1  #include <dlfcn.h>
       2  #include <stdio.h>
       3  
       4  int
       5  main (void)
       6  {
       7    void *h = dlopen ("$ORIGIN/unload8mod1.so", RTLD_LAZY);
       8    if (h == NULL)
       9      {
      10        puts ("dlopen unload8mod1.so failed");
      11        return 1;
      12      }
      13  
      14    void *h2 = dlopen ("$ORIGIN/unload8mod1x.so", RTLD_LAZY);
      15    if (h2 == NULL)
      16      {
      17        puts ("dlopen unload8mod1x.so failed");
      18        return 1;
      19      }
      20    dlclose (h2);
      21  
      22    int (*mod1) (void) = dlsym (h, "mod1");
      23    if (mod1 == NULL)
      24      {
      25        puts ("dlsym failed");
      26        return 1;
      27      }
      28  
      29    mod1 ();
      30    dlclose (h);
      31  
      32    return 0;
      33  }