C_COMPRESSING
if (!(CPR->c_flags & C_COMPRESSING) &&
datap = cpr_compress_pages(&cpd, npg, CPR->c_flags & C_COMPRESSING);
CPR->c_flags |= C_COMPRESSING;
if (CPR->c_flags & C_COMPRESSING) {
datap = cpr_compress_pages(&cpd, pages, C_COMPRESSING);
if (CPR->c_flags & C_COMPRESSING) {