+LILYPOND_BOOK_INCLUDES = -I $(src-dir) $(DOCUMENTATION_INCLUDES)
+
+## override from cmd line to speed up.
+ANTI_ALIAS_FACTOR=2
+LILYPOND_JOBS=$(if $(CPU_COUNT),-djob-count=$(CPU_COUNT),)
+LANG_TEXIDOC_FLAGS:=$(foreach lang,$(LANGS),--header=texidoc$(lang))
+LANG_DOCTITLE_FLAGS:=$(foreach lang,$(LANGS),--header=doctitle$(lang))
+
+LILYPOND_BOOK_LILYPOND_FLAGS=-dbackend=eps \
+--formats=ps,png,pdf \
+$(LILYPOND_JOBS) \
+-dinclude-eps-fonts \
+-dgs-load-fonts \
+--header=doctitle \
+$(LANG_DOCTITLE_FLAGS) \
+--header=texidoc \
+$(LANG_TEXIDOC_FLAGS) \
+-dcheck-internal-types \
+-ddump-signatures \
+-danti-alias-factor=$(ANTI_ALIAS_FACTOR)
+
+ifeq ($(USE_EXTRACTPDFMARK),yes)
+LILYPOND_BOOK_LILYPOND_FLAGS+= \
+-dfont-export-dir=$(top-build-dir)/out-fonts \
+-dgs-never-embed-fonts
+endif
+
+ifdef QUIET_BUILD
+LILYPOND_BOOK_WARN = --loglevel=NONE
+else
+LILYPOND_BOOK_WARN = --loglevel=WARN
+endif
+
+LILYPOND_BOOK_INFO_IMAGES_DIR = $(if $(INFO_IMAGES_DIR),--info-images-dir=$(INFO_IMAGES_DIR),)
+LILYPOND_BOOK_FLAGS = $(LILYPOND_BOOK_WARN) $(LILYPOND_BOOK_INFO_IMAGES_DIR)
+
+ifeq ($(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=$(top-src-dir)/tex/::
+export TEXINPUTS
+TEXFONTMAPS=$(top-build-dir)/tex/$(outdir)::
+export TEXFONTMAPS
+
+export LYDOC_LOCALEDIR:= $(top-build-dir)/Documentation/po/out-www