lvgl: Errors (19 Items) undefined reference SDL...

Hello, I try to build pc_simulator project, but I get follow 19 errors, what do I wrong??:

Description Resource Path Location Type undefined reference to SDL_CreateRenderer' monitor.c /pc_simulator/lv_drivers/display line 211 C/C++ Problem undefined reference to SDL_CreateTexture’ monitor.c /pc_simulator/lv_drivers/display line 212 C/C++ Problem undefined reference to SDL_CreateThread' main.c /pc_simulator line 105 C/C++ Problem undefined reference to SDL_CreateThread’ monitor.c /pc_simulator/lv_drivers/display line 70 C/C++ Problem undefined reference to SDL_CreateWindow' monitor.c /pc_simulator/lv_drivers/display line 207 C/C++ Problem undefined reference to SDL_Delay’ main.c /pc_simulator line 117 C/C++ Problem undefined reference to SDL_Delay' monitor.c /pc_simulator/lv_drivers/display line 245 C/C++ Problem undefined reference to SDL_DestroyRenderer’ monitor.c /pc_simulator/lv_drivers/display line 249 C/C++ Problem undefined reference to SDL_DestroyTexture' monitor.c /pc_simulator/lv_drivers/display line 248 C/C++ Problem undefined reference to SDL_DestroyWindow’ monitor.c /pc_simulator/lv_drivers/display line 250 C/C++ Problem undefined reference to SDL_Init' monitor.c /pc_simulator/lv_drivers/display line 203 C/C++ Problem undefined reference to SDL_PollEvent’ monitor.c /pc_simulator/lv_drivers/display line 234 C/C++ Problem undefined reference to SDL_Quit' monitor.c /pc_simulator/lv_drivers/display line 251 C/C++ Problem undefined reference to SDL_RenderClear’ monitor.c /pc_simulator/lv_drivers/display line 228 C/C++ Problem undefined reference to SDL_RenderCopy' monitor.c /pc_simulator/lv_drivers/display line 229 C/C++ Problem undefined reference to SDL_RenderPresent’ monitor.c /pc_simulator/lv_drivers/display line 230 C/C++ Problem undefined reference to SDL_SetEventFilter' monitor.c /pc_simulator/lv_drivers/display line 205 C/C++ Problem undefined reference to SDL_UpdateTexture’ monitor.c /pc_simulator/lv_drivers/display line 217 C/C++ Problem undefined reference to `SDL_UpdateTexture’ monitor.c /pc_simulator/lv_drivers/display line 227 C/C++ Problem