From 509a01fadd1261181b7a24120d78706415c412c0 Mon Sep 17 00:00:00 2001
From: Sascha Wildner <saw@online.de>
Date: Sun, 1 Aug 2010 11:02:12 +0200
Subject: [PATCH] Mark the *at(2) system calls' prototypes as being new in IEEE
 1003.1-2008.

This is to prevent them from being exposed if an earlier version is
explicitly requested.

Mark them with __BSD_VISIBLE too so they are still exposed in our default
programming environment.
---
 include/unistd.h | 8 +++++++-
 sys/sys/fcntl.h  | 2 ++
 sys/sys/stat.h   | 4 ++++
 3 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/include/unistd.h b/include/unistd.h
index d864fb7497..8ad0c0f588 100644
--- a/include/unistd.h
+++ b/include/unistd.h
@@ -315,11 +315,15 @@ __BEGIN_DECLS
 /* 1003.1-1990 */
 void	 _exit(int) __dead2;
 int	 access(const char *, int);
+#if __BSD_VISIBLE || __POSIX_VISIBLE >= 200809
 int	 faccessat(int, const char *, int, int);
+#endif
 unsigned int	 alarm(unsigned int);
 int	 chdir(const char *);
 int	 chown(const char *, uid_t, gid_t);
+#if __BSD_VISIBLE || __POSIX_VISIBLE >= 200809
 int	 fchownat(int, const char *, uid_t, gid_t, int);
+#endif
 int	 close(int);
 int	 dup(int);
 int	 dup2(int, int);
@@ -361,9 +365,11 @@ long	 sysconf(int);
 pid_t	 tcgetpgrp(int);
 int	 tcsetpgrp(int, pid_t);
 char	*ttyname(int);
-int	ttyname_r(int, char *, size_t);
+int	 ttyname_r(int, char *, size_t);
 int	 unlink(const char *);
+#if __BSD_VISIBLE || __POSIX_VISIBLE >= 200809
 int	 unlinkat(int, const char *, int);
+#endif
 ssize_t	 write(int, const void *, size_t);
 
 /* 1003.2-1992 */
diff --git a/sys/sys/fcntl.h b/sys/sys/fcntl.h
index bd49cf42c3..8faca3e0f8 100644
--- a/sys/sys/fcntl.h
+++ b/sys/sys/fcntl.h
@@ -242,7 +242,9 @@ union fcntl_dat {
 
 __BEGIN_DECLS
 int	open (const char *, int, ...);
+#if __BSD_VISIBLE || __POSIX_VISIBLE >= 200809
 int	openat (int, const char *, int, ...);
+#endif
 int	creat (const char *, mode_t);
 int	fcntl (int, int, ...);
 #ifndef _POSIX_SOURCE
diff --git a/sys/sys/stat.h b/sys/sys/stat.h
index 693080e874..6c07fc8e60 100644
--- a/sys/sys/stat.h
+++ b/sys/sys/stat.h
@@ -213,9 +213,13 @@ struct stat {
 
 __BEGIN_DECLS
 int	chmod (const char *, mode_t);
+#if __BSD_VISIBLE || __POSIX_VISIBLE >= 200809
 int	fchmodat (int, const char *, mode_t, int);
+#endif
 int	fstat (int, struct stat *);
+#if __BSD_VISIBLE || __POSIX_VISIBLE >= 200809
 int	fstatat (int, const char *, struct stat *, int);
+#endif
 int	mkdir (const char *, mode_t);
 int	mkfifo (const char *, mode_t);
 #if !defined(_MKNOD_DECLARED) && __XSI_VISIBLE
-- 
2.41.0