diff --git a/test/algorithm/pop_back.cpp b/test/algorithm/pop_back.cpp
index b594f6c8..5e45e779 100644
--- a/test/algorithm/pop_back.cpp
+++ b/test/algorithm/pop_back.cpp
@@ -65,8 +65,8 @@ main()
         std::cout << pop_back(sv) << std::endl;
 
         // Compile check only
-        begin(pop_back(sv)) == end(sv);
-        end(pop_back(sv)) == begin(sv);
+        (void)(begin(pop_back(sv)) == end(sv));
+        (void)(end(pop_back(sv)) == begin(sv));
     }
 
     // $$$ JDG: TODO add compile fail facility $$$
diff --git a/test/sequence/iterator.hpp b/test/sequence/iterator.hpp
index d9ef5e0f..d543f8eb 100644
--- a/test/sequence/iterator.hpp
+++ b/test/sequence/iterator.hpp
@@ -164,9 +164,11 @@ void test()
 
         BOOST_STATIC_ASSERT((is_same<boost::fusion::result_of::deref<i0>::type, int&>::value));
         BOOST_STATIC_ASSERT((is_same<boost::fusion::result_of::deref<i1>::type, char&>::value));
+        BOOST_STATIC_ASSERT((is_same<boost::fusion::result_of::deref<i2>::type, char&>::value));
 
         BOOST_STATIC_ASSERT((is_same<boost::fusion::result_of::value_of<i0>::type, int>::value));
         BOOST_STATIC_ASSERT((is_same<boost::fusion::result_of::value_of<i1>::type, char&>::value));
+        BOOST_STATIC_ASSERT((is_same<boost::fusion::result_of::value_of<i2>::type, char&>::value));
     }
 
     { // Testing advance
diff --git a/test/sequence/map.cpp b/test/sequence/map.cpp
index 8dada167..5a130f8b 100644
--- a/test/sequence/map.cpp
+++ b/test/sequence/map.cpp
@@ -111,6 +111,7 @@ main()
         pair<int, char> a = at_c<0>(m); (void) a;
         pair<double, std::string> b = at_c<1>(m);
         pair<abstract, int> c = at_c<2>(m);
+        (void)c;
     }
 
     // iterators & random access interface.
@@ -154,6 +155,7 @@ main()
         // make sure that the correct constructor is called
         pair<int, copy_all> p1;
         pair<int, copy_all> p2 = p1;
+        (void)p2;
     }
     
     {