Hi again,
i edit the target link as suggested (both ways to be sure) but i still have the undefined reference errors
cmake_minimum_required(VERSION 3.7)
project(SFMLprova1)
set(CMAKE_CXX_STANDARD 11)
set(SFML_ROOT "C:/Code/Librerie/SFML-2.4.2")
set(CMAKE_MODULE_PATH "C:/Code/Librerie/SFML-2.4.2/cmake/Modules" ${CMAKE_MODULE_PATH})
find_package(SFML COMPONENTS network audio graphics window system REQUIRED)
include_directories(${SFML_INCLUDE_DIR})
set(SOURCE_FILES main.cpp)
add_executable(SFMLprova1 ${SOURCE_FILES})
target_link_libraries(SFMLprova1 ${SFML_LIBRARIES} ${SFML_DEPENDENCIES})
"C:\Users\Ludovico\AppData\Roaming\JetBrains\CLion 2017.1.3\bin\cmake\bin\cmake.exe" --build C:\Users\Ludovico\CLionProjects\SFMLprova1\cmake-build-debug --target SFMLprova1 -- -j 4
[ 50%] Linking CXX executable SFMLprova1.exe
CMakeFiles\SFMLprova1.dir/objects.a(main.cpp.obj): In function `main':
C:/Users/Ludovico/CLionProjects/SFMLprova1/main.cpp:5: undefined reference to `_imp___ZN2sf6StringC1EPKcRKSt6locale'
C:/Users/Ludovico/CLionProjects/SFMLprova1/main.cpp:5: undefined reference to `_imp___ZN2sf9VideoModeC1Ejjj'
C:/Users/Ludovico/CLionProjects/SFMLprova1/main.cpp:5: undefined reference to `_imp___ZN2sf12RenderWindowC1ENS_9VideoModeERKNS_6StringEjRKNS_15ContextSettingsE'
C:/Users/Ludovico/CLionProjects/SFMLprova1/main.cpp:6: undefined reference to `_imp___ZN2sf11CircleShapeC1Efj'
C:/Users/Ludovico/CLionProjects/SFMLprova1/main.cpp:7: undefined reference to `_imp___ZN2sf5Color5GreenE'
C:/Users/Ludovico/CLionProjects/SFMLprova1/main.cpp:7: undefined reference to `_imp___ZN2sf5Shape12setFillColorERKNS_5ColorE'
C:/Users/Ludovico/CLionProjects/SFMLprova1/main.cpp:9: undefined reference to `_imp___ZNK2sf6Window6isOpenEv'
C:/Users/Ludovico/CLionProjects/SFMLprova1/main.cpp:11: undefined reference to `_imp___ZN2sf6Window9pollEventERNS_5EventE'
C:/Users/Ludovico/CLionProjects/SFMLprova1/main.cpp:13: undefined reference to `_imp___ZN2sf6Window5closeEv'
C:/Users/Ludovico/CLionProjects/SFMLprova1/main.cpp:16: undefined reference to `_imp___ZN2sf5ColorC1Ehhhh'
C:/Users/Ludovico/CLionProjects/SFMLprova1/main.cpp:16: undefined reference to `_imp___ZN2sf12RenderTarget5clearERKNS_5ColorE'
C:/Users/Ludovico/CLionProjects/SFMLprova1/main.cpp:17: undefined reference to `_imp___ZN2sf12RenderStates7DefaultE'
C:/Users/Ludovico/CLionProjects/SFMLprova1/main.cpp:17: undefined reference to `_imp___ZN2sf12RenderTarget4drawERKNS_8DrawableERKNS_12RenderStatesE'
C:/Users/Ludovico/CLionProjects/SFMLprova1/main.cpp:18: undefined reference to `_imp___ZN2sf6Window7displayEv'
C:/Users/Ludovico/CLionProjects/SFMLprova1/main.cpp:5: undefined reference to `_imp___ZN2sf12RenderWindowD1Ev'
C:/Users/Ludovico/CLionProjects/SFMLprova1/main.cpp:5: undefined reference to `_imp___ZN2sf12RenderWindowD1Ev'
CMakeFiles\SFMLprova1.dir/objects.a(main.cpp.obj): In function `ZN2sf11CircleShapeD1Ev':
C:/Code/Librerie/SFML-2.4.2/include/SFML/Graphics/CircleShape.hpp:41: undefined reference to `_imp___ZTVN2sf11CircleShapeE'
C:/Code/Librerie/SFML-2.4.2/include/SFML/Graphics/CircleShape.hpp:41: undefined reference to `_imp___ZTVN2sf11CircleShapeE'
C:/Code/Librerie/SFML-2.4.2/include/SFML/Graphics/CircleShape.hpp:41: undefined reference to `_imp___ZN2sf5ShapeD2Ev'
collect2.exe: error: ld returned 1 exit status
CMakeFiles\SFMLprova1.dir\build.make:101: recipe for target 'SFMLprova1.exe' failed
CMakeFiles\Makefile2:66: recipe for target 'CMakeFiles/SFMLprova1.dir/all' failed
CMakeFiles\Makefile2:78: recipe for target 'CMakeFiles/SFMLprova1.dir/rule' failed
mingw32-make.exe[3]: *** [SFMLprova1.exe] Error 1
mingw32-make.exe[2]: *** [CMakeFiles/SFMLprova1.dir/all] Error 2
mingw32-make.exe[1]: *** [CMakeFiles/SFMLprova1.dir/rule] Error 2
mingw32-make.exe: *** [SFMLprova1] Error 2
Makefile:117: recipe for target 'SFMLprova1' failed