Better NEON Hamming distance

modules/flann/src/precomp.hpp

@@ -5,6 +5,12 @@
 #include <cstdarg>
 #include <sstream>
 
+#ifdef HAVE_CVCONFIG_H
+# include "cvconfig.h"
+#endif
+#include "opencv2/core/core.hpp"
+#include "opencv2/core/internal.hpp"
+
 #include "opencv2/flann/miniflann.hpp"
 #include "opencv2/flann/dist.h"
 #include "opencv2/flann/index_testing.h"
@@ -15,7 +21,6 @@
 
 // index types
 #include "opencv2/flann/all_indices.h"
-
 #include "opencv2/flann/flann_base.hpp"
 
 #endif