From 309f2a6e7012690e86f34448bebd0e3cd1b4ed22 Mon Sep 17 00:00:00 2001
From: "Richard M. Stallman" <rms@gnu.org>
Date: Thu, 21 May 1998 02:05:53 +0000
Subject: [PATCH] (init_buffer): Support DOS_NT absolute file names.

---
 src/buffer.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/buffer.c b/src/buffer.c
index 979c9f872f0..b5e9318c10b 100644
--- a/src/buffer.c
+++ b/src/buffer.c
@@ -3951,7 +3951,8 @@ init_buffer ()
 
   /* If PWD is accurate, use it instead of calling getwd.  This is faster
      when PWD is right, and may avoid a fatal error.  */
-  if ((pwd = getenv ("PWD")) != 0 && IS_DIRECTORY_SEP (*pwd)
+  if ((pwd = getenv ("PWD")) != 0
+      && (IS_DIRECTORY_SEP (*pwd) || (*pwd && IS_DEVICE_SEP (pwd[1])))
       && stat (pwd, &pwdstat) == 0
       && stat (".", &dotstat) == 0
       && dotstat.st_ino == pwdstat.st_ino
-- 
2.39.2