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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 4.0)
set(CMAKE_CXX_COMPILE_OPTIONS_VISIBILITY_INLINES_HIDDEN "-fvisibility-inlines-hidden")
endif()
endif()
if(NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 3.4)
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 8.0)
set(CMAKE_CXX17_STANDARD_COMPILE_OPTION "-std=c++17")
set(CMAKE_CXX17_EXTENSION_COMPILE_OPTION "-std=gnu++17")
elseif (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 5.1)
set(CMAKE_CXX17_STANDARD_COMPILE_OPTION "-std=c++1z")
set(CMAKE_CXX17_EXTENSION_COMPILE_OPTION "-std=gnu++1z")
endif()
if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 8.0)
set(CMAKE_CXX20_STANDARD_COMPILE_OPTION "-std=c++2a")
set(CMAKE_CXX20_EXTENSION_COMPILE_OPTION "-std=gnu++2a")
endif()
__compiler_check_default_language_standard(CXX 3.4 98 6.0 14)
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