fixed Xcode 4.1 compile errors in png codec in highgui

0bf4d9ec · Vadim Pisarevsky · 6d288978 · 0bf4d9ec
Commit 0bf4d9ec authored Jul 21, 2011 by Vadim Pisarevsky
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grfmt_png.cpp modules/highgui/src/grfmt_png.cpp +1 -0

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--- a/modules/highgui/src/grfmt_png.cpp
+++ b/modules/highgui/src/grfmt_png.cpp
@@ -56,6 +56,7 @@
 #else
 #include <png.h>
 #endif
+#include <zlib.h>
 #include "grfmt_png.hpp"

 namespace cv