-# serial 3
+# serial 6
# See if we need to provide linkat replacement.
-dnl Copyright (C) 2009-2010 Free Software Foundation, Inc.
+dnl Copyright (C) 2009-2013 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.
AC_DEFUN([gl_FUNC_LINKAT],
[
AC_REQUIRE([gl_FUNC_OPENAT])
- AC_REQUIRE([gl_FUNC_LINK])
AC_REQUIRE([gl_FUNC_LINK_FOLLOWS_SYMLINK])
AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
AC_CHECK_HEADERS_ONCE([sys/param.h])
if test $ac_cv_func_linkat = no; then
HAVE_LINKAT=0
- AC_LIBOBJ([linkat])
- AC_LIBOBJ([at-func2])
else
AC_CACHE_CHECK([whether linkat(,AT_SYMLINK_FOLLOW) works],
[gl_cv_func_linkat_follow],
#include <errno.h>
#include <stdio.h>
]],
- [[int fd;
- int err;
- int ret;
+ [[int result;
+ int fd;
/* Create a regular file. */
fd = open ("conftest.a", O_CREAT | O_EXCL | O_WRONLY, 0600);
if (fd < 0)
if (linkat (AT_FDCWD, "conftest.a", AT_FDCWD, "conftest.b",
AT_SYMLINK_FOLLOW) < 0)
return 0;
+ result = 0;
/* Test whether a trailing "/" is treated like "/.". */
if (linkat (AT_FDCWD, "conftest.a/", AT_FDCWD, "conftest.c",
AT_SYMLINK_FOLLOW) == 0)
- return 4;
+ result |= 4;
if (linkat (AT_FDCWD, "conftest.a", AT_FDCWD, "conftest.d/",
AT_SYMLINK_FOLLOW) == 0)
- return 5;
- return 0;
+ result |= 8;
+ return result;
]])],
[gl_cv_func_linkat_slash=yes],
[gl_cv_func_linkat_slash=no],
if test "$gl_cv_func_linkat_follow" != yes \
|| test $gl_linkat_slash_bug = 1; then
REPLACE_LINKAT=1
- AC_LIBOBJ([linkat])
AC_DEFINE_UNQUOTED([LINKAT_TRAILING_SLASH_BUG], [$gl_linkat_slash_bug],
[Define to 1 if linkat fails to recognize a trailing slash.])
fi