open, fopen: Update regarding AIX.

[gnulib.git] / m4 / fchdir.m4

diff --git a/m4/fchdir.m4 b/m4/fchdir.m4
index f0e4dc0..7bc691d 100644 (file)
--- a/m4/fchdir.m4
+++ b/m4/fchdir.m4
@@ -1,5 +1,5 @@
-# fchdir.m4 serial 10
-dnl Copyright (C) 2006-2009 Free Software Foundation, Inc.
+# fchdir.m4 serial 14
+dnl Copyright (C) 2006-2010 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -11,7 +11,7 @@ AC_DEFUN([gl_FUNC_FCHDIR],
   AC_REQUIRE([gl_SYS_STAT_H_DEFAULTS])
   AC_CHECK_FUNCS_ONCE([fchdir])
   if test $ac_cv_func_fchdir = no; then
-    REPLACE_FCHDIR=1
+    HAVE_FCHDIR=0
     AC_LIBOBJ([fchdir])
     gl_PREREQ_FCHDIR
     AC_DEFINE([REPLACE_FCHDIR], [1],
@@ -19,7 +19,6 @@ AC_DEFUN([gl_FUNC_FCHDIR],
     dnl We must also replace anything that can manipulate a directory fd,
     dnl to keep our bookkeeping up-to-date.  We don't have to replace
     dnl fstatat, since no platform has fstatat but lacks fchdir.
-    REPLACE_FSTAT=1
     REPLACE_OPENDIR=1
     REPLACE_CLOSEDIR=1
     REPLACE_DUP=1
@@ -27,17 +26,19 @@ AC_DEFUN([gl_FUNC_FCHDIR],
     gl_REPLACE_CLOSE
     gl_REPLACE_DUP2
     dnl dup3 is already unconditionally replaced
+    gl_REPLACE_FCNTL
     gl_REPLACE_DIRENT_H
     AC_CACHE_CHECK([whether open can visit directories],
       [gl_cv_func_open_directory_works],
       [AC_RUN_IFELSE([AC_LANG_PROGRAM([[#include <fcntl.h>
-]], [return open(".", O_RDONLY);])],
+]], [return open(".", O_RDONLY) < 0;])],
         [gl_cv_func_open_directory_works=yes],
         [gl_cv_func_open_directory_works=no],
         [gl_cv_func_open_directory_works="guessing no"])])
     if test "$gl_cv_func_open_directory_works" != yes; then
       AC_DEFINE([REPLACE_OPEN_DIRECTORY], [1], [Define to 1 if open() should
 work around the inability to open a directory.])
+      REPLACE_FSTAT=1
     fi
   fi
 ])