DBG3
#define DBG3 (void) printf
#define DBG3(a, b, c)
#define DBG3 printf
#define DBG3(a, b, c)
#define DBG3(flags, fmt, a, b, c) \
#define DBG3(flags, fmt, a, b, c)
#define DBG3(_f, _a, _b, _c) \
#define DBG3(_type, _fmt, _a1, _a2, _a3) \
#define DBG3(_type, _fmt, _a1, _a2, _a3)
#define DBG3(_type, _fmt, _a1, _a2, _a3)
#define DBG3(_type, _fmt, _a1, _a2, _a3) \
#define DBG3(flag, psp, fmt, a1, a2, a3) \
#define DBG3(flag, psp, fmt, a1, a2, a3)
#define DBG3(flag, psp, fmt, a1, a2, a3) \
#define DBG3(flag, psp, fmt, a1, a2, a3)
#define DBG3 n2rng_dprintf
#define DBG3(vca, lvl, fmt, arg1, arg2, arg3)