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author | Bruno Haible <bruno@clisp.org> | 2007-02-11 17:40:57 +0000 |
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committer | Bruno Haible <bruno@clisp.org> | 2007-02-11 17:40:57 +0000 |
commit | 0204694e7c105253d8e8d7e5d560fda9e8680272 (patch) | |
tree | d9c0e5ee84a5681a9318bfab83262f66a0890431 /m4/locale-zh.m4 | |
parent | 35553ad8cc1022a19a677b5634980e822492c83b (diff) | |
download | gnulib-0204694e7c105253d8e8d7e5d560fda9e8680272.tar.gz |
Tests for module 'mbschr'.
Diffstat (limited to 'm4/locale-zh.m4')
-rw-r--r-- | m4/locale-zh.m4 | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/m4/locale-zh.m4 b/m4/locale-zh.m4 new file mode 100644 index 0000000000..c7409a40f2 --- /dev/null +++ b/m4/locale-zh.m4 @@ -0,0 +1,94 @@ +# locale-zh.m4 serial 1 +dnl Copyright (C) 2003, 2005-2007 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, [ + macosx= + case "$host_os" in + darwin[56]*) ;; + darwin*) macosx=yes;; + esac + if test -n "$macosx"; then + # On Darwin 7 (MacOS X), the libc supports some locales in non-UTF-8 + # encodings, but the kernel does not support them. The documentation + # says: + # "... all code that calls BSD system routines should ensure + # that the const *char parameters of these routines are in UTF-8 + # encoding. All BSD system functions expect their string + # parameters to be in UTF-8 encoding and nothing else." + # See the comments in config.charset. Therefore we bypass the test. + gt_cv_locale_zh_CN=none + else + 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 +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. + 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. */ +#if HAVE_LANGINFO_CODESET + if (nl_langinfo (CODESET) [0] == '\0') 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$ac_exeext; then + # Setting LC_ALL is not enough. Need to set LC_TIME to empty, because + # otherwise on MacOS X 10.3.5 the LC_TIME=C from the beginning of the + # configure script would override the LC_ALL setting. Likewise for + # LC_CTYPE, which is also set at the beginning of the configure script. + # Test for the locale name without encoding suffix. + if (LC_ALL=zh_CN LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then + gt_cv_locale_zh_CN=zh_CN + else + # Test for the locale name with explicit encoding suffix. + if (LC_ALL=zh_CN.GB18030 LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then + gt_cv_locale_zh_CN=zh_CN.GB18030 + else + # None found. + gt_cv_locale_zh_CN=none + fi + fi + else + # If there was a link error, due to mblen(), the system is so old that + # it certainly doesn't have a chinese locale. + gt_cv_locale_zh_CN=none + fi + rm -fr conftest* + fi + ]) + LOCALE_ZH_CN=$gt_cv_locale_zh_CN + AC_SUBST([LOCALE_ZH_CN]) +]) |