I have faced today this compilation error (windows): libavutil/atomic.c:101:2: error: #error "Threading is enabled, but there is no i mplementation of atomic operations available" make[1]: *** [libavutil/atomic.o] Error 1 make[1]: Leaving directory `/home/me/mplayer/ffmpeg' make: *** [ffmpeg/libavutil/libavutil.a] Error 2 Revision 35988