[tlbuild] Can't build TeX Live anymore

[Marc Baudoin]

Hi,

I can't build TeX Live on NetBSD/amd64 7.0.2 anymore following a
recent update to luatex.  Here's the error message:

./CXXLD.sh: g++ -Wreturn-type -Wno-unknown-pragmas -Wno-write-strings -g -O2 -Wl,-rpath -Wl,/usr/X11R7/lib -o luatex luatexdir/luatex-luatex.o mplibdir/luatex-lmplib.o -Wl,--export-dynamic -L/usr/X11R7/lib libluatex.a libff.a libluamisc.a libluasocket.a libluaffi.a /usr/local/src/texlive/Work/libs/lua52/.libs/libtexlua52.a libmplib.a /usr/local/src/texlive/Work/libs/mpfr/libmpfr.a /usr/local/src/texlive/Work/libs/gmp/libgmp.a /usr/local/src/texlive/Work/libs/cairo/libcairo.a /usr/local/src/texlive/Work/libs/pixman/libpixman.a /usr/local/src/texlive/Work/libs/zziplib/libzzip.a /usr/local/src/texlive/Work/libs/libpng/libpng.a /usr/local/src/texlive/Work/libs/zlib/libz.a /usr/local/src/texlive/Work/libs/poppler/libpoppler.a lib/lib.a /usr/local/src/texlive/Work/texk/kpathsea/.libs/libkpathsea.a libmputil.a libunilib.a libmd5.a -lm -nodefaultlibs -Wl,-Bstatic -lstdc++ -Wl,-Bdynamic -lm -lgcc_eh -lgcc -lc -lgcc_eh -lgcc
libluatex.a(libluatex_a-luainit.o): In function `lua_initialize':
/usr/local/src/texlive/Work/texk/web2c/../../../texk/web2c/luatexdir/lua/luainit.w:1131: undefined reference to `load_luatex_core_lua'