1# locale-ja.m4 serial 3 (gettext-0.17)
2dnl Copyright (C) 2003, 2005-2007 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    macosx=
16changequote(,)dnl
17    case "$host_os" in
18      darwin[56]*) ;;
19      darwin*) macosx=yes;;
20    esac
21changequote([,])dnl
22    if test -n "$macosx"; then
23      # On Darwin 7 (MacOS X), the libc supports some locales in non-UTF-8
24      # encodings, but the kernel does not support them. The documentation
25      # says:
26      #   "... all code that calls BSD system routines should ensure
27      #    that the const *char parameters of these routines are in UTF-8
28      #    encoding. All BSD system functions expect their string
29      #    parameters to be in UTF-8 encoding and nothing else."
30      # See the comments in config.charset. Therefore we bypass the test.
31      gt_cv_locale_ja=none
32    else
33      AC_LANG_CONFTEST([AC_LANG_SOURCE([
34changequote(,)dnl
35#include <locale.h>
36#include <time.h>
37#if HAVE_LANGINFO_CODESET
38# include <langinfo.h>
39#endif
40#include <stdlib.h>
41#include <string.h>
42struct tm t;
43char buf[16];
44int main ()
45{
46  const char *p;
47  /* Check whether the given locale name is recognized by the system.  */
48  if (setlocale (LC_ALL, "") == NULL) return 1;
49  /* Check whether nl_langinfo(CODESET) is nonempty.
50     On MacOS X 10.3.5 (Darwin 7.5) in the fr_FR locale, nl_langinfo(CODESET)
51     is empty, and the behaviour of Tcl 8.4 in this locale is not useful.  */
52#if HAVE_LANGINFO_CODESET
53  if (nl_langinfo (CODESET) [0] == '\0') return 1;
54#endif
55#ifdef __CYGWIN__
56  /* On Cygwin, avoid locale names without encoding suffix, because the
57     locale_charset() function relies on the encoding suffix.  Note that
58     LC_ALL is set on the command line.  */
59  if (strchr (getenv ("LC_ALL"), '.') == NULL) return 1;
60#endif
61  /* Check whether in a month name, no byte in the range 0x80..0x9F occurs.
62     This excludes the UTF-8 encoding.  */
63  t.tm_year = 1975 - 1900; t.tm_mon = 2 - 1; t.tm_mday = 4;
64  if (strftime (buf, sizeof (buf), "%B", &t) < 2) return 1;
65  for (p = buf; *p != '\0'; p++)
66    if ((unsigned char) *p >= 0x80 && (unsigned char) *p < 0xa0)
67      return 1;
68  return 0;
69}
70changequote([,])dnl
71        ])])
72      if AC_TRY_EVAL([ac_link]) && test -s conftest$ac_exeext; then
73        # Setting LC_ALL is not enough. Need to set LC_TIME to empty, because
74        # otherwise on MacOS X 10.3.5 the LC_TIME=C from the beginning of the
75        # configure script would override the LC_ALL setting. Likewise for
76        # LC_CTYPE, which is also set at the beginning of the configure script.
77        # Test for the AIX locale name.
78        if (LC_ALL=ja_JP LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then
79          gt_cv_locale_ja=ja_JP
80        else
81          # Test for the locale name with explicit encoding suffix.
82          if (LC_ALL=ja_JP.EUC-JP LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then
83            gt_cv_locale_ja=ja_JP.EUC-JP
84          else
85            # Test for the HP-UX, OSF/1, NetBSD locale name.
86            if (LC_ALL=ja_JP.eucJP LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then
87              gt_cv_locale_ja=ja_JP.eucJP
88            else
89              # Test for the IRIX, FreeBSD locale name.
90              if (LC_ALL=ja_JP.EUC LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then
91                gt_cv_locale_ja=ja_JP.EUC
92              else
93                # Test for the Solaris 7 locale name.
94                if (LC_ALL=ja LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then
95                  gt_cv_locale_ja=ja
96                else
97                  # Special test for NetBSD 1.6.
98                  if test -f /usr/share/locale/ja_JP.eucJP/LC_CTYPE; then
99                    gt_cv_locale_ja=ja_JP.eucJP
100                  else
101                    # None found.
102                    gt_cv_locale_ja=none
103                  fi
104                fi
105              fi
106            fi
107          fi
108        fi
109      fi
110      rm -fr conftest*
111    fi
112  ])
113  LOCALE_JA=$gt_cv_locale_ja
114  AC_SUBST([LOCALE_JA])
115])
116