Daily bump.

[pf3gnuchains/gcc-fork.git] / libstdc++-v3 / acinclude.m4

diff --git a/libstdc++-v3/acinclude.m4 b/libstdc++-v3/acinclude.m4
index 7ed8cfd..2d55e53 100644 (file)
--- a/libstdc++-v3/acinclude.m4
+++ b/libstdc++-v3/acinclude.m4
@@ -1041,13 +1041,57 @@ AC_DEFUN(GLIBCPP_ENABLE_CLOCALE, [
   --enable-clocale=MODEL  use MODEL target-speific locale package. [default=generic]
   ], 
   if test x$enable_clocale = xno; then
-     enable_clocale=generic
+     enable_clocale=no
   fi,
-     enable_clocale=generic)
+     enable_clocale=no)
 
   enable_clocale_flag=$enable_clocale
 
-  dnl Check if a valid locale package
+  dnl Probe for locale support if no specific model is specified.
+  dnl Default to "generic"
+  if test x$enable_clocale_flag = xno; then
+    case x${target_os} in
+      xlinux* | xgnu*)
+       AC_EGREP_CPP([_GLIBCPP_ok], [
+        #include <features.h>
+        #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 2) 
+          _GLIBCPP_ok
+        #endif
+        ], enable_clocale_flag=gnu, enable_clocale_flag=generic)
+
+       # Test for bugs early in glibc-2.2.x series
+       if test x$enable_clocale_flag = xgnu; then
+         AC_TRY_RUN([
+         #define _GNU_SOURCE 1
+         #include <locale.h>
+         int main()
+         {
+           const char __one[] = "Äuglein Augmen";
+           const char __two[] = "Äuglein";
+           int i;
+           int j;
+           __locale_t  loc;
+           __locale_t  loc_dup;
+           loc = __newlocale(1 << LC_ALL, "de_DE", 0);
+           loc_dup = __duplocale(loc);
+           i = __strcoll_l(__one, __two, loc);
+           j = __strcoll_l(__one, __two, loc_dup);
+           return 0;
+         }
+         ], 
+         [enable_clocale_flag=gnu],[enable_clocale_flag=generic],
+         [enable_clocale_flag=generic])
+       fi
+
+       # ... at some point put __strxfrm_l tests in as well.
+        ;;
+      *)
+       enable_clocale_flag=generic
+       ;;
+    esac
+  fi
+
+  dnl Set configure bits for specified locale package
   case x${enable_clocale_flag} in
     xgeneric)
       AC_MSG_RESULT(generic)