NULL is no longer defined in what is included resulting in compile time errors.
Include stddef.h to make it available
--- git/utils/dvb/dvb_frontend.h~	2013-02-05 18:13:39.000000000 +0100
+++ git/utils/dvb/dvb_frontend.h	2013-02-05 18:14:43.723139932 +0100
@@ -26,6 +26,7 @@
 #ifndef _DVBFRONTEND_H_
 #define _DVBFRONTEND_H_
 
+#include <stddef.h>
 #include <linux/types.h>
 
 typedef enum fe_type {