Index: include/log4cxx/log4cxx.h
===================================================================
--- include/log4cxx/log4cxx.h	(revision 2511)
+++ include/log4cxx/log4cxx.h	(working copy)
@@ -83,8 +83,6 @@
 extern template class LOG4CXX_EXPORT log4cxx::helpers::ObjectPtrT<T>; \
 typedef log4cxx::helpers::ObjectPtrT<T> T##Ptr
 #define LOG4CXX_LIST_DEF(N, T) \
-extern template class LOG4CXX_EXPORT std::allocator<T>; \
-extern template class LOG4CXX_EXPORT std::vector<T>; \
 typedef std::vector<T> N
 //
 //   pointer and list definition macros for all other cases
Index: src/main/include/log4cxx/log4cxx.h
===================================================================
--- src/main/include/log4cxx/log4cxx.h	(revision 2511)
+++ src/main/include/log4cxx/log4cxx.h	(working copy)
@@ -64,6 +64,8 @@
 #endif
 
 
+#include <memory>
+
 //
 //   pointer and list definition macros when building DLL using VC
 //
@@ -72,8 +74,6 @@
 template class LOG4CXX_EXPORT log4cxx::helpers::ObjectPtrT<T>; \
 typedef log4cxx::helpers::ObjectPtrT<T> T##Ptr
 #define LOG4CXX_LIST_DEF(N, T) \
-template class LOG4CXX_EXPORT std::allocator<T>; \
-template class LOG4CXX_EXPORT std::vector<T>; \
 typedef std::vector<T> N
 //
 //   pointer and list definition macros when linking with DLL using VC