extern int printf(const char*, ...);

typedef void (*atexit_callback)(void);
typedef void (*cxa_atexit_callback)(void *);
struct one_atexit_routine 
{
  int callback;
};


static int
atexit_common (const struct one_atexit_routine *r, const void *dso)


{
    return 0;
}

int main(){
    printf("hello\n");
}