def __add_symbols(self, cmd):
if self.__config.define_symbols:<EOL><INDENT>symbols = self.__config.define_symbols<EOL>cmd.append('<STR_LIT>'.join(<EOL>['<STR_LIT>' % def_symbol for def_symbol in symbols]))<EOL><DEDENT>if self.__config.undefine_symbols:<EOL><INDENT>un_symbols = self.__config.undefine_symbols<EOL>cmd.append('<STR_LIT>'.join(<EOL>['<STR_LIT>' % undef_symbol for undef_symbol in un_symbols]))<EOL><DEDENT>return cmd<EOL>
Add all additional defined and undefined symbols.