1  #include <dlfcn.h>
       2  #include <stdio.h>
       3  #include <stdlib.h>
       4  
       5  int
       6  main (void)
       7  {
       8    void *h1;
       9    void *h2;
      10    void *mod1_bar, *mod2_bar;
      11  
      12    h1 = dlopen ("reldep7mod1.so", RTLD_GLOBAL | RTLD_LAZY);
      13    if (h1 == NULL)
      14      {
      15        printf ("cannot open reldep7mod1.so: %s\n", dlerror ());
      16        exit (1);
      17      }
      18  
      19    h2 = dlopen ("reldep7mod2.so", RTLD_GLOBAL | RTLD_LAZY);
      20    if (h2 == NULL)
      21      {
      22        printf ("cannot open reldep7mod1.so: %s\n", dlerror ());
      23        exit (1);
      24      }
      25  
      26    mod1_bar = dlsym (h1, "mod1_bar");
      27    if (mod1_bar == NULL)
      28      {
      29        printf ("cannot get address of \"mod1_bar\": %s\n", dlerror ());
      30        exit (1);
      31      }
      32  
      33    mod2_bar = dlsym (h2, "mod2_bar");
      34    if (mod2_bar == NULL)
      35      {
      36        printf ("cannot get address of \"mod2_bar\": %s\n", dlerror ());
      37        exit (1);
      38      }
      39  
      40    printf ("%d\n", ((int (*) (void)) mod1_bar) ());
      41    printf ("%d\n", ((int (*) (void)) mod2_bar) ());
      42  
      43    if (dlclose (h1) != 0)
      44      {
      45        printf ("closing h1 failed: %s\n", dlerror ());
      46        exit (1);
      47      }
      48  
      49    printf ("%d\n", ((int (*) (void)) mod2_bar) ());
      50  
      51    if (dlclose (h2) != 0)
      52      {
      53        printf ("closing h2 failed: %s\n", dlerror ());
      54        exit (1);
      55      }
      56  
      57    return 0;
      58  }