diff -Nru OpenSceneGraph-2.9.7.orig//src/osgPlugins/ffmpeg/CMakeLists.txt OpenSceneGraph-2.9.7/src/osgPlugins/ffmpeg/CMakeLists.txt
--- OpenSceneGraph-2.9.7.orig//src/osgPlugins/ffmpeg/CMakeLists.txt	2009-07-03 21:16:53.000000000 +0200
+++ OpenSceneGraph-2.9.7/src/osgPlugins/ffmpeg/CMakeLists.txt	2011-03-05 19:43:42.645431330 +0100
@@ -2,6 +2,7 @@
 LINK_DIRECTORIES(${FFMPEG_LIBRARY_DIRS})
 SET(TARGET_EXTERNAL_LIBRARIES ${FFMPEG_LIBRARIES} )
 
+ADD_DEFINITIONS(-D__STDC_CONSTANT_MACROS)
 
 IF(FFMPEG_LIBSWSCALE_FOUND)