unsetenv ("LD_LIBRARY_PATH");
main (void){  FILE *in;  FILE *out;  static char inname[] = "/tmp/bug5.in";  static char outname[] = "/tmp/bug5.out";  char *printbuf;  size_t i;  int result;  /* Create a test file.  */  in = fopen (inname, "w+");  if (in == NULL)    {      perror (inname);      return 1;    }  for (i = 0; i < 1000; ++i)    fprintf (in, "%u\n", i);  out = fopen (outname, "w");  if (out == NULL)    {      perror (outname);      return 1;    }  if (fseek (in, 0L, SEEK_SET) != 0)    abort ();  putc (getc (in), out);  i = fread (buf, 1, sizeof (buf), in);  if (i == 0)    {      perror ("fread");      return 1;    }  if (fwrite (buf, 1, i, out) != i)    {      perror ("fwrite");      return 1;    }  fclose (in);  fclose (out);  puts ("There should be no further output from this test.");  fflush (stdout);  asprintf (&printbuf, "cmp %s %s", inname, outname);  result = system (printbuf);  remove (inname);  remove (outname);  exit ((result != 0));}