 | Stephen Kelly | Assigned To | => Stephen Kelly |
| 2014-06-02 08:37 | Robert Maynard | Note Added: 0035982 | |
| 2014-06-02 08:37 | Robert Maynard | Status | resolved => closed |
| Issue History |
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