But I don't know if those are exactly the same fonts.  But I think it
should, because in my ~/.gtkrc-2.0 there is this entry.

--8<---------------cut here---------------start------------->8---
style "user-font" {
        font_name = "DejaVu Sans 9"
}
--8<---------------cut here---------------end--------------->8---

BTW, this afternoon I update emacs, and now the font is a bit better,
although not as sharp as in urxvt for example.

Bye,
Tassilo