Qt + CMake no moc files genereated
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Right, I managed to miss it...
Which version of CMake and Qt are you using ?
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Ok, can you share the code you have to reproduce your problem ?
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of corse! The cmake file is the same i posted in the previous post
test.h
#include <QObject> class Test : public QObject { Q_OBJECT public: Test(); virtual ~Test() {} };test.cpp
#include "test.h" Test::Test() {}main.cpp
#include <iostream> #include <QCoreApplication> #include <QDebug> #include "test.h" using namespace std; int main(int argc, char *argv[]) { QCoreApplication a(argc, argv); Test t; t.setObjectName("Test"); qDebug() << t.objectName(); return a.exec(); }instead if you prefer the "real project"(the errors are pretty the same)..
github repo
to compile it you need tinyXML2. There is the working .pro file and the non working cmake file. -
@ceora That's not the problem at hand it's the automoc not running properly.
@ceora try with:
cmake_minimum_required(VERSION 2.8.11) project(CMake_Test2) set(CMAKE_INCLUDE_CURRENT_DIR ON) set(CMAKE_AUTOMOC ON) find_package(Qt5Core) file(GLOB SOURCES *.cpp) add_executable(${PROJECT_NAME} ${SOURCES}) target_link_libraries(${PROJECT_NAME} Qt5::Core) -
Hi, I'm trying to build a simple QCoreApplication prorgam using CMake as a project files.
At time of building I get link error to Qt meta, the ones that shoul be generated with moc.I followed the documentation on cmake and qt on how to set up a project, but Automoc does'nt work
this is my cmake file:
project(CMake_Test2) cmake_minimum_required(VERSION 2.8) aux_source_directory(. SRC_LIST) find_package(Qt5 COMPONENTS core REQUIRED) set(CMAKE_AUTOMOC ON) set(CMAKE_INCLUDE_CURRENT_DIR ON) add_executable(${PROJECT_NAME} ${SRC_LIST}) target_link_libraries(${PROJECT_NAME} Qt5::Core)the source files are a simple helloworld main.cpp file and two files containing a simple QObject
definition and declaration(just to test the moc generation)Your example and code worked fine for me with one exception. This line had to be changed to a capital C on core:
find_package(Qt5 COMPONENTS Core REQUIRED)Here is the build output with
make VERBOSE=1:-- The C compiler identification is GNU 6.2.1 -- The CXX compiler identification is GNU 6.2.1 -- Check for working C compiler: /usr/bin/cc -- Check for working C compiler: /usr/bin/cc -- works -- Detecting C compiler ABI info -- Detecting C compiler ABI info - done -- Detecting C compile features -- Detecting C compile features - done -- Check for working CXX compiler: /usr/bin/c++ -- Check for working CXX compiler: /usr/bin/c++ -- works -- Detecting CXX compiler ABI info -- Detecting CXX compiler ABI info - done -- Detecting CXX compile features -- Detecting CXX compile features - done -- Configuring done -- Generating done -- Build files have been written to: /home/mike/tmp/x/build /usr/bin/cmake -H/home/mike/tmp/x -B/home/mike/tmp/x/build --check-build-system CMakeFiles/Makefile.cmake 0 /usr/bin/cmake -E cmake_progress_start /home/mike/tmp/x/build/CMakeFiles /home/mike/tmp/x/build/CMakeFiles/progress.marks make -f CMakeFiles/Makefile2 all make[1]: Entering directory '/home/mike/tmp/x/build' make -f CMakeFiles/CMake_Test2_automoc.dir/build.make CMakeFiles/CMake_Test2_automoc.dir/depend make[2]: Entering directory '/home/mike/tmp/x/build' cd /home/mike/tmp/x/build && /usr/bin/cmake -E cmake_depends "Unix Makefiles" /home/mike/tmp/x /home/mike/tmp/x /home/mike/tmp/x/build /home/mike/tmp/x/build /home/mike/tmp/x/build/CMakeFiles/CMake_Test2_automoc.dir/DependInfo.cmake --color= Dependee "/home/mike/tmp/x/build/CMakeFiles/CMake_Test2_automoc.dir/DependInfo.cmake" is newer than depender "/home/mike/tmp/x/build/CMakeFiles/CMake_Test2_automoc.dir/depend.internal". Dependee "/home/mike/tmp/x/build/CMakeFiles/CMakeDirectoryInformation.cmake" is newer than depender "/home/mike/tmp/x/build/CMakeFiles/CMake_Test2_automoc.dir/depend.internal". Scanning dependencies of target CMake_Test2_automoc make[2]: Leaving directory '/home/mike/tmp/x/build' make -f CMakeFiles/CMake_Test2_automoc.dir/build.make