cmake_minimum_required(VERSION 3.10.0) set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -I/home/pi/CPP") project(sstp VERSION 0.1.0 LANGUAGES C CXX) add_executable(sstp main.cpp clientsocketsender.cpp socketconnectionreceiver.cpp socketserver.cpp sstp.cpp) add_subdirectory(/home/pi/CPP/common /home/pi/CPP/common/build) target_link_libraries(sstp PRIVATE common) # we are naming the output executable sstp set_target_properties(sstp PROPERTIES OUTPUT_NAME "sstp")