[tex-live] fontspec 2.1 and some font packages clash

Leo Liu leoliu.pku at gmail.com
Tue Sep 21 13:48:36 CEST 2010

Hi all,

         When I updated fontspec to v2.1, I find it includes xunicode by
default. This makes an error "Command `\Finv' already defined." when using
amssymb (or some other font package) AFTER fontspec. I know it will be fine
if fontspec is loaded later. However, it makes classes for general purpose
using fontspec (for me, all ctex*.cls in ctex pkg.) clash, since it's
impossible to decide when and whether math packages are loaded. A simplified


% foo.cls by Alice





% bar.tex by Bob


\usepackage{amssymb} % oops!


Test only.



Is there any suggestions for this problem? I guess it would be OK if
fontspec provides an extra option that suppress xunicode for a future load.

Many thanks.



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