38 lines
1.1 KiB
CMake
38 lines
1.1 KiB
CMake
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if(MSVC)
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# Support For C++11/14/17 Features (Modern C++)
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# https://msdn.microsoft.com/en-us/library/hh567368.aspx
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# MSVC_VERSION:
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# https://cmake.org/cmake/help/latest/variable/MSVC_VERSION.html
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if(NOT (MSVC_VERSION LESS 1600))
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message(STATUS "Visual Studio >= 2010, MSVC >= 10.0")
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else()
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message(FATAL_ERROR "The compiler ${CMAKE_CXX_COMPILER} has no C++11 support. Please use a different C++ compiler.")
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endif()
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else()
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set(CXX_FLAGS_EXTRA "")
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include(CheckCXXCompilerFlag)
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check_cxx_compiler_flag("-std=c++11" COMPILER_SUPPORTS_CXX11)
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check_cxx_compiler_flag("-std=c++0x" COMPILER_SUPPORTS_CXX0X)
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if(COMPILER_SUPPORTS_CXX11)
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set(CXX_FLAGS_EXTRA "-std=c++11")
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message(STATUS "Using flag -std=c++11")
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elseif(COMPILER_SUPPORTS_CXX0X)
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set(CXX_FLAGS_EXTRA "-std=c++0x")
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message(STATUS "Using flag -std=c++0x")
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else()
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message(FATAL_ERROR "The compiler ${CMAKE_CXX_COMPILER} has no C++11 support. Please use a different C++ compiler.")
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endif()
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${CXX_FLAGS_EXTRA}")
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# Ensure access this in sub directories
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set(CXX_FLAGS_EXTRA "${CXX_FLAGS_EXTRA}" CACHE STRING "Value of the extra cxx flags.")
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endif()
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