mkdir, mkdirat: fix cygwin 1.5.x bug

[gnulib.git] / m4 / fcntl_h.m4

diff --git a/m4/fcntl_h.m4 b/m4/fcntl_h.m4
index e3b9aa5..118a4fa 100644 (file)
--- a/m4/fcntl_h.m4
+++ b/m4/fcntl_h.m4
@@ -1,5 +1,6 @@
+# serial 5
 # Configure fcntl.h.
-dnl Copyright (C) 2006, 2007 Free Software Foundation, Inc.
+dnl Copyright (C) 2006, 2007, 2009 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.
@@ -9,7 +10,9 @@ dnl Written by Paul Eggert.
 AC_DEFUN([gl_FCNTL_H],
 [
   AC_REQUIRE([gl_FCNTL_H_DEFAULTS])
-  AC_CACHE_CHECK([for working fcntl.h], gl_cv_header_working_fcntl_h,
+  dnl Persuade glibc <fcntl.h> to define O_NOATIME and O_NOFOLLOW.
+  AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
+  AC_CACHE_CHECK([for working fcntl.h], [gl_cv_header_working_fcntl_h],
     [AC_RUN_IFELSE(
        [AC_LANG_PROGRAM(
          [[#include <sys/types.h>
@@ -35,6 +38,7 @@ AC_DEFUN([gl_FCNTL_H],
              if (symlink (".", sym) != 0
                  || close (open (sym, O_RDONLY | O_NOFOLLOW)) == 0)
                status |= 32;
+             unlink (sym);
            }
            {
              static char const file[] = "confdefs.h";
@@ -88,7 +92,10 @@ AC_DEFUN([gl_FCNTL_MODULE_INDICATOR],
 
 AC_DEFUN([gl_FCNTL_H_DEFAULTS],
 [
-  GNULIB_OPEN=0;  AC_SUBST([GNULIB_OPEN])
+  GNULIB_OPEN=0;    AC_SUBST([GNULIB_OPEN])
+  GNULIB_OPENAT=0;  AC_SUBST([GNULIB_OPENAT])
   dnl Assume proper GNU behavior unless another module says otherwise.
-  REPLACE_OPEN=0; AC_SUBST([REPLACE_OPEN])
+  HAVE_OPENAT=1;    AC_SUBST([HAVE_OPENAT])
+  REPLACE_OPEN=0;   AC_SUBST([REPLACE_OPEN])
+  REPLACE_OPENAT=0; AC_SUBST([REPLACE_OPENAT])
 ])