===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/xargs/xargs.c,v
retrieving revision 1.7
retrieving revision 1.8
diff -u -r1.7 -r1.8
--- src/usr.bin/xargs/xargs.c	1998/04/26 17:12:48	1.7
+++ src/usr.bin/xargs/xargs.c	1998/06/23 00:22:58	1.8
@@ -1,4 +1,4 @@
-/*	$OpenBSD: xargs.c,v 1.7 1998/04/26 17:12:48 deraadt Exp $	*/
+/*	$OpenBSD: xargs.c,v 1.8 1998/06/23 00:22:58 deraadt Exp $	*/
 /*	$NetBSD: xargs.c,v 1.7 1994/11/14 06:51:41 jtc Exp $	*/
 
 /*-
@@ -47,7 +47,7 @@
 #if 0
 static char sccsid[] = "@(#)xargs.c	8.1 (Berkeley) 6/6/93";
 #endif
-static char rcsid[] = "$OpenBSD: xargs.c,v 1.7 1998/04/26 17:12:48 deraadt Exp $";
+static char rcsid[] = "$OpenBSD: xargs.c,v 1.8 1998/06/23 00:22:58 deraadt Exp $";
 #endif /* not lint */
 
 #include <sys/types.h>
@@ -78,6 +78,7 @@
 	register char *p, *bbp, *ebp, **bxp, **exp, **xp;
 	int cnt, indouble, insingle, nargs, nflag, nline, xflag;
 	char **av, *argp;
+	int arg_max;
 
 	setlocale(LC_ALL, "");
 
@@ -95,7 +96,9 @@
 	 * probably not worthwhile.
 	 */
 	nargs = 5000;
-	nline = ARG_MAX - 4 * 1024;
+	if ((arg_max = sysconf(_SC_ARG_MAX)) == -1)
+		errx(1, "sysconf(_SC_ARG_MAX) failed");
+	nline = arg_max - 4 * 1024;
 	nflag = xflag = 0;
 	while ((ch = getopt(argc, argv, "0n:s:tx")) != -1)
 		switch(ch) {