st/mesa: Add forward declaration in st_cb_strings.h.

diff --git a/src/mesa/state_tracker/st_cb_strings.h b/src/mesa/state_tracker/st_cb_strings.h
index 3b765aa..92d5d2d 100644 (file)
--- a/src/mesa/state_tracker/st_cb_strings.h
+++ b/src/mesa/state_tracker/st_cb_strings.h
@@ -30,6 +30,8 @@
 #define ST_CB_STRINGS_H
 
 
+struct dd_function_table;
+
 extern void
 st_init_string_functions(struct dd_function_table *functions);