define tangle =
	eldev emacs -quick -batch \
	    -eval "(package-initialize)" \
	    -load ob-tangle \
	    -eval "(org-babel-tangle-file \"$<\" \"$(PWD)/$@\"$(if $1, \"$1\"))"
endef

build.mk: literate-build.org
	$(call tangle)

include build.mk