[tlbuild] luatex build failures since latest commit

[Norbert Preining]

Hi Luigi,

your commit svn 61453 broke the builds, see the CI results, see for
example
	https://github.com/TeX-Live/texlive-source/runs/4673512164

/github/workspace/Work/texk/web2c/../../../texk/web2c/luatexdir/luaharfbuzz/src/luaharfbuzz/luaharfbuzz.c:106: undefined reference to `register_variation'
12557
collect2: error: ld returned 1 exit status

But there are other errors on other archs. Seems to be rather a broken
state at the moment.

Thanks for looking into it.

Best

Norbert

--
PREINING Norbert                              https://www.preining.info
Fujitsu Research     +    IFMGA Guide     +    TU Wien    +    TeX Live
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