1# locale-ja.m4 serial 7
2dnl Copyright (C) 2003, 2005-2009 Free Software Foundation, Inc.
3dnl This file is free software; the Free Software Foundation
4dnl gives unlimited permission to copy and/or distribute it,
5dnl with or without modifications, as long as this notice is preserved.
6
7dnl From Bruno Haible.
8
9dnl Determine the name of a japanese locale with EUC-JP encoding.
10AC_DEFUN([gt_LOCALE_JA],
11[
12  AC_REQUIRE([AC_CANONICAL_HOST])
13  AC_REQUIRE([AM_LANGINFO_CODESET])
14  AC_CACHE_CHECK([for a traditional japanese locale], [gt_cv_locale_ja], [
15    AC_LANG_CONFTEST([AC_LANG_SOURCE([
16changequote(,)dnl
17#include <locale.h>
18#include <time.h>
19#if HAVE_LANGINFO_CODESET
20# include <langinfo.h>
21#endif
22#include <stdlib.h>
23#include <string.h>
24struct tm t;
25char buf[16];
26int main ()
27{
28  const char *p;
29  /* Check whether the given locale name is recognized by the system.  */
30  if (setlocale (LC_ALL, "") == NULL) return 1;
31  /* Check whether nl_langinfo(CODESET) is nonempty and not "ASCII" or "646".
32     On MacOS X 10.3.5 (Darwin 7.5) in the fr_FR locale, nl_langinfo(CODESET)
33     is empty, and the behaviour of Tcl 8.4 in this locale is not useful.
34     On OpenBSD 4.0, when an unsupported locale is specified, setlocale()
35     succeeds but then nl_langinfo(CODESET) is "646". In this situation,
36     some unit tests fail.  */
37#if HAVE_LANGINFO_CODESET
38  {
39    const char *cs = nl_langinfo (CODESET);
40    if (cs[0] == '\0' || strcmp (cs, "ASCII") == 0 || strcmp (cs, "646") == 0)
41      return 1;
42  }
43#endif
44#ifdef __CYGWIN__
45  /* On Cygwin, avoid locale names without encoding suffix, because the
46     locale_charset() function relies on the encoding suffix.  Note that
47     LC_ALL is set on the command line.  */
48  if (strchr (getenv ("LC_ALL"), '.') == NULL) return 1;
49#endif
50  /* Check whether MB_CUR_MAX is > 1.  This excludes the dysfunctional locales
51     on Cygwin 1.5.x.  */
52  if (MB_CUR_MAX == 1)
53    return 1;
54  /* Check whether in a month name, no byte in the range 0x80..0x9F occurs.
55     This excludes the UTF-8 encoding.  */
56  t.tm_year = 1975 - 1900; t.tm_mon = 2 - 1; t.tm_mday = 4;
57  if (strftime (buf, sizeof (buf), "%B", &t) < 2) return 1;
58  for (p = buf; *p != '\0'; p++)
59    if ((unsigned char) *p >= 0x80 && (unsigned char) *p < 0xa0)
60      return 1;
61  return 0;
62}
63changequote([,])dnl
64      ])])
65    if AC_TRY_EVAL([ac_link]) && test -s conftest$ac_exeext; then
66      # Setting LC_ALL is not enough. Need to set LC_TIME to empty, because
67      # otherwise on MacOS X 10.3.5 the LC_TIME=C from the beginning of the
68      # configure script would override the LC_ALL setting. Likewise for
69      # LC_CTYPE, which is also set at the beginning of the configure script.
70      # Test for the AIX locale name.
71      if (LC_ALL=ja_JP LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then
72        gt_cv_locale_ja=ja_JP
73      else
74        # Test for the locale name with explicit encoding suffix.
75        if (LC_ALL=ja_JP.EUC-JP LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then
76          gt_cv_locale_ja=ja_JP.EUC-JP
77        else
78          # Test for the HP-UX, OSF/1, NetBSD locale name.
79          if (LC_ALL=ja_JP.eucJP LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then
80            gt_cv_locale_ja=ja_JP.eucJP
81          else
82            # Test for the IRIX, FreeBSD locale name.
83            if (LC_ALL=ja_JP.EUC LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then
84              gt_cv_locale_ja=ja_JP.EUC
85            else
86              # Test for the Solaris 7 locale name.
87              if (LC_ALL=ja LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then
88                gt_cv_locale_ja=ja
89              else
90                # Special test for NetBSD 1.6.
91                if test -f /usr/share/locale/ja_JP.eucJP/LC_CTYPE; then
92                  gt_cv_locale_ja=ja_JP.eucJP
93                else
94                  # None found.
95                  gt_cv_locale_ja=none
96                fi
97              fi
98            fi
99          fi
100        fi
101      fi
102    fi
103    rm -fr conftest*
104  ])
105  LOCALE_JA=$gt_cv_locale_ja
106  AC_SUBST([LOCALE_JA])
107])
108