#define downdate_width(a) cur_active_width[(a)] = cur_active_width[(a)] - mem[prev_r + (a)].cint
/* sec 0861 */
#define update_active(a) active_width[(a)] = active_width[(a)] + mem[r + (a)].cint
+/* sec 0864 */
+#define store_background(a) active_width[a] = background[a]
/* sec 0866 */
#define act_width active_width[1]
#define kern_break() \