diff --git a/CMakeLists.txt b/CMakeLists.txt
index a3d8eeaf..3dd3e7ea 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -28,9 +28,9 @@ enable_testing()
 
 message(STATUS "Using ${CMAKE_CXX_COMPILER} (compiler id: ${CMAKE_CXX_COMPILER_ID})")
 if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
-	set(CMAKE_CXX_FLAGS "-std=c++11 -stdlib=libc++ ${CMAKE_CXX_FLAGS}")
+	set(CMAKE_CXX_FLAGS "-std=c++11 -stdlib=libc++ -Wall ${CMAKE_CXX_FLAGS}")
 elseif ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
-	set(CMAKE_CXX_FLAGS "-std=c++11 ${CMAKE_CXX_FLAGS}")
+	set(CMAKE_CXX_FLAGS "-std=c++11 -Wall ${CMAKE_CXX_FLAGS}")
 endif ()
 
 set(include_dir "${PROJECT_SOURCE_DIR}/include")
diff --git a/include/sqlpp11/column_fwd.h b/include/sqlpp11/column_fwd.h
index d378aa6a..634bbe0b 100644
--- a/include/sqlpp11/column_fwd.h
+++ b/include/sqlpp11/column_fwd.h
@@ -31,7 +31,7 @@
 namespace sqlpp
 {
 	template<typename Table, typename ColumnSpec>
-		class column_t;
+		struct column_t;
 }
 
 #endif
diff --git a/include/sqlpp11/functions.h b/include/sqlpp11/functions.h
index 058a3b48..65c05a2e 100644
--- a/include/sqlpp11/functions.h
+++ b/include/sqlpp11/functions.h
@@ -48,8 +48,6 @@ namespace sqlpp
 	template<typename T>
 		auto value(T t) -> wrap_operand_t<T>
 		{
-			using _provided_tables = detail::type_set<>;
-			using _required_tables = ::sqlpp::detail::type_set<>;
 			static_assert(is_wrapped_value_t<wrap_operand_t<T>>::value, "value() is to be called with non-sql-type like int, or string");
 			return { t };
 		}
diff --git a/include/sqlpp11/insert_value_list.h b/include/sqlpp11/insert_value_list.h
index f02d7a47..513085d5 100644
--- a/include/sqlpp11/insert_value_list.h
+++ b/include/sqlpp11/insert_value_list.h
@@ -96,9 +96,9 @@ namespace sqlpp
 			insert_list_data_t& operator=(insert_list_data_t&&) = default;
 			~insert_list_data_t() = default;
 
+			std::tuple<Assignments...> _assignments; // FIXME: Need to replace _columns and _values by _assignments (connector-container requires assignments)
 			std::tuple<simple_column_t<typename Assignments::_column_t>...> _columns;
 			std::tuple<typename Assignments::_value_t...> _values;
-			std::tuple<Assignments...> _assignments; // FIXME: Need to replace _columns and _values by _assignments (connector-container requires assignments)
 			interpretable_list_t<Database> _dynamic_columns;
 			interpretable_list_t<Database> _dynamic_values;
 		};
diff --git a/include/sqlpp11/named_interpretable.h b/include/sqlpp11/named_interpretable.h
index 78af6e8c..dcbffbdb 100644
--- a/include/sqlpp11/named_interpretable.h
+++ b/include/sqlpp11/named_interpretable.h
@@ -71,7 +71,7 @@ namespace sqlpp
 
 			std::string _get_name() const
 			{
-				_impl->_get_name();
+				return _impl->_get_name();
 			}
 
 		private: