svoid addLibraryToCurrentProgram(S libID) {
  addLibraryToCurrentProgram(loadLibrary(libID));
}
  
svoid addLibraryToCurrentProgram(File f) ctex {
  if (f == null) ret;
  ClassLoader cl = myClassLoader();
  L<File> files = cast get(cl, 'files);
  synchronized(cl) {
    files.add(f);
    call(cl, 'addURL, f.toURI().toURL());
  }
}