add missing #include <stdarg.h>

diff --git a/modules/flann/include/opencv2/flann/logger.h b/modules/flann/include/opencv2/flann/logger.h
index 7fac1de..fa11026 100644 (file)
--- a/modules/flann/include/opencv2/flann/logger.h
+++ b/modules/flann/include/opencv2/flann/logger.h
@@ -33,6 +33,7 @@
 
 
 #include <cstdio>
+#include <stdarg.h>
 #include "opencv2/flann/general.h"
 
 using namespace std;