+LILYPOND_BOOK_INCLUDES = -I $(src-dir)/ -I $(outdir) -I $(input-dir) -I $(input-dir)/regression/ -I $(input-dir)/manual/ -I $(input-dir)/tutorial/ -I $(top-build-dir)/mf/$(outconfbase)/ -I $(top-build-dir)/mf/out/ -I $(input-dir)/lsr/
+
+## override from cmd line to speed up.
+ANTI_ALIAS_FACTOR=2
+LILYPOND_JOBS=$(if $(CPU_COUNT),-djob-count=$(CPU_COUNT),)
+LANG_TEXIDOC_FLAG=$(if $(ISOLANG),--header=texidoc$(ISOLANG),)
+LILYPOND_BOOK_LILYPOND_FLAGS=-dbackend=eps --formats=ps,png,pdf $(LILYPOND_JOBS) -dinclude-eps-fonts -dgs-load-fonts --header=texidoc $(LANG_TEXIDOC_FLAG) -I $(top-src-dir)/input/manual -dcheck-internal-types -ddump-signatures -danti-alias-factor=$(ANTI_ALIAS_FACTOR)
+LILYPOND_BOOK_VERBOSE = --verbose
+LILYPOND_BOOK_INFO_IMAGES_DIR = $(if $(INFO_IMAGES_DIR),--info-images-dir=$(INFO_IMAGES_DIR),)
+LILYPOND_BOOK_FLAGS = $(LILYPOND_BOOK_VERBOSE) $(LILYPOND_BOOK_INFO_IMAGES_DIR)
+
+ifeq ($(out),)
+LILYPOND_BOOK_PROCESS = true
+LILYPOND_BOOK_FLAGS += --skip-lily-check
+else
+LILYPOND_BOOK_PROCESS = $(LILYPOND_BINARY)
+endif
+ifeq ($(out),test)
+LILYPOND_BOOK_FLAGS += --skip-png-check
+endif
+
+TEXINPUTS=$(top-src-dir)/tex/::
+export TEXINPUTS