- make sure the code compiles under gcc-4.6

diff --git a/modules/core/include/opencv2/core/core.hpp b/modules/core/include/opencv2/core/core.hpp
index ba6a0d1..ed24aa8 100644 (file)
--- a/modules/core/include/opencv2/core/core.hpp
+++ b/modules/core/include/opencv2/core/core.hpp
@@ -55,6 +55,7 @@
 #include <limits.h>
 #include <algorithm>
 #include <cmath>
+#include <cstddef>
 #include <complex>
 #include <map>
 #include <new>