#if !defined(FOO)# error"FOO not defined"#endif#if BAR != 3# error"FOO not defined to 3"#endif#if CCOND != 2# error"CCOND not defined to 2"#endif#if defined(SWIFTCOND)# error"SWIFTCOND defined"#endifexternintObjCMain(void);intmain(void){returnObjCMain();}