static inline bool parse_opt_D(const char *arg)
static inline int parse_opt_D(const char *arg)
static inline bool parse_opt_D(const char *arg){	int val = atoi(arg);		if (set_channel_flag(&default_drumchannels, val, "Drum channel"))		return 1;	if (val < 0)		val = -val;	set_channel_flag(&default_drumchannel_mask, val, "Drum channel");	return 0;}