st/mesa: Add missing header in st_cb_readpixels.h.

Include mtypes.h for GLcontext symbol.

diff --git a/src/mesa/state_tracker/st_cb_readpixels.h b/src/mesa/state_tracker/st_cb_readpixels.h
index c90ef02..9e1f7b4 100644 (file)
--- a/src/mesa/state_tracker/st_cb_readpixels.h
+++ b/src/mesa/state_tracker/st_cb_readpixels.h
@@ -29,6 +29,10 @@
 #ifndef ST_CB_READPIXELS_H
 #define ST_CB_READPIXELS_H
 
+#include "main/mtypes.h"
+
+struct dd_function_table;
+
 extern struct st_renderbuffer *
 st_get_color_read_renderbuffer(GLcontext *ctx);