On Tuesday 06 December 2011 21:18:16 Zhenqiang Chen wrote:
> --- a/scripts/build/libc/newlib.sh      Wed Nov 30 12:07:59 2011 +0100
> +++ b/scripts/build/libc/newlib.sh      Wed Dec 07 10:13:17 2011 +0800
>
>      AR=${CT_TARGET}-ar                                  \
>      RANLIB=${CT_TARGET}-ranlib                          \
>      "${CT_SRC_DIR}/newlib-$(libc_newlib_version)/configure" \
> -        --host=${CT_BUILD}                              \
> +        --build=${CT_BUILD}                             \
> +        --host=${CT_HOST}                               \
>          --target=${CT_TARGET}                           \

i'd expect newlib to be like glibc and would use:
	--build=${CT_BUILD} --host=${CT_TARGET}

does newlib even use --target= ?  
-mike