From f2adc0075d009d8ced73b063e752e483a1cd5fff Mon Sep 17 00:00:00 2001
From: Bruno Haible <bruno@clisp.org>
Date: Sun, 23 Aug 2009 02:39:38 +0200
Subject: [PATCH] Improve comment about pipe2.

---
 lib/unistd.in.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/unistd.in.h b/lib/unistd.in.h
index 7dc33bc691..a79ebbe87d 100644
--- a/lib/unistd.in.h
+++ b/lib/unistd.in.h
@@ -537,7 +537,9 @@ extern int link (const char *path1, const char *path2);
    The flags are a bitmask, possibly including O_CLOEXEC (defined in <fcntl.h>)
    and O_TEXT, O_BINARY (defined in "binary-io.h").
    Store the read-end as fd[0] and the write-end as fd[1].
-   Return 0 upon success, or -1 with errno set upon failure.  */
+   Return 0 upon success, or -1 with errno set upon failure.
+   See also the Linux man page at
+   <http://www.kernel.org/doc/man-pages/online/pages/man2/pipe2.2.html>.  */
 # if !@HAVE_PIPE2@
 extern int pipe2 (int fd[2], int flags);
 # endif
-- 
2.30.2