LLVM_ENABLE_CXX1Y (default *off*). =D C++98 is dead. Long live C++11.
I don't exactly recommend using C++1y just yet though...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202567
91177308-0d34-0410-b5e6-
96231b3b80d8
option(LLVM_ENABLE_WARNINGS "Enable compiler warnings." ON)
endif()
-option(LLVM_ENABLE_CXX11 "Compile with C++11 enabled." ON)
+option(LLVM_ENABLE_CXX1Y "Compile with C++1y enabled." OFF)
option(LLVM_ENABLE_LIBCXX "Use libc++ if available." OFF)
option(LLVM_ENABLE_PEDANTIC "Compile with pedantic enabled." ON)
option(LLVM_ENABLE_WERROR "Fail and stop if a warning is triggered." OFF)
if (LLVM_ENABLE_WERROR)
add_llvm_definitions( -Werror )
endif (LLVM_ENABLE_WERROR)
- if (LLVM_ENABLE_CXX11)
+ if (LLVM_ENABLE_CXX1Y)
+ check_cxx_compiler_flag("-std=c++1y" CXX_SUPPORTS_CXX1Y)
+ append_if(CXX_SUPPORTS_CXX1Y "-std=c++1y" CMAKE_CXX_FLAGS)
+ else()
check_cxx_compiler_flag("-std=c++11" CXX_SUPPORTS_CXX11)
- append_if(CXX_SUPPORTS_CXX11 "-std=c++11" CMAKE_CXX_FLAGS)
- endif (LLVM_ENABLE_CXX11)
+ if (CXX_SUPPORTS_CXX11)
+ append("-std=c++11" CMAKE_CXX_FLAGS)
+ else()
+ message(FATAL_ERROR "LLVM requires C++11 support but the '-std=c++11' flag isn't supported.")
+ endif()
+ endif()
endif( MSVC )
macro(append_common_sanitizer_flags)