1  extern void abort (void);
       2  extern int inside_main;
       3  
       4  __attribute__ ((__noinline__))
       5  char *
       6  strcpy (char *d, const char *s)
       7  {
       8    char *r = d;
       9  #if defined __OPTIMIZE__ && !defined __OPTIMIZE_SIZE__
      10    if (inside_main)
      11      abort ();
      12  #endif
      13    while ((*d++ = *s++));
      14    return r;
      15  }