nettle

16 |       FAIL ();
17 |     }
18 | 
19 |   get_version = (int(*)(void)) dlsym (handle, "nettle_version_minor");
20 |   if (!get_version)
21 |     {
22 |       fprintf (stderr, "dlsym failed: %s\n", dlerror());
23 |       FAIL ();
24 |     }