ANTI_ALIAS_FACTOR=2
LILYPOND_JOBS=$(if $(CPU_COUNT),-djob-count=$(CPU_COUNT),)
LILYPOND_BOOK_LILYPOND_FLAGS=--backend=eps --formats=ps,png,pdf $(LILYPOND_JOBS) -dinclude-eps-fonts -dgs-load-fonts --header=texidoc -I $(top-src-dir)/input/manual -dcheck-internal-types -ddump-signatures -danti-alias-factor=$(ANTI_ALIAS_FACTOR)
-
-LILYPOND_BOOK_FLAGS = --process="$(LILYPOND_BINARY) $(LILYPOND_BOOK_LILYPOND_FLAGS)"
+LILYPOND_BOOK_VERBOSE = --verbose
+LILYPOND_BOOK_FLAGS = --process="$(LILYPOND_BINARY) $(LILYPOND_BOOK_LILYPOND_FLAGS)" $(LILYPOND_BOOK_VERBOSE)
TEXINPUTS=$(top-src-dir)/tex/::
export TEXINPUTS