mtablist
if ((mtabp = malloc(sizeof (struct mtablist))) == NULL) {
mtabp->mtab_next = (struct mtablist *)NULL;
struct mtablist *mtabp, *mp;
struct mtablist *mtabp;
struct mtablist *mtabp;
struct mtablist *mtabhead;
struct mtablist **mtabpp, *mtabp;
struct mtablist *mtab_next;
extern struct mtablist *mtabhead;
struct mtablist *mtab;