1  #include <dlfcn.h>
       2  #include <stdio.h>
       3  #include <unistd.h>
       4  
       5  static void *h;
       6  
       7  static void __attribute__((constructor))
       8  mod2init (void)
       9  {
      10    h = dlopen ("unload6mod3.so", RTLD_LAZY);
      11    if (h == NULL)
      12      {
      13        puts ("dlopen unload6mod3.so failed");
      14        fflush (stdout);
      15        _exit (1);
      16      }
      17  }
      18  
      19  static void __attribute__((destructor))
      20  mod2fini (void)
      21  {
      22    dlclose (h);
      23  }