-# safe-read.m4 serial 1
-dnl Copyright (C) 2002 Free Software Foundation, Inc.
-dnl This file is free software, distributed under the terms of the GNU
-dnl General Public License. As a special exception to the GNU General
-dnl Public License, this file may be distributed as part of a program
-dnl that contains a configuration script generated by Autoconf, under
-dnl the same distribution terms as the rest of that program.
-
-AC_DEFUN([gl_SAFE_READ],
-[
- gl_PREREQ_SAFE_READ
-])
+# safe-read.m4 serial 6
+dnl Copyright (C) 2002-2003, 2005-2006, 2009-2011 Free Software Foundation,
+dnl 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.
# Prerequisites of lib/safe-read.c.
AC_DEFUN([gl_PREREQ_SAFE_READ],
[
- AC_CHECK_HEADERS_ONCE(unistd.h)
+ AC_REQUIRE([gt_TYPE_SSIZE_T])
])