trace: Include u_string.h.

diff --git a/src/gallium/drivers/trace/tr_stream_wd.c b/src/gallium/drivers/trace/tr_stream_wd.c
index 45309dc..b3b65f0 100644 (file)
--- a/src/gallium/drivers/trace/tr_stream_wd.c
+++ b/src/gallium/drivers/trace/tr_stream_wd.c
@@ -38,6 +38,7 @@
 #include <winddi.h>
 
 #include "pipe/p_util.h"
+#include "util/u_string.h"
 
 #include "tr_stream.h"