diff --git a/include/gmock/gmock-generated-actions.h b/include/gmock/gmock-generated-actions.h
index 60b5dc57..e3f3dc27 100644
--- a/include/gmock/gmock-generated-actions.h
+++ b/include/gmock/gmock-generated-actions.h
@@ -1557,6 +1557,20 @@ DoAll(Action1 a1, Action2 a2, Action3 a3, Action4 a4, Action5 a5, Action6 a6,
 // To learn more about using these macros, please search for 'ACTION'
 // on http://code.google.com/p/googlemock/wiki/CookBook.
 
+// An internal macro needed for implementing ACTION*().
+#define GMOCK_ACTION_ARG_TYPES_AND_NAMES_UNUSED_\
+    const args_type& args GTEST_ATTRIBUTE_UNUSED_,\
+    arg0_type arg0 GTEST_ATTRIBUTE_UNUSED_,\
+    arg1_type arg1 GTEST_ATTRIBUTE_UNUSED_,\
+    arg2_type arg2 GTEST_ATTRIBUTE_UNUSED_,\
+    arg3_type arg3 GTEST_ATTRIBUTE_UNUSED_,\
+    arg4_type arg4 GTEST_ATTRIBUTE_UNUSED_,\
+    arg5_type arg5 GTEST_ATTRIBUTE_UNUSED_,\
+    arg6_type arg6 GTEST_ATTRIBUTE_UNUSED_,\
+    arg7_type arg7 GTEST_ATTRIBUTE_UNUSED_,\
+    arg8_type arg8 GTEST_ATTRIBUTE_UNUSED_,\
+    arg9_type arg9 GTEST_ATTRIBUTE_UNUSED_
+
 #define ACTION(name)\
   class name##Action {\
    public:\
@@ -1595,11 +1609,8 @@ DoAll(Action1 a1, Action2 a2, Action3 a3, Action4 a4, Action5 a5, Action6 a6,
       typename arg6_type, typename arg7_type, typename arg8_type, \
       typename arg9_type>\
   typename ::testing::internal::Function<F>::Result\
-      name##Action::\
-          gmock_Impl<F>::gmock_PerformImpl(const args_type& args, \
-              arg0_type arg0, arg1_type arg1, arg2_type arg2, arg3_type arg3, \
-              arg4_type arg4, arg5_type arg5, arg6_type arg6, arg7_type arg7, \
-              arg8_type arg8, arg9_type arg9) const
+      name##Action::gmock_Impl<F>::gmock_PerformImpl(\
+          GMOCK_ACTION_ARG_TYPES_AND_NAMES_UNUSED_) const
 
 #define ACTION_P(name, p0)\
   template <typename p0##_type>\
@@ -1644,11 +1655,8 @@ DoAll(Action1 a1, Action2 a2, Action3 a3, Action4 a4, Action5 a5, Action6 a6,
       typename arg6_type, typename arg7_type, typename arg8_type, \
       typename arg9_type>\
   typename ::testing::internal::Function<F>::Result\
-      name##ActionP<p0##_type>::\
-          gmock_Impl<F>::gmock_PerformImpl(const args_type& args, \
-              arg0_type arg0, arg1_type arg1, arg2_type arg2, arg3_type arg3, \
-              arg4_type arg4, arg5_type arg5, arg6_type arg6, arg7_type arg7, \
-              arg8_type arg8, arg9_type arg9) const
+      name##ActionP<p0##_type>::gmock_Impl<F>::gmock_PerformImpl(\
+          GMOCK_ACTION_ARG_TYPES_AND_NAMES_UNUSED_) const
 
 #define ACTION_P2(name, p0, p1)\
   template <typename p0##_type, typename p1##_type>\
@@ -1698,11 +1706,8 @@ DoAll(Action1 a1, Action2 a2, Action3 a3, Action4 a4, Action5 a5, Action6 a6,
       typename arg6_type, typename arg7_type, typename arg8_type, \
       typename arg9_type>\
   typename ::testing::internal::Function<F>::Result\
-      name##ActionP2<p0##_type, p1##_type>::\
-          gmock_Impl<F>::gmock_PerformImpl(const args_type& args, \
-              arg0_type arg0, arg1_type arg1, arg2_type arg2, arg3_type arg3, \
-              arg4_type arg4, arg5_type arg5, arg6_type arg6, arg7_type arg7, \
-              arg8_type arg8, arg9_type arg9) const
+      name##ActionP2<p0##_type, p1##_type>::gmock_Impl<F>::gmock_PerformImpl(\
+          GMOCK_ACTION_ARG_TYPES_AND_NAMES_UNUSED_) const
 
