[XeTeX] How to manually create the xelatex.fmt?

[Peter Dyballa]

Am 20.10.2011 um 16:54 schrieb Chris Travers:

> One of the other commentors talks about documents that don't render on
> all versions of TexLive.  If a client of mine is depending on this
> working, upgrading the various stuff from CTAN in order to get a
> security fix in an underlying program is a non-starter because it may
> break things, just as it breaks other documents.

You're mixing up things! TeX is a set of a few binaries, some of them are the TeX engines (pdfTeX, XeTeX, LuaTeX, conTeXt). The majority of the TeX software are text files. If a change in a library is breaking the TeX engine, then the change itself is faulty. If you're using a TeX function (library call) of a future version of that software, then something has to fail. If you're using an old function (library call) that has been changed, then you can't assume something useful will happen to come out.

--
Greetings

  Pete

Life is the only flaw in an otherwise perfect nonexistence
				– Schopenhauer