Mercurial > hg > octave-kai > gnulib-hg

annotate m4/mktime.m4 @ 5611:87c42e194f4a

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Use an all-permissive copyright notice, recommended by RMS.
author Paul Eggert <eggert@cs.ucla.edu>
date Sun, 23 Jan 2005 08:06:57 +0000
parents bb2816d0923f
children fd0ccce602e4
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
5611
87c42e194f4a Use an all-permissive copyright notice, recommended by RMS.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4666
diff changeset
1 # mktime.m4 serial 5
4348
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
2 dnl Copyright (C) 2002, 2003 Free Software Foundation, Inc.
5611
87c42e194f4a Use an all-permissive copyright notice, recommended by RMS.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4666
diff changeset
3 dnl This file is free software; the Free Software Foundation
87c42e194f4a Use an all-permissive copyright notice, recommended by RMS.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4666
diff changeset
4 dnl gives unlimited permission to copy and/or distribute it,
87c42e194f4a Use an all-permissive copyright notice, recommended by RMS.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4666
diff changeset
5 dnl with or without modifications, as long as this notice is preserved.
4107
7c1a6b73f48e An autoconf macro for its associated module.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
6
7c1a6b73f48e An autoconf macro for its associated module.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
7 dnl From Jim Meyering.
7c1a6b73f48e An autoconf macro for its associated module.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
8
4348
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
9 # Redefine AC_FUNC_MKTIME, to fix a bug in Autoconf 2.57 and earlier.
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
10 # This redefinition can be removed once a new version of Autoconf comes out.
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
11 # The redefinition is taken from
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
12 # <http://savannah.gnu.org/cgi-bin/viewcvs/*checkout*/autoconf/autoconf/lib/autoconf/functions.m4?rev=1.78>.
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
13 # AC_FUNC_MKTIME
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
14 # --------------
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
15 AC_DEFUN([AC_FUNC_MKTIME],
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
16 [AC_REQUIRE([AC_HEADER_TIME])dnl
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
17 AC_CHECK_HEADERS(stdlib.h sys/time.h unistd.h)
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
18 AC_CHECK_FUNCS(alarm)
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
19 AC_CACHE_CHECK([for working mktime], ac_cv_func_working_mktime,
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
20 [AC_RUN_IFELSE([AC_LANG_SOURCE(
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
21 [[/* Test program from Paul Eggert and Tony Leneis. */
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
22 #if TIME_WITH_SYS_TIME
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
23 # include <sys/time.h>
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
24 # include <time.h>
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
25 #else
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
26 # if HAVE_SYS_TIME_H
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
27 # include <sys/time.h>
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
28 # else
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
29 # include <time.h>
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
30 # endif
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
31 #endif
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
32
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
33 #if HAVE_STDLIB_H
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
34 # include <stdlib.h>
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
35 #endif
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
36
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
37 #if HAVE_UNISTD_H
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
38 # include <unistd.h>
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
39 #endif
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
40
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
41 #if !HAVE_ALARM
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
42 # define alarm(X) /* empty */
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
43 #endif
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
44
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
45 /* Work around redefinition to rpl_putenv by other config tests. */
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
46 #undef putenv
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
47
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
48 static time_t time_t_max;
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
49 static time_t time_t_min;
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
50
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
51 /* Values we'll use to set the TZ environment variable. */
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
52 static char *tz_strings[] = {
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
53 (char *) 0, "TZ=GMT0", "TZ=JST-9",
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
54 "TZ=EST+3EDT+2,M10.1.0/00:00:00,M2.3.0/00:00:00"
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
55 };
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
56 #define N_STRINGS (sizeof (tz_strings) / sizeof (tz_strings[0]))
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
57
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
58 /* Fail if mktime fails to convert a date in the spring-forward gap.