 #define ACTION_P3(name, p0, p1, p2)\
   template <typename p0##_type, typename p1##_type, typename p2##_type>\
@@ -1754,11 +1759,9 @@ DoAll(Action1 a1, Action2 a2, Action3 a3, Action4 a4, Action5 a5, Action6 a6,
       typename arg6_type, typename arg7_type, typename arg8_type, \
       typename arg9_type>\
   typename ::testing::internal::Function<F>::Result\
-      name##ActionP3<p0##_type, p1##_type, p2##_type>::\
-          gmock_Impl<F>::gmock_PerformImpl(const args_type& args, \
-              arg0_type arg0, arg1_type arg1, arg2_type arg2, arg3_type arg3, \
-              arg4_type arg4, arg5_type arg5, arg6_type arg6, arg7_type arg7, \
-              arg8_type arg8, arg9_type arg9) const
+      name##ActionP3<p0##_type, p1##_type, \
+          p2##_type>::gmock_Impl<F>::gmock_PerformImpl(\
+          GMOCK_ACTION_ARG_TYPES_AND_NAMES_UNUSED_) const
 
 #define ACTION_P4(name, p0, p1, p2, p3)\
   template <typename p0##_type, typename p1##_type, typename p2##_type, \
@@ -1819,11 +1822,9 @@ DoAll(Action1 a1, Action2 a2, Action3 a3, Action4 a4, Action5 a5, Action6 a6,
       typename arg6_type, typename arg7_type, typename arg8_type, \
       typename arg9_type>\
   typename ::testing::internal::Function<F>::Result\
-      name##ActionP4<p0##_type, p1##_type, p2##_type, p3##_type>::\
-          gmock_Impl<F>::gmock_PerformImpl(const args_type& args, \
-              arg0_type arg0, arg1_type arg1, arg2_type arg2, arg3_type arg3, \
-              arg4_type arg4, arg5_type arg5, arg6_type arg6, arg7_type arg7, \
-              arg8_type arg8, arg9_type arg9) const
+      name##ActionP4<p0##_type, p1##_type, p2##_type, \
+          p3##_type>::gmock_Impl<F>::gmock_PerformImpl(\
+          GMOCK_ACTION_ARG_TYPES_AND_NAMES_UNUSED_) const
 
 #define ACTION_P5(name, p0, p1, p2, p3, p4)\
   template <typename p0##_type, typename p1##_type, typename p2##_type, \
@@ -1887,11 +1888,9 @@ DoAll(Action1 a1, Action2 a2, Action3 a3, Action4 a4, Action5 a5, Action6 a6,
       typename arg6_type, typename arg7_type, typename arg8_type, \
       typename arg9_type>\
   typename ::testing::internal::Function<F>::Result\
-      name##ActionP5<p0##_type, p1##_type, p2##_type, p3##_type, p4##_type>::\
-          gmock_Impl<F>::gmock_PerformImpl(const args_type& args, \
-              arg0_type arg0, arg1_type arg1, arg2_type arg2, arg3_type arg3, \
-              arg4_type arg4, arg5_type arg5, arg6_type arg6, arg7_type arg7, \
-              arg8_type arg8, arg9_type arg9) const
+      name##ActionP5<p0##_type, p1##_type, p2##_type, p3##_type, \
+          p4##_type>::gmock_Impl<F>::gmock_PerformImpl(\
+          GMOCK_ACTION_ARG_TYPES_AND_NAMES_UNUSED_) const
 
