The "crude hack" cited below effectively turns apostrophe into prime, known in groff as foot mark, \[fm], which may be what you were hoping for.
> Could you please tell me the purpose of this mapping > in unicode.tmac: > > .char ' \[cq] > > This causes all apostrophes to be typeset as closing > single quotes. Is it correct? Yes. Apostrophes and (english) single right quotes are identical glyphs. What you're probably thinking of as "apostrophe" is a crude hack invented for typewriters and is not used in "real" typography.
