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include(TestCXXAcceptsFlag)
# try to use compiler flag -std=c++11
check_cxx_accepts_flag("-std=c++11" CXX_FLAG_CXX11)
if(CXX_FLAG_CXX11)
add_options (CXX ALL_BUILDS "-std=c++11")
set(CXX_STD11_FLAGS "-std=c++11")
else()
# try to use compiler flag -std=c++0x for older compilers
check_cxx_accepts_flag("-std=c++0x" CXX_FLAG_CXX0X)
if(CXX_FLAG_CXX0X)
add_options (CXX ALL_BUILDS "-std=c++0x")
set(CXX_STD11_FLAGS "-std=c++0x")
endif(CXX_FLAG_CXX0X)
endif(CXX_FLAG_CXX11)
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(CXX11 DEFAULT_MSG CXX_STD11_FLAGS)
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