[cmake-developers] AppleClang-CXX.cmake needs an update

[darkapostle at rule506.net]

C++14 is a first class citizen in Xcode 6.





*diff --git a/Modules/Compiler/AppleClang-CXX.cmake b/Modules/Compiler/AppleClang-
CXX.cmake* *index 5194da4..27e4d8a 100644*


*--- a/Modules/Compiler/AppleClang-CXX.cmake*


*+++ b/Modules/Compiler/AppleClang-CXX.cmake*


@@ -13,7 +13,10 @@ if(NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.0)


set(CMAKE_CXX11_EXTENSION_COMPILE_OPTION "-std=gnu++11")


endif()





-if(NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 5.1)


+if(NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 6.0)


+  set(CMAKE_CXX14_STANDARD_COMPILE_OPTION "-std=c++14")


+  set(CMAKE_CXX14_EXTENSION_COMPILE_OPTION "-std=gnu++14")


+elseif(NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 5.1)


# AppleClang 5.0 knows this flag, but does not set a __cplusplus macro
greater than 201103L


set(CMAKE_CXX14_STANDARD_COMPILE_OPTION "-std=c++1y")


set(CMAKE_CXX14_EXTENSION_COMPILE_OPTION "-std=gnu++1y")


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