build error with current CVS

[Allin C. <cot...@wf...>]

Any ideas what's wrong here? After doing, in a directory containing 
the gnuplot CVS sources,

make clean
cvs update -d -P
./prepare
./configure --prefix=opt/gnuplot
make

I'm getting:

make[2]: Entering directory `/home/allin/cfiles/gpcvs/gnuplot/docs'
Building allterm.h
[...]
In file included from doc2x.h:70:0,
                  from doc2tex.c:63:
allterm.h:2265:33: fatal error: lua/gnuplot-tikz.help: No such file 
or directory

Earlier, ./configure gave:

** Configuration summary for gnuplot 5.1:

[...]
cairo-based pdf and png terminals: yes
lua/TikZ terminal: no
wxt terminal: yes
[...]

No lua/TikZ terminal is fine by me.

-- 
Allin Cottrell
Department of Economics
Wake Forest University