-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