DOCUMENTATION_INCLUDES = \
-I $(top-src-dir)/Documentation/user \
-I $(top-build-dir)/Documentation/user/$(outdir)
DOCUMENTATION_INCLUDES += $(foreach lang, $(LANGS), -I $(top-build-dir)/Documentation/$(lang)/user/$(outdir))
LILYPOND_BOOK_INCLUDES += $(DOCUMENTATION_INCLUDES)
DOCUMENTATION_INCLUDES = \
-I $(top-src-dir)/Documentation/user \
-I $(top-build-dir)/Documentation/user/$(outdir)
DOCUMENTATION_INCLUDES += $(foreach lang, $(LANGS), -I $(top-build-dir)/Documentation/$(lang)/user/$(outdir))
LILYPOND_BOOK_INCLUDES += $(DOCUMENTATION_INCLUDES)