I'm using Terminal.app, and I'd like to use emacs running inside - either locally, or after sshing to remote server. Problem is, I can't get working Meta modifier.

Namely, if I enable 'Use option as meta key', Option key works like proper Meta, but I lose ability to enter Polish diacritics (aelósznzc), that are entered with right Option.

If I disable 'Use option as meta key', my Meta is gone, but I can again use Polish characters. In this state they appear only with right Option modifier, so I guess it's Terminal.app's fault that it doesn't make a difference between left and right Option key, when the relevant preference is selected.

What are my options then? Is there a good solution for my problem? I can always use ESC as a poor man's Meta replacement, but I don't like that idea.