#define NOLEGEND 0x08 /* use no legend */
#define NOMINOR 0x20 /* Turn off minor gridlines */
#define ONLY_GRAPH 0x24 /* use only graph */
+#define FORCE_RULES_LEGEND 0x40 /* force printing of HRULE and VRULE legend */
enum tmt_en {TMT_SECOND=0,TMT_MINUTE,TMT_HOUR,TMT_DAY,