A simple package which provides an \ifxetex conditional, so that other code can determine that it is running under XeTeX.
The package requires the e-TeX extensions to the TeX primitive set.
The author is Will Robertson. The package is Copyright © 2006-2010 Will Robertson.
License: lppl Version: 0.6, dated: 2010-09-12 Catalogued: 2015-08-03