--- /dev/null
+diff --git a/include/boost/concept_check.hpp b/include/boost/concept_check.hpp\r
+index abbadb7..cab58e5 100644\r
+--- a/include/boost/concept_check.hpp\r
++++ b/include/boost/concept_check.hpp\r
+@@ -352,7 +352,7 @@ namespace boost\r
+ private:\r
+ void test(boost::false_type)\r
+ {\r
+- f(first,second);\r
++ (void) f(first,second);\r
+ Return r = f(first, second); // require operator()\r
+ (void)r;\r
+ }\r