 #define ACTION_P6(name, p0, p1, p2, p3, p4, p5)\
   template <typename p0##_type, typename p1##_type, typename p2##_type, \
@@ -1959,11 +1958,8 @@ DoAll(Action1 a1, Action2 a2, Action3 a3, Action4 a4, Action5 a5, Action6 a6,
       typename arg9_type>\
   typename ::testing::internal::Function<F>::Result\
       name##ActionP6<p0##_type, p1##_type, p2##_type, p3##_type, p4##_type, \
-          p5##_type>::\
-          gmock_Impl<F>::gmock_PerformImpl(const args_type& args, \
-              arg0_type arg0, arg1_type arg1, arg2_type arg2, arg3_type arg3, \
-              arg4_type arg4, arg5_type arg5, arg6_type arg6, arg7_type arg7, \
-              arg8_type arg8, arg9_type arg9) const
+          p5##_type>::gmock_Impl<F>::gmock_PerformImpl(\
+          GMOCK_ACTION_ARG_TYPES_AND_NAMES_UNUSED_) const
 
 #define ACTION_P7(name, p0, p1, p2, p3, p4, p5, p6)\
   template <typename p0##_type, typename p1##_type, typename p2##_type, \
@@ -2039,11 +2035,8 @@ DoAll(Action1 a1, Action2 a2, Action3 a3, Action4 a4, Action5 a5, Action6 a6,
       typename arg9_type>\
   typename ::testing::internal::Function<F>::Result\
       name##ActionP7<p0##_type, p1##_type, p2##_type, p3##_type, p4##_type, \
-          p5##_type, p6##_type>::\
-          gmock_Impl<F>::gmock_PerformImpl(const args_type& args, \
-              arg0_type arg0, arg1_type arg1, arg2_type arg2, arg3_type arg3, \
-              arg4_type arg4, arg5_type arg5, arg6_type arg6, arg7_type arg7, \
-              arg8_type arg8, arg9_type arg9) const
+          p5##_type, p6##_type>::gmock_Impl<F>::gmock_PerformImpl(\
+          GMOCK_ACTION_ARG_TYPES_AND_NAMES_UNUSED_) const
 
 #define ACTION_P8(name, p0, p1, p2, p3, p4, p5, p6, p7)\
   template <typename p0##_type, typename p1##_type, typename p2##_type, \
@@ -2124,11 +2117,9 @@ DoAll(Action1 a1, Action2 a2, Action3 a3, Action4 a4, Action5 a5, Action6 a6,
       typename arg9_type>\
   typename ::testing::internal::Function<F>::Result\
       name##ActionP8<p0##_type, p1##_type, p2##_type, p3##_type, p4##_type, \
-          p5##_type, p6##_type, p7##_type>::\
-          gmock_Impl<F>::gmock_PerformImpl(const args_type& args, \
-              arg0_type arg0, arg1_type arg1, arg2_type arg2, arg3_type arg3, \
-              arg4_type arg4, arg5_type arg5, arg6_type arg6, arg7_type arg7, \
-              arg8_type arg8, arg9_type arg9) const
+          p5##_type, p6##_type, \
+          p7##_type>::gmock_Impl<F>::gmock_PerformImpl(\
+          GMOCK_ACTION_ARG_TYPES_AND_NAMES_UNUSED_) const
 
 #define ACTION_P9(name, p0, p1, p2, p3, p4, p5, p6, p7, p8)\
   template <typename p0##_type, typename p1##_type, typename p2##_type, \
@@ -2213,11 +2204,9 @@ DoAll(Action1 a1, Action2 a2, Action3 a3, Action4 a4, Action5 a5, Action6 a6,
       typename arg9_type>\
   typename ::testing::internal::Function<F>::Result\
       name##ActionP9<p0##_type, p1##_type, p2##_type, p3##_type, p4##_type, \
-          p5##_type, p6##_type, p7##_type, p8##_type>::\
-          gmock_Impl<F>::gmock_PerformImpl(const args_type& args, \
-              arg0_type arg0, arg1_type arg1, arg2_type arg2, arg3_type arg3, \
-              arg4_type arg4, arg5_type arg5, arg6_type arg6, arg7_type arg7, \
-              arg8_type arg8, arg9_type arg9) const
+          p5##_type, p6##_type, p7##_type, \
+          p8##_type>::gmock_Impl<F>::gmock_PerformImpl(\
+          GMOCK_ACTION_ARG_TYPES_AND_NAMES_UNUSED_) const
 
