In file included from libavfilter/opencl.h:31:0, from libavfilter/opencl.c:26: ./libavutil/hwcontext_opencl.h:25:10: fatal error: CL/cl.h: No such file or directory #include ^~~~~~~~~ compilation terminated. make: *** [libavfilter/opencl.o] Error 1 make: *** Waiting for unfinished jobs....