diff -urN coreutils-5.2.0.orig/src/seq.c coreutils-5.2.0/src/seq.c
--- coreutils-5.2.0.orig/src/seq.c	2004-02-07 12:39:17.000000000 -0800
+++ coreutils-5.2.0/src/seq.c	2004-03-03 10:10:17.000000000 -0800
@@ -56,7 +56,7 @@
 static double first;
 
 /* The increment.  */
-static double step = 1.0;
+static double step;
 
 /* The last number.  */
 static double last;
@@ -298,6 +298,7 @@
 main (int argc, char **argv)
 {
   int optc;
+  int step_is_set;
 
   /* The printf(3) format used for output.  */
   char *format_str = NULL;
@@ -313,6 +314,7 @@
   equal_width = 0;
   separator = "\n";
   first = 1.0;
+  step_is_set = 0;
 
   /* Figure out the locale's idea of a decimal point.  */
 #if HAVE_LOCALECONV
@@ -397,6 +399,7 @@
       if (optind < argc)
 	{
 	  step = last;
+	  step_is_set = 1;
 	  last = scan_double_arg (argv[optind++]);
 	}
     }
@@ -408,6 +411,13 @@
       usage (EXIT_FAILURE);
     }
 
+  if (!step_is_set)
+    {
+	  step = (first <= last) ? 1.0 : -1.0;
+	  if (step < 0)
+    error (0, 0, _("Please specify step of -1 since this behaviour is obsolete and will be removed in the future"));
+	}
+
   if (format_str == NULL)
     {
       if (equal_width)
--- coreutils-5.2.1/tests/seq/basic.orig	2005-01-08 04:29:19.869695048 -0500
+++ coreutils-5.2.1/tests/seq/basic	2005-01-08 04:29:21.095508696 -0500
@@ -24,8 +24,6 @@
 
 my @Tests =
   (
-   ['onearg-1',	qw(10),		{OUT => [(1..10)]}],
-   ['onearg-2',	qw(-1)],
    ['neg-1',	qw(-10 10 10),	{OUT => [qw(-10 0 10)]}],
    ['neg-2',	qw(-.1 .1 .1),	{OUT => [qw(-0.1 0 0.1)]}],
    ['neg-3',	qw(1 -1 0),	{OUT => [qw(1 0)]}],