[XeTeX] TECKit warnings

[Will Robertson]

Hi,

I've just noticed that if a font's TECKit mapping doesn't exist, no  
error messages are given. (I'm still on an old XeTeX, though, so I'm  
sorry if this is already taken care of).

Something like this...

\documentclass{article}
\begin{document}
\font\1="Code2001:mapping=does-not-exist" at 12pt
\1 abc test ABC TEST ^^^^d835^^^^dc34
\end{document}

..should give at least an error message in the console output, don't  
you think?

Will

P.S.  Would you consider bundling teckit_compile into the XeTeX  
package, Jonathan? I can't see the harm in it...