public String getLibpath() {
		List<File> f = res.filterDirectories();
		StringBuilder b = new StringBuilder();
		for (int i = 0; i < f.size(); i++) {
			b.append(f.get(i));
			if (i < f.size() - 1) {
				b.append(File.pathSeparatorChar);
			}
		}
		return b.toString();
	}