Hi, after patching, while compiling: vdrrun.c: In function `main': vdrrun.c:86: `SCHED_VDR' undeclared (first use in this function) vdrrun.c:86: (Each undeclared identifier is reported only once vdrrun.c:86: for each function it appears in.) - > 2. complie vdrrun.c (gcc vdrrun.c -o vdrrun)