Revamp lchown so that it lives in unistd.h where it belongs.

[gnulib.git] / lib / lchown.c

diff --git a/lib/lchown.c b/lib/lchown.c
index fa0826e..4ed4742 100644 (file)
--- a/lib/lchown.c
+++ b/lib/lchown.c
@@ -1,6 +1,6 @@
 /* Provide a stub lchown function for systems that lack it.
 
-   Copyright (C) 1998, 1999, 2002, 2004, 2006 Free Software
+   Copyright (C) 1998, 1999, 2002, 2004, 2006, 2007 Free Software
    Foundation, Inc.
 
    This program is free software; you can redistribute it and/or modify
@@ -21,10 +21,26 @@
 
 #include <config.h>
 
-#include "lchown.h"
+/* If the system chown does not follow symlinks, we don't want it
+   replaced by gnulib's chown, which does follow symlinks.  */
+#if CHOWN_MODIFIES_SYMLINK
+# define REPLACE_CHOWN 0
+#endif
+#include <unistd.h>
 
+#include <errno.h>
 #include <sys/stat.h>
 
+/* Some systems don't have EOPNOTSUPP.  */
+#ifndef EOPNOTSUPP
+# ifdef ENOTSUP
+#  define EOPNOTSUPP ENOTSUP
+# else
+/* Some systems don't have ENOTSUP either.  */
+#  define EOPNOTSUPP EINVAL
+# endif
+#endif
+
 /* Work just like chown, except when FILE is a symbolic link.
    In that case, set errno to EOPNOTSUPP and return -1.
    But if autoconf tests determined that chown modifies