[Xcb] [PATCH lib] c_client.py: Do not create pointers in unions

[Ran Benita]

On Fri, Dec 28, 2012 at 11:40:29PM +0100, Daniel Martin wrote:
> Do not create pointers in unions for fields of variadic length.
> 
> Signed-off-by: Daniel Martin <consume.noise at gmail.com>
> ---
> 
> With this patch xcb_xkb_doodad_t in xkb.h will change:
> 
>  typedef union xcb_xkb_doodad_t {
>      xcb_xkb_common_doodad_t    common; /**<  */
>      xcb_xkb_shape_doodad_t     shape; /**<  */
> -    xcb_xkb_text_doodad_t     *text; /**<  */
> +    xcb_xkb_text_doodad_t      text; /**<  */
>      xcb_xkb_indicator_doodad_t indicator; /**<  */
> -    xcb_xkb_logo_doodad_t     *logo; /**<  */
> +    xcb_xkb_logo_doodad_t      logo; /**<  */
>  } xcb_xkb_doodad_t;

This changes sizeof(xcb_xkb_doodad_t) from 20 to 24, which is incorrect.
It should be the same as sizeof(xkbDoodadWireDesc) from
X11/extensions/XKBproto.h, which is 20.

Ran