Features: Record for AppleClang 5.1

Apple's Clang 5.1 already supports most of the C and C++ features CMake
enumerates.

4 files changed, 104 insertions, 0 deletions

diff --git a/Modules/Compiler/AppleClang-C-FeatureTests.cmake b/Modules/Compiler/AppleClang-C-FeatureTests.cmake
new file mode 100644
index 0000000..ec1d43f
--- /dev/null
+++ b/Modules/Compiler/AppleClang-C-FeatureTests.cmake
@@ -0,0 +1,11 @@
+
+set(_cmake_oldestSupported "((__clang_major__ * 100) + __clang_minor__) >= 501")
+
+set(AppleClang_C11 "${_cmake_oldestSupported} && defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L")
+set(_cmake_feature_test_c_static_assert "${AppleClang_C11}")
+set(AppleClang_C99 "${_cmake_oldestSupported} && defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L")
+set(_cmake_feature_test_c_restrict "${AppleClang_C99}")
+set(_cmake_feature_test_c_variadic_macros "${AppleClang_C99}")
+
+set(AppleClang_C90 "${_cmake_oldestSupported} && !defined(__STDC_VERSION__)")
+set(_cmake_feature_test_c_function_prototypes "${AppleClang_C90}")
diff --git a/Modules/Compiler/AppleClang-C.cmake b/Modules/Compiler/AppleClang-C.cmake
index 98fcd0b..10edc74 100644
--- a/Modules/Compiler/AppleClang-C.cmake
+++ b/Modules/Compiler/AppleClang-C.cmake
@@ -1,2 +1,33 @@
 include(Compiler/Clang)
 __compiler_clang(C)
+
+if(NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 5.1)
+  set(CMAKE_C90_STANDARD_COMPILE_OPTION "-std=c90")
+  set(CMAKE_C90_EXTENSION_COMPILE_OPTION "-std=gnu90")
+
+  set(CMAKE_C99_STANDARD_COMPILE_OPTION "-std=c99")
+  set(CMAKE_C99_EXTENSION_COMPILE_OPTION "-std=gnu99")
+
+  set(CMAKE_C11_STANDARD_COMPILE_OPTION "-std=c11")
+  set(CMAKE_C11_EXTENSION_COMPILE_OPTION "-std=gnu11")
+endif()
+
+set(CMAKE_C_STANDARD_DEFAULT 99)
+
+macro(cmake_record_c_compile_features)
+  macro(_get_appleclang_features std_version list)
+    record_compiler_features(C "${std_version}" ${list})
+  endmacro()
+
+  if (UNIX AND NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 5.1)
+    _get_appleclang_features(${CMAKE_C11_STANDARD_COMPILE_OPTION} CMAKE_C11_COMPILE_FEATURES)
+    if (_result EQUAL 0)
+      _get_appleclang_features(${CMAKE_C99_STANDARD_COMPILE_OPTION} CMAKE_C99_COMPILE_FEATURES)
+    endif()
+    if (_result EQUAL 0)
+      _get_appleclang_features(${CMAKE_C90_STANDARD_COMPILE_OPTION} CMAKE_C90_COMPILE_FEATURES)
+    endif()
+  else()
+    set(_result 0)
+  endif()
+endmacro()
diff --git a/Modules/Compiler/AppleClang-CXX-FeatureTests.cmake b/Modules/Compiler/AppleClang-CXX-FeatureTests.cmake
new file mode 100644
index 0000000..78bdb72
--- /dev/null
+++ b/Modules/Compiler/AppleClang-CXX-FeatureTests.cmake
@@ -0,0 +1,31 @@
+
+# No known reference for AppleClang versions.
+# Generic reference: http://clang.llvm.org/cxx_status.html
+# http://clang.llvm.org/docs/LanguageExtensions.html
+
+set(_cmake_oldestSupported "((__clang_major__ * 100) + __clang_minor__) >= 501")
+
+include("${CMAKE_CURRENT_LIST_DIR}/Clang-CXX-TestableFeatures.cmake")
