-#serial 8
-dnl Copyright (C) 2002, 2003, 2005, 2006 Free Software Foundation, Inc.
+#serial 12
+dnl Copyright (C) 2002, 2003, 2005, 2006, 2007 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.
-# Redefine AC_FUNC_MKTIME, to fix a bug in Autoconf 2.60a and earlier.
+# Redefine AC_FUNC_MKTIME, to fix a bug in Autoconf 2.61a and earlier.
# This redefinition can be removed once a new version of Autoconf is assumed.
# The redefinition is taken from
-# <http://cvs.sv.gnu.org/viewcvs/*checkout*/autoconf/lib/autoconf/functions.m4?rev=1.108&root=autoconf>.
+# <http://cvs.sv.gnu.org/viewcvs/*checkout*/autoconf/autoconf/lib/autoconf/functions.m4?rev=1.119>.
# AC_FUNC_MKTIME
# --------------
AC_DEFUN([AC_FUNC_MKTIME],
-[AC_REQUIRE([AC_HEADER_TIME])dnl
-AC_CHECK_HEADERS_ONCE(sys/time.h unistd.h)
+[AC_CHECK_HEADERS_ONCE(unistd.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. */
-#ifdef TIME_WITH_SYS_TIME
-# include <sys/time.h>
-# include <time.h>
-#else
-# ifdef HAVE_SYS_TIME_H
-# include <sys/time.h>
-# else
-# include <time.h>
-# endif
-#endif
-
+#include <limits.h>
#include <stdlib.h>
+#include <time.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
isn't worth using anyway. */
alarm (60);
- for (time_t_max = 1; 0 < time_t_max; time_t_max *= 2)
- continue;
- time_t_max--;
- if ((time_t) -1 < 0)
- for (time_t_min = -1; (time_t) (time_t_min * 2) < 0; time_t_min *= 2)
- continue;
+ for (;;)
+ {
+ t = (time_t_max << 1) + 1;
+ if (t <= time_t_max)
+ break;
+ time_t_max = t;
+ }
+ time_t_min = - ((time_t) ~ (time_t) 0 == (time_t) -1) - time_t_max;
+
delta = time_t_max / 997; /* a suitable prime number */
for (i = 0; i < N_STRINGS; i++)
{
&& mktime_test ((time_t) (60 * 60 * 24))))
return 1;
- for (j = 1; 0 < j; j *= 2)
+ for (j = 1; ; j <<= 1)
if (! bigtime_test (j))
return 1;
- if (! bigtime_test (j - 1))
+ else if (INT_MAX / 2 < j)
+ break;
+ if (! bigtime_test (INT_MAX))
return 1;
}
return ! (irix_6_4_bug () && spring_forward_gap () && year_2050_test ());
AC_DEFUN([gl_FUNC_MKTIME],
[
- AC_REQUIRE([AC_FUNC_MKTIME])
+ AC_FUNC_MKTIME
+ dnl Note: AC_FUNC_MKTIME does AC_LIBOBJ(mktime).
if test $ac_cv_func_working_mktime = no; then
AC_DEFINE(mktime, rpl_mktime,
[Define to rpl_mktime if the replacement function should be used.])