From 60c0d2dd812af663b2b009a253072dc481b604fe Mon Sep 17 00:00:00 2001
From: Stephen Kelly <steveire@gmail.com>
Date: Sun, 6 Apr 2014 11:22:49 +0200
Subject: [PATCH] Features: Add cxx_defaulted_move_initializers.

---
 Help/variable/CMAKE_CXX_KNOWN_FEATURES.rst                | 5 +++++
 Modules/Compiler/GNU-CXX-FeatureTests.cmake               | 1 +
 Source/cmMakefile.cxx                                     | 1 +
 Tests/CompileFeatures/cxx_defaulted_move_initializers.cpp | 7 +++++++
 4 files changed, 14 insertions(+)
 create mode 100644 Tests/CompileFeatures/cxx_defaulted_move_initializers.cpp

diff --git a/Help/variable/CMAKE_CXX_KNOWN_FEATURES.rst b/Help/variable/CMAKE_CXX_KNOWN_FEATURES.rst
index 5f578bb1c..6d34a2b98 100644
--- a/Help/variable/CMAKE_CXX_KNOWN_FEATURES.rst
+++ b/Help/variable/CMAKE_CXX_KNOWN_FEATURES.rst
@@ -62,6 +62,11 @@ The features known to this version of CMake are:
 
   .. _N2346: http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2346.htm
 
+``cxx_defaulted_move_initializers``
+  Defaulted move initializers, as defined in N3053_.
+
+  .. _N3053: http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2010/n3053.html
+
 ``cxx_delegating_constructors``
   Delegating constructors, as defined in N1986_.
 
diff --git a/Modules/Compiler/GNU-CXX-FeatureTests.cmake b/Modules/Compiler/GNU-CXX-FeatureTests.cmake
index c044f17ad..3f169d24c 100644
--- a/Modules/Compiler/GNU-CXX-FeatureTests.cmake
+++ b/Modules/Compiler/GNU-CXX-FeatureTests.cmake
@@ -30,6 +30,7 @@ set(_cmake_feature_test_cxx_user_literals "${GNU47_CXX11}")
 # TODO: Should be supported by GNU 4.6
 set(GNU46_CXX11 "${_oldestSupported} && __cplusplus >= 201103L")
 set(_cmake_feature_test_cxx_constexpr "${GNU46_CXX11}")
+set(_cmake_feature_test_cxx_defaulted_move_initializers "${GNU46_CXX11}")
 set(_cmake_feature_test_cxx_enum_forward_declarations "${GNU46_CXX11}")
 set(_cmake_feature_test_cxx_nullptr "${GNU46_CXX11}")
 set(_cmake_feature_test_cxx_range_for "${GNU46_CXX11}")
diff --git a/Source/cmMakefile.cxx b/Source/cmMakefile.cxx
index 12f770cbc..6ec40fb6b 100644
--- a/Source/cmMakefile.cxx
+++ b/Source/cmMakefile.cxx
@@ -52,6 +52,7 @@
   F(cxx_decltype_incomplete_return_types) \
   F(cxx_default_function_template_args) \
   F(cxx_defaulted_functions) \
+  F(cxx_defaulted_move_initializers) \
   F(cxx_delegating_constructors) \
   F(cxx_deleted_functions) \
   F(cxx_enum_forward_declarations) \
diff --git a/Tests/CompileFeatures/cxx_defaulted_move_initializers.cpp b/Tests/CompileFeatures/cxx_defaulted_move_initializers.cpp
new file mode 100644
index 000000000..14f987147
--- /dev/null
+++ b/Tests/CompileFeatures/cxx_defaulted_move_initializers.cpp
@@ -0,0 +1,7 @@
+
+struct A
+{
+  A() = default;
+  A& operator=(A&&) = default;
+  A(A&&) = default;
+};