include(CheckCCompilerFlag)
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								function(add_if_flag_compiles flag)
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								  CHECK_C_COMPILER_FLAG("${flag}" COMPILER_HAS_THOSE_TOGGLES)
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								  set(outcome "Failed")
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								  if(COMPILER_HAS_THOSE_TOGGLES)
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								    foreach(var ${ARGN})
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								      set(${var} "${flag} ${${var}}" PARENT_SCOPE)
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								    endforeach()
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								    set(outcome "compiles")
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								  endif()
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								  message(STATUS "Testing if ${flag} can be used -- ${outcome}")
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								endfunction()
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