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Re: [Qemu-devel] [PATCH 08/39] provide portable sizeof(long) test


From: malc
Subject: Re: [Qemu-devel] [PATCH 08/39] provide portable sizeof(long) test
Date: Tue, 12 Oct 2010 17:47:58 +0400 (MSD)
User-agent: Alpine 2.00 (LNX 1167 2008-08-23)

On Tue, 12 Oct 2010, Paolo Bonzini wrote:

> Do not hardcode the list of 64-bit CPUs.
> 
> Signed-off-by: Paolo Bonzini <address@hidden>
> ---
>  configure |   14 ++++++++------
>  1 files changed, 8 insertions(+), 6 deletions(-)
> 
> diff --git a/configure b/configure
> index cb76177..873e4a6 100755
> --- a/configure
> +++ b/configure
> @@ -1088,12 +1088,14 @@ esac
>  fi
>  
>  # host long bits test
> -hostlongbits="32"
> -case "$cpu" in
> -  x86_64|alpha|ia64|sparc64|ppc64|s390x)
> -    hostlongbits=64
> -  ;;
> -esac
> +cat > $TMPC << EOF
> +int sizeof_long_is_8[sizeof(long) == 8 ? 1 : -1];
> +EOF
> +if compile_object; then
> +hostlongbits=64
> +else
> +hostlongbits=32
> +fi

This is wrong.

-- 
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