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Member "gnuastro-0.8/bootstrapped/m4/locale-zh.m4" (28 Dec 2018, 5550 Bytes) of package /linux/privat/gnuastro-0.8.tar.lz:


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    1 # locale-zh.m4 serial 14
    2 dnl Copyright (C) 2003, 2005-2018 Free Software Foundation, Inc.
    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   /* On BeOS and Haiku, locales are not implemented in libc.  Rather, libintl
   30      imitates locale dependent behaviour by looking at the environment
   31      variables, and all locales use the UTF-8 encoding.  */
   32 #if defined __BEOS__ || defined __HAIKU__
   33   return 1;
   34 #else
   35   /* Check whether the given locale name is recognized by the system.  */
   36 # if defined _WIN32 && !defined __CYGWIN__
   37   /* On native Windows, setlocale(category, "") looks at the system settings,
   38      not at the environment variables.  Also, when an encoding suffix such
   39      as ".65001" or ".54936" is specified, it succeeds but sets the LC_CTYPE
   40      category of the locale to "C".  */
   41   if (setlocale (LC_ALL, getenv ("LC_ALL")) == NULL
   42       || strcmp (setlocale (LC_CTYPE, NULL), "C") == 0)
   43     return 1;
   44 # else
   45   if (setlocale (LC_ALL, "") == NULL) return 1;
   46 # endif
   47   /* Check whether nl_langinfo(CODESET) is nonempty and not "ASCII" or "646".
   48      On Mac OS X 10.3.5 (Darwin 7.5) in the fr_FR locale, nl_langinfo(CODESET)
   49      is empty, and the behaviour of Tcl 8.4 in this locale is not useful.
   50      On OpenBSD 4.0, when an unsupported locale is specified, setlocale()
   51      succeeds but then nl_langinfo(CODESET) is "646". In this situation,
   52      some unit tests fail.
   53      On MirBSD 10, when an unsupported locale is specified, setlocale()
   54      succeeds but then nl_langinfo(CODESET) is "UTF-8".  */
   55 # if HAVE_LANGINFO_CODESET
   56   {
   57     const char *cs = nl_langinfo (CODESET);
   58     if (cs[0] == '\0' || strcmp (cs, "ASCII") == 0 || strcmp (cs, "646") == 0
   59         || strcmp (cs, "UTF-8") == 0)
   60       return 1;
   61   }
   62 # endif
   63 # ifdef __CYGWIN__
   64   /* On Cygwin, avoid locale names without encoding suffix, because the
   65      locale_charset() function relies on the encoding suffix.  Note that
   66      LC_ALL is set on the command line.  */
   67   if (strchr (getenv ("LC_ALL"), '.') == NULL) return 1;
   68 # endif
   69   /* Check whether in a month name, no byte in the range 0x80..0x9F occurs.
   70      This excludes the UTF-8 encoding (except on MirBSD).  */
   71   {
   72     const char *p;
   73     t.tm_year = 1975 - 1900; t.tm_mon = 2 - 1; t.tm_mday = 4;
   74     if (strftime (buf, sizeof (buf), "%B", &t) < 2) return 1;
   75     for (p = buf; *p != '\0'; p++)
   76       if ((unsigned char) *p >= 0x80 && (unsigned char) *p < 0xa0)
   77         return 1;
   78   }
   79   /* Check whether a typical GB18030 multibyte sequence is recognized as a
   80      single wide character.  This excludes the GB2312 and GBK encodings.  */
   81   if (mblen ("\203\062\332\066", 5) != 4)
   82     return 1;
   83   return 0;
   84 #endif
   85 }
   86 changequote([,])dnl
   87       ])])
   88     if AC_TRY_EVAL([ac_link]) && test -s conftest$ac_exeext; then
   89       case "$host_os" in
   90         # Handle native Windows specially, because there setlocale() interprets
   91         # "ar" as "Arabic" or "Arabic_Saudi Arabia.1256",
   92         # "fr" or "fra" as "French" or "French_France.1252",
   93         # "ge"(!) or "deu"(!) as "German" or "German_Germany.1252",
   94         # "ja" as "Japanese" or "Japanese_Japan.932",
   95         # and similar.
   96         mingw*)
   97           # Test for the hypothetical native Windows locale name.
   98           if (LC_ALL=Chinese_China.54936 LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then
   99             gt_cv_locale_zh_CN=Chinese_China.54936
  100           else
  101             # None found.
  102             gt_cv_locale_zh_CN=none
  103           fi
  104           ;;
  105         solaris2.8)
  106           # On Solaris 8, the locales zh_CN.GB18030, zh_CN.GBK, zh.GBK are
  107           # broken. One witness is the test case in gl_MBRTOWC_SANITYCHECK.
  108           # Another witness is that "LC_ALL=zh_CN.GB18030 bash -c true" dumps core.
  109           gt_cv_locale_zh_CN=none
  110           ;;
  111         *)
  112           # Setting LC_ALL is not enough. Need to set LC_TIME to empty, because
  113           # otherwise on Mac OS X 10.3.5 the LC_TIME=C from the beginning of the
  114           # configure script would override the LC_ALL setting. Likewise for
  115           # LC_CTYPE, which is also set at the beginning of the configure script.
  116           # Test for the locale name without encoding suffix.
  117           if (LC_ALL=zh_CN LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then
  118             gt_cv_locale_zh_CN=zh_CN
  119           else
  120             # Test for the locale name with explicit encoding suffix.
  121             if (LC_ALL=zh_CN.GB18030 LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then
  122               gt_cv_locale_zh_CN=zh_CN.GB18030
  123             else
  124               # None found.
  125               gt_cv_locale_zh_CN=none
  126             fi
  127           fi
  128           ;;
  129       esac
  130     else
  131       # If there was a link error, due to mblen(), the system is so old that
  132       # it certainly doesn't have a chinese locale.
  133       gt_cv_locale_zh_CN=none
  134     fi
  135     rm -fr conftest*
  136   ])
  137   LOCALE_ZH_CN=$gt_cv_locale_zh_CN
  138   AC_SUBST([LOCALE_ZH_CN])
  139 ])