diff --git a/include/ChangeLog b/include/ChangeLog
index fd5a66f40..aa3ccde65 100644
--- a/include/ChangeLog
+++ b/include/ChangeLog
@@ -1,3 +1,9 @@
+2009-10-23  Kai Tietz  <kai.tietz@onevision.com>
+
+	* splay-tree.h (libi_uhostptr_t): Add gcc specific
+	__extension__ for long long type case to silent cX9.
+	(libi_shostptr_t): Likewise.
+
 2009-10-19  Rafael Avila de Espindola  <espindola@google.com>
 
 	PR40790
diff --git a/include/splay-tree.h b/include/splay-tree.h
index 8a56a20cd..57a96c4a3 100644
--- a/include/splay-tree.h
+++ b/include/splay-tree.h
@@ -41,7 +41,13 @@ extern "C" {
   typedef unsigned long int libi_uhostptr_t;
   typedef long int libi_shostptr_t;
 #else
+#ifdef __GNUC__
+  __extension__
+#endif
   typedef unsigned long long libi_uhostptr_t;
+#ifdef __GNUC__
+  __extension__
+#endif
   typedef long long libi_shostptr_t;
 #endif