LaTeX error when building a file from xindy documentation

[jfbu]

Hi,

I get

[...]
Making all in xindy
pdflatex -interaction nonstopmode ../../../../../../utils/xindy/xindy-src/make-rules/alphabets/alphabets-doc.tex
This is pdfTeX, Version 3.14159265-2.6-1.40.21 (TeX Live 2020) (preloaded format=pdflatex)
 restricted \write18 enabled.
entering extended mode

(../../../../../../utils/xindy/xindy-src/make-rules/alphabets/alphabets-doc.tex
LaTeX2e <2020-02-02> patch level 5
L3 programming layer <2020-03-03>
(/usr/local/texlive/2020/texmf-dist/tex/latex/base/report.cls
Document Class: report 2019/12/20 v1.4l Standard LaTeX document class
....
(./belarusian/cp1251-doc.tex
(/usr/local/texlive/2020/texmf-dist/tex/latex/cyrillic/cp1251.def)

! LaTeX Error: Command \cyra unavailable in encoding T1.

(many more errors of the same type follow)

from an attempt of building TeXLive binaries from source.

I had build xindy fine this way

source$ ./Build --disable-luahbtex --disable-luajithbtex --disable-xetex --enable-xindy CFLAGS="-O3" CXXFLAGS="-O3" CLISP=/opt/src/clisp/clisp-build/clisp

./Build:      445 executables in /opt/src/tldevsrc/source/inst/bin.
done (exit status 0) Sat Mar 7 16:30:41 CET 2020


but after updating my harfbuzz library I tried

source$ ./Build --with-system-harfbuzz --disable-native-texlive-build --enable-xindy CFLAGS="-O3" CXXFLAGS="-O3" CLISP=/opt/src/clisp/clisp-build/clisp

but it fails as reported above. Perhaps the --disable-native-texlive-build (which I need due to --with-system-harfbuzz) triggers the pdflatex alphabets-doc.tex, I don't know, but anyway I end up with the above LaTeX error which may be of independent interest.

Regards,

Jean-François