parameters: (default_variables, params)
docstring: Calculate additional variables for use in the build (called by gyp).
docstring_summary: Calculate additional variables for use in the build (called by gyp).
docstring_tokens: Calculate additional variables for use in the build ( called by gyp ) .
function: def CalculateVariables(default_variables, params):
    """Calculate additional variables for use in the build (called by gyp)."""
    default_variables.setdefault('OS', gyp.common.GetFlavor(params))
function_tokens: def CalculateVariables ( default_variables , params ) : default_variables . setdefault ( 'OS' , gyp . common . GetFlavor ( params ) )