if(NOT ARCH_ARM AND NOT OS_FREEBSD AND NOT OS_DARWIN)
    option(ENABLE_FASTOPS "Enable fast vectorized mathematical functions library by Mikhail Parakhin" ${ENABLE_LIBRARIES})
elseif(ENABLE_FASTOPS)
    message (${RECONFIGURE_MESSAGE_LEVEL} "Fastops library is not supported on ARM, FreeBSD and Darwin")
endif()

if(NOT ENABLE_FASTOPS)
    set(USE_FASTOPS 0)
    return()
endif()

if(NOT EXISTS "${ClickHouse_SOURCE_DIR}/contrib/fastops/fastops/fastops.h")
    message(WARNING "submodule contrib/fastops is missing. to fix try run: \n git submodule update --init --recursive")
    message (${RECONFIGURE_MESSAGE_LEVEL} "Can't find internal fastops library")
    set(MISSING_INTERNAL_FASTOPS_LIBRARY 1)
endif()

if(NOT MISSING_INTERNAL_FASTOPS_LIBRARY)
    set(USE_FASTOPS 1)
    set(FASTOPS_INCLUDE_DIR ${ClickHouse_SOURCE_DIR}/contrib/fastops/)
    set(FASTOPS_LIBRARY fastops)
endif()

message(STATUS "Using fastops=${USE_FASTOPS}: ${FASTOPS_INCLUDE_DIR} : ${FASTOPS_LIBRARY}")