option (ENABLE_VECTORCLASS "Faster math functions with vectorclass lib" OFF) if (ENABLE_VECTORCLASS) set (VECTORCLASS_INCLUDE_PATHS "${ClickHouse_SOURCE_DIR}/contrib/vectorclass" CACHE STRING "Path of vectorclass library") find_path (VECTORCLASS_INCLUDE_DIR NAMES vectorf128.h PATHS ${VECTORCLASS_INCLUDE_PATHS}) if (VECTORCLASS_INCLUDE_DIR) set (USE_VECTORCLASS 1) endif () message (STATUS "Using vectorclass=${USE_VECTORCLASS}: ${VECTORCLASS_INCLUDE_DIR}") endif ()