/****************************************************************************
- * RRDtool 1.2.19 Copyright by Tobi Oetiker, 1997-2007
+ * RRDtool 1.2.20 Copyright by Tobi Oetiker, 1997-2007
****************************************************************************
* rrd_rpncalc.h RPN calculator functions
****************************************************************************/
void rpnstack_init(rpnstack_t *rpnstack);
void rpnstack_free(rpnstack_t *rpnstack);
-void parseCDEF_DS(char *def, rrd_t *rrd, int ds_idx);
+void parseCDEF_DS(const char *def, rrd_t *rrd, int ds_idx);
long lookup_DS(void *rrd_vptr, char *ds_name);
short rpn_compact(rpnp_t *rpnp,rpn_cdefds_t **rpnc,short *count);