menu "Newlib"

choice NEWLIB_LIBRARY_LEVEL
    prompt "newlib level"
    default NEWLIB_LIBRARY_LEVEL_FLOAT_NANO
    help
        Choose newlib library level.

config NEWLIB_LIBRARY_LEVEL_NORMAL
    bool "normal"
    help
        If you need 64-bit integer formatting support or C99 features, select this
        option.

config NEWLIB_LIBRARY_LEVEL_NANO
    bool "nano"
    help
        The newlib library which has been compiled with so-called "nano"
        formatting option. This option doesn't support 64-bit integer formats, C99
        features and float formats, such as positional arguments.

        For more details about "nano" formatting option, please see newlib readme file,
        search for '--enable-newlib-nano-formatted-io':
        https://sourceware.org/newlib/README

        If you do not need 64-bit integer formatting support, C99 features and float,
        select this option.

config NEWLIB_LIBRARY_LEVEL_FLOAT_NANO
    bool "float nano"
    help
        The newlib library which has been compiled with so-called "float nano"
        formatting option. This option doesn't support 64-bit integer formats and C99
        features, but support float formats, such as positional arguments.

        For more details about "nano" formatting option, please see newlib readme file,
        search for '--enable-newlib-nano-formatted-io':
        https://sourceware.org/newlib/README

        If you do not need 64-bit integer formatting support and C99 features, but need float formats,
        select this option.

config NEWLIB_LIBRARY_CUSTOMER
    bool "customer"
    help
        If you need use you own C library, select this option. The libraries and
        header files at this component will not be used.

        Note: ABI of the C library of your own must be same as SDK.

endchoice

endmenu