regression in TeX Live 2023 concerning some math characters

Vincent Lefevre vincent at
Fri Nov 24 14:38:24 CET 2023

On 2023-11-24 14:20:03 +0100, Zdenek Wagner wrote:
> I started using TeX more than 30 years ago in MS-DOS, then in OS/2 and
> TEXINPUTS was used the same way as now. Format creation is not
> special, it just uses the same binary with a parameter asking for
> format generation and it needs \dump to save it. Anyway, TeX should
> work in a way as it always worked otherwise it must not be called TeX.
> Thus you are asking to break backward compatibility which will make
> troubles for many people who use it as it was always documented.

This is not documented in the fmtutil(1) man page. Man pages normally
have a section "ENVIRONMENT" describing the environment variables
affecting the behavior. The fmtutil(1) man page has such a section,
but it doesn't mention TEXINPUTS at all.

Vincent Lefèvre <vincent at> - Web: <>
100% accessible validated (X)HTML - Blog: <>
Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)

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