diff --git a/include/boost/detail/allocator.hpp b/include/boost/detail/allocator.hpp
index 594306d..7e8cc79 100644
--- a/include/boost/detail/allocator.hpp
+++ b/include/boost/detail/allocator.hpp
@@ -22,6 +22,18 @@ using ::size_t;
 }
 #endif
 
+namespace boost{ namespace detail{
+
+template <class T>
+void allocator_construct(T* p, const T& t)
+{ new (p) T(t); }
+
+template <class T>
+void allocator_destroy(T* p)
+{ p->~T(); }
+
+} }
+
 #if !defined(BOOST_NO_STD_ALLOCATOR)
 
 #include <memory>
@@ -49,14 +61,6 @@ struct rebind_allocator
 
 namespace boost{ namespace detail{
 
-template <class T>
-void allocator_construct(T* p, const T& t)
-{ new (p) T(t); }
-
-template <class T>
-void allocator_destroy(T* p)
-{ p->~T(); }
-
 template <class T>
 class allocator
 {
@@ -137,14 +141,6 @@ struct rebind_allocator
 
 namespace boost{ namespace detail{
 
-template <class T>
-void allocator_construct(T* p, const T& t)
-{ new (p) T(t); }
-
-template <class T>
-void allocator_destroy(T* p)
-{ p->~T(); }
-
 class simple_alloc
 {
 public: