From: Jim Meyering <jim@meyering.net>
Date: Mon, 12 Jan 2004 09:41:29 +0000 (+0000)
Subject: (main): Warn about following stdin only when it's a tty.
X-Git-Tag: v5.1.1~78
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ace768ee42c3202071cb0e0c4916994fccc9fdb6;p=thirdparty%2Fcoreutils.git

(main): Warn about following stdin only when it's a tty.
---

diff --git a/src/tail.c b/src/tail.c
index 7f992d8962..7e574a3eba 100644
--- a/src/tail.c
+++ b/src/tail.c
@@ -1725,7 +1725,7 @@ main (int argc, char **argv)
     /* When following forever, warn if any file is `-'.
        This is only a warning, since tail's output (before a failing seek,
        and that from any non-stdin files) might still be useful.  */
-    if (forever && found_hyphen)
+    if (forever && found_hyphen && isatty (STDIN_FILENO))
       error (0, 0, _("warning: following standard input"
 		     " indefinitely is ineffective"));
   }