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8690e634 | 1 | # locale-zh.m4 serial 12 |
4a626d0a | 2 | dnl Copyright (C) 2003, 2005-2015 Free Software Foundation, Inc. |
8690e634 JK |
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 | dnl From Bruno Haible. | |
8 | ||
9 | dnl Determine the name of a chinese locale with GB18030 encoding. | |
10 | AC_DEFUN([gt_LOCALE_ZH_CN], | |
11 | [ | |
12 | AC_REQUIRE([AC_CANONICAL_HOST]) | |
13 | AC_REQUIRE([AM_LANGINFO_CODESET]) | |
14 | AC_CACHE_CHECK([for a transitional chinese locale], [gt_cv_locale_zh_CN], [ | |
15 | AC_LANG_CONFTEST([AC_LANG_SOURCE([ | |
16 | changequote(,)dnl | |
17 | #include <locale.h> | |
18 | #include <stdlib.h> | |
19 | #include <time.h> | |
20 | #if HAVE_LANGINFO_CODESET | |
21 | # include <langinfo.h> | |
22 | #endif | |
23 | #include <stdlib.h> | |
24 | #include <string.h> | |
25 | struct tm t; | |
26 | char buf[16]; | |
27 | int main () | |
28 | { | |
29 | const char *p; | |
30 | /* Check whether the given locale name is recognized by the system. */ | |
31 | #if (defined _WIN32 || defined __WIN32__) && !defined __CYGWIN__ | |
32 | /* On native Windows, setlocale(category, "") looks at the system settings, | |
33 | not at the environment variables. Also, when an encoding suffix such | |
34 | as ".65001" or ".54936" is specified, it succeeds but sets the LC_CTYPE | |
35 | category of the locale to "C". */ | |
36 | if (setlocale (LC_ALL, getenv ("LC_ALL")) == NULL | |
37 | || strcmp (setlocale (LC_CTYPE, NULL), "C") == 0) | |
38 | return 1; | |
39 | #else | |
40 | if (setlocale (LC_ALL, "") == NULL) return 1; | |
41 | #endif | |
42 | /* Check whether nl_langinfo(CODESET) is nonempty and not "ASCII" or "646". | |
43 | On Mac OS X 10.3.5 (Darwin 7.5) in the fr_FR locale, nl_langinfo(CODESET) | |
44 | is empty, and the behaviour of Tcl 8.4 in this locale is not useful. | |
45 | On OpenBSD 4.0, when an unsupported locale is specified, setlocale() | |
46 | succeeds but then nl_langinfo(CODESET) is "646". In this situation, | |
47 | some unit tests fail. | |
48 | On MirBSD 10, when an unsupported locale is specified, setlocale() | |
49 | succeeds but then nl_langinfo(CODESET) is "UTF-8". */ | |
50 | #if HAVE_LANGINFO_CODESET | |
51 | { | |
52 | const char *cs = nl_langinfo (CODESET); | |
53 | if (cs[0] == '\0' || strcmp (cs, "ASCII") == 0 || strcmp (cs, "646") == 0 | |
54 | || strcmp (cs, "UTF-8") == 0) | |
55 | return 1; | |
56 | } | |
57 | #endif | |
58 | #ifdef __CYGWIN__ | |
59 | /* On Cygwin, avoid locale names without encoding suffix, because the | |
60 | locale_charset() function relies on the encoding suffix. Note that | |
61 | LC_ALL is set on the command line. */ | |
62 | if (strchr (getenv ("LC_ALL"), '.') == NULL) return 1; | |
63 | #endif | |
64 | /* Check whether in a month name, no byte in the range 0x80..0x9F occurs. | |
65 | This excludes the UTF-8 encoding (except on MirBSD). */ | |
66 | t.tm_year = 1975 - 1900; t.tm_mon = 2 - 1; t.tm_mday = 4; | |
67 | if (strftime (buf, sizeof (buf), "%B", &t) < 2) return 1; | |
68 | for (p = buf; *p != '\0'; p++) | |
69 | if ((unsigned char) *p >= 0x80 && (unsigned char) *p < 0xa0) | |
70 | return 1; | |
71 | /* Check whether a typical GB18030 multibyte sequence is recognized as a | |
72 | single wide character. This excludes the GB2312 and GBK encodings. */ | |
73 | if (mblen ("\203\062\332\066", 5) != 4) | |
74 | return 1; | |
75 | return 0; | |
76 | } | |
77 | changequote([,])dnl | |
78 | ])]) | |
79 | if AC_TRY_EVAL([ac_link]) && test -s conftest$ac_exeext; then | |
80 | case "$host_os" in | |
81 | # Handle native Windows specially, because there setlocale() interprets | |
82 | # "ar" as "Arabic" or "Arabic_Saudi Arabia.1256", | |
83 | # "fr" or "fra" as "French" or "French_France.1252", | |
84 | # "ge"(!) or "deu"(!) as "German" or "German_Germany.1252", | |
85 | # "ja" as "Japanese" or "Japanese_Japan.932", | |
86 | # and similar. | |
87 | mingw*) | |
88 | # Test for the hypothetical native Windows locale name. | |
89 | if (LC_ALL=Chinese_China.54936 LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then | |
90 | gt_cv_locale_zh_CN=Chinese_China.54936 | |
91 | else | |
92 | # None found. | |
93 | gt_cv_locale_zh_CN=none | |
94 | fi | |
95 | ;; | |
96 | solaris2.8) | |
97 | # On Solaris 8, the locales zh_CN.GB18030, zh_CN.GBK, zh.GBK are | |
98 | # broken. One witness is the test case in gl_MBRTOWC_SANITYCHECK. | |
99 | # Another witness is that "LC_ALL=zh_CN.GB18030 bash -c true" dumps core. | |
100 | gt_cv_locale_zh_CN=none | |
101 | ;; | |
102 | *) | |
103 | # Setting LC_ALL is not enough. Need to set LC_TIME to empty, because | |
104 | # otherwise on Mac OS X 10.3.5 the LC_TIME=C from the beginning of the | |
105 | # configure script would override the LC_ALL setting. Likewise for | |
106 | # LC_CTYPE, which is also set at the beginning of the configure script. | |
107 | # Test for the locale name without encoding suffix. | |
108 | if (LC_ALL=zh_CN LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then | |
109 | gt_cv_locale_zh_CN=zh_CN | |
110 | else | |
111 | # Test for the locale name with explicit encoding suffix. | |
112 | if (LC_ALL=zh_CN.GB18030 LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then | |
113 | gt_cv_locale_zh_CN=zh_CN.GB18030 | |
114 | else | |
115 | # None found. | |
116 | gt_cv_locale_zh_CN=none | |
117 | fi | |
118 | fi | |
119 | ;; | |
120 | esac | |
121 | else | |
122 | # If there was a link error, due to mblen(), the system is so old that | |
123 | # it certainly doesn't have a chinese locale. | |
124 | gt_cv_locale_zh_CN=none | |
125 | fi | |
126 | rm -fr conftest* | |
127 | ]) | |
128 | LOCALE_ZH_CN=$gt_cv_locale_zh_CN | |
129 | AC_SUBST([LOCALE_ZH_CN]) | |
130 | ]) |