3 dnl Copyright (C) 2003, 2005-2024 Free Software Foundation, Inc.
4 dnl This file is free software; the Free Software Foundation
5 dnl gives unlimited permission to copy and/or distribute it,
6 dnl with or without modifications, as long as this notice is preserved.
10 dnl Determine the name of a japanese locale with EUC-JP encoding.
11 AC_DEFUN_ONCE([gt_LOCALE_JA],
13 AC_REQUIRE([AC_CANONICAL_HOST])
14 AC_REQUIRE([AM_LANGINFO_CODESET])
15 AC_CACHE_CHECK([for a traditional japanese locale], [gt_cv_locale_ja], [
16 AC_LANG_CONFTEST([AC_LANG_SOURCE([[
19 #if HAVE_LANGINFO_CODESET
20 # include <langinfo.h>
28 /* On BeOS and Haiku, locales are not implemented in libc. Rather, libintl
29 imitates locale dependent behaviour by looking at the environment
30 variables, and all locales use the UTF-8 encoding. */
31 #if defined __BEOS__ || defined __HAIKU__
34 /* Check whether the given locale name is recognized by the system. */
35 # if defined _WIN32 && !defined __CYGWIN__
36 /* On native Windows, setlocale(category, "") looks at the system settings,
37 not at the environment variables. Also, when an encoding suffix such
38 as ".65001" or ".54936" is specified, it succeeds but sets the LC_CTYPE
39 category of the locale to "C". */
40 if (setlocale (LC_ALL, getenv ("LC_ALL")) == NULL
41 || strcmp (setlocale (LC_CTYPE, NULL), "C") == 0)
44 if (setlocale (LC_ALL, "") == NULL) return 1;
46 /* Check whether nl_langinfo(CODESET) is nonempty and not "ASCII" or "646".
47 On Mac OS X 10.3.5 (Darwin 7.5) in the fr_FR locale, nl_langinfo(CODESET)
48 is empty, and the behaviour of Tcl 8.4 in this locale is not useful.
49 On OpenBSD 4.0, when an unsupported locale is specified, setlocale()
50 succeeds but then nl_langinfo(CODESET) is "646". In this situation,
52 On MirBSD 10, when an unsupported locale is specified, setlocale()
53 succeeds but then nl_langinfo(CODESET) is "UTF-8". */
54 # if HAVE_LANGINFO_CODESET
56 const char *cs = nl_langinfo (CODESET);
57 if (cs[0] == '\0' || strcmp (cs, "ASCII") == 0 || strcmp (cs, "646") == 0
58 || strcmp (cs, "UTF-8") == 0)
63 /* On Cygwin, avoid locale names without encoding suffix, because the
64 locale_charset() function relies on the encoding suffix. Note that
65 LC_ALL is set on the command line. */
66 if (strchr (getenv ("LC_ALL"), '.') == NULL) return 1;
68 /* Check whether MB_CUR_MAX is > 1. This excludes the dysfunctional locales
72 /* Check whether in a month name, no byte in the range 0x80..0x9F occurs.
73 This excludes the UTF-8 encoding (except on MirBSD). */
76 t.tm_year = 1975 - 1900; t.tm_mon = 2 - 1; t.tm_mday = 4;
77 if (strftime (buf, sizeof (buf), "%B", &t) < 2) return 1;
78 for (p = buf; *p != '\0'; p++)
79 if ((unsigned char) *p >= 0x80 && (unsigned char) *p < 0xa0)
86 if AC_TRY_EVAL([ac_link]) && test -s conftest$ac_exeext; then
88 # Handle native Windows specially, because there setlocale() interprets
89 # "ar" as "Arabic" or "Arabic_Saudi Arabia.1256",
90 # "fr" or "fra" as "French" or "French_France.1252",
91 # "ge"(!) or "deu"(!) as "German" or "German_Germany.1252",
92 # "ja" as "Japanese" or "Japanese_Japan.932",
95 # Note that on native Windows, the Japanese locale is
96 # Japanese_Japan.932, and CP932 is very different from EUC-JP, so we
101 # Setting LC_ALL is not enough. Need to set LC_TIME to empty, because
102 # otherwise on Mac OS X 10.3.5 the LC_TIME=C from the beginning of the
103 # configure script would override the LC_ALL setting. Likewise for
104 # LC_CTYPE, which is also set at the beginning of the configure script.
105 # Test for the AIX locale name.
106 if (LC_ALL=ja_JP LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then
107 gt_cv_locale_ja=ja_JP
109 # Test for the locale name with explicit encoding suffix.
110 if (LC_ALL=ja_JP.EUC-JP LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then
111 gt_cv_locale_ja=ja_JP.EUC-JP
113 # Test for the HP-UX, OSF/1, NetBSD locale name.
114 if (LC_ALL=ja_JP.eucJP LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then
115 gt_cv_locale_ja=ja_JP.eucJP
117 # Test for the IRIX, FreeBSD locale name.
118 if (LC_ALL=ja_JP.EUC LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then
119 gt_cv_locale_ja=ja_JP.EUC
121 # Test for the Solaris 10 locale name.
122 if (LC_ALL=ja LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then
125 # Special test for NetBSD 1.6.
126 if test -f /usr/share/locale/ja_JP.eucJP/LC_CTYPE; then
127 gt_cv_locale_ja=ja_JP.eucJP
142 LOCALE_JA=$gt_cv_locale_ja
143 case $LOCALE_JA in #(
144 '' | *[[[:space:]\"\$\'*@<:@]]*)
145 dnl This locale name might cause trouble with sh or make.
146 AC_MSG_WARN([invalid locale "$LOCALE_JA"; assuming "none"])
149 AC_SUBST([LOCALE_JA])