MDMBUF
{ "mdmbuf", MDMBUF, 0 },
{ "-mdmbuf", 0, MDMBUF },
put("-mdmbuf", MDMBUF, 0); /* XXX mdmbuf == dtrflow */
SET(cflag, MDMBUF);
CLR(cflag, MDMBUF);
if (cflag&MDMBUF)
flags |= MDMBUF;
if (flags & MDMBUF)
cflag |= MDMBUF;
cflag &= ~MDMBUF;
#define LMDMBUF (MDMBUF>>16)
{ "mdmbuf", MDMBUF, 0 },
{ "-mdmbuf", 0, MDMBUF },