Features: Add cxx_right_angle_brackets.

Help/variable/CMAKE_CXX_KNOWN_FEATURES.rst

@@ -137,6 +137,11 @@ The features known to this version of CMake are:
 
   .. _N2439: http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2007/n2439.htm
 
+``cxx_right_angle_brackets``
+  Right angle bracket parsing, as defined in N1757_.
+
+  .. _N1757: http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2005/n1757.html
+
 ``cxx_rvalue_references``
   R-value references, as defined in N2118_.
 

Modules/Compiler/GNU-CXX-FeatureTests.cmake

@@ -60,6 +60,7 @@ set(_cmake_feature_test_cxx_variadic_templates "${GNU44_CXX11}")
 # TODO: Should be supported by GNU 4.3
 set(GNU43_CXX11 "${_oldestSupported} && __cplusplus >= 201103L")
 set(_cmake_feature_test_cxx_decltype "${GNU43_CXX11}")
+set(_cmake_feature_test_cxx_right_angle_brackets "${GNU43_CXX11}")
 set(_cmake_feature_test_cxx_rvalue_references "${GNU43_CXX11}")
 set(_cmake_feature_test_cxx_static_assert "${GNU43_CXX11}")
 # TODO: Should be supported since GNU 3.4?

Source/cmMakefile.cxx

@@ -67,6 +67,7 @@
   F(cxx_range_for) \
   F(cxx_raw_string_literals) \
   F(cxx_reference_qualified_functions) \
+  F(cxx_right_angle_brackets) \
   F(cxx_rvalue_references) \
   F(cxx_sizeof_member) \
   F(cxx_static_assert) \

Tests/CompileFeatures/cxx_right_angle_brackets.cpp

@@ -0,0 +1,12 @@
+
+template<typename T>
+struct A
+{
+  typedef T Result;
+};
+
+void someFunc()
+{
+  A<A<int>> object;
+  (void)object;
+}