CoCalc -- CheckCXXFlag.cmake

GitHub Repository: stenzek/duckstation
Path: blob/master/CMakeModules/CheckCXXFlag.cmake
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include(CheckCXXCompilerFlag)

function(check_cxx_flag flag var)
    CHECK_CXX_COMPILER_FLAG("-Werror ${flag}" ${var})
    if(${var})
       set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${flag}" PARENT_SCOPE)
    endif()
endfunction()