Gabriele Cosmo
36 lines
1.5 KiB
CMake
36 lines
1.5 KiB
CMake
#.rst:
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# MSVC Compile Features for Geant4
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# --------------------------------
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#
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# Due to use of C++17 features in visualization on Windows, Geant4 requires
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# use of VS 2017 update 3 or newer. CMake 3.10 and higher support this out
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# of the box, but with our minimum requirement of 3.8, we add this shim
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# to:
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#
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# 1) Check the version requirement
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# 2) Set the compile flags/features when using CMake < 3.10
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#
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if(MSVC)
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# Require MSVC that supports standard flags and std::filesystem
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if(CMAKE_CXX_COMPILER_VERSION VERSION_LESS 19.20)
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message(FATAL_ERROR "Geant4 requires MSVC 19.20 (Visual Studio 2019 Version 16.0) or newer")
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else()
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# Set cxxstd flags on CMake < 3.10
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if(CMAKE_VERSION VERSION_LESS 3.10)
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# VS 2015 Update 3 and above support language standard level flags,
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# with the default and minimum level being C++14.
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set(CMAKE_CXX98_STANDARD_COMPILE_OPTION "")
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set(CMAKE_CXX98_EXTENSION_COMPILE_OPTION "")
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set(CMAKE_CXX11_STANDARD_COMPILE_OPTION "")
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set(CMAKE_CXX11_EXTENSION_COMPILE_OPTION "")
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set(CMAKE_CXX14_STANDARD_COMPILE_OPTION "-std:c++14")
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set(CMAKE_CXX14_EXTENSION_COMPILE_OPTION "-std:c++14")
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set(CMAKE_CXX17_STANDARD_COMPILE_OPTION "-std:c++17")
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set(CMAKE_CXX17_EXTENSION_COMPILE_OPTION "-std:c++17")
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list(APPEND CMAKE_CXX17_COMPILE_FEATURES cxx_std_17)
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set(CMAKE_CXX_COMPILE_FEATURES ${CMAKE_CXX_COMPILE_FEATURES} "${CMAKE_CXX17_COMPILE_FEATURES}")
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endif()
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endif()
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endif()
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