Index: builtin.c
===================================================================
RCS file: /cvsroot/xmlgawk/xmlgawk/builtin.c,v
retrieving revision 1.6
diff -b -u -p -r1.6 builtin.c
--- builtin.c	14 Nov 2005 15:27:24 -0000	1.6
+++ builtin.c	20 Dec 2005 14:45:38 -0000
@@ -937,16 +937,15 @@ check_pos:
 				goto pr_tail;
 
 			if (tmpval < 0) {
-				if (tmpval < INTMAX_MIN)
+				uval = -tmpval;
+				if (-(AWKNUM)uval != tmpval)
 					goto out_of_range;
 				sgn = TRUE;
-				uval = - (uintmax_t) (intmax_t) tmpval;
 			} else {
 				/* Use !, so that NaNs are out of range.  */
-				if (! (tmpval <= UINTMAX_MAX))
+				if ((uval = (uintmax_t) tmpval) != tmpval)
 					goto out_of_range;
 				sgn = FALSE;
-				uval = (uintmax_t) tmpval;
 			}
 			ii = jj = 0;
 			do {