double rrd_version(void);
int rrd_xport(int, char **, int *, time_t *, time_t *,
unsigned long *, unsigned long *,
char ***, rrd_value_t **);
/* thread-safe (hopefully) */
double rrd_version(void);
int rrd_xport(int, char **, int *, time_t *, time_t *,
unsigned long *, unsigned long *,
char ***, rrd_value_t **);
/* thread-safe (hopefully) */