I've got a simple code which uses SFML library and it requires to be compiled with
-lsfml-graphics -lsfml-system -lsfml-window parameters.
It works just fine when I simply use cmd
g++ gejm.cpp -o gejm -lsfml-graphics -lsfml-system -lsfml-window
.\gejm.exe
However when I run it using CLion I get errors as if my parameters weren't passed. But I know my parameters ARE passed because if I misspell any of them an error is thrown before my code even gets compiled.
My CMakeLists.txt looks like this
set(GCC_COVERAGE_COMPILE_FLAGS "-lsfml-graphics -lsfml-system -lsfml-window")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${GCC_COVERAGE_COMPILE_FLAGS}" )
add_executable(gejm gejm.cpp)
So what is the problem?
...here's the errors
CMakeFiles\gejm.dir/objects.a(gejm.obj): In function `main':
D:/Projects/CPP/GUI/gejm.cpp:8: undefined reference to `_imp___ZN2sf6StringC1EPKcRKSt6locale'
D:/Projects/CPP/GUI/gejm.cpp:8: undefined reference to `_imp___ZN2sf9VideoModeC1Ejjj'
D:/Projects/CPP/GUI/gejm.cpp:8: undefined reference to `_imp___ZN2sf12RenderWindowC1ENS_9VideoModeERKNS_6StringEjRKNS_15ContextSettingsE'
D:/Projects/CPP/GUI/gejm.cpp:9: undefined reference to `_imp___ZNK2sf10WindowBase6isOpenEv'
D:/Projects/CPP/GUI/gejm.cpp:11: undefined reference to `_imp___ZN2sf10WindowBase9pollEventERNS_5EventE'
D:/Projects/CPP/GUI/gejm.cpp:13: undefined reference to `_imp___ZN2sf6Window5closeEv'
D:/Projects/CPP/GUI/gejm.cpp:17: undefined reference to `_imp___ZN2sf5ColorC1Ehhhh'
D:/Projects/CPP/GUI/gejm.cpp:17: undefined reference to `_imp___ZN2sf12RenderTarget5clearERKNS_5ColorE'
D:/Projects/CPP/GUI/gejm.cpp:18: undefined reference to `_imp___ZN2sf6Window7displayEv'
D:/Projects/CPP/GUI/gejm.cpp:8: undefined reference to `_imp___ZN2sf12RenderWindowD1Ev'
D:/Projects/CPP/GUI/gejm.cpp:8: undefined reference to `_imp___ZN2sf12RenderWindowD1Ev'
collect2.exe: error: ld returned 1 exit status
CMakeFiles\gejm.dir\build.make:84: recipe for target 'gejm.exe' failed
CMakeFiles\Makefile2:71: recipe for target 'CMakeFiles/gejm.dir/all' failed
mingw32-make.exe[3]: *** [gejm.exe] Error 1
mingw32-make.exe[2]: *** [CMakeFiles/gejm.dir/all] Error 2
CMakeFiles\Makefile2:83: recipe for target 'CMakeFiles/gejm.dir/rule' failed
mingw32-make.exe[1]: *** [CMakeFiles/gejm.dir/rule] Error 2
mingw32-make.exe: *** [gejm] Error 2
Makefile:117: recipe for target 'gejm' failed
This is not how to add libraries:
set(GCC_COVERAGE_COMPILE_FLAGS "-lsfml-graphics -lsfml-system -lsfml-window")
Add these libraries to the list of libraries:
target_link_libraries(gejm PUBLIC sfml-graphics sfml-system sfml-window)
Th reason it doesn't work is that the link stage is not the compilation stage and you only overrode the compilation flags, not the link flags. Anyway, it would not have been the proper way to go. Use what CMake provides, don't hack something in.