[Intel-gfx] fix building intel ddx

[Stefano Avallone]

Hi,

a recent commit on xserver (EXA: Handle separate alpha maps properly in 
Composite fallback.) broke building the intel driver. As suggested in the 
commit, the problem should be fixed by the following patch:

--- src/i830.h.orig     2009-02-24 12:07:13.000000000 +0100
+++ src/i830.h  2009-02-24 12:01:43.000000000 +0100
@@ -77,6 +77,7 @@
 #include "i915_drm.h"

 #ifdef I830_USE_EXA
+#define EXA_DRIVER_KNOWN_MAJOR 3
 #include "exa.h"
 Bool I830EXAInit(ScreenPtr pScreen);
 unsigned long long I830TexOffsetStart(PixmapPtr pPix);

This fixes the building for me. As I am not a developer though, I am not sure 
this is the right way to fix it.

regards,
Stefano