#define B_XMTBUFREADY 1
#define B_ACKPENDING 2
-__attribute__((format(printf, 2, 3)))
+__printf(2, 3)
void debugl1(struct IsdnCardState *cs, char *fmt, ...);
void DChannel_proc_xmt(struct IsdnCardState *cs);
void DChannel_proc_rcv(struct IsdnCardState *cs);