project

--apps

----inc

------headers.h

----src

------MainFile.cpp

----CMakeLists.txt

                        
                            cmake_minimum_required(VERSION 3.9.0)

                            project(app)

                            add_executable(app

                            src/MainFile.cpp)

                            target_include_directories(app PRIVATE inc/)

                        
                    

--build

cmake -B build ./apps

cmake --build ./build

./build/app

check your program file inside build folder