I'm using a Qt and Cmake for a project and I'm a newbie with those two things, so please bear with me.
I have two class using Qt, one named MapMaker and another named ImageLabel. MapMaker inherited from QMainWindow and ImageLabel from QLabel
Imagelabel possess a Class as attribute that I named Map that possess a method addObstacle. MapMaker posses an imageLabel and ImageLabel possess a Map.
Every method of Map is in the Map.hpp file while MapMaker and ImageLabel method are in a .cpp file.
When I'm compiling, I have this error :
CMakeFiles/mapmakerv3.dir/includes/Qtfiles/MapMakerv3.cpp.o: In function `Map::drawObstacle(int, int, bool)': /home/malcolm/AASS/sketch_maker/includes/MapInterpretation/Map.hpp:431: multiple definition of `Map::addObstacle(int, int, bool)' CMakeFiles/mapmakerv3.dir/main.cpp.o:/home/malcolm/AASS/sketch_maker/includes/MapInterpretation/Map.hpp:431: first defined here CMakeFiles/mapmakerv3.dir/includes/Qtfiles/imageLabel.cpp.o: In function `Map::drawObstacle(int, int, bool)': /home/malcolm/AASS/sketch_maker/includes/MapInterpretation/Map.hpp:431: multiple definition of `Map::addObstacle(int, int, bool)' CMakeFiles/mapmakerv3.dir/main.cpp.o:/home/malcolm/AASS/sketch_maker/includes/MapInterpretation/Map.hpp:431: first defined here CMakeFiles/mapmakerv3.dir/mapmakerv3_automoc.cpp.o: In function `Map::drawObstacle(int, int, bool)': /home/malcolm/AASS/sketch_maker/includes/MapInterpretation/Map.hpp:431: multiple definition of `Map::addObstacle(int, int, bool)' CMakeFiles/mapmakerv3.dir/main.cpp.o:/home/malcolm/AASS/sketch_maker/includes/MapInterpretation/Map.hpp:431: first defined here collect2: error: ld returned 1 exit status CMakeFiles/mapmakerv3.dir/build.make:187: recipe for target 'mapmakerv3' failed make[2]: *** [mapmakerv3] Error 1 CMakeFiles/Makefile2:60: recipe for target 'CMakeFiles/mapmakerv3.dir/all' failed make[1]: *** [CMakeFiles/mapmakerv3.dir/all] Error 2 Makefile:76: recipe for target 'all' failed make: *** [all] Error 2 I've double check all of my ifndef define (header guards) at the beginning of every header files and they are not the same.
What's funny is that if I inline the method addObstacle then the error disappear.
Here is my Cmake :
cmake_minimum_required(VERSION 2.6) project(mapmakerv3) set (MapMaker_VERSION_MAJOR 1) set (MapMaker_VERSION_MINOR 0) find_package(Qt4 REQUIRED) find_package( OpenCV REQUIRED) find_package( Boost REQUIRED ) if ( NOT Boost_FOUND ) message(STATUS "This project requires the Boost library, and will not be compiled.") return() endif() include_directories("${PROJECT_BINARY_DIR}" ${QT_INCLUDES} ${CMAKE_CURRENT_BINARY_DIR} includes includes/Qtfiles includes/MapInterpretation/ includes/TopologicalMap/ includes/MapComparator/ Test/Ddata/) set(CMAKE_AUTOMOC TRUE) set(CMAKE_INCLUDE_CURRENT_DIR ON) add_executable(mapmakerv3 main.cpp includes/Qtfiles/MapMaker.cpp includes/Qtfiles/imageLabel.cpp) target_link_libraries(mapmakerv3 ${QT_QTCORE_LIBRARY} ${QT_QTGUI_LIBRARY} ${OpenCV_LIBS}) install(TARGETS mapmakerv3 RUNTIME DESTINATION bin) add_subdirectory(includes) I tried to compile a test file with no Qt-dependant files (no ImageLabel nor MapMaker) and only some custom class I made and the compiling goes fine. My guess is that the error is linked to the Qt part (some project configuration I have not done or I donät know about) but I have no idea how.
The only error I know that throws a multiple definition error is a mistake in the header guards. What else could be the reason for this here ?
I know it's a pretty messy question for now, just tell me what information I should provide to help.
