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 3b765aaa59271032f4f0d0371040b5ffecb859d6..92d5d2d9ba7a5fd51317e84fc89e82a2ddafd6c0 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);