# PREFIX incorrect.
export LILYPONDPREFIX:=$(build_lilypond_datadir)
-export PYTHONPATH:=$(builddir)/python/$(outdir):$(PYTHONPATH)
+export PYTHONPATH:=$(builddir)/python/$(outconfbase):$(PYTHONPATH)
## arg, TEXINPUTS, TFMFONTS, MFINPUTS may still override and thus break this
export TEXMF:={$(LILYPONDPREFIX),$(shell kpsexpand \$$TEXMF)}
CONVERT_LY = $(script-dir)/convert-ly.py
LILYPOND = $(builddir)/lily/$(outconfbase)/lilypond
LILYPOND_BOOK = $(script-dir)/lilypond-book.py
-LILYPOND_BOOK_INCLUDES = -I $(pwd) -I $(outdir) -I$(input-dir) -I $(input-dir)/tricks/ -I $(input-dir)/regression/ -I $(input-dir)/test/ -I $(input-dir)/tutorial/ -I $(builddir)/mf/$(outconfbase)/ -I $(builddir)/mf/out/
+LILYPOND_BOOK_INCLUDES = -I $(pwd) -I $(outdir) -I$(input-dir) -I $(input-dir)/regression/ -I $(input-dir)/test/ -I $(input-dir)/tutorial/ -I $(builddir)/mf/$(outconfbase)/ -I $(builddir)/mf/out/
+LILYPOND_BOOK_FLAGS = --process="lilypond-bin -f tex --header=texidoc -I $(srcdir)/input/test -e '(ly:set-option (quote internal-type-checking) \#t)'"
#texi-html for www only:
LILYPOND_BOOK_FORMAT=$(if $(subst out-www,,$(notdir $(outdir))),texi,texi-html)
-LY2DVI = $(script-dir)/lilypond.py
+LY2DVI = $(LILYPOND)
LYS_TO_TELY = $(buildscript-dir)/lys-to-tely.py