Index: OpenSceneGraph/trunk/src/osgPlugins/ffmpeg/FFmpegHeaders.hpp
===================================================================
--- OpenSceneGraph/trunk/src/osgPlugins/ffmpeg/FFmpegHeaders.hpp (revision 9865)
+++ OpenSceneGraph/trunk/src/osgPlugins/ffmpeg/FFmpegHeaders.hpp (revision 10030)
@@ -7,4 +7,7 @@
 {
 #define __STDC_CONSTANT_MACROS
+#ifdef WIN32
+#include <errno.h>    // for error codes defined in avformat.h
+#endif
 #include <stdint.h>
 #include <avcodec.h>