problems with local user format files

Ulrike Fischer news3 at
Thu Oct 15 16:31:57 CEST 2020

Am Thu, 15 Oct 2020 22:47:08 +0900 schrieb Norbert Preining:

> Hi Ulrike,
> I cannot add much to what Zdenek said. The only time I have seen this is
> with missing formats that are then auto-generated in $TEXMFVAR instead

Well it happens, and quite regularly. In the last months I deleted
more than once a format there - and I swear I didn't delete the
system formats before. And e.g just today Phelype had the problem
that he didn't see a fix because of a local format:

kpsewhich --all --engine=pdftex pdflatex.fmt

I can't say if it is due to something new in texlive - it could be
that it only pop ups now more often as expl3 checks if the format
has the correct date. 

> Possible ways to disable this behaviour are:
> - set MKTEXFMT=0 in texmf.cnf and disable automatic format generation
>   completely

Thanks I will try this. 

Ulrike Fischer

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