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
|
# mbsrtowcs.m4 serial 13
dnl Copyright (C) 2008-2019 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.
AC_DEFUN([gl_FUNC_MBSRTOWCS],
[
AC_REQUIRE([gl_WCHAR_H_DEFAULTS])
AC_REQUIRE([AC_TYPE_MBSTATE_T])
gl_MBSTATE_T_BROKEN
AC_CHECK_FUNCS_ONCE([mbsrtowcs])
if test $ac_cv_func_mbsrtowcs = no; then
HAVE_MBSRTOWCS=0
AC_CHECK_DECLS([mbsrtowcs],,, [[
/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before
<wchar.h>.
BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be
included before <wchar.h>. */
#include <stddef.h>
#include <stdio.h>
#include <time.h>
#include <wchar.h>
]])
if test $ac_cv_have_decl_mbsrtowcs = yes; then
dnl On Minix 3.1.8, the system's <wchar.h> declares mbsrtowcs() although
dnl it does not have the function. Avoid a collision with gnulib's
dnl replacement.
REPLACE_MBSRTOWCS=1
fi
else
if test $REPLACE_MBSTATE_T = 1; then
REPLACE_MBSRTOWCS=1
else
gl_MBSRTOWCS_WORKS
case "$gl_cv_func_mbsrtowcs_works" in
*yes) ;;
*) REPLACE_MBSRTOWCS=1 ;;
esac
fi
fi
])
dnl Test whether mbsrtowcs works.
dnl Result is gl_cv_func_mbsrtowcs_works.
AC_DEFUN([gl_MBSRTOWCS_WORKS],
[
AC_REQUIRE([AC_PROG_CC])
AC_REQUIRE([gt_LOCALE_FR])
AC_REQUIRE([gt_LOCALE_FR_UTF8])
AC_REQUIRE([gt_LOCALE_JA])
AC_REQUIRE([gt_LOCALE_ZH_CN])
AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
AC_CACHE_CHECK([whether mbsrtowcs works],
[gl_cv_func_mbsrtowcs_works],
[
dnl Initial guess, used when cross-compiling or when no suitable locale
dnl is present.
changequote(,)dnl
case "$host_os" in
# Guess no on HP-UX, Solaris, mingw.
hpux* | solaris* | mingw*) gl_cv_func_mbsrtowcs_works="guessing no" ;;
# Guess yes otherwise.
*) gl_cv_func_mbsrtowcs_works="guessing yes" ;;
esac
changequote([,])dnl
if test $LOCALE_FR != none || test $LOCALE_FR_UTF8 != none || test $LOCALE_JA != none || test $LOCALE_ZH_CN != none; then
AC_RUN_IFELSE(
[AC_LANG_SOURCE([[
#include <locale.h>
#include <string.h>
/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before
<wchar.h>.
BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be
included before <wchar.h>. */
#include <stddef.h>
#include <stdio.h>
#include <time.h>
#include <wchar.h>
int main ()
{
int result = 0;
/* Test whether the function supports a NULL destination argument.
This fails on native Windows. */
if (setlocale (LC_ALL, "$LOCALE_FR") != NULL)
{
const char input[] = "\337er";
const char *src = input;
mbstate_t state;
memset (&state, '\0', sizeof (mbstate_t));
if (mbsrtowcs (NULL, &src, 1, &state) != 3
|| src != input)
result |= 1;
}
/* Test whether the function works when started with a conversion state
in non-initial state. This fails on HP-UX 11.11 and Solaris 10. */
if (setlocale (LC_ALL, "$LOCALE_FR_UTF8") != NULL)
{
const char input[] = "B\303\274\303\237er";
mbstate_t state;
memset (&state, '\0', sizeof (mbstate_t));
if (mbrtowc (NULL, input + 1, 1, &state) == (size_t)(-2))
if (!mbsinit (&state))
{
const char *src = input + 2;
if (mbsrtowcs (NULL, &src, 10, &state) != 4)
result |= 2;
}
}
if (setlocale (LC_ALL, "$LOCALE_JA") != NULL)
{
const char input[] = "<\306\374\313\334\270\354>";
mbstate_t state;
memset (&state, '\0', sizeof (mbstate_t));
if (mbrtowc (NULL, input + 3, 1, &state) == (size_t)(-2))
if (!mbsinit (&state))
{
const char *src = input + 4;
if (mbsrtowcs (NULL, &src, 10, &state) != 3)
result |= 4;
}
}
if (setlocale (LC_ALL, "$LOCALE_ZH_CN") != NULL)
{
const char input[] = "B\250\271\201\060\211\070er";
mbstate_t state;
memset (&state, '\0', sizeof (mbstate_t));
if (mbrtowc (NULL, input + 1, 1, &state) == (size_t)(-2))
if (!mbsinit (&state))
{
const char *src = input + 2;
if (mbsrtowcs (NULL, &src, 10, &state) != 4)
result |= 8;
}
}
return result;
}]])],
[gl_cv_func_mbsrtowcs_works=yes],
[gl_cv_func_mbsrtowcs_works=no],
[:])
fi
])
])
# Prerequisites of lib/mbsrtowcs.c.
AC_DEFUN([gl_PREREQ_MBSRTOWCS], [
:
])
|
