984     struct iso_curve *icrvs;  in build_networks()  local
1019 	    for (icrvs = this_plot->iso_crvs;  in build_networks()
1020 		icrvs; icrvs = icrvs->next) {  in build_networks()
1032 		for (icrvs = this_plot->iso_crvs; icrvs; icrvs = icrvs->next)  in build_networks()
1033 		    nverts += icrvs->p_count;  in build_networks()
1172 	    for (crv = 0, icrvs = this_plot->iso_crvs;  in build_networks()
1173 		 icrvs;  in build_networks()
1174 		 crv++, icrvs = icrvs->next) {  in build_networks()
1175 		struct coordinate *points = icrvs->points;  in build_networks()
1203 		} else for (i = 0; i < icrvs->p_count; i++) {  in build_networks()
1214 			store_vertex(icrvs->next->points+i, 0, 0);  in build_networks()
1295 	for (crv = 0, icrvs = this_plot->iso_crvs;  in build_networks()
1296 	     icrvs;  in build_networks()
1297 	     crv++, icrvs = icrvs->next) {  in build_networks()
1298 	    struct coordinate *points = icrvs->points;  in build_networks()
1300 	    for (i = 0; i < icrvs->p_count; i++) {  in build_networks()