-#define ETX 26 /* end of text signal for PC-DOS */
-
-/*----------------------------------------------------------------------*/
-
-#define MAXPATHNAME 65 /* max length of pathname + 1 */
-#define MAXFILENAME 13 /* rootname(8) + '.'(1) + extension(3) + EOS */
-#define MAXROOTNAME 8
-#define MAXEXTNAME 3
-#define MAXFULLNAME MAXPATHNAME + MAXFILENAME
-
-/*----------------------------------------------------------------------*/
-
-#define ABS(x) ((x) < 0 ? -(x) : (x))
-#define SQR(x) ((x) * (x))
-
-#ifndef MAX
-#define MAX(a,b) ((a) > (b) ? (a) : (b))
-#endif
-#ifndef MIN
-#define MIN(a,b) ((a) <= (b) ? (a) : (b))
-#endif
-#define ISWAP(a,b) {int i; i = a; a = b; b = i;}
-
-#define CLIP(n,lb,ub) if (n < lb) n = lb; else if (n > ub) n = ub
-#define STR_EQUAL(s1,s2) (strcmp (s1, s2) == 0)