[ericshliao]

Changing RTLD_NOW to RTLD_LAZY seems not work. Still the same situation.
But your suggestion did help me to identify that it has something to do with dlop(). Because ZLibrary::init() executed the following and return false:

		std::sort(names.begin(), names.end());
		for (std::vector<std::string>::const_iterator it = names.begin();
				 (it != names.end()) && (handle == 0); ++it) {
			handle = dlopen(it->c_str(), RTLD_LAZY);
		}

		if (handle == 0) {
			return false;
		}