1  #include <stdio.h>
       2  
       3  int bar = 10;
       4  
       5  void
       6  foo (void)
       7  {
       8    if (bar == 10)
       9      printf ("bar is in DSO.\n");
      10    else if (bar == -20)
      11      printf ("bar is in main.\n");
      12    else
      13      printf ("FAIL\n");
      14  }