[libvirt] [PATCH python] define __GNUC_PREREQ macro before using it

[Eric Blake]

On 12/29/2013 03:52 PM, Doug Goldstein wrote:
> We brought over use of the __GNUC_PREREQ macro from libvirt but didn't
> bring over the definition of it. This brings over the macro from libvirt
> sources.
> ---
>  libvirt-utils.h | 9 +++++++++
>  1 file changed, 9 insertions(+)

ACK (with #endif fixed).

> 
> diff --git a/libvirt-utils.h b/libvirt-utils.h
> index f55be7b..add7553 100644
> --- a/libvirt-utils.h
> +++ b/libvirt-utils.h
> @@ -65,6 +65,15 @@
>  # endif
>  
>  # ifdef __GNUC__
> +
> +#  ifndef __GNUC_PREREQ
> +#   if defined __GNUC__ && defined __GNUC_MINOR__
> +#    define __GNUC_PREREQ(maj, min)                                        \
> +    ((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min))
> +#   else
> +#    define __GNUC_PREREQ(maj,min) 0

Copy and paste and all, but you could add a space after that comma for
consistency.

> +#   endif
> +
>  /**
>   * ATTRIBUTE_UNUSED:
>   *
> 

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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