1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
|
#serial 15
dnl This macro is intended to be used solely in this file.
dnl These are the prerequisite macros for GNU's strftime.c replacement.
AC_DEFUN(_jm_STRFTIME_PREREQS,
[
dnl strftime.c uses localtime_r and the underyling system strftime
dnl if they exist.
AC_CHECK_FUNCS(localtime_r strftime)
AC_CHECK_HEADERS(limits.h)
AC_CHECK_FUNCS(bcopy tzset mempcpy memcpy memset)
# This defines (or not) HAVE_TZNAME and HAVE_TM_ZONE.
AC_STRUCT_TIMEZONE
AC_CHECK_FUNCS(mblen mbrlen)
AC_CHECK_MEMBER([struct tm.tm_gmtoff],
[AC_DEFINE(HAVE_TM_GMTOFF, 1,
[Define if struct tm has the tm_gmtoff member.])],
,
[#include <time.h>])
])
dnl Determine if the strftime function has all the features of the GNU one.
dnl
dnl From Jim Meyering.
dnl
AC_DEFUN(jm_FUNC_GNU_STRFTIME,
[AC_REQUIRE([AC_HEADER_TIME])dnl
_jm_STRFTIME_PREREQS
AC_REQUIRE([AC_C_CONST])dnl
AC_REQUIRE([AC_HEADER_STDC])dnl
AC_CHECK_HEADERS(sys/time.h)
AC_CACHE_CHECK([for working GNU strftime], jm_cv_func_working_gnu_strftime,
[AC_TRY_RUN(
[ /* Ulrich Drepper provided parts of the test program. */
#if STDC_HEADERS
# include <stdlib.h>
#endif
#if TIME_WITH_SYS_TIME
# include <sys/time.h>
# include <time.h>
#else
# if HAVE_SYS_TIME_H
# include <sys/time.h>
# else
# include <time.h>
# endif
#endif
static int
compare (const char *fmt, const struct tm *tm, const char *expected)
{
char buf[99];
strftime (buf, 99, fmt, tm);
if (strcmp (buf, expected))
{
#ifdef SHOW_FAILURES
printf ("fmt: \"%s\", expected \"%s\", got \"%s\"\n",
fmt, expected, buf);
#endif
return 1;
}
return 0;
}
int
main ()
{
int n_fail = 0;
struct tm *tm;
time_t t = 738367; /* Fri Jan 9 13:06:07 1970 */
tm = gmtime (&t);
/* Undefine this in case the configure-time putenv test has defined it
to something else. The use we make of this function here doesn't
require the added functionality of the replacement one. */
#undef putenv
/* This is necessary to make strftime give consistent zone strings and
e.g., seconds since the epoch (%s). */
putenv ("TZ=GMT0");
#undef CMP
#define CMP(Fmt, Expected) n_fail += compare ((Fmt), tm, (Expected))
CMP ("%-m", "1"); /* GNU */
CMP ("%A", "Friday");
CMP ("%^A", "FRIDAY"); /* The ^ is a GNU extension. */
CMP ("%B", "January");
CMP ("%^B", "JANUARY");
CMP ("%C", "19"); /* POSIX.2 */
CMP ("%D", "01/09/70"); /* POSIX.2 */
CMP ("%F", "1970-01-09");
CMP ("%G", "1970"); /* GNU */
CMP ("%H", "13");
CMP ("%I", "01");
CMP ("%M", "06");
CMP ("%M", "06");
CMP ("%R", "13:06"); /* POSIX.2 */
CMP ("%S", "07");
CMP ("%T", "13:06:07"); /* POSIX.2 */
CMP ("%U", "01");
CMP ("%V", "02");
CMP ("%W", "01");
CMP ("%X", "13:06:07");
CMP ("%Y", "1970");
CMP ("%Z", "GMT");
CMP ("%_m", " 1"); /* GNU */
CMP ("%a", "Fri");
CMP ("%^a", "FRI");
CMP ("%b", "Jan");
CMP ("%^b", "JAN");
CMP ("%c", "Fri Jan 9 13:06:07 1970");
CMP ("%^c", "FRI JAN 9 13:06:07 1970");
CMP ("%d", "09");
CMP ("%e", " 9"); /* POSIX.2 */
CMP ("%g", "70"); /* GNU */
CMP ("%h", "Jan"); /* POSIX.2 */
CMP ("%^h", "JAN");
CMP ("%j", "009");
CMP ("%k", "13"); /* GNU */
CMP ("%l", " 1"); /* GNU */
CMP ("%m", "01");
CMP ("%n", "\n"); /* POSIX.2 */
CMP ("%p", "PM");
CMP ("%r", "01:06:07 PM"); /* POSIX.2 */
CMP ("%s", "738367"); /* GNU */
CMP ("%t", "\t"); /* POSIX.2 */
CMP ("%u", "5"); /* POSIX.2 */
CMP ("%w", "5");
CMP ("%x", "01/09/70");
CMP ("%y", "70");
CMP ("%z", "+0000"); /* GNU */
exit (n_fail ? 1 : 0);
}],
jm_cv_func_working_gnu_strftime=yes,
jm_cv_func_working_gnu_strftime=no,
dnl When crosscompiling, assume strftime is missing or broken.
jm_cv_func_working_gnu_strftime=no)
])
if test $jm_cv_func_working_gnu_strftime = no; then
AC_LIBOBJ(strftime)
AC_DEFINE_UNQUOTED(strftime, gnu_strftime,
[Define to gnu_strftime if the replacement function should be used.])
fi
])
AC_DEFUN(jm_FUNC_STRFTIME,
[
_jm_STRFTIME_PREREQS
AC_REPLACE_FUNCS(strftime)
])
|
