colors

[Norbert Preining]

> Here is a small file that used to work but doesn't anymore:

Cannot reproduce this:

$ cat bla.tex
\input eplain
\beginpackages
\usepackage{color}
\endpackages
\long\def\red#1{{\color{red}#1}}
\red{ab}
\bye

$ pdftex bla.tex
This is pdfTeX, Version 3.141592653-2.6-1.40.24 (TeX Live 2022) (preloaded format=pdftex)
 restricted \write18 enabled.
entering extended mode
(./bla.tex (/home/norbert/tl/2022/texmf-dist/tex/eplain/eplain.tex)
(/home/norbert/tl/2022/texmf-dist/tex/plain/graphics-pln/miniltx.tex)
(/home/norbert/tl/2022/texmf-dist/tex/latex/graphics/color.sty
(/home/norbert/tl/2022/texmf-dist/tex/latex/graphics-cfg/color.cfg)
(/home/norbert/tl/2022/texmf-dist/tex/latex/graphics-def/pdftex.def))
(/home/norbert/tl/2022/texmf-dist/tex/context/base/mkii/supp-pdf.mkii
[Loading MPS to PDF converter (version 2006.09.02).]
) [1{/home/norbert/tl/2022/texmf-var/fonts/map/pdftex/updmap/pdftex.map}] )</ho
me/norbert/tl/2022/texmf-dist/fonts/type1/public/amsfonts/cm/cmr10.pfb>
Output written on bla.pdf (1 page, 9992 bytes).
Transcript written on bla.log.
$


> (/usr/local/texlive/2022/texmf-dist/tex/latex/graphics-def/pdftex.def)
> (/usr/local/texlive/2022/texmf-dist/tex/latex/graphics/mathcolor.ltx

In your case,
	supp-pdf.mkii
is not loaded, probably due to MPS to PDF converter stuff not present on
your. OTOH, on my systems

> /usr/local/texlive/2022/texmf-dist/tex/latex/graphics/mathcolor.ltx:21:

is not loaded.

Best

Norbert

--
PREINING Norbert                              https://www.preining.info
Mercari Inc.     +     IFMGA Guide     +     TU Wien     +     TeX Live
GPG: 0x860CDC13   fp: F7D8 A928 26E3 16A1 9FA0 ACF0 6CAC A448 860C DC13