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053cfcdd VS |
1 | # wcrtomb.m4 serial 11 |
2 | dnl Copyright (C) 2008-2013 Free Software Foundation, Inc. | |
15c69261 YB |
3 | dnl This file is free software; the Free Software Foundation |
4 | dnl gives unlimited permission to copy and/or distribute it, | |
5 | dnl with or without modifications, as long as this notice is preserved. | |
6 | ||
7 | AC_DEFUN([gl_FUNC_WCRTOMB], | |
8 | [ | |
9 | AC_REQUIRE([gl_WCHAR_H_DEFAULTS]) | |
10 | ||
11 | AC_REQUIRE([AC_TYPE_MBSTATE_T]) | |
12 | gl_MBSTATE_T_BROKEN | |
13 | ||
14 | AC_CHECK_FUNCS_ONCE([wcrtomb]) | |
15 | if test $ac_cv_func_wcrtomb = no; then | |
16 | HAVE_WCRTOMB=0 | |
053cfcdd VS |
17 | AC_CHECK_DECLS([wcrtomb],,, [[ |
18 | /* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before | |
19 | <wchar.h>. | |
20 | BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be | |
21 | included before <wchar.h>. */ | |
22 | #include <stddef.h> | |
23 | #include <stdio.h> | |
24 | #include <time.h> | |
25 | #include <wchar.h> | |
26 | ]]) | |
27 | if test $ac_cv_have_decl_wcrtomb = yes; then | |
28 | dnl On Minix 3.1.8, the system's <wchar.h> declares wcrtomb() although | |
29 | dnl it does not have the function. Avoid a collision with gnulib's | |
30 | dnl replacement. | |
31 | REPLACE_WCRTOMB=1 | |
32 | fi | |
15c69261 YB |
33 | else |
34 | if test $REPLACE_MBSTATE_T = 1; then | |
35 | REPLACE_WCRTOMB=1 | |
36 | else | |
37 | dnl On AIX 4.3, OSF/1 5.1 and Solaris 10, wcrtomb (NULL, 0, NULL) sometimes | |
38 | dnl returns 0 instead of 1. | |
39 | AC_REQUIRE([AC_PROG_CC]) | |
40 | AC_REQUIRE([gt_LOCALE_FR]) | |
41 | AC_REQUIRE([gt_LOCALE_FR_UTF8]) | |
42 | AC_REQUIRE([gt_LOCALE_JA]) | |
43 | AC_REQUIRE([gt_LOCALE_ZH_CN]) | |
44 | AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles | |
45 | AC_CACHE_CHECK([whether wcrtomb return value is correct], | |
46 | [gl_cv_func_wcrtomb_retval], | |
47 | [ | |
48 | dnl Initial guess, used when cross-compiling or when no suitable locale | |
49 | dnl is present. | |
50 | changequote(,)dnl | |
51 | case "$host_os" in | |
52 | # Guess no on AIX 4, OSF/1 and Solaris. | |
53 | aix4* | osf* | solaris*) gl_cv_func_wcrtomb_retval="guessing no" ;; | |
54 | # Guess yes otherwise. | |
55 | *) gl_cv_func_wcrtomb_retval="guessing yes" ;; | |
56 | esac | |
57 | changequote([,])dnl | |
58 | if test $LOCALE_FR != none || test $LOCALE_FR_UTF8 != none || test $LOCALE_JA != none || test $LOCALE_ZH_CN != none; then | |
59 | AC_RUN_IFELSE( | |
60 | [AC_LANG_SOURCE([[ | |
61 | #include <locale.h> | |
15c69261 | 62 | #include <string.h> |
053cfcdd VS |
63 | /* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before |
64 | <wchar.h>. | |
65 | BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be | |
66 | included before <wchar.h>. */ | |
67 | #include <stddef.h> | |
68 | #include <stdio.h> | |
69 | #include <time.h> | |
15c69261 YB |
70 | #include <wchar.h> |
71 | int main () | |
72 | { | |
053cfcdd | 73 | int result = 0; |
15c69261 YB |
74 | if (setlocale (LC_ALL, "$LOCALE_FR") != NULL) |
75 | { | |
76 | if (wcrtomb (NULL, 0, NULL) != 1) | |
053cfcdd | 77 | result |= 1; |
15c69261 YB |
78 | } |
79 | if (setlocale (LC_ALL, "$LOCALE_FR_UTF8") != NULL) | |
80 | { | |
81 | if (wcrtomb (NULL, 0, NULL) != 1) | |
053cfcdd | 82 | result |= 2; |
15c69261 YB |
83 | } |
84 | if (setlocale (LC_ALL, "$LOCALE_JA") != NULL) | |
85 | { | |
86 | if (wcrtomb (NULL, 0, NULL) != 1) | |
053cfcdd | 87 | result |= 4; |
15c69261 YB |
88 | } |
89 | if (setlocale (LC_ALL, "$LOCALE_ZH_CN") != NULL) | |
90 | { | |
91 | if (wcrtomb (NULL, 0, NULL) != 1) | |
053cfcdd | 92 | result |= 8; |
15c69261 | 93 | } |
053cfcdd | 94 | return result; |
15c69261 YB |
95 | }]])], |
96 | [gl_cv_func_wcrtomb_retval=yes], | |
97 | [gl_cv_func_wcrtomb_retval=no], | |
98 | [:]) | |
99 | fi | |
100 | ]) | |
101 | case "$gl_cv_func_wcrtomb_retval" in | |
102 | *yes) ;; | |
103 | *) REPLACE_WCRTOMB=1 ;; | |
104 | esac | |
105 | fi | |
106 | fi | |
15c69261 YB |
107 | ]) |
108 | ||
109 | # Prerequisites of lib/wcrtomb.c. | |
110 | AC_DEFUN([gl_PREREQ_WCRTOMB], [ | |
111 | : | |
112 | ]) |