+void *dlsym(void *__restrict, const char *__restrict);
+
+#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
+typedef struct {
+ const char *dli_fname;
+ void *dli_fbase;
+ const char *dli_sname;
+ void *dli_saddr;
+} Dl_info;
+int dladdr(void *, Dl_info *);
+int dlinfo(void *, int, void *);
+#endif