Delet Unnecessary code from CMakeFiles

CMakeLists.txt

-cmake_minimum_required(VERSION 2.8)
+cmake_minimum_required(VERSION 3.0)
 project (dapmodvpn)
   
-set(VPN_SRCS dap_stream_ch_vpn.c )
-add_library(${PROJECT_NAME} STATIC ${VPN_SRCS})
+set(VPN_SRCS dap_stream_ch_vpn.c)
 
-include_directories("${INCLUDE_DIRECTORIES} ${dap_core_server_INCLUDE_DIRS}/client")
-include_directories("${INCLUDE_DIRECTORIES} ${dap_http_server_INCLUDE_DIRS}/http_client")
-include_directories("${INCLUDE_DIRECTORIES} ${dap_core_INCLUDE_DIRS}")
-include_directories("${INCLUDE_DIRECTORIES} ${dap_core_server_INCLUDE_DIRS}")
-include_directories("${INCLUDE_DIRECTORIES} ${dap_crypto_INCLUDE_DIRS}")
-include_directories("${INCLUDE_DIRECTORIES} ${dap_client_INCLUDE_DIRS}")
-include_directories("${INCLUDE_DIRECTORIES} ${dap_auth_INCLUDE_DIRS}")
-include_directories("${INCLUDE_DIRECTORIES} ${dap_db_INCLUDE_DIRS}")
-include_directories("${INCLUDE_DIRECTORIES} ${dap_http_INCLUDE_DIRS}")
-include_directories("${INCLUDE_DIRECTORIES} ${dap_http_server_INCLUDE_DIRS}")
-include_directories("${INCLUDE_DIRECTORIES} ${dap_session_INCLUDE_DIRS}")
-include_directories("${INCLUDE_DIRECTORIES} ${dap_stream_INCLUDE_DIRS}")
-include_directories("${INCLUDE_DIRECTORIES} ${dap_udp_server_INCLUDE_DIRS}")
-include_directories("${INCLUDE_DIRECTORIES} ${dap_mod_ch_sf_INCLUDE_DIRS}")
+add_library(${PROJECT_NAME} STATIC ${VPN_SRCS})
 
-add_definitions ("${dap_core_DEFINITIONS}")
-add_definitions ("${dap_core_server_DEFINITIONS}")
-add_definitions ("${dap_crypt_DEFINITIONS}")
-add_definitions ("${dap_client_DEFINITIONS}")
-add_definitions ("${dap_db_DEFINITIONS}")
-add_definitions ("${dap_http_server_DEFINITIONS}")
-add_definitions ("${dap_auth_DEFINITIONS}")
-add_definitions ("${dap_http_DEFINITIONS}")
-add_definitions ("${dap_stream_DEFINITIONS}")
-add_definitions ("${dap_session_DEFINITIONS}")
-add_definitions ("${dap_udp_server_DEFINITIONS}")
-add_definitions ("${dap_mod_ch_sf_DEFINITIONS}")
+target_link_libraries(dapmodvpn dap_core
+    dap_crypto dap_core_server dap_stream)
 
-target_link_libraries(dapmodvpn dap_core dap_crypto dap_core_server)
+target_include_directories(dapmodvpn INTERFACE .)