From fa5c314daad6a222fb410abfed34e8e74266cc35 Mon Sep 17 00:00:00 2001
From: "Richard M. Stallman" <rms@gnu.org>
Date: Wed, 6 Feb 2002 15:44:28 +0000
Subject: [PATCH] (S_ISLNK): Define if not defined.

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

diff --git a/src/filelock.c b/src/filelock.c
index 5bf22dba790..b85f0a68a0e 100644
--- a/src/filelock.c
+++ b/src/filelock.c
@@ -67,6 +67,10 @@ Lisp_Object Vtemporary_file_directory;
 
 #include <utmp.h>
 
+#if !defined (S_ISLNK) && defined (S_IFLNK)
+#define S_ISLNK(m) (((m) & S_IFMT) == S_IFLNK)
+#endif
+
 /* A file whose last-modified time is just after the most recent boot.
    Define this to be NULL to disable checking for this file.  */
 #ifndef BOOT_TIME_FILE
-- 
2.39.2