blinky-esp/main/CMakeLists.txt

idf_component_register(
        SRCS
            "main.cpp"
            "wifi.cpp"
            "http_serv.cpp"
            "ota.cpp"
            "mqtt.cpp"

        INCLUDE_DIRS "."
    )

# Build static library, do not build test executables
option(BUILD_SHARED_LIBS OFF)
option(BUILD_TESTING OFF)

# Unfortunately the library performs install and export. Would
# have been nice if devs made that an option like BUILD_SHARED_LIBS
# and BUILD_TESTING. Override install() and export() to do nothing
# instead.
function(install)
endfunction()

function(export)
endfunction()

# Import tinyxml2 targets
#add_subdirectory(lib/tinyxml2)
# Link tinyxml2 to main component
#target_link_libraries(${COMPONENT_LIB} PUBLIC tinyxml2)