per_line_cost    3810 src/dispextern.h extern int per_line_cost (const char *);
per_line_cost     915 src/scroll.c   		  per_line_cost (multi_string) * coefficient,
per_line_cost     921 src/scroll.c   		  per_line_cost (one_line_string),
per_line_cost    1238 src/term.c     	      || per_line_cost (tty->TS_repeat) < 9000 / baud_rate))