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
|
# mbsnrtowcs.m4 serial 9
dnl Copyright (C) 2008, 2010-2023 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_MBSNRTOWCS],
[
AC_REQUIRE([gl_WCHAR_H_DEFAULTS])
dnl Persuade glibc <wchar.h> to declare mbsnrtowcs().
AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
AC_REQUIRE([AC_TYPE_MBSTATE_T])
gl_MBSTATE_T_BROKEN
gl_CHECK_FUNCS_ANDROID([mbsnrtowcs], [[#include <wchar.h>]])
if test $ac_cv_func_mbsnrtowcs = no; then
HAVE_MBSNRTOWCS=0
case "$gl_cv_onwards_func_mbsnrtowcs" in
future*) REPLACE_MBSNRTOWCS=1 ;;
esac
else
if test $REPLACE_MBSTATE_T = 1; then
REPLACE_MBSNRTOWCS=1
else
gl_MBSNRTOWCS_WORKS_IN_TRADITIONAL_LOCALE
case "$gl_cv_func_mbsnrtowcs_works_in_traditional_locale" in
*yes) ;;
*) REPLACE_MBSNRTOWCS=1 ;;
esac
if test $REPLACE_MBSNRTOWCS = 0; then
gl_MBRTOWC_C_LOCALE
case "$gl_cv_func_mbrtowc_C_locale_sans_EILSEQ" in
*yes) ;;
*) REPLACE_MBSNRTOWCS=1 ;;
esac
fi
fi
fi
])
# Prerequisites of lib/mbsnrtowcs.c.
AC_DEFUN([gl_PREREQ_MBSNRTOWCS], [
:
])
dnl Test whether mbsnrtowcs works in an ISO-8859-1 locale.
dnl Result is gl_cv_func_mbsnrtowcs_works_in_traditional_locale.
AC_DEFUN([gl_MBSNRTOWCS_WORKS_IN_TRADITIONAL_LOCALE],
[
AC_REQUIRE([AC_PROG_CC])
AC_REQUIRE([gt_LOCALE_FR])
AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
AC_CACHE_CHECK([whether mbsnrtowcs works in a traditional locale],
[gl_cv_func_mbsnrtowcs_works_in_traditional_locale],
[
dnl Initial guess, used when cross-compiling or when no suitable locale
dnl is present.
changequote(,)dnl
case "$host_os" in
# Guess no on Solaris.
solaris*) gl_cv_func_mbsnrtowcs_works_in_traditional_locale="guessing no" ;;
# Guess yes otherwise.
*) gl_cv_func_mbsnrtowcs_works_in_traditional_locale="guessing yes" ;;
esac
changequote([,])dnl
if test $LOCALE_FR != none; then
AC_RUN_IFELSE(
[AC_LANG_SOURCE([[
#include <locale.h>
#include <stdlib.h>
#include <string.h>
#include <wchar.h>
int main ()
{
/* This fails on Solaris 11.4:
mbsnrtowcs stores a wrong wide character: 0xDF instead of btowc (0xDF). */
if (setlocale (LC_ALL, "$LOCALE_FR") != NULL)
{
/* Locale encoding is ISO-8859-1 or ISO-8859-15. */
char input[] = "B\374\337er"; /* "Büßer" */
mbstate_t state;
mbstate_t temp_state;
wchar_t wc;
size_t ret;
const char *src;
#define BUFSIZE 10
wchar_t buf[BUFSIZE];
{
size_t i;
for (i = 0; i < BUFSIZE; i++)
buf[i] = (wchar_t) 0xBADFACE;
}
memset (&state, '\0', sizeof (mbstate_t));
wc = (wchar_t) 0xBADFACE;
ret = mbrtowc (&wc, input, 1, &state);
if (!(ret == 1 && wc == 'B' && mbsinit (&state)))
return 1;
input[0] = '\0';
wc = (wchar_t) 0xBADFACE;
ret = mbrtowc (&wc, input + 1, 1, &state);
if (!(ret == 1 && wctob (wc) == (unsigned char) '\374' && mbsinit (&state)))
return 2;
input[1] = '\0';
src = input + 2;
temp_state = state;
ret = mbsnrtowcs (NULL, &src, 4, 1, &temp_state);
if (!(ret == 3 && src == input + 2 && mbsinit (&state)))
return 3;
src = input + 2;
ret = mbsnrtowcs (buf, &src, 4, 1, &state);
if (!(ret == 1))
return 4;
if (!(src == input + 3))
return 5;
if (!(buf[0] == btowc ((unsigned char) '\337')))
return 6;
}
return 0;
}]])],
[gl_cv_func_mbsnrtowcs_works_in_traditional_locale=yes],
[gl_cv_func_mbsnrtowcs_works_in_traditional_locale=no],
[:])
fi
])
])
|
