Mark LMP_NO_SSL_CHECK and LMP_DEBUG_CURL as advanced options

    list(APPEND LAMMPS_LINK_LIBS ${CURL_LIBRARIES})

    add_definitions(-DLMP_KIM_CURL)

    set(LMP_DEBUG_CURL OFF CACHE STRING "Set libcurl verbose mode on/off. If on, it displays a lot of verbose information about its operations.")

    mark_as_advanced(LMP_DEBUG_CURL)

    if(LMP_DEBUG_CURL)

      add_definitions(-DLMP_DEBUG_CURL)

    endif()

    set(LMP_NO_SSL_CHECK OFF CACHE STRING "Tell libcurl to not verify the peer. If on, the connection succeeds regardless of the names in the certificate. Insecure - Use with caution!")

    mark_as_advanced(LMP_NO_SSL_CHECK)

    if(LMP_NO_SSL_CHECK)

      add_definitions(-DLMP_NO_SSL_CHECK)

    endif()