1  #include "vers.h"
       2  
       3  FUNC_SYMVER(_old_foo, foo@VERS.0);
       4  FUNC_SYMVER(_old_bar, bar@VERS.0);
       5  SYMVER(_old_foobar, foobar@VERS.0);
       6  
       7  int
       8  bar () 
       9  {
      10    return 1;
      11  }
      12  
      13  int __attribute__ ((weak))
      14  _old_bar () 
      15  {
      16    return bar ();
      17  }
      18  
      19  int
      20  foo () 
      21  {
      22    return 2;
      23  }
      24  
      25  int
      26  _old_foo () 
      27  {
      28    return foo ();
      29  }
      30  
      31  int _old_foobar = -1;
      32  
      33  int foobar = 1;