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CMake: Use gnu++* instead of c++*

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This is for consistency with the CMake 3.1+ behavior and allows the use of
GNU extensions.

Thanks @rdb!
This commit is contained in:
Sam Edwards 2017-02-15 04:00:37 -07:00
parent dd490656a0
commit de03c2f7ff
1 changed files with 3 additions and 3 deletions
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6
CMakeLists.txt
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@ -10,11 +10,11 @@ enable_testing()
# the box; for older versions we take a shot in the dark:
if(CMAKE_VERSION VERSION_LESS "3.1")
include(CheckCXXCompilerFlag)
check_cxx_compiler_flag("-std=c++11" COMPILER_SUPPORTS_CXX11)
check_cxx_compiler_flag("-std=gnu++11" COMPILER_SUPPORTS_CXX11)
if(COMPILER_SUPPORTS_CXX11)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=gnu++11")
else()
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++0x")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=gnu++0x")
endif()
else()
set(CMAKE_CXX_STANDARD 11)