 #define ACTION_P10(name, p0, p1, p2, p3, p4, p5, p6, p7, p8, p9)\
   template <typename p0##_type, typename p1##_type, typename p2##_type, \
@@ -2307,11 +2296,9 @@ DoAll(Action1 a1, Action2 a2, Action3 a3, Action4 a4, Action5 a5, Action6 a6,
       typename arg9_type>\
   typename ::testing::internal::Function<F>::Result\
       name##ActionP10<p0##_type, p1##_type, p2##_type, p3##_type, p4##_type, \
-          p5##_type, p6##_type, p7##_type, p8##_type, p9##_type>::\
-          gmock_Impl<F>::gmock_PerformImpl(const args_type& args, \
-              arg0_type arg0, arg1_type arg1, arg2_type arg2, arg3_type arg3, \
-              arg4_type arg4, arg5_type arg5, arg6_type arg6, arg7_type arg7, \
-              arg8_type arg8, arg9_type arg9) const
+          p5##_type, p6##_type, p7##_type, p8##_type, \
+          p9##_type>::gmock_Impl<F>::gmock_PerformImpl(\
+          GMOCK_ACTION_ARG_TYPES_AND_NAMES_UNUSED_) const
 
 // TODO(wan@google.com): move the following to a different .h file
 // such that we don't have to run 'pump' every time the code is
diff --git a/include/gmock/gmock-generated-actions.h.pump b/include/gmock/gmock-generated-actions.h.pump
index 3854279e..67359e64 100644
--- a/include/gmock/gmock-generated-actions.h.pump
+++ b/include/gmock/gmock-generated-actions.h.pump
@@ -709,6 +709,15 @@ $range j2 2..i
 // on http://code.google.com/p/googlemock/wiki/CookBook.
 
 $range i 0..n
+$range k 0..n-1
+
+// An internal macro needed for implementing ACTION*().
+#define GMOCK_ACTION_ARG_TYPES_AND_NAMES_UNUSED_\
+    const args_type& args GTEST_ATTRIBUTE_UNUSED_
+$for k [[,\
+    arg$k[[]]_type arg$k GTEST_ATTRIBUTE_UNUSED_]]
+
+
 $for i
 
 [[
@@ -735,7 +744,6 @@ $var param_field_decls2 = [[$for j
 ]]]]
 $var params = [[$for j, [[p$j]]]]
 $var param_types = [[$if i==0 [[]] $else [[<$for j, [[p$j##_type]]>]]]]
-$range k 0..n-1
 $var typename_arg_types = [[$for k, [[typename arg$k[[]]_type]]]]
 $var arg_types_and_names = [[$for k, [[arg$k[[]]_type arg$k]]]]
 $var macro_name = [[$if i==0 [[ACTION]] $elif i==1 [[ACTION_P]]
@@ -771,9 +779,8 @@ $arg_types_and_names) const;\$param_field_decls
   template <typename F>\
   template <$typename_arg_types>\
   typename ::testing::internal::Function<F>::Result\
-      $class_name$param_types::\
-          gmock_Impl<F>::gmock_PerformImpl(const args_type& args, [[]]
-$arg_types_and_names) const
+      $class_name$param_types::gmock_Impl<F>::gmock_PerformImpl(\
+          GMOCK_ACTION_ARG_TYPES_AND_NAMES_UNUSED_) const
 ]]
 $$ }  // This meta comment fixes auto-indentation in Emacs.  It won't
 $$    // show up in the generated code.
diff --git a/make/Makefile b/make/Makefile
index 0c30ebfc..ee0527e1 100644
--- a/make/Makefile
+++ b/make/Makefile
@@ -31,7 +31,7 @@ CPPFLAGS += -I$(GMOCK_DIR) -I$(GMOCK_DIR)/include \
             -I$(GTEST_DIR) -I$(GTEST_DIR)/include
 
 # Flags passed to the C++ compiler.
-CXXFLAGS += -g -Wall -Wextra -Wno-unused-parameter
+CXXFLAGS += -g -Wall -Wextra
 
 # All tests produced by this Makefile.  Remember to add new tests you
 # created to the list.