[XeTeX] Unicode Watch character -> \VarClock

[Nicolas Girard]

Hi,

I'm trying to get the Unicode U+231A (WATCH) character to appear as
\VarClock (from ifsym).
It works fine using pdflatex but not with xelatex.
Using the following document, I'm experiencing two independant issues:
1. \DeclareUTFcharacter seems to do nothing
2. \VarClock doesn't appear

Any thoughts ?
Thanks in advance,

Nicolas

%===========
\documentclass{article}
\usepackage[clock]{ifsym}
\usepackage{ifxetex}

\ifxetex
  \usepackage{fontspec,xunicode,xltxtra}
  \DeclareUTFcharacter{x00C0}{\VarClock} % À
  \DeclareUTFcharacter{x231A}{\VarClock} % U+231A WATCH
\else
  \usepackage[utf8]{inputenc}
  \RequirePackage[T1]{fontenc}
  \usepackage{lmodern}
  \DeclareUnicodeCharacter{00C0}{\VarClock} % À
  \DeclareUnicodeCharacter{231A}{\VarClock} % U+231A WATCH
\fi
\begin{document}

À/⌚

\VarClock

\end{document}
%===========