From fad0fe1d20dcebd93def46dab33560a3d01a3110 Mon Sep 17 00:00:00 2001
From: Simon Josefsson <simon@josefsson.org>
Date: Fri, 8 Jan 2010 23:29:17 +0100
Subject: [PATCH] lib/dup2.c (rpl_dup2): Improve comment. (cherry picked from
 commit 581419c98c50af5daefcbb07ca1cbc16539db072)

---
 ChangeLog  | 4 ++++
 lib/dup2.c | 4 ++--
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index dc7776eab..c87f0dcc0 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2010-01-08  Simon Josefsson  <simon@josefsson.org>
+
+	* lib/dup2.c (rpl_dup2): Improve comment.
+
 2010-01-08  Eric Blake  <ebb9@byu.net>
 
 	dup2: work around mingw bug
diff --git a/lib/dup2.c b/lib/dup2.c
index 9b6a8f632..a4422bf3b 100644
--- a/lib/dup2.c
+++ b/lib/dup2.c
@@ -52,8 +52,8 @@ rpl_dup2 (int fd, int desired_fd)
         }
       return fd;
     }
-  /* Some mingw versions also return the wrong value if desired_fd is
-     negative but not -1.  */
+  /* Wine 1.0.1 return 0 when desired_fd is negative but not -1:
+     http://bugs.winehq.org/show_bug.cgi?id=21289 */
   if (desired_fd < 0)
     {
       errno = EBADF;
-- 
2.11.0