case "$machine" in
csky*)
    abi=`$CC $CFLAGS $CPPFLAGS -E -dM -xc /dev/null |
      sed -n 's/^#define __CSKYABI__ \(.*\)/\1/p'`
    hard_float=`$CC $CFLAGS $CPPFLAGS -E -dM -xc /dev/null |
      sed -n 's/^#define __CSKY_HARD_FLOAT__ \(.*\)/\1/p'`
    hard_float_sf=`$CC $CFLAGS $CPPFLAGS -E -dM -xc /dev/null |
      sed -n 's/^#define __CSKY_HARD_FLOAT_FPU_SF__ \(.*\)/\1/p'`
    hard_float_abi=`$CC $CFLAGS $CPPFLAGS -E -dM -xc /dev/null |
      sed -n 's/^#define __CSKY_HARD_FLOAT_ABI__ \(.*\)/\1/p'`

    case "$abi" in
    1)
        echo "glibc does not support abiv1 yet" >&2
        exit 1
        ;;
    2)
        machine=abiv2
        ;;
    *)
        echo "Unknown abi" >&2
        exit 1
        ;;
    esac

    # __CSKY_HARD_FLOAT_ABI__ was added on gcc 11 to specify whether
    # -mfloat-abi=hard is set.  On older gcc, the float ABI is defined solely
    # with __CSKY_HARD_FLOAT__.  If __CSKY_HARD_FLOAT__ is set, it can be
    # either a hard-float ABI (gcc older than 11, or gcc11 -mfloat-abi=hard
    # (__CSKY_HARD_FLOAT_ABI__ is set) or -mfloat-abi=softfp
    # (__CSKY_HARD_FLOAT_ABI__ is not set). To be compatible with older gcc,
    # use __CSKY_HARD_FLOAT_FPU_SF__ identify if -mfloat-abi is supported,
    # because it is added to gcc at the same time as -mfloat-abi.
    if test -n "$hard_float"; then
	if test -z "$hard_float_sf"; then
	    with_fp_cond=1
	else
	    if test -n "$hard_float_abi"; then
		with_fp_cond=1
	    else
		with_fp_cond=0
	    fi
	fi
    else
	with_fp_cond=0
    fi

    base_machine=csky
    machine=csky/$machine

    $as_echo "#define CSKYABI $abi" >>confdefs.h
    $as_echo "#define CSKY_HARD_FLOAT $with_fp_cond" >>confdefs.h
    ;;
esac