cvs build web-doc fails

[Graham Percival]

cvs update; make distclean; make all;

make web-doc
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[...]
make[1]: Leaving directory `/home/gperciva/lilypond/input/regression'
make --no-builtin-rules out=www -C input/template/ WWW
make[1]: Entering directory `/home/gperciva/lilypond/input/template'
/usr/bin/python /home/gperciva/lilypond/stepmake/bin/add-html-footer.py 
--index=../../../ --name LilyPond --version 1.6.1 
--header=../../Documentation/header.html.in --footer 
../../Documentation/footer.html.in ./out-www/template.html out-www/template.html
true
make[1]: Leaving directory `/home/gperciva/lilypond/input/template'
make --no-builtin-rules out=www -C input/test/ WWW
make[1]: Entering directory `/home/gperciva/lilypond/input/test'
make[1]: *** No rule to make target 
`/home/gperciva/lilypond/input/test/tab-staff.ly', needed by 
`out-www/test.texi'.  Stop.
make[1]: Leaving directory `/home/gperciva/lilypond/input/test'
make: *** [web-doc] Error 2
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HTH,
- Graham