set(LIB_INC_PATH 
    ""
    CACHE PATH
    "path to the port include directory"
)

set(LIB_SRC_PATH 
    ""
    CACHE PATH
    "path to the port srouce directory"
)

list(APPEND LIB_INC_PATH ${CMAKE_SOURCE_DIR}/src/lib/libmodbus/src)
aux_source_directory(${CMAKE_SOURCE_DIR}/src/lib/libmodbus/src LIB_SRC_PATH)

message(STATUS "LIB_INC_PATH: ${LIB_INC_PATH}")
message(STATUS "LIB_SRC_PATH: ${LIB_SRC_PATH}")