include sdl2 adn sdl2_mixer in a better way

CMakeLists.txt

@@ -22,14 +22,16 @@ endif ()
 ################################################################################
 
 find_package(OpenGL)
+
+include(FindPkgConfig)
+PKG_SEARCH_MODULE(SDL2 REQUIRED sdl2)
+PKG_SEARCH_MODULE(SDL2MIXER REQUIRED SDL2_mixer)
 include_directories(
         ${CMAKE_CURRENT_SOURCE_DIR}/lib/recastnavigation/Recast/Include
         ${CMAKE_CURRENT_SOURCE_DIR}/lib/recastnavigation/DetourCrowd/Include
         ${CMAKE_CURRENT_SOURCE_DIR}/lib/recastnavigation/Detour/Include
         ${CMAKE_CURRENT_SOURCE_DIR}/lib/recastnavigation/DebugUtils/Include
         ${CMAKE_CURRENT_SOURCE_DIR}/lib/recastnavigation/DetourTileCache/Include
-        ${CMAKE_CURRENT_SOURCE_DIR}/lib/sdl2/include
-        ${CMAKE_CURRENT_SOURCE_DIR}/lib/sdl2_mixer/x86_64-w64-mingw32/include/SDL2
         ${CMAKE_CURRENT_SOURCE_DIR}/include
         ${CMAKE_CURRENT_SOURCE_DIR}/lib/nanovg/src
 )
@@ -38,6 +40,8 @@ FILE(GLOB_RECURSE clion_all_headers
         ${CMAKE_CURRENT_SOURCE_DIR}/include/*.h
         ${CMAKE_CURRENT_SOURCE_DIR}/include/*.hpp
         ${CMAKE_CURRENT_SOURCE_DIR}/*.inl
+	${SDL2_INCLUDE_DIRS}
+	${SDL2_mixer_INCLUDE_DIRS}
 )