option (ENABLE_MSGPACK "Enable msgpack library" ${ENABLE_LIBRARIES}) if(NOT ENABLE_MSGPACK) message(STATUS "Not using msgpack") return() endif() add_library(_msgpack INTERFACE) target_include_directories(_msgpack SYSTEM BEFORE INTERFACE "${ClickHouse_SOURCE_DIR}/contrib/msgpack-c/include") add_library(ch_contrib::msgpack ALIAS _msgpack)