CMake error, SDL_mixer could not find libxmp - c++

Question

CMake Error:
CMake Error at /usr/share/cmake/Modules/FindPackageHandleStandardArgs.cmake:230 (message):
Could NOT find libxmp (missing: libxmp_LIBRARY libxmp_INCLUDE_PATH)
Call Stack (most recent call first):
/usr/share/cmake/Modules/FindPackageHandleStandardArgs.cmake:600 (_FPHSA_FAILURE_MESSAGE)
vendor/SDL_mixer/cmake/Findlibxmp.cmake:17 (find_package_handle_standard_args)
vendor/SDL_mixer/CMakeLists.txt:616 (find_package)
My CMakeLists.txt:
cmake_minimum_required(VERSION 3.0 FATAL_ERROR)
set(ProjectName SnakeGameSDL)
set(RootSources src/main.cpp src/Map.cpp src/Game.cpp)
set(RootHeaders src/Map.hpp src/Game.hpp)
add_executable(${ProjectName} ${RootSources} ${RootHeaders})
add_subdirectory(src/CSDLContext)
add_subdirectory(src/CAppSettings)
add_subdirectory(src/CollideSystem)
add_subdirectory(src/FontManager)
add_subdirectory(src/Food)
add_subdirectory(src/GameScenes)
add_subdirectory(src/GameScore)
add_subdirectory(src/Observer)
add_subdirectory(src/AchievementSystem)
add_subdirectory(src/Snake)
add_subdirectory(src/SoundManager)
add_subdirectory(src/SpriteAnimation)
add_subdirectory(src/TextureManager)
add_subdirectory(src/Timer)
#Vendor
add_subdirectory(vendor/SDL)
target_link_libraries(${ProjectName} SDL)
add_subdirectory(vendor/SDL_image)
target_link_libraries(${ProjectName} SDL_image)
add_subdirectory(vendor/SDL_ttf)
target_link_libraries(${ProjectName} SDL_ttf)
add_subdirectory(vendor/SDL_mixer)
target_link_libraries(${ProjectName} SDL_mixer)
I have to add in vendor libxmp library and specify path or something like this in SDL_mixer cmake file or its completly wrong?. My target is to build project or there some more easier ways to get what i want?

Answer 1

Not really a fix but for now no error,
i just added this line in my root CMakeLists.txt
set(SDL2MIXER_VENDORED ON CACHE BOOL "" FORCE) <-- this one
add_subdirectory(vendor/SDL_mixer)
target_link_libraries(${ProjectName} SDL_mixer)