'Returns the dictionary of variable mapping depending on the SDKROOT.'

def _VariableMapping(self, sdkroot):

    sdkroot = sdkroot.lower()
    if ('iphoneos' in sdkroot):
        return self._archs['ios']
    elif ('iphonesimulator' in sdkroot):
        return self._archs['iossim']
    else:
        return self._archs['mac']
