-# mktime.m4 serial 2
-dnl Copyright (C) 2002, 2003 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.
+#serial 7
+dnl Copyright (C) 2002, 2003, 2005 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.
dnl From Jim Meyering.
# --------------
AC_DEFUN([AC_FUNC_MKTIME],
[AC_REQUIRE([AC_HEADER_TIME])dnl
-AC_CHECK_HEADERS(stdlib.h sys/time.h unistd.h)
-AC_CHECK_FUNCS(alarm)
+AC_CHECK_HEADERS_ONCE(sys/time.h)
+AC_CHECK_FUNCS_ONCE(alarm)
AC_CACHE_CHECK([for working mktime], ac_cv_func_working_mktime,
[AC_RUN_IFELSE([AC_LANG_SOURCE(
[[/* Test program from Paul Eggert and Tony Leneis. */
# endif
#endif
-#if HAVE_STDLIB_H
-# include <stdlib.h>
-#endif
-
-#if HAVE_UNISTD_H
-# include <unistd.h>
-#endif
+#include <stdlib.h>
+#include <unistd.h>
#if !HAVE_ALARM
# define alarm(X) /* empty */
])
# Prerequisites of lib/mktime.c.
-AC_DEFUN([gl_PREREQ_MKTIME], [
- AC_REQUIRE([AC_HEADER_STDC])
- AC_CHECK_HEADERS_ONCE(limits.h)
-])
+AC_DEFUN([gl_PREREQ_MKTIME], [:])