add STATE_INTERNAL_DRIVER, etc (Rune Petersen)
diff --git a/src/mesa/shader/program.h b/src/mesa/shader/program.h
index a38a1a6..af06c03 100644
--- a/src/mesa/shader/program.h
+++ b/src/mesa/shader/program.h
@@ -189,7 +189,8 @@
STATE_INTERNAL, /* Mesa additions */
STATE_NORMAL_SCALE,
STATE_TEXRECT_SCALE,
- STATE_POSITION_NORMALIZED /* normalized light position */
+ STATE_POSITION_NORMALIZED, /* normalized light position */
+ STATE_INTERNAL_DRIVER /* first available state index for drivers (must be last) */
};