__va_list
typedef __va_list __gnuc_va_list;
void verr(int, const char *, __va_list) __dead2 __printf0like(2, 0);
void verrc(int, int, const char *, __va_list) __dead2
void verrx(int, const char *, __va_list) __dead2 __printf0like(2, 0);
void vwarn(const char *, __va_list) __printf0like(1, 0);
void vwarnc(int, const char *, __va_list) __printf0like(2, 0);
void vwarnx(const char *, __va_list) __printflike(1, 0);
__va_list ap;
extern void ath_hal_vprintf(struct ath_hal *, const char*, __va_list)
extern void ath_hal_vprintf(struct ath_hal *, const char*, __va_list)
typedef __va_list __gnuc_va_list; /* compatibility w/GNU headers*/
int sbuf_vprintf(struct sbuf *, const char *, __va_list)
extern int vsnprintf(char *, size_t, const char *, __va_list)