+
+set(AppleClang51_CXX14 "((__clang_major__ * 100) + __clang_minor__) >= 501 && __cplusplus > 201103L")
+# http://llvm.org/bugs/show_bug.cgi?id=19242
+set(_cmake_feature_test_cxx_attribute_deprecated "${AppleClang51_CXX14}")
+# http://llvm.org/bugs/show_bug.cgi?id=19698
+set(_cmake_feature_test_cxx_decltype_auto "${AppleClang51_CXX14}")
+set(_cmake_feature_test_cxx_digit_separators "${AppleClang51_CXX14}")
+# http://llvm.org/bugs/show_bug.cgi?id=19674
+set(_cmake_feature_test_cxx_generic_lambdas "${AppleClang51_CXX14}")
+
+set(AppleClang51_CXX11 "${_cmake_oldestSupported} && __cplusplus >= 201103L")
+set(_cmake_feature_test_cxx_enum_forward_declarations "${AppleClang51_CXX11}")
+set(_cmake_feature_test_cxx_sizeof_member "${AppleClang51_CXX11}")
+set(_cmake_feature_test_cxx_extended_friend_declarations "${AppleClang51_CXX11}")
+set(_cmake_feature_test_cxx_extern_templates "${AppleClang51_CXX11}")
+set(_cmake_feature_test_cxx_func_identifier "${AppleClang51_CXX11}")
+set(_cmake_feature_test_cxx_inline_namespaces "${AppleClang51_CXX11}")
+set(_cmake_feature_test_cxx_long_long_type "${AppleClang51_CXX11}")
+set(_cmake_feature_test_cxx_right_angle_brackets "${AppleClang51_CXX11}")
+set(_cmake_feature_test_cxx_variadic_macros "${AppleClang51_CXX11}")
+
+set(AppleClang_CXX98 "${_cmake_oldestSupported} && __cplusplus >= 199711L")
+set(_cmake_feature_test_cxx_template_template_parameters "${AppleClang_CXX98}")
diff --git a/Modules/Compiler/AppleClang-CXX.cmake b/Modules/Compiler/AppleClang-CXX.cmake
index c1acae6..eb97f88 100644
--- a/Modules/Compiler/AppleClang-CXX.cmake
+++ b/Modules/Compiler/AppleClang-CXX.cmake
@@ -4,3 +4,34 @@ __compiler_clang(CXX)
 if(NOT "x${CMAKE_CXX_SIMULATE_ID}" STREQUAL "xMSVC")
   set(CMAKE_CXX_COMPILE_OPTIONS_VISIBILITY_INLINES_HIDDEN "-fvisibility-inlines-hidden")
 endif()
+
+if(NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 5.1)
+  set(CMAKE_CXX98_STANDARD_COMPILE_OPTION "-std=c++98")
+  set(CMAKE_CXX98_EXTENSION_COMPILE_OPTION "-std=gnu++98")
+
+  set(CMAKE_CXX11_STANDARD_COMPILE_OPTION "-std=c++11")
+  set(CMAKE_CXX11_EXTENSION_COMPILE_OPTION "-std=gnu++11")
+
+  set(CMAKE_CXX14_STANDARD_COMPILE_OPTION "-std=c++1y")
+  set(CMAKE_CXX14_EXTENSION_COMPILE_OPTION "-std=gnu++1y")
+endif()
+
+set(CMAKE_CXX_STANDARD_DEFAULT 98)
+
+macro(cmake_record_cxx_compile_features)
+  macro(_get_appleclang_features std_version list)
+    record_compiler_features(CXX "${std_version}" ${list})
+  endmacro()
+
+  if (UNIX AND NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 5.1)
+    _get_appleclang_features(${CMAKE_CXX14_STANDARD_COMPILE_OPTION} CMAKE_CXX14_COMPILE_FEATURES)
+    if (_result EQUAL 0)
+      _get_appleclang_features(${CMAKE_CXX11_STANDARD_COMPILE_OPTION} CMAKE_CXX11_COMPILE_FEATURES)
+    endif()
+    if (_result EQUAL 0)
+      _get_appleclang_features(${CMAKE_CXX98_STANDARD_COMPILE_OPTION} CMAKE_CXX98_COMPILE_FEATURES)
+    endif()
+  else()
+    set(_result 0)
+  endif()
+endmacro()