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I think this is a known bug in basic tex has has been fixed.</div>
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Remember to run</div>
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tlmgr update --self</div>
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as well</div>
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(I normally use `tlmgr update --all --self`)</div>
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otherwise the update programme is never updated and thus the fix to actually recreate the format again is not implemented<br>
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<span style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt; line-height:normal; color:rgb(0,0,0)">/Lars Madsen</span><br>
<span style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt; line-height:normal; color:rgb(0,0,0)">Institut for Matematik / Department of Mathematics</span><br>
<span style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt; line-height:normal; color:rgb(0,0,0)">Aarhus Universitet / Aarhus University</span><br>
<span style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt; line-height:normal; color:rgb(0,0,0)">Mere info:
</span><a href="http://au.dk/daleif@imf" tabindex="0"><span style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt; line-height:normal; color:rgb(0,0,0)">http://au.dk/daleif@math</span></a><span style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt; line-height:normal; color:rgb(0,0,0)">
/ More information: </span><a target="_blank" href="http://au.dk/en/daleif@imf" tabindex="0"><span style="font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12pt; line-height:normal; color:rgb(0,0,0)">http://au.dk/en/daleif@math</span></a><br>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> tex-live <tex-live-bounces+daleif=imf.au.dk@tug.org> on behalf of Andreas Scherer <andreas_tex@freenet.de><br>
<b>Sent:</b> 14 February 2020 15:53<br>
<b>To:</b> TeX Live <tex-live@tug.org><br>
<b>Subject:</b> [MacTeX] LaTeX format not rebuilt after package update</font>
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<div class="PlainText">Dear all,<br>
<br>
about a year ago, I installed the 'BasicTeX' distribution for MacOS<br>
(version 10.12 on Mac Mini) plus a very few extra packages and was using<br>
the TeX Live installation happily both as native 'pdflatex' and as<br>
background process for Pandoc. I regularly ran 'tlmgr update --all'.<br>
<br>
Yesterday (!), all of a sudden, Pandoc failed on a rather simple input<br>
file that was successfully compiled into PDF before. Error inspection<br>
revealed a message from 'pdflatex' along the lines<br>
<br>
LaTeX requires version 2020-02-02, but found version 2018-nn-nn<br>
<br>
(plus an 'undefined macro' error message).<br>
<br>
All *.fmt I could 'find' were located under<br>
/usr/local/texlive/2019basictex/texmf-var/web2c/pdftex/ and had, alas!,<br>
a creation date of the installation in April 2019. Closer inspection<br>
showed that 'latex.ltx' indeed had '\edef\fmtversion {2020-02-02}' in<br>
conflict with the older '(pdf)latex.fmt' file(s). After some studies I<br>
ran the incantation 'fmtutil --sys --byfmt=latex' and 'fmtutil --sys<br>
--byfmt=pdflatex' and all was fine again.<br>
<br>
Today afternoon I noticed that package 'latex' (et al.) was updated<br>
(again) by 'tlmgr update --all', but after<br>
<br>
running mktexlsr ...<br>
done running mktexlsr.<br>
regenerating fmtutil.cnf in \<br>
/usr/local/texlive/2019basictex/texmf-dist<br>
<br>
all that appeared was the final message<br>
<br>
tlmgr: package log updated: \<br>
/usr/local/texlive/2019basictex/texmf-var/web2c/tlmgr.log<br>
<br>
In contrast, my private Linux box with TeX Live did never show such a<br>
situation, and after todays 'tlmgr update --all', it ran and reported<br>
<br>
running fmtutil-sys --no-error-if-no-engine=\<br>
luahbtex,luajittex,mfluajit --byfmt latex ...<br>
<br>
and recreated all (four) '*latex.fmt' files as necessary.<br>
<br>
My question is: How can I re-configure MacTeX/BasicTeX to follow suit?<br>
<br>
TIA, Andreas<br>
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