Hi, while examining the upstream commit history: http://vtk.org/gitweb?p=VTK.git;a=history;f=IO/FFMPEG;hb=HEAD I noticed http://vtk.org/gitweb?p=VTK.git;a=commitdiff;h=d48033e127b208228b46f820d454c5eca1c719e1 That commit should fix this FTBFS. Any chance you could update soon? -- regards, Reinhard