FSERROR           128 jquant1.c      typedef INT16 FSERROR;		/* 16 bits should be enough */
FSERROR           131 jquant1.c      typedef INT32 FSERROR;		/* may need more than 16 bits */
FSERROR           181 jquant2.c      typedef INT16 FSERROR;		/* 16 bits should be enough */
FSERROR           184 jquant2.c      typedef INT32 FSERROR;		/* may need more than 16 bits */