def do_ifdef(self, t):
        """
        Default handling of a #ifdef line.
        """
        self._do_if_else_condition(t[1] in self.cpp_namespace)
dataset/ETHPy150Open kayhayen/Nuitka/nuitka/build/inline_copy/lib/scons-2.3.2/SCons/cpp.py/PreProcessor.do_ifdef/original