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- include(Compiler/GNU)
- __compiler_gnu(CXX)
- if (WIN32)
- if(NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.6)
- set(CMAKE_CXX_COMPILE_OPTIONS_VISIBILITY_INLINES_HIDDEN "-fno-keep-inline-dllexport")
- endif()
- else()
- if(NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.2)
- set(CMAKE_CXX_COMPILE_OPTIONS_VISIBILITY_INLINES_HIDDEN "-fvisibility-inlines-hidden")
- endif()
- endif()
- if(NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.4)
- # Supported since 4.3
- set(CMAKE_CXX98_STANDARD_COMPILE_OPTION "-std=c++98")
- set(CMAKE_CXX98_EXTENSION_COMPILE_OPTION "-std=gnu++98")
- endif()
- if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.7)
- set(CMAKE_CXX11_STANDARD_COMPILE_OPTION "-std=c++11")
- set(CMAKE_CXX11_EXTENSION_COMPILE_OPTION "-std=gnu++11")
- elseif (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.4)
- # 4.3 supports 0x variants
- set(CMAKE_CXX11_STANDARD_COMPILE_OPTION "-std=c++0x")
- set(CMAKE_CXX11_EXTENSION_COMPILE_OPTION "-std=gnu++0x")
- endif()
- if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.9)
- 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 4.8)
- set(CMAKE_CXX14_STANDARD_COMPILE_OPTION "-std=c++1y")
- set(CMAKE_CXX14_EXTENSION_COMPILE_OPTION "-std=gnu++1y")
- endif()
- if(NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.4)
- if (NOT CMAKE_CXX_COMPILER_FORCED)
- if (NOT CMAKE_CXX_STANDARD_COMPUTED_DEFAULT)
- message(FATAL_ERROR "CMAKE_CXX_STANDARD_COMPUTED_DEFAULT should be set for ${CMAKE_CXX_COMPILER_ID} (${CMAKE_CXX_COMPILER}) version ${CMAKE_CXX_COMPILER_VERSION}")
- endif()
- set(CMAKE_CXX_STANDARD_DEFAULT ${CMAKE_CXX_STANDARD_COMPUTED_DEFAULT})
- elseif(NOT DEFINED CMAKE_CXX_STANDARD_DEFAULT)
- # Compiler id was forced so just guess the default standard level.
- set(CMAKE_CXX_STANDARD_DEFAULT 98)
- endif()
- endif()
- macro(cmake_record_cxx_compile_features)
- macro(_get_gcc_features std_version list)
- record_compiler_features(CXX "${std_version}" ${list})
- endmacro()
- set(_result 0)
- if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.8)
- _get_gcc_features(${CMAKE_CXX14_STANDARD_COMPILE_OPTION} CMAKE_CXX14_COMPILE_FEATURES)
- endif()
- if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.4)
- if (_result EQUAL 0)
- _get_gcc_features(${CMAKE_CXX11_STANDARD_COMPILE_OPTION} CMAKE_CXX11_COMPILE_FEATURES)
- endif()
- if (_result EQUAL 0)
- _get_gcc_features(${CMAKE_CXX98_STANDARD_COMPILE_OPTION} CMAKE_CXX98_COMPILE_FEATURES)
- endif()
- endif()
- endmacro()
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