isatty: Fix test failure of ptsname_r on native Windows.

[gnulib.git] / lib / file-has-acl.c

diff --git a/lib/file-has-acl.c b/lib/file-has-acl.c
index 1b7e392..89a63a6 100644 (file)
--- a/lib/file-has-acl.c
+++ b/lib/file-has-acl.c
@@ -1,6 +1,6 @@
 /* Test whether a file has a nontrivial access control list.
 
-   Copyright (C) 2002-2003, 2005-2011 Free Software Foundation, Inc.
+   Copyright (C) 2002-2003, 2005-2012 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -17,6 +17,12 @@
 
    Written by Paul Eggert, Andreas Grünbacher, and Bruno Haible.  */
 
+/* Without this pragma, gcc 4.7.0 20120126 may suggest that the
+   file_has_acl function might be candidate for attribute 'const'  */
+#if (__GNUC__ == 4 && 6 <= __GNUC_MINOR__) || 4 < __GNUC__
+# pragma GCC diagnostic ignored "-Wsuggest-attribute=const"
+#endif
+
 #include <config.h>
 
 #include "acl.h"
@@ -439,7 +445,8 @@ acl_nontrivial (int count, struct acl *entries)
 
 /* Return 1 if NAME has a nontrivial access control list, 0 if NAME
    only has no or a base access control list, and -1 (setting errno)
-   on error.  SB must be set to the stat buffer of FILE.  */
+   on error.  SB must be set to the stat buffer of NAME, obtained
+   through stat() or lstat().  */
 
 int
 file_has_acl (char const *name, struct stat const *sb)
@@ -453,20 +460,12 @@ file_has_acl (char const *name, struct stat const *sb)
       /* Linux, FreeBSD, MacOS X, IRIX, Tru64 */
       int ret;
 
-      if (HAVE_ACL_EXTENDED_FILE || HAVE_ACL_EXTENDED_FILE_NOFOLLOW) /* Linux */
+      if (HAVE_ACL_EXTENDED_FILE) /* Linux */
         {
-#  if HAVE_ACL_EXTENDED_FILE_NOFOLLOW
-          /* acl_extended_file_nofollow() uses lgetxattr() in order to prevent
-             unnecessary mounts, but it returns the same result as we already
-             know that NAME is not a symbolic link at this point (modulo the
-             TOCTTOU race condition).  */
-          ret = acl_extended_file_nofollow (name);
-#  else
           /* On Linux, acl_extended_file is an optimized function: It only
              makes two calls to getxattr(), one for ACL_TYPE_ACCESS, one for
              ACL_TYPE_DEFAULT.  */
           ret = acl_extended_file (name);
-#  endif
         }
       else /* FreeBSD, MacOS X, IRIX, Tru64 */
         {