[gambit-list] Printing unicode characters in Gambit

How can I make gambit to print a Unicode character's symbol (or glyph)? For example, I want to display the Unicode infinity symbol ∞ (#\u221E). Calling `(display #\u221E)` or `(print #\u221E)` throws the REPL into an infinite loop. (This happens for most Unicode literals I tried, not just the infinity symbol :-))

$ gsc Gambit v4.8.4

(print #\u221E)

*** ERROR IN ##wr-ch -- Can't convert to C char-string (write-char #*** ERROR IN ##wr-ch -- Can't convert to C char-string (write-char #*** ERROR IN ##wr-ch -- Can't convert to C char-string (write-char #*** ERROR IN ##wr-ch -- Can't convert to C char-string (write-char #*** ERROR IN ##wr-ch -- Can't convert to C char-string

Thanks,

--- Vijay