LYS_OUTPUT_OPTION= --lily-output-dir $(LYS_OUTPUT_DIR)
LYS_OUTPUT_DIR=$(top-build-dir)/out/lybook-db/
LILYPOND_BOOK_FLAGS += $(LYS_OUTPUT_OPTION)
LYS_OUTPUT_OPTION= --lily-output-dir $(LYS_OUTPUT_DIR)
LYS_OUTPUT_DIR=$(top-build-dir)/out/lybook-db/
LILYPOND_BOOK_FLAGS += $(LYS_OUTPUT_OPTION)