MERGE_FNUM
if (fstack_count == MERGE_FNUM) {
if (fstack_1_count == MERGE_FNUM) {
if (fstack_2_count == MERGE_FNUM) {
if (i > MERGE_FNUM)
i = MERGE_FNUM;
if (count <= MERGE_FNUM) {
fstack_count = count > MERGE_FNUM ? MERGE_FNUM : count;
count -= MERGE_FNUM - 1;
struct mfile *flistb[MERGE_FNUM], **flist = flistb, *cfile;
static struct mfile fstack[MERGE_FNUM];
static struct mfile fstack_1[MERGE_FNUM];
static struct mfile fstack_2[MERGE_FNUM];