怎样查看X的版本信息，我想编译dri的driver

zhuao

SLED 10怎样查看X的版本信息呀？
我下载了X11R6.9的xorg source code;可是在编译的时候有错误，感觉像是版本不匹配的样子：

In file included from ../common/dri_util.h:57,
                 from ../common/utils.h:33,
                 from ../common/utils.c:36:
/usr/local/include/xf86drm.h:569: error: expected declaration specifiers or ‘...’ before ‘drm_drawable_info_type_t’
In file included from /usr/local/include/xf86drm.h:661,
                 from ../common/dri_util.h:57,
                 from ../common/utils.h:33,
                 from ../common/utils.c:36:
/usr/local/include/xf86mm.h:106: error: expected specifier-qualifier-list before ‘drm_bo_type_t’
/usr/local/include/xf86mm.h:128: error: expected specifier-qualifier-list before ‘drm_bo_arg_t’
/usr/local/include/xf86mm.h:176: error: expected declaration specifiers or ‘...’ before ‘drm_bo_type_t’