Re: is TEXINPUTS.texinfo from texmf.cnf used?

[Eli Zaretskii]

> Date: Fri, 25 Jun 2021 17:32:20 +0200
> From: Patrice Dumas <pertusus@free.fr>
> 
> While looking at the install of texinfo.tex, I found that there are some
> kpathsea variables that seem to be for texinfo, but I do not know if
> they are used, and if so how.  Does someone have an idea?  It is not
> very clear in the documentation how the variables line TEXINPUTS.XXXX
> and similar are selected.
> 
> The variables are:
> 
> TEXINPUTS.texinfo       = 
> $TEXMFDOTDIR;$TEXMF/tex/{texinfo,plain,generic,latex,}//
> 
> TEXINPUTS.pdftexinfo    = 
> $TEXMFDOTDIR;$TEXMF/tex/{texinfo,plain,generic,latex,}//

AFAIR, when a program FOO runs, kpathsea uses TEXINPUTS.FOO in
preference to TEXINPUTS (or maybe prepends TEXINPUTS.FOO's value to
the value of TEXINPUTS).  Something like that.