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Features: Use -std=c++17 for C++ 17 on GNU 8.0+

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GNU 8 now documents official support for the `-std=c++17` flag.
This commit is contained in:
Brad King 2018-03-26 14:21:41 -04:00
parent 6792c7787a
commit 0bc3e5788a
1 changed files with 4 additions and 1 deletions
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Modules/Compiler/GNU-CXX.cmake
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@ -33,7 +33,10 @@ elseif (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.8)
set(CMAKE_CXX14_EXTENSION_COMPILE_OPTION "-std=gnu++1y") set(CMAKE_CXX14_EXTENSION_COMPILE_OPTION "-std=gnu++1y")
endif() endif()
if (NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 5.1) 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_STANDARD_COMPILE_OPTION "-std=c++1z")
set(CMAKE_CXX17_EXTENSION_COMPILE_OPTION "-std=gnu++1z") set(CMAKE_CXX17_EXTENSION_COMPILE_OPTION "-std=gnu++1z")
endif() endif()