saveblk
#define blk2short(a) saveblk(a)
#define short2blk(a) saveblk(a)
pv = saveblk(blk);
av = saveblk(av);
Char **saveblk(Char **);
set1(strip(p), saveblk(v), &aliases);
v = gargv = saveblk(v);
gargv = saveblk(v);
vl = vo = saveblk(v);
v = gargv = saveblk(v);
vecp = saveblk(v);