From 36a16de45cb007ddc44490c82b023c9e1389d4b4 Mon Sep 17 00:00:00 2001
From: Jim Meyering <jim@meyering.net>
Date: Fri, 18 Jan 2002 23:39:06 +0000
Subject: [PATCH] (main):  Issue a warning for obsolete usage, unless
 POSIXLY_CORRECT.

---
 src/sort.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/sort.c b/src/sort.c
index 6baf40f..2c86177 100644
--- a/src/sort.c
+++ b/src/sort.c
@@ -2292,6 +2292,10 @@ main (int argc, char **argv)
 		}
 	      else
 		{
+		  if (! posix_pedantic)
+		    error (0, 0,
+			   _("warning: `sort %s' is obsolete; use `sort -k'"),
+			   optarg);
 		  if (optind != argc && argv[optind][0] == '-'
 		      && ISDIGIT (argv[optind][1]))
 		    {
-- 
2.7.4