diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index 217b1113eb0..1a86ff544d6 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,9 @@
+2005-08-30  Paolo Carlini  <pcarlini@suse.de>
+
+	PR libstdc++/23578 (cont)
+	* include/bits/stl_bvector.h (class vector<bool>): Add
+	a dummy data() to avoid problems in debug-mode.
+
 2005-08-30  Paolo Carlini  <pcarlini@suse.de>
 
 	* testsuite/ext/hash_map/23528.cc: New.
diff --git a/libstdc++-v3/include/bits/stl_bvector.h b/libstdc++-v3/include/bits/stl_bvector.h
index 859554411c2..afa25b1b4ca 100644
--- a/libstdc++-v3/include/bits/stl_bvector.h
+++ b/libstdc++-v3/include/bits/stl_bvector.h
@@ -808,6 +808,14 @@ template<typename _Alloc>
     back() const
     { return *(end() - 1); }
 
+    // _GLIBCXX_RESOLVE_LIB_DEFECTS
+    // DR 464. Suggestion for new member functions in standard containers.
+    // N.B. DR 464 says nothing about vector<bool> but we need something
+    // here due to the way we are implementing DR 464 in the debug-mode
+    // vector class.
+    void
+    data() { }
+
     void
     push_back(bool __x)
     {