DELETING_RRs
enum { DELETING_RRs = 0, ADDING_RRs } ixfr_state = DELETING_RRs;
ixfr_state = DELETING_RRs;
if(ixfr_state == DELETING_RRs) {
( ixfr_state == DELETING_RRs
ixfr_state = DELETING_RRs;