diff -up boost_1_39_0/boost/asio/ssl/detail/openssl_context_service.hpp.ossl10 boost_1_39_0/boost/asio/ssl/detail/openssl_context_service.hpp
--- boost_1_39_0/boost/asio/ssl/detail/openssl_context_service.hpp.ossl10	2008-08-09 03:59:54.000000000 +0200
+++ boost_1_39_0/boost/asio/ssl/detail/openssl_context_service.hpp	2009-08-26 11:26:25.000000000 +0200
@@ -67,7 +67,11 @@ public:
   // Create a new context implementation.
   void create(impl_type& impl, context_base::method m)
   {
+#if OPENSSL_VERSION_NUMBER >= 0x10000000L
+    const ::SSL_METHOD* ssl_method = 0;
+#else
     ::SSL_METHOD* ssl_method = 0;
+#endif
     switch (m)
     {
     case context_base::sslv2: