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-rw-r--r--gnulib-m4/locale-zh.m492
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diff --git a/gnulib-m4/locale-zh.m4 b/gnulib-m4/locale-zh.m4
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+# locale-zh.m4 serial 6
+dnl Copyright (C) 2003, 2005-2009 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+dnl From Bruno Haible.
+
+dnl Determine the name of a chinese locale with GB18030 encoding.
+AC_DEFUN([gt_LOCALE_ZH_CN],
+[
+ AC_REQUIRE([AC_CANONICAL_HOST])
+ AC_REQUIRE([AM_LANGINFO_CODESET])
+ AC_CACHE_CHECK([for a transitional chinese locale], [gt_cv_locale_zh_CN], [
+ AC_LANG_CONFTEST([AC_LANG_SOURCE([
+changequote(,)dnl
+#include <locale.h>
+#include <stdlib.h>
+#include <time.h>
+#if HAVE_LANGINFO_CODESET
+# include <langinfo.h>
+#endif
+#include <stdlib.h>
+#include <string.h>
+struct tm t;
+char buf[16];
+int main ()
+{
+ const char *p;
+ /* Check whether the given locale name is recognized by the system. */
+ if (setlocale (LC_ALL, "") == NULL) return 1;
+ /* Check whether nl_langinfo(CODESET) is nonempty and not "ASCII" or "646".
+ On MacOS X 10.3.5 (Darwin 7.5) in the fr_FR locale, nl_langinfo(CODESET)
+ is empty, and the behaviour of Tcl 8.4 in this locale is not useful.
+ On OpenBSD 4.0, when an unsupported locale is specified, setlocale()
+ succeeds but then nl_langinfo(CODESET) is "646". In this situation,
+ some unit tests fail. */
+#if HAVE_LANGINFO_CODESET
+ {
+ const char *cs = nl_langinfo (CODESET);
+ if (cs[0] == '\0' || strcmp (cs, "ASCII") == 0 || strcmp (cs, "646") == 0)
+ return 1;
+ }
+#endif
+#ifdef __CYGWIN__
+ /* On Cygwin, avoid locale names without encoding suffix, because the
+ locale_charset() function relies on the encoding suffix. Note that
+ LC_ALL is set on the command line. */
+ if (strchr (getenv ("LC_ALL"), '.') == NULL) return 1;
+#endif
+ /* Check whether in a month name, no byte in the range 0x80..0x9F occurs.
+ This excludes the UTF-8 encoding. */
+ t.tm_year = 1975 - 1900; t.tm_mon = 2 - 1; t.tm_mday = 4;
+ if (strftime (buf, sizeof (buf), "%B", &t) < 2) return 1;
+ for (p = buf; *p != '\0'; p++)
+ if ((unsigned char) *p >= 0x80 && (unsigned char) *p < 0xa0)
+ return 1;
+ /* Check whether a typical GB18030 multibyte sequence is recognized as a
+ single wide character. This excludes the GB2312 and GBK encodings. */
+ if (mblen ("\203\062\332\066", 5) != 4)
+ return 1;
+ return 0;
+}
+changequote([,])dnl
+ ])])
+ if AC_TRY_EVAL([ac_link]) && test -s conftest$ac_exeext; then
+ # Setting LC_ALL is not enough. Need to set LC_TIME to empty, because
+ # otherwise on MacOS X 10.3.5 the LC_TIME=C from the beginning of the
+ # configure script would override the LC_ALL setting. Likewise for
+ # LC_CTYPE, which is also set at the beginning of the configure script.
+ # Test for the locale name without encoding suffix.
+ if (LC_ALL=zh_CN LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then
+ gt_cv_locale_zh_CN=zh_CN
+ else
+ # Test for the locale name with explicit encoding suffix.
+ if (LC_ALL=zh_CN.GB18030 LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then
+ gt_cv_locale_zh_CN=zh_CN.GB18030
+ else
+ # None found.
+ gt_cv_locale_zh_CN=none
+ fi
+ fi
+ else
+ # If there was a link error, due to mblen(), the system is so old that
+ # it certainly doesn't have a chinese locale.
+ gt_cv_locale_zh_CN=none
+ fi
+ rm -fr conftest*
+ ])
+ LOCALE_ZH_CN=$gt_cv_locale_zh_CN
+ AC_SUBST([LOCALE_ZH_CN])
+])