diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index b1e3d786aba..6e7b73d90b3 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,9 @@
+2009-07-29  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	PR libstdc++/40908
+	* config/abi/pre/gnu.ver: Avoid exporting inadvertently std::mutex
+	symbols at GLIBCXX_3.4.
+
 2009-07-29  Paolo Carlini  <paolo.carlini@oracle.com>
 
 	* config/abi/pre/gnu.ver: Add GLIBCXX_3.4.13, move a symbol into it.
diff --git a/libstdc++-v3/config/abi/pre/gnu.ver b/libstdc++-v3/config/abi/pre/gnu.ver
index 91369a2af1c..9fcf6ce7a10 100644
--- a/libstdc++-v3/config/abi/pre/gnu.ver
+++ b/libstdc++-v3/config/abi/pre/gnu.ver
@@ -108,7 +108,10 @@ GLIBCXX_3.4 {
       std::locale::_S_normalize_category*;
       std::locale::_[T-Za-z]*;
 #     std::[A-Zm-r]*;
-      std::[A-Zm]*;
+#     std::[A-Zm]*;
+      std::[A-Z]*;
+      std::messages*;
+      std::money*;
 #     std::n[^u]*;
       std::n[^au]*;
       std::nu[^m]*;