Quoting ChangeLog of X11's videoproto package: vldXvMC.h: stop uselessly including XvMClib.h --- src/video_out/xxmc.h +++ src/video_out/xxmc.h @@ -77,10 +77,10 @@ #include <X11/extensions/XShm.h> #include <X11/extensions/Xv.h> #include <X11/extensions/Xvlib.h> +#include <X11/extensions/XvMClib.h> #ifdef HAVE_VLDXVMC #include <X11/extensions/vldXvMC.h> #else - #include <X11/extensions/XvMClib.h> #include <X11/extensions/XvMC.h> #endif