sm: handle runlevel change

Signed-off-by: Jonas Johansson <jonas.johansson@westermo.se>

finit.h

@@ -34,6 +34,7 @@
 #include <sys/stat.h>
 #include <unistd.h>
 
+#include "sm.h"
 #include "libite/lite.h"
 
 #define CMD_SIZE                256
@@ -78,6 +79,7 @@ extern char  *username;
 extern char  *runparts;
 extern char  *console;
 extern char  *__progname;
+extern sm_t  sm;
 
 #endif /* FINIT_H_ */