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Заплатка для версий CMake < 3.8.0

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This commit is contained in:
Andrei Astafev 2020-12-23 09:36:24 +03:00
parent a0cc72077c
commit 0f5a90952b
1 changed files with 8 additions and 4 deletions
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12
CMLibCompilerFlags.cmake
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@ -36,10 +36,14 @@ set(CMAKE_CXX_STANDARD_REQUIRED YES)
check_cxx_compiler_flag(-std=c++17 HAVE_FLAG_STD_CXX17)
if(HAVE_FLAG_STD_CXX17)
set(CMAKE_CXX_STANDARD 17)
check_cxx_compiler_flag(-std=gnu++17 HAVE_FLAG_STD_GNUXX17)
if(HAVE_FLAG_STD_GNUXX17)
set(CMAKE_CXX_EXTENSIONS YES)
if(${CMAKE_VERSION} VERSION_LESS "3.8.0")
check_enable_cxx_flag(-std=c++17)
else()
set(CMAKE_CXX_STANDARD 17)
check_cxx_compiler_flag(-std=gnu++17 HAVE_FLAG_STD_GNUXX17)
if(HAVE_FLAG_STD_GNUXX17)
set(CMAKE_CXX_EXTENSIONS YES)
endif()
endif()
else()
check_cxx_compiler_flag(-std=c++14 HAVE_FLAG_STD_CXX14)