LILYPOND_BOOK_INCLUDES = -I $(src-dir)/ -I $(outdir) -I $(input-dir) \
-I $(input-dir)/lsr/ -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 $(top-src-dir)/input/manual
+ -I $(top-build-dir)/mf/out/ -I $(top-src-dir)/input/manual \
+ -I $(top-src-dir)/Documentation
## override from cmd line to speed up.
ANTI_ALIAS_FACTOR=2