int x;
      /*-----------------------------------------------------*\
      |	   do switch on type of token scanned		      |
      \*-----------------------------------------------------*/

#if x /*-----------------------------------------------------*\
      |	   do switch on type of token scanned		      |
      \*-----------------------------------------------------*/

void
main (int argc, char *argv[])
{
  int y;

  printf ("foo");
  /*********************************
   *  Block Comment                *
   *                               */
}