CMakeFiles/CMake_Test2_automoc.dir/build make[2]: Entering directory '/home/mike/tmp/x/build' [ 20%] Automatic moc for target CMake_Test2 /usr/bin/cmake -E cmake_autogen /home/mike/tmp/x/build/CMakeFiles/CMake_Test2_automoc.dir/ "" AUTOGEN: Checking /home/mike/tmp/x/main.cpp AUTOGEN: Checking /home/mike/tmp/x/test.cpp AUTOGEN: Checking /home/mike/tmp/x/test.h Generating moc source moc_test.cpp /usr/local/Qt/bin/moc -I/home/mike/tmp/x/build -I/home/mike/tmp/x -I/usr/local/Qt/include -I/usr/local/Qt/include/QtCore -I/usr/local/Qt/./mkspecs/linux-g++ -DQT_CORE_LIB -DQT_NO_DEBUG -o /home/mike/tmp/x/build/moc_test.cpp /home/mike/tmp/x/test.h Generating moc compilation CMake_Test2_automoc.cpp make[2]: Leaving directory '/home/mike/tmp/x/build' [ 20%] Built target CMake_Test2_automoc make -f CMakeFiles/CMake_Test2.dir/build.make CMakeFiles/CMake_Test2.dir/depend make[2]: Entering directory '/home/mike/tmp/x/build' cd /home/mike/tmp/x/build && /usr/bin/cmake -E cmake_depends "Unix Makefiles" /home/mike/tmp/x /home/mike/tmp/x /home/mike/tmp/x/build /home/mike/tmp/x/build /home/mike/tmp/x/build/CMakeFiles/CMake_Test2.dir/DependInfo.cmake --color= Dependee "/home/mike/tmp/x/build/CMakeFiles/CMake_Test2.dir/DependInfo.cmake" is newer than depender "/home/mike/tmp/x/build/CMakeFiles/CMake_Test2.dir/depend.internal". Dependee "/home/mike/tmp/x/build/CMakeFiles/CMakeDirectoryInformation.cmake" is newer than depender "/home/mike/tmp/x/build/CMakeFiles/CMake_Test2.dir/depend.internal". Scanning dependencies of target CMake_Test2 make[2]: Leaving directory '/home/mike/tmp/x/build' make -f CMakeFiles/CMake_Test2.dir/build.make CMakeFiles/CMake_Test2.dir/build make[2]: Entering directory '/home/mike/tmp/x/build' [ 40%] Building CXX object CMakeFiles/CMake_Test2.dir/main.cpp.o /usr/bin/c++ -DQT_CORE_LIB -DQT_NO_DEBUG -I/home/mike/tmp/x/build -I/home/mike/tmp/x -isystem /usr/local/Qt/include -isystem /usr/local/Qt/include/QtCore -isystem /usr/local/Qt/./mkspecs/linux-g++ -fPIC -std=gnu++11 -o CMakeFiles/CMake_Test2.dir/main.cpp.o -c /home/mike/tmp/x/main.cpp [ 60%] Building CXX object CMakeFiles/CMake_Test2.dir/test.cpp.o /usr/bin/c++ -DQT_CORE_LIB -DQT_NO_DEBUG -I/home/mike/tmp/x/build -I/home/mike/tmp/x -isystem /usr/local/Qt/include -isystem /usr/local/Qt/include/QtCore -isystem /usr/local/Qt/./mkspecs/linux-g++ -fPIC -std=gnu++11 -o CMakeFiles/CMake_Test2.dir/test.cpp.o -c /home/mike/tmp/x/test.cpp [ 80%] Building CXX object CMakeFiles/CMake_Test2.dir/CMake_Test2_automoc.cpp.o /usr/bin/c++ -DQT_CORE_LIB -DQT_NO_DEBUG -I/home/mike/tmp/x/build -I/home/mike/tmp/x -isystem /usr/local/Qt/include -isystem /usr/local/Qt/include/QtCore -isystem /usr/local/Qt/./mkspecs/linux-g++ -fPIC -std=gnu++11 -o CMakeFiles/CMake_Test2.dir/CMake_Test2_automoc.cpp.o -c /home/mike/tmp/x/build/CMake_Test2_automoc.cpp [100%] Linking CXX executable CMake_Test2 /usr/bin/cmake -E cmake_link_script CMakeFiles/CMake_Test2.dir/link.txt --verbose=1 /usr/bin/c++ CMakeFiles/CMake_Test2.dir/main.cpp.o CMakeFiles/CMake_Test2.dir/test.cpp.o CMakeFiles/CMake_Test2.dir/CMake_Test2_automoc.cpp.o -o CMake_Test2 -rdynamic /usr/local/Qt/lib/libQt5Core.so.5.7.0 -Wl,-rpath,/usr/local/Qt/lib make[2]: Leaving directory '/home/mike/tmp/x/build' [100%] Built target CMake_Test2 make[1]: Leaving directory '/home/mike/tmp/x/build' /usr/bin/cmake -E cmake_progress_start /home/mike/tmp/x/build/CMakeFiles 0Again this used your test.h/cpp and main.cpp, as well as your posted CMakeFiles.txt. I used cmake 3.6.2 and Qt 5.7 for the test if that matters (it shouldn't).
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@ambershark Nice catch ! I missed that one.
On a side note,
aux_source_directoryas used in the sample code goes against the CMake recommandation. -
@ambershark Nice catch ! I missed that one.
On a side note,
aux_source_directoryas used in the sample code goes against the CMake recommandation.@SGaist Oh I would have missed it too if I didn't try to run his example. Case stuff is hard to see without a compiler issue. :)
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I also ran it but I didn't saw anything about the component itself but I may have very well missed it.
