Fix Link Time Optimizations

This commit fixes compiling rTorrent with LTO (Link Time Optimizations). We just need to rename from variables in the directory_entry structure to avoid ODR and ZLIB conflicts.

src/main.cc

@@ -137,7 +137,7 @@ load_session_torrents() {
     f->set_session(true);
     f->set_init_load(true);
     f->slot_finished(std::bind(&rak::call_delete_func<core::DownloadFactory>, f));
-    f->load(entries.path() + first->d_name);
+    f->load(entries.path() + first->s_name);
     f->commit();
   }
 }