D_IFDEF
if (opt == D_IFDEF)
opt = D_IFDEF;
if (opt == D_IFDEF) {
if (opt == D_IFDEF) {
if (opt != D_IFDEF && a > b && c > d)
if (opt == D_NORMAL || opt == D_IFDEF) {
if (opt == D_IFDEF && oldfile) {
if (opt == D_IFDEF) {
if (opt != D_IFDEF)