diff --git a/beast/http/URL.h b/beast/http/URL.h
index d9359df59..d2b01f6e5 100644
--- a/beast/http/URL.h
+++ b/beast/http/URL.h
@@ -130,9 +130,6 @@ extern std::size_t hash_value (beast::URL const& url);
 
 namespace std {
 
-template <typename T>
-struct hash;
-
 template <>
 struct hash <beast::URL>
 {
diff --git a/beast/net/IPAddress.h b/beast/net/IPAddress.h
index ef2616fae..c67a31179 100644
--- a/beast/net/IPAddress.h
+++ b/beast/net/IPAddress.h
@@ -26,16 +26,6 @@
     
 #include "../CStdInt.h"
 
-namespace std {
-
-template <typename T>
-struct hash;
-
-//template <>
-//struct hash <beast::IPAddress>;
-
-}
-
 //------------------------------------------------------------------------------
 
 namespace beast {
@@ -400,9 +390,6 @@ inline bool IPAddress::EqualWithoutPort::operator() (
 
 namespace std {
 
-template <typename T>
-struct hash;
-
 template <>
 struct hash <beast::IPAddress>
 {
diff --git a/beast/threads/impl/ServiceQueue.cpp b/beast/threads/impl/ServiceQueue.cpp
index 7f62cc3cb..9fe3bf452 100644
--- a/beast/threads/impl/ServiceQueue.cpp
+++ b/beast/threads/impl/ServiceQueue.cpp
@@ -437,10 +437,11 @@ public:
         }
     };
 
-    static int const callsPerThread = 10000;
+    static std::size_t const totalCalls = 10000;
 
     void testThreads (std::size_t n)
     {
+        std::size_t const callsPerThread (totalCalls / n);
         beginTestCase (String::fromNumber (n) + " threads");
         ServiceQueue service (n);
         std::vector <ScopedPointer <ServiceThread> > threads;