3 dnl Copyright (C) 2003, 2005-2024 Free Software Foundation, Inc.
4 dnl This file is free software; the Free Software Foundation
5 dnl gives unlimited permission to copy and/or distribute it,
6 dnl with or without modifications, as long as this notice is preserved.
10 dnl Determine the name of a turkish locale with UTF-8 encoding.
11 AC_DEFUN_ONCE([gt_LOCALE_TR_UTF8],
13 AC_REQUIRE([AC_CANONICAL_HOST])
14 AC_REQUIRE([AM_LANGINFO_CODESET])
15 AC_CACHE_CHECK([for a turkish Unicode locale], [gt_cv_locale_tr_utf8], [
16 AC_LANG_CONFTEST([AC_LANG_SOURCE([[
19 #if HAVE_LANGINFO_CODESET
20 # include <langinfo.h>
28 /* On BeOS, locales are not implemented in libc. Rather, libintl
29 imitates locale dependent behaviour by looking at the environment
30 variables, and all locales use the UTF-8 encoding. But BeOS does not
31 implement the Turkish upper-/lowercase mappings. Therefore, let this
32 program return 1 on BeOS. */
33 /* Check whether the given locale name is recognized by the system. */
34 #if defined _WIN32 && !defined __CYGWIN__
35 /* On native Windows, setlocale(category, "") looks at the system settings,
36 not at the environment variables. Also, when an encoding suffix such
37 as ".65001" or ".54936" is specified, it succeeds but sets the LC_CTYPE
38 category of the locale to "C". */
39 if (setlocale (LC_ALL, getenv ("LC_ALL")) == NULL
40 || strcmp (setlocale (LC_CTYPE, NULL), "C") == 0)
43 if (setlocale (LC_ALL, "") == NULL) return 1;
45 /* Check whether nl_langinfo(CODESET) is nonempty and not "ASCII" or "646".
46 On Mac OS X 10.3.5 (Darwin 7.5) in the tr_TR locale, nl_langinfo(CODESET)
47 is empty, and the behaviour of Tcl 8.4 in this locale is not useful.
48 On OpenBSD 4.0, when an unsupported locale is specified, setlocale()
49 succeeds but then nl_langinfo(CODESET) is "646". In this situation,
50 some unit tests fail. */
51 #if HAVE_LANGINFO_CODESET
53 const char *cs = nl_langinfo (CODESET);
54 if (cs[0] == '\0' || strcmp (cs, "ASCII") == 0 || strcmp (cs, "646") == 0)
59 /* On Cygwin, avoid locale names without encoding suffix, because the
60 locale_charset() function relies on the encoding suffix. Note that
61 LC_ALL is set on the command line. */
62 if (strchr (getenv ("LC_ALL"), '.') == NULL) return 1;
64 /* Check whether in the abbreviation of the eighth month, the second
65 character (should be U+011F: LATIN SMALL LETTER G WITH BREVE) is
66 two bytes long, with UTF-8 encoding. */
67 t.tm_year = 1992 - 1900; t.tm_mon = 8 - 1; t.tm_mday = 19;
68 if (strftime (buf, sizeof (buf), "%b", &t) < 4
69 || buf[1] != (char) 0xc4 || buf[2] != (char) 0x9f)
71 /* Check whether the upper-/lowercase mappings are as expected for
73 if (towupper ('i') != 0x0130 || towlower (0x0130) != 'i'
74 || towupper(0x0131) != 'I' || towlower ('I') != 0x0131)
79 if AC_TRY_EVAL([ac_link]) && test -s conftest$ac_exeext; then
81 # Handle native Windows specially, because there setlocale() interprets
82 # "ar" or "ara" as "Arabic" or "Arabic_Saudi Arabia.1256",
83 # "en" or "eng" as "English" or "English_United States.1252",
84 # "fr" or "fra" as "French" or "French_France.1252",
85 # "ge"(!) or "deu"(!) as "German" or "German_Germany.1252",
86 # "ja" or "jpn" as "Japanese" or "Japanese_Japan.932",
89 # Test for the hypothetical native Windows locale name.
90 if (LC_ALL=Turkish_Turkey.65001 LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then
91 gt_cv_locale_tr_utf8=Turkish_Turkey.65001
94 gt_cv_locale_tr_utf8=none
98 # Setting LC_ALL is not enough. Need to set LC_TIME to empty, because
99 # otherwise on Mac OS X 10.3.5 the LC_TIME=C from the beginning of the
100 # configure script would override the LC_ALL setting. Likewise for
101 # LC_CTYPE, which is also set at the beginning of the configure script.
102 # Test for the usual locale name.
103 if (LC_ALL=tr_TR LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then
104 gt_cv_locale_tr_utf8=tr_TR
106 # Test for the locale name with explicit encoding suffix.
107 if (LC_ALL=tr_TR.UTF-8 LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then
108 gt_cv_locale_tr_utf8=tr_TR.UTF-8
110 # Test for the Solaris 10 locale name.
111 if (LC_ALL=tr.UTF-8 LC_TIME= LC_CTYPE= ./conftest; exit) 2>/dev/null; then
112 gt_cv_locale_tr_utf8=tr.UTF-8
115 gt_cv_locale_tr_utf8=none
122 gt_cv_locale_tr_utf8=none
126 LOCALE_TR_UTF8=$gt_cv_locale_tr_utf8
127 case $LOCALE_TR_UTF8 in #(
128 '' | *[[[:space:]\"\$\'*@<:@]]*)
129 dnl This locale name might cause trouble with sh or make.
130 AC_MSG_WARN([invalid locale "$LOCALE_TR_UTF8"; assuming "none"])
131 LOCALE_TR_UTF8=none;;
133 AC_SUBST([LOCALE_TR_UTF8])