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
59 Based on a problem report from Andreas Jaeger. */
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
60 static void
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
61 spring_forward_gap ()
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
62 {
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
63 /* glibc (up to about 1998-10-07) failed this test. */
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
64 struct tm tm;
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
65
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
66 /* Use the portable POSIX.1 specification "TZ=PST8PDT,M4.1.0,M10.5.0"
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
67 instead of "TZ=America/Vancouver" in order to detect the bug even
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
68 on systems that don't support the Olson extension, or don't have the
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
69 full zoneinfo tables installed. */
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
70 putenv ("TZ=PST8PDT,M4.1.0,M10.5.0");
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
71
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
72 tm.tm_year = 98;
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
73 tm.tm_mon = 3;
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
74 tm.tm_mday = 5;
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
75 tm.tm_hour = 2;
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
76 tm.tm_min = 0;
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
77 tm.tm_sec = 0;
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
78 tm.tm_isdst = -1;
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
79 if (mktime (&tm) == (time_t)-1)
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
80 exit (1);
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
81 }
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
82
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
83 static void
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
84 mktime_test1 (now)
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
85 time_t now;
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
86 {
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
87 struct tm *lt;
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
88 if ((lt = localtime (&now)) && mktime (lt) != now)
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
89 exit (1);
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
90 }
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
91
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
92 static void
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
93 mktime_test (now)
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
94 time_t now;
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
95 {
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
96 mktime_test1 (now);
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
97 mktime_test1 ((time_t) (time_t_max - now));
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
98 mktime_test1 ((time_t) (time_t_min + now));
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
99 }
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
100
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
101 static void
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
102 irix_6_4_bug ()
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
103 {
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
104 /* Based on code from Ariel Faigon. */
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
105 struct tm tm;
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
106 tm.tm_year = 96;
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
107 tm.tm_mon = 3;
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
108 tm.tm_mday = 0;
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
109 tm.tm_hour = 0;
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
110 tm.tm_min = 0;
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
111 tm.tm_sec = 0;
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
112 tm.tm_isdst = -1;
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
113 mktime (&tm);
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
114 if (tm.tm_mon != 2 || tm.tm_mday != 31)
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
115 exit (1);
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
116 }
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
117
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
118 static void
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
119 bigtime_test (j)
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
120 int j;
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
121 {
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
122 struct tm tm;
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
123 time_t now;
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
124 tm.tm_year = tm.tm_mon = tm.tm_mday = tm.tm_hour = tm.tm_min = tm.tm_sec = j;
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
125 now = mktime (&tm);
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
126 if (now != (time_t) -1)
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
127 {
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
128 struct tm *lt = localtime (&now);
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
129 if (! (lt
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
130 && lt->tm_year == tm.tm_year
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
131 && lt->tm_mon == tm.tm_mon
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
132 && lt->tm_mday == tm.tm_mday
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
133 && lt->tm_hour == tm.tm_hour
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
134 && lt->tm_min == tm.tm_min
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
135 && lt->tm_sec == tm.tm_sec
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
136 && lt->tm_yday == tm.tm_yday
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
137 && lt->tm_wday == tm.tm_wday
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
138 && ((lt->tm_isdst < 0 ? -1 : 0 < lt->tm_isdst)
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
139 == (tm.tm_isdst < 0 ? -1 : 0 < tm.tm_isdst))))
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
140 exit (1);
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
141 }
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
142 }
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
143
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
144 int
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
145 main ()
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
146 {
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
147 time_t t, delta;
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
148 int i, j;
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
149
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
150 /* This test makes some buggy mktime implementations loop.
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
151 Give up after 60 seconds; a mktime slower than that
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
152 isn't worth using anyway. */
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
153 alarm (60);
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
154
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
155 for (time_t_max = 1; 0 < time_t_max; time_t_max *= 2)
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
156 continue;
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
157 time_t_max--;
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
158 if ((time_t) -1 < 0)
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
159 for (time_t_min = -1; (time_t) (time_t_min * 2) < 0; time_t_min *= 2)
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
160 continue;
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
161 delta = time_t_max / 997; /* a suitable prime number */
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
162 for (i = 0; i < N_STRINGS; i++)
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
163 {
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
164 if (tz_strings[i])
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
165 putenv (tz_strings[i]);
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
166
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
167 for (t = 0; t <= time_t_max - delta; t += delta)
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
168 mktime_test (t);
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
169 mktime_test ((time_t) 1);
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
170 mktime_test ((time_t) (60 * 60));
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
171 mktime_test ((time_t) (60 * 60 * 24));
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
172
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
173 for (j = 1; 0 < j; j *= 2)
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
174 bigtime_test (j);
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
175 bigtime_test (j - 1);
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
176 }
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
177 irix_6_4_bug ();
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
178 spring_forward_gap ();
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
179 exit (0);
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
180 }]])],
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
181 [ac_cv_func_working_mktime=yes],
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
182 [ac_cv_func_working_mktime=no],
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
183 [ac_cv_func_working_mktime=no])])
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
184 if test $ac_cv_func_working_mktime = no; then
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
185 AC_LIBOBJ([mktime])
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
186 fi
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
187 ])# AC_FUNC_MKTIME
fc8667232bcc Ensure we use gnulib mktime rather than glibc's mktime, on hosts
Paul Eggert <eggert@cs.ucla.edu>
parents: 4107
diff changeset
188
4107
7c1a6b73f48e An autoconf macro for its associated module.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
189 AC_DEFUN([gl_FUNC_MKTIME],
7c1a6b73f48e An autoconf macro for its associated module.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
190 [
7c1a6b73f48e An autoconf macro for its associated module.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
191 AC_REQUIRE([AC_FUNC_MKTIME])
7c1a6b73f48e An autoconf macro for its associated module.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
192 if test $ac_cv_func_working_mktime = no; then
7c1a6b73f48e An autoconf macro for its associated module.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
193 AC_DEFINE(mktime, rpl_mktime,
7c1a6b73f48e An autoconf macro for its associated module.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
194 [Define to rpl_mktime if the replacement function should be used.])
7c1a6b73f48e An autoconf macro for its associated module.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
195 gl_PREREQ_MKTIME
7c1a6b73f48e An autoconf macro for its associated module.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
196 fi
7c1a6b73f48e An autoconf macro for its associated module.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
197 ])
7c1a6b73f48e An autoconf macro for its associated module.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
198
7c1a6b73f48e An autoconf macro for its associated module.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
199 # Prerequisites of lib/mktime.c.
4666
bb2816d0923f Remove K&R cruft.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4621
diff changeset
200 AC_DEFUN([gl_PREREQ_MKTIME], [:])