Re: openin_any removal for TL'26?

Hi Karl,

On 21/12/2025 22:05, Karl Berry wrote:
> There is a Kpathsea configuration variable in texmf.cnf openin_any.
> By default it is set to "a", allowing reading of any file. Has anyone
> changed that to a different value (for anything besides testing)?
> 
> We are contemplating removing openin_any in TL'26, because setting it to
> any other value often causes failure of normal runs in practice. For
> example, any use of luaotfload fails.
> 

Does this mean that `kpsewhich --var-value=openin_any` will treat 
`openin_any` as undefined for TL'26? (I have some applications which 
test the value of `openin_any` that fallback on a more restricted 
setting if the variable isn't found so I'll may have to change their 
default behaviour.)

Regards
Nicola