avoid test failure on BeOS

[Bruno Haible]

The test-c-strcase test fails on BeOS. This is because the locale-tr.m4 has
considered the tr_TR locale "good enough" on BeOS, but - as the test failure
shows - it is not good enough. This fixes it.

2007-11-09  Bruno Haible  <address@hidden>

        * m4/locale-tr.m4 (gt_LOCALE_TR_UTF8) [BeOS]: Make this test return
        none instead of tr_TR. Fixes a failure of test-c-strcasecmp.c.

--- m4/locale-tr.m4.orig        2007-11-09 12:23:43.000000000 +0100
+++ m4/locale-tr.m4     2007-11-09 12:18:13.000000000 +0100
@@ -1,4 +1,4 @@
-# locale-tr.m4 serial 3
+# locale-tr.m4 serial 4
 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,
@@ -25,22 +25,23 @@
 int main () {
   /* On BeOS, locales are not implemented in libc.  Rather, libintl
      imitates locale dependent behaviour by looking at the environment
-     variables, and all locales use the UTF-8 encoding.  */
-#if !defined(__BEOS__)
+     variables, and all locales use the UTF-8 encoding.  But BeOS does not
+     implement the Turkish upper-/lowercase mappings.  Therefore, let this
+     program return 1 on BeOS.  */
   /* 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 tr_TR locale, nl_langinfo(CODESET)
      is empty, and the behaviour of Tcl 8.4 in this locale is not useful.  */
-# if HAVE_LANGINFO_CODESET
+#if HAVE_LANGINFO_CODESET
   if (nl_langinfo (CODESET) [0] == '\0') return 1;
-# endif
-# ifdef __CYGWIN__
+#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
+#endif
   /* Check whether in the abbreviation of the eighth month, the second
      character (should be U+011F: LATIN SMALL LETTER G WITH BREVE) is
      two bytes long, with UTF-8 encoding.  */
@@ -53,7 +54,6 @@
   if (towupper ('i') != 0x0130 || towlower (0x0130) != 'i'
       || towupper(0x0131) != 'I' || towlower ('I') != 0x0131)
     return 1;
-#endif
   return 0;
 }
 changequote([,])dnl