esp-idf/examples/protocols/https_request/main/CMakeLists.txt

# Embed the server root certificate into the final binary
#
# (If this was a component, we would set COMPONENT_EMBED_TXTFILES here.)
idf_component_register(SRCS "https_request_example_main.c"
                    INCLUDE_DIRS "."
                    EMBED_TXTFILES server_root_cert.pem)