#define EXTERN extern

int failures;

#ifdef DBG
extern int printf (const char *, ...);
#define FAILURE { printf ("failed at line %d\n", __LINE__); failures++; }
#define FINISH if (failures != 0) __builtin_abort (); return 0;
#else
#define FAILURE __builtin_abort ();
#define FINISH return 0;
#endif